feat: add http_file prober

Bump modules and Go version (#148 )
* Bump modules and Go version * Bump go version in github actions
2026-02-16 10:39:54 +00:00 · 2024-01-05 16:41:43 +00:00 · 2024-01-05 16:41:58 +00:00 · 2023-03-13 00:05:29 +00:00 · 2023-03-13 00:04:51 +00:00 · 2022-09-29 13:47:22 +01:00
855 changed files with 3478 additions and 354940 deletions
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -1,24 +0,0 @@
-name: build
-on: [push, pull_request]
-jobs:
-  build:
-    name: build
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-      - name: Build the Docker image
-        run: docker build .
-      - name: Set up Go
-        uses: actions/setup-go@v1
-        with:
-          go-version: 1.15.x
-      - name: Build release snapshot
-        run: make snapshot
-      - name: Archive release snapshot
-        uses: actions/upload-artifact@v2
-        with:
-          name: release-snapshot
-          path: |
-            bin/*.tar.gz
-            bin/*.txt
-            bin/*.yaml
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -9,13 +9,25 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
+
      - name: Unshallow
        run: git fetch --prune --unshallow
+
+      - name: Set up Qemu
+        uses: docker/setup-qemu-action@v2
+
      - name: Set up Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v3
        with:
-          go-version: 1.15.x
+          go-version: 1.20.x
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
      - name: Release with GoReleaser
        run: make release
        env:
--- a/.github/workflows/test-and-snapshot.yaml
+++ b/.github/workflows/test-and-snapshot.yaml
@@ -0,0 +1,42 @@
+name: test-and-snapshot
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.20.x
+
+      - name: Test
+        run: make test
+
+  snapshot:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Qemu
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.20.x
+
+      - name: Build release snapshot
+        run: make snapshot
+
+      - name: Archive release snapshot
+        uses: actions/upload-artifact@v3
+        with:
+          name: release-snapshot
+          path: |
+            bin/*.tar.gz
+            bin/*.txt
+            bin/*.yaml
--- a/.goreleaser.yaml
+++ b/.goreleaser.yaml
@@ -8,16 +8,55 @@ builds:
      - darwin
      - windows
    goarch:
+      - "386"
      - amd64
+      - arm
+      - arm64
+      - mips64le
    flags:
      - -v
    ldflags: |
-      -X github.com/prometheus/common/version.Version={{.Env.APP_VERSION}}
-      -X github.com/prometheus/common/version.Revision={{.Env.APP_REVISION}}
+      -X github.com/prometheus/common/version.Version={{.Version}}
+      -X github.com/prometheus/common/version.Revision={{.Commit}}
      -X github.com/prometheus/common/version.Branch={{.Env.APP_BRANCH}}
      -X github.com/prometheus/common/version.BuildUser={{.Env.APP_USER}}@{{.Env.APP_HOST}}
-      -X github.com/prometheus/common/version.BuildDate={{.Env.APP_BUILD_DATE}}
+      -X github.com/prometheus/common/version.BuildDate={{.Date}}
 release:
  github:
    owner: ribbybibby
    name: ssl_exporter
+dockers:
+  - image_templates:
+      - "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}-amd64"
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+      - "--pull"
+      - "--label=org.opencontainers.image.created={{.Date}}"
+      - "--label=org.opencontainers.image.name={{.ProjectName}}"
+      - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+      - "--label=org.opencontainers.image.version={{.Version}}"
+      - "--label=org.opencontainers.image.source={{.GitURL}}"
+      - "--platform=linux/amd64"
+  - image_templates:
+      - "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}-arm64"
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+      - "--pull"
+      - "--label=org.opencontainers.image.created={{.Date}}"
+      - "--label=org.opencontainers.image.name={{.ProjectName}}"
+      - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+      - "--label=org.opencontainers.image.version={{.Version}}"
+      - "--label=org.opencontainers.image.source={{.GitURL}}"
+      - "--platform=linux/arm64"
+    goarch: arm64
+docker_manifests:
+  - name_template: "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}"
+    image_templates:
+      - "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}-amd64"
+      - "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}-arm64"
+  - name_template: "{{.Env.APP_DOCKER_IMAGE_NAME}}:latest"
+    image_templates:
+      - "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}-amd64"
+      - "{{.Env.APP_DOCKER_IMAGE_NAME}}:{{.Version}}-arm64"
--- a/20
+++ b/20
@@ -1,20 +1,16 @@
-FROM golang:1.15-buster AS build
-
-ADD . /tmp/ssl_exporter
-
-RUN cd /tmp/ssl_exporter && \
-    echo "ssl:*:100:ssl" > group && \
-    echo "ssl:*:100:100::/:/ssl_exporter" > passwd && \
-    make
+FROM alpine:3.15 as build
+RUN apk --update add ca-certificates
+RUN echo "ssl:*:100:ssl" > /tmp/group && \
+    echo "ssl:*:100:100::/:/ssl_exporter" > /tmp/passwd


 FROM scratch

-COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=build /tmp/ssl_exporter/group \
-    /tmp/ssl_exporter/passwd \
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=build /tmp/group \
+    /tmp/passwd \
    /etc/
-COPY --from=build /tmp/ssl_exporter/ssl_exporter /
+COPY ssl_exporter /

 USER ssl:ssl
 EXPOSE 9219/tcp
--- a/Dockerfile.local
+++ b/Dockerfile.local
@@ -0,0 +1,21 @@
+FROM golang:1.18-buster AS build
+
+ADD . /tmp/ssl_exporter
+
+RUN cd /tmp/ssl_exporter && \
+    echo "ssl:*:100:ssl" > group && \
+    echo "ssl:*:100:100::/:/ssl_exporter" > passwd && \
+    make
+
+
+FROM scratch
+
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=build /tmp/ssl_exporter/group \
+    /tmp/ssl_exporter/passwd \
+    /etc/
+COPY --from=build /tmp/ssl_exporter/ssl_exporter /
+
+USER ssl:ssl
+EXPOSE 9219/tcp
+ENTRYPOINT ["/ssl_exporter"]
--- a/24
+++ b/24
@@ -8,18 +8,16 @@ DOCKER_IMAGE_TAG    ?= $(subst /,-,$(shell git rev-parse --abbrev-ref HEAD))
 # Race detector is only supported on amd64.
 RACE := $(shell test $$(go env GOARCH) != "amd64" || (echo "-race"))

-export APP_HOST        ?= $(shell hostname)
-export APP_BRANCH      ?= $(shell git describe --all --contains --dirty HEAD)
-export APP_VERSION     := $(shell cat VERSION)
-export APP_REVISION    := $(shell git rev-parse HEAD)
-export APP_USER        := $(shell id -u --name)
-export APP_BUILD_DATE  := $(shell date '+%Y%m%d-%H:%M:%S')
+export APP_HOST              ?= $(shell hostname)
+export APP_BRANCH            ?= $(shell git describe --all --contains --dirty HEAD)
+export APP_USER              := $(shell id -u --name)
+export APP_DOCKER_IMAGE_NAME := ribbybibby/$(DOCKER_IMAGE_NAME)

 all: clean format vet build test

 style:
 	@echo ">> checking code style"
-	@! gofmt -s -d $(shell find . -path ./vendor -prune -o -name '*.go' -print) | grep '^'
+	@! gofmt -s -d . | grep '^'

 test:
 	@echo ">> running tests"
@@ -36,20 +34,20 @@ vet:
 build:
 	@echo ">> building binary"
 	@CGO_ENABLED=0 go build -v \
-		-ldflags "-X github.com/prometheus/common/version.Version=$(APP_VERSION) \
-		-X github.com/prometheus/common/version.Revision=$(APP_REVISION) \
+		-ldflags "-X github.com/prometheus/common/version.Version=dev \
+		-X github.com/prometheus/common/version.Revision=$(shell git rev-parse HEAD) \
 		-X github.com/prometheus/common/version.Branch=$(APP_BRANCH) \
 		-X github.com/prometheus/common/version.BuildUser=$(APP_USER)@$(APP_HOST) \
-		-X github.com/prometheus/common/version.BuildDate=$(APP_BUILD_DATE)\
+		-X github.com/prometheus/common/version.BuildDate=$(shell date '+%Y%m%d-%H:%M:%S') \
 		" \
 		-o $(BIN_NAME) .

 docker:
 	@echo ">> building docker image"
-	@docker build -t "$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" .
+	@docker build -t "$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" -f Dockerfile.local .

 $(GOPATH)/bin/goreleaser:
-	@curl -sfL https://install.goreleaser.com/github.com/goreleaser/goreleaser.sh | BINDIR=$(GOPATH)/bin sh
+	@go install github.com/goreleaser/goreleaser@v1.2.2

 snapshot: $(GOPATH)/bin/goreleaser
 	@echo ">> building snapshot"
@@ -63,4 +61,4 @@ clean:
 	@rm -Rf $(BIN_DIR)
 	@rm -Rf $(BIN_NAME)

-.PHONY: all style test format vet build docker snapshot release clean
+.PHONY: all style test format vet build docker snapshot release clean
--- a/README.md
+++ b/README.md
@@ -1,44 +1,16 @@
 # SSL Certificate Exporter

-The [blackbox_exporter](https://github.com/prometheus/blackbox_exporter) allows
-you to test the expiry date of a certificate as part of its HTTP(S) probe -
-which is great. It doesn't, however, tell you which certificate in the chain is
-nearing expiry or give you any other information that might be useful when
-sending alerts.
+Exports metrics for certificates collected from various sources:

-For instance, there's a definite value in knowing, upon first receiving an
-alert, if it's a certificate you manage directly or one further up the chain.
-It's also not always necessarily clear from the address you're polling what kind
-of certificate renewal you're looking at. Is it a Let's Encrypt, in which case
-it should be handled by automation? Or your organisation's wildcard? Maybe the
-domain is managed by a third-party and you need to submit a ticket to get it
-renewed.
+- [TCP probes](#tcp)
+- [HTTPS probes](#https)
+- [PEM files](#file)
+- [PEM files hosted via HTTP](#http_file)
+- [Kubernetes secrets](#kubernetes)
+- [Kubeconfig files](#kubeconfig)

-Whatever it is, the SSL exporter gives you visibility over those dimensions at
-the point at which you receive an alert. It also allows you to produce more
-meaningful visualisations and consoles.
-
-## Table of Contents
-
- [SSL Certificate Exporter](#ssl-certificate-exporter)
-  - [Table of Contents](#table-of-contents)
-  - [Building](#building)
-    - [Docker](#docker)
-    - [Release process](#release-process)
-  - [Usage](#usage)
-  - [Metrics](#metrics)
-  - [Configuration](#configuration)
-    - [Configuration file](#configuration-file)
-      - [&lt;module&gt;](#module)
-      - [&lt;tls_config&gt;](#tls_config)
-      - [&lt;https_probe&gt;](#https_probe)
-      - [&lt;tcp_probe&gt;](#tcp_probe)
-  - [Example Queries](#example-queries)
-  - [Peer Cerificates vs Verified Chain Certificates](#peer-cerificates-vs-verified-chain-certificates)
-  - [Proxying](#proxying)
-  - [Grafana](#grafana)
-
-Created by [gh-md-toc](https://github.com/ekalinin/github-markdown-toc)
+The metrics are labelled with fields from the certificate, which allows for
+informational dashboards and flexible alert routing.

 ## Building

@@ -47,21 +19,19 @@ Created by [gh-md-toc](https://github.com/ekalinin/github-markdown-toc)

 Similarly to the blackbox_exporter, visiting
 [http://localhost:9219/probe?target=example.com:443](http://localhost:9219/probe?target=example.com:443)
-will return certificate metrics for example.com. The `ssl_tls_connect_success`
+will return certificate metrics for example.com. The `ssl_probe_success`
 metric indicates if the probe has been successful.

 ### Docker

-    docker pull ribbybibby/ssl-exporter
    docker run -p 9219:9219 ribbybibby/ssl-exporter:latest <flags>

 ### Release process

- Update the `VERSION` file in this repository and commit to master
- [This github action](.github/workflows/release.yaml) will add a changelog and
-  upload binaries in response to a release being created in Github
- Dockerhub will build and tag a new container image in response to tags of the
-  format `/^v[0-9.]+$/`
+- Create a release in Github with a semver tag and GH actions will:
+  - Add a changelog
+  - Upload binaries
+  - Build and push a Docker image

 ## Usage

@@ -88,24 +58,32 @@ Flags:

 ## Metrics

-| Metric                        | Meaning                                                                                                 | Labels                                                        |
-| ----------------------------- | ------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------- |
-| ssl_cert_not_after            | The date after which a peer certificate expires. Expressed as a Unix Epoch Time.                        | serial_no, issuer_cn, cn, dnsnames, ips, emails, ou           |
-| ssl_cert_not_before           | The date before which a peer certificate is not valid. Expressed as a Unix Epoch Time.                  | serial_no, issuer_cn, cn, dnsnames, ips, emails, ou           |
-| ssl_ocsp_response_next_update | The nextUpdate value in the OCSP response. Expressed as a Unix Epoch Time                               |                                                               |
-| ssl_ocsp_response_produced_at | The producedAt value in the OCSP response. Expressed as a Unix Epoch Time                               |                                                               |
-| ssl_ocsp_response_revoked_at  | The revocationTime value in the OCSP response. Expressed as a Unix Epoch Time                           |                                                               |
-| ssl_ocsp_response_status      | The status in the OCSP response. 0=Good 1=Revoked 2=Unknown                                             |                                                               |
-| ssl_ocsp_response_stapled     | Does the connection state contain a stapled OCSP response? Boolean.                                     |                                                               |
-| ssl_ocsp_response_this_update | The thisUpdate value in the OCSP response. Expressed as a Unix Epoch Time                               |                                                               |
-| ssl_prober                    | The prober used by the exporter to connect to the target. Boolean.                                      | prober                                                        |
-| ssl_tls_connect_success       | Was the TLS connection successful? Boolean.                                                             |                                                               |
-| ssl_tls_version_info          | The TLS version used. Always 1.                                                                         | version                                                       |
-| ssl_verified_cert_not_after   | The date after which a certificate in the verified chain expires. Expressed as a Unix Epoch Time.       | chain_no, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou |
-| ssl_verified_cert_not_before  | The date before which a certificate in the verified chain is not valid. Expressed as a Unix Epoch Time. | chain_no, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou |
+| Metric                         | Meaning                                                                                                          | Labels                                                                      | Probers               |
+| ------------------------------ | ---------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------- | --------------------- |
+| ssl_cert_not_after             | The date after which a peer certificate expires. Expressed as a Unix Epoch Time.                                 | serial_no, issuer_cn, cn, dnsnames, ips, emails, ou                         | tcp, https, http_file |
+| ssl_cert_not_before            | The date before which a peer certificate is not valid. Expressed as a Unix Epoch Time.                           | serial_no, issuer_cn, cn, dnsnames, ips, emails, ou                         | tcp, https, http_file |
+| ssl_file_cert_not_after        | The date after which a certificate found by the file prober expires. Expressed as a Unix Epoch Time.             | file, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou                   | file                  |
+| ssl_file_cert_not_before       | The date before which a certificate found by the file prober is not valid. Expressed as a Unix Epoch Time.       | file, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou                   | file                  |
+| ssl_kubernetes_cert_not_after  | The date after which a certificate found by the kubernetes prober expires. Expressed as a Unix Epoch Time.       | namespace, secret, key, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou | kubernetes            |
+| ssl_kubernetes_cert_not_before | The date before which a certificate found by the kubernetes prober is not valid. Expressed as a Unix Epoch Time. | namespace, secret, key, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou | kubernetes            |
+| ssl_kubeconfig_cert_not_after  | The date after which a certificate found by the kubeconfig prober expires. Expressed as a Unix Epoch Time.       | kubeconfig, name, type, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou | kubeconfig            |
+| ssl_kubeconfig_cert_not_before | The date before which a certificate found by the kubeconfig prober is not valid. Expressed as a Unix Epoch Time. | kubeconfig, name, type, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou | kubeconfig            |
+| ssl_ocsp_response_next_update  | The nextUpdate value in the OCSP response. Expressed as a Unix Epoch Time                                        |                                                                             | tcp, https            |
+| ssl_ocsp_response_produced_at  | The producedAt value in the OCSP response. Expressed as a Unix Epoch Time                                        |                                                                             | tcp, https            |
+| ssl_ocsp_response_revoked_at   | The revocationTime value in the OCSP response. Expressed as a Unix Epoch Time                                    |                                                                             | tcp, https            |
+| ssl_ocsp_response_status       | The status in the OCSP response. 0=Good 1=Revoked 2=Unknown                                                      |                                                                             | tcp, https            |
+| ssl_ocsp_response_stapled      | Does the connection state contain a stapled OCSP response? Boolean.                                              |                                                                             | tcp, https            |
+| ssl_ocsp_response_this_update  | The thisUpdate value in the OCSP response. Expressed as a Unix Epoch Time                                        |                                                                             | tcp, https            |
+| ssl_probe_success              | Was the probe successful? Boolean.                                                                               |                                                                             | all                   |
+| ssl_prober                     | The prober used by the exporter to connect to the target. Boolean.                                               | prober                                                                      | all                   |
+| ssl_tls_version_info           | The TLS version used. Always 1.                                                                                  | version                                                                     | tcp, https            |
+| ssl_verified_cert_not_after    | The date after which a certificate in the verified chain expires. Expressed as a Unix Epoch Time.                | chain_no, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou               | tcp, https            |
+| ssl_verified_cert_not_before   | The date before which a certificate in the verified chain is not valid. Expressed as a Unix Epoch Time.          | chain_no, serial_no, issuer_cn, cn, dnsnames, ips, emails, ou               | tcp, https            |

 ## Configuration

+### TCP
+
 Just like with the blackbox_exporter, you should pass the targets to a single
 instance of the exporter in a scrape config with a clever bit of relabelling.
 This allows you to leverage service discovery and keeps configuration
@@ -128,8 +106,11 @@ scrape_configs:
        replacement: 127.0.0.1:9219 # SSL exporter.
 ```

-By default the exporter will make a TCP connection to the target. You can change
-this to https by setting the module parameter:
+### HTTPS
+
+By default the exporter will make a TCP connection to the target. This will be
+suitable for most cases but if you want to take advantage of http proxying you
+can use a HTTPS client by setting the `https` module parameter:

 ```yml
 scrape_configs:
@@ -150,22 +131,173 @@ scrape_configs:
        replacement: 127.0.0.1:9219
 ```

-### Configuration file
+This will use proxy servers discovered by the environment variables `HTTP_PROXY`,
+`HTTPS_PROXY` and `ALL_PROXY`. Or, you can set the `proxy_url` option in the module
+configuration.
+
+The latter takes precedence.
+
+### File
+
+The `file` prober exports `ssl_file_cert_not_after` and
+`ssl_file_cert_not_before` for PEM encoded certificates found in local files.
+
+Files local to the exporter can be scraped by providing them as the target
+parameter:
+
+```
+curl "localhost:9219/probe?module=file&target=/etc/ssl/cert.pem"
+```
+
+The target parameter supports globbing (as provided by the
+[doublestar](https://github.com/bmatcuk/doublestar) package),
+which allows you to capture multiple files at once:
+
+```
+curl "localhost:9219/probe?module=file&target=/etc/ssl/**/*.pem"
+```
+
+One specific usage of this prober could be to run the exporter as a DaemonSet in
+Kubernetes and then scrape each instance to check the expiry of certificates on
+each node:
+
+```yml
+scrape_configs:
+  - job_name: "ssl-kubernetes-file"
+    metrics_path: /probe
+    params:
+      module: ["file"]
+      target: ["/etc/kubernetes/**/*.crt"]
+    kubernetes_sd_configs:
+      - role: node
+    relabel_configs:
+      - source_labels: [__address__]
+        regex: ^(.*):(.*)$
+        target_label: __address__
+        replacement: ${1}:9219
+```
+
+### HTTP File
+
+The `http_file` prober exports `ssl_cert_not_after` and
+`ssl_cert_not_before` metrics for PEM encoded certificates hosted via HTTP or
+HTTPS.
+
+This is useful for monitoring PEM certificates that are served from a webserver
+for the purposes of [BIMI email authentication](https://postmarkapp.com/blog/what-the-heck-is-bimi).
+
+```
+curl 'localhost:9219/probe?module=http_file&target=https://amplify.valimail.com/bimi/time-warner/rWgzqvey7wX-cable_news_network_inc.pem'
+```
+
+### Kubernetes
+
+The `kubernetes` prober exports `ssl_kubernetes_cert_not_after` and
+`ssl_kubernetes_cert_not_before` for PEM encoded certificates found in secrets
+of type `kubernetes.io/tls`.
+
+Provide the namespace and name of the secret in the form `<namespace>/<name>` as
+the target:
+
+```
+curl "localhost:9219/probe?module=kubernetes&target=kube-system/secret-name"
+```
+
+Both the namespace and name portions of the target support glob matching (as provided by the
+[doublestar](https://github.com/bmatcuk/doublestar) package):
+
+```
+curl "localhost:9219/probe?module=kubernetes&target=kube-system/*"
+
+```
+
+```
+curl "localhost:9219/probe?module=kubernetes&target=*/*"
+
+```
+
+The exporter retrieves credentials and context configuration from the following
+sources in the following order:
+
+- The `kubeconfig` path in the module configuration
+- The `$KUBECONFIG` environment variable
+- The default configuration file (`$HOME/.kube/config`)
+- The in-cluster environment, if running in a pod
+
+```yml
+- job_name: "ssl-kubernetes"
+  metrics_path: /probe
+  params:
+    module: ["kubernetes"]
+  static_configs:
+    - targets:
+        - "test-namespace/nginx-cert"
+  relabel_configs:
+    - source_labels: [__address__]
+      target_label: __param_target
+    - source_labels: [__param_target]
+      target_label: instance
+    - target_label: __address__
+      replacement: 127.0.0.1:9219
+```
+
+### Kubeconfig
+
+The `kubeconfig` prober exports `ssl_kubeconfig_cert_not_after` and
+`ssl_kubeconfig_cert_not_before` for PEM encoded certificates found in the specified kubeconfig file.
+
+Kubeconfigs local to the exporter can be scraped by providing them as the target
+parameter:
+
+```
+curl "localhost:9219/probe?module=kubeconfig&target=/etc/kubernetes/admin.conf"
+```
+
+One specific usage of this prober could be to run the exporter as a DaemonSet in
+Kubernetes and then scrape each instance to check the expiry of certificates on
+each node:
+
+```yml
+scrape_configs:
+  - job_name: "ssl-kubernetes-kubeconfig"
+    metrics_path: /probe
+    params:
+      module: ["kubeconfig"]
+      target: ["/etc/kubernetes/admin.conf"]
+    kubernetes_sd_configs:
+      - role: node
+    relabel_configs:
+      - source_labels: [__address__]
+        regex: ^(.*):(.*)$
+        target_label: __address__
+        replacement: ${1}:9219
+```
+
+## Configuration file

 You can provide further module configuration by providing the path to a
 configuration file with `--config.file`. The file is written in yaml format,
 defined by the schema below.

 ```
+# The default module to use. If omitted, then the module must be provided by the
+# 'module' query parameter
+default_module: <string>
+
+# Module configuration
 modules: [<module>]
 ```

-#### \<module\>
+### \<module\>

 ```
-# The protocol over which the probe will take place (https, tcp)
+# The type of probe (https, tcp, file, kubernetes, kubeconfig)
 prober: <prober_string>

+# The probe target. If set, then the 'target' query parameter is ignored.
+# If omitted, then the 'target' query parameter is required.
+target: <string>
+
 # How long the probe will wait before giving up.
 [ timeout: <duration> ]

@@ -175,14 +307,19 @@ prober: <prober_string>
 # The specific probe configuration
 [ https: <https_probe> ]
 [ tcp: <tcp_probe> ]
+[ kubernetes: <kubernetes_probe> ]
 ```

-#### <tls_config>
+### <tls_config>

 ```
 # Disable target certificate validation.
 [ insecure_skip_verify: <boolean> | default = false ]

+# Configure TLS renegotiation support.
+# Valid options: never, once, freely
+[ renegotiation: <string> | default = never ]
+
 # The CA cert to use for the targets.
 [ ca_file: <filename> ]

@@ -196,20 +333,27 @@ prober: <prober_string>
 [ server_name: <string> ]
 ```

-#### <https_probe>
+### <https_probe>

 ```
 # HTTP proxy server to use to connect to the targets.
 [ proxy_url: <string> ]
 ```

-#### <tcp_probe>
+### <tcp_probe>

 ```
-# Use the STARTTLS command before starting TLS for those protocols that support it (smtp, ftp, imap)
+# Use the STARTTLS command before starting TLS for those protocols that support it (smtp, ftp, imap, pop3, postgres)
 [ starttls: <string> ]
 ```

+### <kubernetes_probe>
+
+```
+# The path of a kubeconfig file to configure the probe
+[ kubeconfig: <string> ]
+```
+
 ## Example Queries

 Certificates that expire within 7 days:
@@ -237,13 +381,13 @@ Number of certificates presented by the server:
 count(ssl_cert_not_after) by (instance)
 ```

-Identify instances that have failed to create a valid SSL connection:
+Identify failed probes:

 ```
-ssl_tls_connect_success == 0
+ssl_probe_success == 0
 ```

-## Peer Cerificates vs Verified Chain Certificates
+## Peer Certificates vs Verified Chain Certificates

 Metrics are exported for the `NotAfter` and `NotBefore` fields for peer
 certificates as well as for the verified chain that is
@@ -277,21 +421,7 @@ of trust between the exporter and the target. Genuine clients may hold different
 root certs than the exporter and therefore have different verified chains of
 trust.

-## Proxying
-
-The `https` prober supports the use of proxy servers discovered by the
-environment variables `HTTP_PROXY`, `HTTPS_PROXY` and `ALL_PROXY`.
-
-For instance:
-
-    $ export HTTPS_PROXY=localhost:8888
-    $ ./ssl_exporter
-
-Or, you can set the `proxy_url` option in the module.
-
-The latter takes precedence.
-
 ## Grafana

-You can find a simple dashboard [here](grafana/dashboard.json) that tracks
+You can find a simple dashboard [here](contrib/grafana/dashboard.json) that tracks
 certificate expiration dates and target connection errors.
--- a/1
+++ b/1
@@ -1 +0,0 @@
-2.1.1
--- a/config/config.go
+++ b/config/config.go
@@ -1,18 +1,22 @@
 package config

 import (
+	"crypto/tls"
 	"fmt"
 	"net/url"
 	"os"
 	"time"

-	"github.com/prometheus/common/config"
+	pconfig "github.com/prometheus/common/config"
 	yaml "gopkg.in/yaml.v3"
 )

 var (
+	// DefaultConfig is the default configuration that is used when no
+	// configuration file is provided
 	DefaultConfig = &Config{
-		map[string]Module{
+		DefaultModule: "tcp",
+		Modules: map[string]Module{
 			"tcp": Module{
 				Prober: "tcp",
 			},
@@ -22,10 +26,23 @@ var (
 			"https": Module{
 				Prober: "https",
 			},
+			"http_file": Module{
+				Prober: "http_file",
+			},
+			"file": Module{
+				Prober: "file",
+			},
+			"kubernetes": Module{
+				Prober: "kubernetes",
+			},
+			"kubeconfig": Module{
+				Prober: "kubeconfig",
+			},
 		},
 	}
 )

+// LoadConfig loads configuration from a file
 func LoadConfig(confFile string) (*Config, error) {
 	var c *Config

@@ -42,29 +59,98 @@ func LoadConfig(confFile string) (*Config, error) {
 	}

 	return c, nil
-
 }

+// Config configures the exporter
 type Config struct {
-	Modules map[string]Module `yaml:"modules"`
+	DefaultModule string            `yaml:"default_module"`
+	Modules       map[string]Module `yaml:"modules"`
 }

+// Module configures a prober
 type Module struct {
-	Prober    string           `yaml:"prober,omitempty"`
-	Timeout   time.Duration    `yaml:"timeout,omitempty"`
-	TLSConfig config.TLSConfig `yaml:"tls_config,omitempty"`
-	HTTPS     HTTPSProbe       `yaml:"https,omitempty"`
-	TCP       TCPProbe         `yaml:"tcp,omitempty"`
+	Prober     string          `yaml:"prober,omitempty"`
+	Target     string          `yaml:"target,omitempty"`
+	Timeout    time.Duration   `yaml:"timeout,omitempty"`
+	TLSConfig  TLSConfig       `yaml:"tls_config,omitempty"`
+	HTTPS      HTTPSProbe      `yaml:"https,omitempty"`
+	HTTPFile   HTTPFileProbe   `yaml:"http_file,omitempty"`
+	TCP        TCPProbe        `yaml:"tcp,omitempty"`
+	Kubernetes KubernetesProbe `yaml:"kubernetes,omitempty"`
 }

+// TLSConfig is a superset of config.TLSConfig that supports TLS renegotiation
+type TLSConfig struct {
+	CAFile             string `yaml:"ca_file,omitempty"`
+	CertFile           string `yaml:"cert_file,omitempty"`
+	KeyFile            string `yaml:"key_file,omitempty"`
+	ServerName         string `yaml:"server_name,omitempty"`
+	InsecureSkipVerify bool   `yaml:"insecure_skip_verify"`
+	// Renegotiation controls what types of TLS renegotiation are supported.
+	// Supported values: never (default), once, freely.
+	Renegotiation renegotiation `yaml:"renegotiation,omitempty"`
+}
+
+type renegotiation tls.RenegotiationSupport
+
+func (r *renegotiation) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	var v string
+	if err := unmarshal(&v); err != nil {
+		return err
+	}
+	switch v {
+	case "", "never":
+		*r = renegotiation(tls.RenegotiateNever)
+	case "once":
+		*r = renegotiation(tls.RenegotiateOnceAsClient)
+	case "freely":
+		*r = renegotiation(tls.RenegotiateFreelyAsClient)
+	default:
+		return fmt.Errorf("unsupported TLS renegotiation type %s", v)
+	}
+
+	return nil
+}
+
+// NewTLSConfig creates a new tls.Config from the given TLSConfig,
+// plus our local extensions
+func NewTLSConfig(cfg *TLSConfig) (*tls.Config, error) {
+	tlsConfig, err := pconfig.NewTLSConfig(&pconfig.TLSConfig{
+		CAFile:             cfg.CAFile,
+		CertFile:           cfg.CertFile,
+		KeyFile:            cfg.KeyFile,
+		ServerName:         cfg.ServerName,
+		InsecureSkipVerify: cfg.InsecureSkipVerify,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	tlsConfig.Renegotiation = tls.RenegotiationSupport(cfg.Renegotiation)
+
+	return tlsConfig, nil
+}
+
+// TCPProbe configures a tcp probe
 type TCPProbe struct {
 	StartTLS string `yaml:"starttls,omitempty"`
 }

+// HTTPSProbe configures a https probe
 type HTTPSProbe struct {
 	ProxyURL URL `yaml:"proxy_url,omitempty"`
 }

+// HTTPFileProbe configures a http_file probe
+type HTTPFileProbe struct {
+	ProxyURL URL `yaml:"proxy_url,omitempty"`
+}
+
+// KubernetesProbe configures a kubernetes probe
+type KubernetesProbe struct {
+	Kubeconfig string `yaml:"kubeconfig,omitempty"`
+}
+
 // URL is a custom URL type that allows validation at configuration load time
 type URL struct {
 	*url.URL
--- a/contrib/grafana/dashboard.json
+++ b/contrib/grafana/dashboard.json
@@ -240,7 +240,7 @@
      "steppedLine": false,
      "targets": [
        {
-          "expr": "(up{job=~\"$job\", instance=~\"$instance\"} == 0 or ssl_tls_connect_success{job=~\"$job\", instance=~\"$instance\"} == 0)^0",
+          "expr": "(up{job=~\"$job\", instance=~\"$instance\"} == 0 or ssl_probe_success{job=~\"$job\", instance=~\"$instance\"} == 0)^0",
          "format": "time_series",
          "instant": false,
          "legendFormat": "{{instance}}",
@@ -407,7 +407,7 @@
      ],
      "targets": [
        {
-          "expr": "ssl_tls_connect_success{instance=~\"$instance\",job=~\"$job\"} == 0",
+          "expr": "ssl_probe_success{instance=~\"$instance\",job=~\"$job\"} == 0",
          "format": "table",
          "instant": true,
          "intervalFactor": 1,
@@ -585,14 +585,14 @@
          "value": ["$__all"]
        },
        "datasource": "Prometheus",
-        "definition": "label_values(ssl_tls_connect_success, job)",
+        "definition": "label_values(ssl_probe_success, job)",
        "hide": 0,
        "includeAll": true,
        "label": "Job",
        "multi": true,
        "name": "job",
        "options": [],
-        "query": "label_values(ssl_tls_connect_success, job)",
+        "query": "label_values(ssl_probe_success, job)",
        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
--- a/examples/example.prometheus.yml
+++ b/examples/example.prometheus.yml
@@ -17,4 +17,20 @@ scrape_configs:
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
-        replacement: 127.0.0.1:9219  # SSL exporter.
+        replacement: 127.0.0.1:9219  # SSL exporter.
+  - job_name: 'ssl-files'
+    metrics_path: /probe
+    params:
+      module: ["file"]
+      target: ["/etc/ssl/**/*.pem"]
+    static_configs:
+      - targets:
+          - 127.0.0.1:9219
+  - job_name: 'ssl-kubernetes-secrets'
+    metrics_path: /probe
+    params:
+      module: ["kubernetes"]
+      target: ["kube-system/*"]
+    static_configs:
+      - targets:
+          - 127.0.0.1:9219
--- a/examples/ssl_exporter.yaml
+++ b/examples/ssl_exporter.yaml
@@ -1,3 +1,4 @@
+default_module: https
 modules:
  https:
    prober: https
@@ -5,6 +6,10 @@ modules:
    prober: https
    tls_config:
      insecure_skip_verify: true
+  https_renegotiation:
+    prober: https
+    tls_config:
+      renegotiation: freely
  https_proxy:
    prober: https
    https:
@@ -28,3 +33,18 @@ modules:
    prober: tcp
    tcp:
      starttls: smtp
+  http_file:
+    prober: http_file
+  file:
+    prober: file
+  file_ca_certificates:
+    prober: file
+    target: /etc/ssl/certs/ca-certificates.crt
+  kubernetes:
+    prober: kubernetes
+  kubernetes_kubeconfig:
+    prober: kubernetes
+    kubernetes:
+      kubeconfig: /root/.kube/config
+  kubeconfig:
+    prober: kubeconfig
--- a/go.mod
+++ b/go.mod
@@ -1,15 +1,72 @@
-module github.com/ribbybibby/ssl_exporter
+module github.com/ribbybibby/ssl_exporter/v2

 require (
-	github.com/prometheus/client_golang v1.8.0
-	github.com/prometheus/common v0.14.0
-	github.com/sirupsen/logrus v1.7.0 // indirect
-	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
-	golang.org/x/net v0.0.0-20201016165138-7b1cca2348c0 // indirect
-	golang.org/x/sys v0.0.0-20201018121011-98379d014ca7 // indirect
-	google.golang.org/protobuf v1.25.0 // indirect
-	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
+	github.com/alecthomas/kingpin/v2 v2.4.0
+	github.com/bmatcuk/doublestar/v2 v2.0.4
+	github.com/go-kit/log v0.2.1
+	github.com/prometheus/client_golang v1.18.0
+	github.com/prometheus/client_model v0.5.0
+	github.com/prometheus/common v0.45.0
+	golang.org/x/crypto v0.17.0
+	gopkg.in/yaml.v3 v3.0.1
+	k8s.io/api v0.29.0
+	k8s.io/apimachinery v0.29.0
+	k8s.io/client-go v1.5.2
 )

-go 1.15
+require (
+	github.com/alecthomas/units v0.0.0-20231202071711-9a357b53e9c9 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.11.1 // indirect
+	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
+	github.com/go-logfmt/logfmt v0.6.0 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-openapi/jsonpointer v0.20.2 // indirect
+	github.com/go-openapi/jsonreference v0.20.4 // indirect
+	github.com/go-openapi/swag v0.22.7 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/gnostic-models v0.6.9-0.20230804172637-c7be7c783f49 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.5.0 // indirect
+	github.com/imdario/mergo v0.3.16 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/jpillora/backoff v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/xhit/go-str2duration/v2 v2.1.0 // indirect
+	golang.org/x/net v0.19.0 // indirect
+	golang.org/x/oauth2 v0.15.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/term v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/protobuf v1.32.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	k8s.io/klog/v2 v2.110.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20240105020646-a37d4de58910 // indirect
+	k8s.io/utils v0.0.0-20240102154912-e7106e64919e // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
+)
+
+replace (
+	k8s.io/api => k8s.io/api v0.29.0
+	k8s.io/apimachinery => k8s.io/apimachinery v0.29.0
+	k8s.io/client-go => k8s.io/client-go v0.29.0
+)
+
+go 1.20
--- a/go.sum
+++ b/go.sum
@@ -1,443 +1,187 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
-github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
-github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
-github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2cI+DC1Mbh0TJxzA3RcLoMsFw+aXw7E=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
-github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
-github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
-github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
-github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
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--- a/prober/file.go
+++ b/prober/file.go
@@ -0,0 +1,37 @@
+package prober
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/bmatcuk/doublestar/v2"
+	"github.com/go-kit/log"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+)
+
+// ProbeFile collects certificate metrics from local files
+func ProbeFile(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error {
+	errCh := make(chan error, 1)
+
+	go func() {
+		files, err := doublestar.Glob(target)
+		if err != nil {
+			errCh <- err
+			return
+		}
+
+		if len(files) == 0 {
+			errCh <- fmt.Errorf("No files found")
+		} else {
+			errCh <- collectFileMetrics(logger, files, registry)
+		}
+	}()
+
+	select {
+	case <-ctx.Done():
+		return fmt.Errorf("context timeout, ran out of time")
+	case err := <-errCh:
+		return err
+	}
+}
--- a/prober/file_test.go
+++ b/prober/file_test.go
@@ -0,0 +1,200 @@
+package prober
+
+import (
+	"context"
+	"crypto/x509"
+	"encoding/pem"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/test"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+// TestProbeFile tests a file
+func TestProbeFile(t *testing.T) {
+	cert, certFile, err := createTestFile("", "tls*.crt")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer os.Remove(certFile)
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeFile(ctx, newTestLogger(), certFile, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkFileMetrics(cert, certFile, registry, t)
+}
+
+// TestProbeFileGlob tests matching a file with a glob
+func TestProbeFileGlob(t *testing.T) {
+	cert, certFile, err := createTestFile("", "tls*.crt")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer os.Remove(certFile)
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	glob := filepath.Dir(certFile) + "/*.crt"
+
+	if err := ProbeFile(ctx, newTestLogger(), glob, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkFileMetrics(cert, certFile, registry, t)
+}
+
+// TestProbeFileGlobDoubleStar tests matching a file with a ** glob
+func TestProbeFileGlobDoubleStar(t *testing.T) {
+	tmpDir, err := ioutil.TempDir("", "testdir")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	cert, certFile, err := createTestFile(tmpDir, "tls*.crt")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer os.Remove(certFile)
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	glob := filepath.Dir(filepath.Dir(certFile)) + "/**/*.crt"
+
+	if err := ProbeFile(ctx, newTestLogger(), glob, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkFileMetrics(cert, certFile, registry, t)
+}
+
+// TestProbeFileGlobDoubleStarMultiple tests matching multiple files with a ** glob
+func TestProbeFileGlobDoubleStarMultiple(t *testing.T) {
+	tmpDir, err := ioutil.TempDir("", "testdir")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer os.RemoveAll(tmpDir)
+
+	tmpDir1, err := ioutil.TempDir(tmpDir, "testdir")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	cert1, certFile1, err := createTestFile(tmpDir1, "1*.crt")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+
+	tmpDir2, err := ioutil.TempDir(tmpDir, "testdir")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	cert2, certFile2, err := createTestFile(tmpDir2, "2*.crt")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	glob := tmpDir + "/**/*.crt"
+
+	if err := ProbeFile(ctx, newTestLogger(), glob, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkFileMetrics(cert1, certFile1, registry, t)
+	checkFileMetrics(cert2, certFile2, registry, t)
+}
+
+// Create a certificate and write it to a file
+func createTestFile(dir, filename string) (*x509.Certificate, string, error) {
+	certPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1))
+	block, _ := pem.Decode([]byte(certPEM))
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		return nil, "", err
+	}
+	tmpFile, err := ioutil.TempFile(dir, filename)
+	if err != nil {
+		return nil, tmpFile.Name(), err
+	}
+	if _, err := tmpFile.Write(certPEM); err != nil {
+		return nil, tmpFile.Name(), err
+	}
+	if err := tmpFile.Close(); err != nil {
+		return nil, tmpFile.Name(), err
+	}
+
+	return cert, tmpFile.Name(), nil
+}
+
+// Check metrics
+func checkFileMetrics(cert *x509.Certificate, certFile string, registry *prometheus.Registry, t *testing.T) {
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+	ips := ","
+	for _, ip := range cert.IPAddresses {
+		ips = ips + ip.String() + ","
+	}
+	expectedResults := []*registryResult{
+		&registryResult{
+			Name: "ssl_file_cert_not_after",
+			LabelValues: map[string]string{
+				"file":      certFile,
+				"serial_no": cert.SerialNumber.String(),
+				"issuer_cn": cert.Issuer.CommonName,
+				"cn":        cert.Subject.CommonName,
+				"dnsnames":  "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":       ips,
+				"emails":    "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":        "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotAfter.Unix()),
+		},
+		&registryResult{
+			Name: "ssl_file_cert_not_before",
+			LabelValues: map[string]string{
+				"file":      certFile,
+				"serial_no": cert.SerialNumber.String(),
+				"issuer_cn": cert.Issuer.CommonName,
+				"cn":        cert.Subject.CommonName,
+				"dnsnames":  "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":       ips,
+				"emails":    "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":        "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotBefore.Unix()),
+		},
+	}
+	checkRegistryResults(expectedResults, mfs, t)
+}
--- a/prober/http_file.go
+++ b/prober/http_file.go
@@ -0,0 +1,83 @@
+package prober
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+)
+
+// ProbeHTTPFile performs a http_file probe
+func ProbeHTTPFile(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error {
+	tlsConfig, err := config.NewTLSConfig(&module.TLSConfig)
+	if err != nil {
+		return err
+	}
+
+	targetURL, err := url.Parse(target)
+	if err != nil {
+		return err
+	}
+
+	// If server name isn't set, then use the target hostname
+	if tlsConfig.ServerName == "" {
+		tlsConfig.ServerName = targetURL.Hostname()
+	}
+
+	proxy := http.ProxyFromEnvironment
+	if module.HTTPS.ProxyURL.URL != nil {
+		proxy = http.ProxyURL(module.HTTPS.ProxyURL.URL)
+	}
+
+	client := &http.Client{
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		},
+		Transport: &http.Transport{
+			TLSClientConfig:   tlsConfig,
+			Proxy:             proxy,
+			DisableKeepAlives: true,
+		},
+	}
+
+	// Issue a GET request to the target
+	request, err := http.NewRequest(http.MethodGet, targetURL.String(), nil)
+	if err != nil {
+		return err
+	}
+	request = request.WithContext(ctx)
+	resp, err := client.Do(request)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_, err := io.Copy(ioutil.Discard, resp.Body)
+		if err != nil {
+			level.Error(logger).Log("msg", err)
+		}
+		resp.Body.Close()
+	}()
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+
+	certs, err := decodeCertificates(data)
+	if err != nil {
+		return err
+	}
+
+	if len(certs) == 0 {
+		return fmt.Errorf("no certificates in response body")
+	}
+
+	return collectCertificateMetrics(certs, registry)
+}
--- a/prober/http_file_test.go
+++ b/prober/http_file_test.go
@@ -0,0 +1,81 @@
+package prober
+
+import (
+	"context"
+	"crypto/x509"
+	"encoding/pem"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/test"
+)
+
+func TestProbeHTTPFile(t *testing.T) {
+	certPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1))
+	block, _ := pem.Decode([]byte(certPEM))
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatalf("parsing cert: %s", err)
+	}
+
+	server := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write(certPEM)
+	}))
+
+	server.Start()
+	defer server.Close()
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPFile(ctx, newTestLogger(), server.URL+"/file", config.Module{}, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkCertificateMetrics(cert, registry, t)
+}
+
+func TestProbeHTTPFile_HTTPS(t *testing.T) {
+	server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer()
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	block, _ := pem.Decode([]byte(certPEM))
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatalf("parsing cert: %s", err)
+	}
+
+	server.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write(certPEM)
+	})
+
+	server.StartTLS()
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile:             caFile,
+			InsecureSkipVerify: false,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPFile(ctx, newTestLogger(), server.URL+"/file", module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkCertificateMetrics(cert, registry, t)
+}
--- a/prober/https.go
+++ b/prober/https.go
@@ -1,25 +1,29 @@
 package prober

 import (
-	"crypto/tls"
+	"context"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"net/http"
 	"net/url"
 	"strings"
-	"time"

-	"github.com/prometheus/common/log"
-	"github.com/ribbybibby/ssl_exporter/config"
-
-	pconfig "github.com/prometheus/common/config"
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
 )

 // ProbeHTTPS performs a https probe
-func ProbeHTTPS(target string, module config.Module, timeout time.Duration) (*tls.ConnectionState, error) {
+func ProbeHTTPS(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error {
+	tlsConfig, err := newTLSConfig("", registry, &module.TLSConfig)
+	if err != nil {
+		return err
+	}
+
 	if strings.HasPrefix(target, "http://") {
-		return nil, fmt.Errorf("Target is using http scheme: %s", target)
+		return fmt.Errorf("Target is using http scheme: %s", target)
 	}

 	if !strings.HasPrefix(target, "https://") {
@@ -28,12 +32,7 @@ func ProbeHTTPS(target string, module config.Module, timeout time.Duration) (*tl

 	targetURL, err := url.Parse(target)
 	if err != nil {
-		return nil, err
-	}
-
-	tlsConfig, err := pconfig.NewTLSConfig(&module.TLSConfig)
-	if err != nil {
-		return nil, err
+		return err
 	}

 	proxy := http.ProxyFromEnvironment
@@ -50,26 +49,30 @@ func ProbeHTTPS(target string, module config.Module, timeout time.Duration) (*tl
 			Proxy:             proxy,
 			DisableKeepAlives: true,
 		},
-		Timeout: timeout,
 	}

 	// Issue a GET request to the target
-	resp, err := client.Get(targetURL.String())
+	request, err := http.NewRequest(http.MethodGet, targetURL.String(), nil)
 	if err != nil {
-		return nil, err
+		return err
+	}
+	request = request.WithContext(ctx)
+	resp, err := client.Do(request)
+	if err != nil {
+		return err
 	}
 	defer func() {
 		_, err := io.Copy(ioutil.Discard, resp.Body)
 		if err != nil {
-			log.Errorln(err)
+			level.Error(logger).Log("msg", err)
 		}
 		resp.Body.Close()
 	}()

 	// Check if the response from the target is encrypted
 	if resp.TLS == nil {
-		return nil, fmt.Errorf("The response from %s is unencrypted", targetURL.String())
+		return fmt.Errorf("The response from %s is unencrypted", targetURL.String())
 	}

-	return resp.TLS, nil
+	return nil
 }
--- a/prober/https_test.go
+++ b/prober/https_test.go
@@ -1,9 +1,14 @@
 package prober

 import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"crypto/rsa"
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
+	"math/big"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
@@ -11,14 +16,15 @@ import (
 	"testing"
 	"time"

-	pconfig "github.com/prometheus/common/config"
-	"github.com/ribbybibby/ssl_exporter/config"
-	"github.com/ribbybibby/ssl_exporter/test"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/test"
+	"golang.org/x/crypto/ocsp"
 )

 // TestProbeHTTPS tests the typical case
 func TestProbeHTTPS(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupHTTPSServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -28,18 +34,60 @@ func TestProbeHTTPS(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	state, err := ProbeHTTPS(server.URL, module, 5*time.Second)
-	if err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
-	if state == nil {
-		t.Fatalf("expected state but got nil")
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeHTTPSTimeout tests that the https probe respects the timeout in the
+// context
+func TestProbeHTTPSTimeout(t *testing.T) {
+	server, _, _, caFile, teardown, err := test.SetupHTTPSServer()
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	server.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		time.Sleep(3 * time.Second)
+		fmt.Fprintln(w, "Hello world")
+	})
+
+	server.StartTLS()
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile: caFile,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err == nil {
+		t.Fatalf("Expected error but returned error was nil")
 	}
 }

@@ -56,7 +104,7 @@ func TestProbeHTTPSInvalidName(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
@@ -67,7 +115,12 @@ func TestProbeHTTPSInvalidName(t *testing.T) {
 		t.Fatalf(err.Error())
 	}

-	if _, err := ProbeHTTPS("https://localhost:"+u.Port(), module, 5*time.Second); err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), "https://localhost:"+u.Port(), module, registry); err == nil {
 		t.Fatalf("expected error, but err was nil")
 	}
 }
@@ -75,7 +128,7 @@ func TestProbeHTTPSInvalidName(t *testing.T) {
 // TestProbeHTTPSNoScheme tests that the probe is successful when the scheme is
 // omitted from the target. The scheme should be added by the prober.
 func TestProbeHTTPSNoScheme(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupHTTPSServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -85,7 +138,7 @@ func TestProbeHTTPSNoScheme(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
@@ -96,15 +149,28 @@ func TestProbeHTTPSNoScheme(t *testing.T) {
 		t.Fatalf(err.Error())
 	}

-	if _, err := ProbeHTTPS(u.Host, module, 5*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), u.Host, module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeHTTPSServername tests that the probe is successful when the
 // servername is provided in the TLS config
 func TestProbeHTTPSServerName(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupHTTPSServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -119,16 +185,29 @@ func TestProbeHTTPSServerName(t *testing.T) {
 	}

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 			ServerName:         u.Hostname(),
 		},
 	}

-	if _, err := ProbeHTTPS("https://localhost:"+u.Port(), module, 5*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), "https://localhost:"+u.Port(), module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeHTTPSHTTP tests that the prober fails when hitting a HTTP server
@@ -139,7 +218,12 @@ func TestProbeHTTPSHTTP(t *testing.T) {
 	server.Start()
 	defer server.Close()

-	if _, err := ProbeHTTPS(server.URL, config.Module{}, 5*time.Second); err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, config.Module{}, registry); err == nil {
 		t.Fatalf("expected error, but err was nil")
 	}
 }
@@ -178,7 +262,7 @@ func TestProbeHTTPSClientAuth(t *testing.T) {
 	defer os.Remove(keyFile)

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			CertFile:           certFile,
 			KeyFile:            keyFile,
@@ -186,13 +270,22 @@ func TestProbeHTTPSClientAuth(t *testing.T) {
 		},
 	}

-	state, err := ProbeHTTPS(server.URL, module, 5*time.Second)
-	if err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
-	if state == nil {
-		t.Fatalf("expected state but got nil")
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
 	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeHTTPSClientAuthWrongClientCert tests that the probe fails with a bad
@@ -233,7 +326,7 @@ func TestProbeHTTPSClientAuthWrongClientCert(t *testing.T) {
 	defer os.Remove(keyFile)

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			CertFile:           certFile,
 			KeyFile:            keyFile,
@@ -241,7 +334,12 @@ func TestProbeHTTPSClientAuthWrongClientCert(t *testing.T) {
 		},
 	}

-	if _, err := ProbeHTTPS(server.URL, module, 5*time.Second); err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err == nil {
 		t.Fatalf("expected error but err is nil")
 	}
 }
@@ -266,13 +364,18 @@ func TestProbeHTTPSExpired(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	if _, err := ProbeHTTPS(server.URL, module, 5*time.Second); err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err == nil {
 		t.Fatalf("expected error but err is nil")
 	}
 }
@@ -280,7 +383,7 @@ func TestProbeHTTPSExpired(t *testing.T) {
 // TestProbeHTTPSExpiredInsecure tests that the probe succeeds with an expired server cert
 // when skipping cert verification
 func TestProbeHTTPSExpiredInsecure(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupHTTPSServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -298,24 +401,33 @@ func TestProbeHTTPSExpiredInsecure(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: true,
 		},
 	}

-	state, err := ProbeHTTPS(server.URL, module, 5*time.Second)
-	if err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
-	if state == nil {
-		t.Fatalf("expected state but got nil")
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
 	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeHTTPSProxy tests the proxy_url field in the configuration
 func TestProbeHTTPSProxy(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupHTTPSServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -342,7 +454,7 @@ func TestProbeHTTPSProxy(t *testing.T) {
 	}

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
@@ -352,19 +464,155 @@ func TestProbeHTTPSProxy(t *testing.T) {
 		},
 	}

-	_, err = ProbeHTTPS(server.URL, module, 5*time.Second)
-	if err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err == nil {
 		t.Fatalf("expected error but err was nil")
 	}

 	// Test with the proxy url, this shouldn't return an error
 	module.HTTPS.ProxyURL = config.URL{URL: proxyURL}

-	state, err := ProbeHTTPS(server.URL, module, 5*time.Second)
-	if err != nil {
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
-	if state == nil {
-		t.Fatalf("expected state but got nil")
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
 	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeHTTPSOCSP tests a HTTPS probe with OCSP stapling
+func TestProbeHTTPSOCSP(t *testing.T) {
+	server, certPEM, keyPEM, caFile, teardown, err := test.SetupHTTPSServer()
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	key, err := newKey(keyPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := ocsp.CreateResponse(cert, cert, ocsp.Response{SerialNumber: big.NewInt(64), Status: 1}, key)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	server.TLS.Certificates[0].OCSPStaple = resp
+
+	server.StartTLS()
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile: caFile,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics(resp, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeHTTPSVerifiedChains tests the verified chain metrics returned by a
+// https probe
+func TestProbeHTTPSVerifiedChains(t *testing.T) {
+	rootPrivateKey, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+
+	rootCertExpiry := time.Now().AddDate(0, 0, 5)
+	rootCertTmpl := test.GenerateCertificateTemplate(rootCertExpiry)
+	rootCertTmpl.IsCA = true
+	rootCertTmpl.SerialNumber = big.NewInt(1)
+	rootCert, rootCertPem := test.GenerateSelfSignedCertificateWithPrivateKey(rootCertTmpl, rootPrivateKey)
+
+	olderRootCertExpiry := time.Now().AddDate(0, 0, 3)
+	olderRootCertTmpl := test.GenerateCertificateTemplate(olderRootCertExpiry)
+	olderRootCertTmpl.IsCA = true
+	olderRootCertTmpl.SerialNumber = big.NewInt(2)
+	olderRootCert, olderRootCertPem := test.GenerateSelfSignedCertificateWithPrivateKey(olderRootCertTmpl, rootPrivateKey)
+
+	oldestRootCertExpiry := time.Now().AddDate(0, 0, 1)
+	oldestRootCertTmpl := test.GenerateCertificateTemplate(oldestRootCertExpiry)
+	oldestRootCertTmpl.IsCA = true
+	oldestRootCertTmpl.SerialNumber = big.NewInt(3)
+	oldestRootCert, oldestRootCertPem := test.GenerateSelfSignedCertificateWithPrivateKey(oldestRootCertTmpl, rootPrivateKey)
+
+	serverCertExpiry := time.Now().AddDate(0, 0, 4)
+	serverCertTmpl := test.GenerateCertificateTemplate(serverCertExpiry)
+	serverCertTmpl.SerialNumber = big.NewInt(4)
+	serverCert, serverCertPem, serverKey := test.GenerateSignedCertificate(serverCertTmpl, olderRootCert, rootPrivateKey)
+
+	verifiedChains := [][]*x509.Certificate{
+		[]*x509.Certificate{
+			serverCert,
+			rootCert,
+		},
+		[]*x509.Certificate{
+			serverCert,
+			olderRootCert,
+		},
+		[]*x509.Certificate{
+			serverCert,
+			oldestRootCert,
+		},
+	}
+
+	caCertPem := bytes.Join([][]byte{oldestRootCertPem, olderRootCertPem, rootCertPem}, []byte(""))
+
+	server, caFile, teardown, err := test.SetupHTTPSServerWithCertAndKey(
+		caCertPem,
+		serverCertPem,
+		serverKey,
+	)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	server.StartTLS()
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile: caFile,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeHTTPS(ctx, newTestLogger(), server.URL, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkCertificateMetrics(serverCert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkVerifiedChainMetrics(verifiedChains, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }
--- a/prober/kubeconfig.go
+++ b/prober/kubeconfig.go
@@ -0,0 +1,92 @@
+package prober
+
+import (
+	"context"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/go-kit/log"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"gopkg.in/yaml.v3"
+)
+
+type KubeConfigCluster struct {
+	Name    string
+	Cluster KubeConfigClusterCert
+}
+
+type KubeConfigClusterCert struct {
+	CertificateAuthority     string `yaml:"certificate-authority"`
+	CertificateAuthorityData string `yaml:"certificate-authority-data"`
+}
+
+type KubeConfigUser struct {
+	Name string
+	User KubeConfigUserCert
+}
+
+type KubeConfigUserCert struct {
+	ClientCertificate     string `yaml:"client-certificate"`
+	ClientCertificateData string `yaml:"client-certificate-data"`
+}
+
+type KubeConfig struct {
+	Path     string
+	Clusters []KubeConfigCluster
+	Users    []KubeConfigUser
+}
+
+// ProbeKubeconfig collects certificate metrics from kubeconfig files
+func ProbeKubeconfig(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error {
+	if _, err := os.Stat(target); err != nil {
+		return fmt.Errorf("kubeconfig not found: %s", target)
+	}
+	k, err := ParseKubeConfig(target)
+	if err != nil {
+		return err
+	}
+	err = collectKubeconfigMetrics(logger, *k, registry)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func ParseKubeConfig(file string) (*KubeConfig, error) {
+	k := &KubeConfig{}
+
+	data, err := ioutil.ReadFile(file)
+	if err != nil {
+		return nil, err
+	}
+
+	err = yaml.Unmarshal([]byte(data), k)
+	if err != nil {
+		return nil, err
+	}
+	k.Path = file
+	clusters := []KubeConfigCluster{}
+	users := []KubeConfigUser{}
+	for _, c := range k.Clusters {
+		// Path is relative to kubeconfig path
+		if c.Cluster.CertificateAuthority != "" && !filepath.IsAbs(c.Cluster.CertificateAuthority) {
+			newPath := filepath.Join(filepath.Dir(k.Path), c.Cluster.CertificateAuthority)
+			c.Cluster.CertificateAuthority = newPath
+		}
+		clusters = append(clusters, c)
+	}
+	for _, u := range k.Users {
+		// Path is relative to kubeconfig path
+		if u.User.ClientCertificate != "" && !filepath.IsAbs(u.User.ClientCertificate) {
+			newPath := filepath.Join(filepath.Dir(k.Path), u.User.ClientCertificate)
+			u.User.ClientCertificate = newPath
+		}
+		users = append(users, u)
+	}
+	k.Clusters = clusters
+	k.Users = users
+	return k, nil
+}
--- a/prober/kubeconfig_test.go
+++ b/prober/kubeconfig_test.go
@@ -0,0 +1,195 @@
+package prober
+
+import (
+	"context"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/test"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"gopkg.in/yaml.v3"
+)
+
+// TestProbeFile tests a file
+func TestProbeKubeconfig(t *testing.T) {
+	cert, kubeconfig, err := createTestKubeconfig("", "kubeconfig")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer os.Remove(kubeconfig)
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeKubeconfig(ctx, newTestLogger(), kubeconfig, module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkKubeconfigMetrics(cert, kubeconfig, registry, t)
+}
+
+func TestParseKubeConfigRelative(t *testing.T) {
+	tmpFile, err := ioutil.TempFile("", "kubeconfig")
+	if err != nil {
+		t.Fatalf("Unable to create Tempfile: %s", err.Error())
+	}
+	defer os.Remove(tmpFile.Name())
+	file := []byte(`
+clusters:
+  - cluster:
+      certificate-authority: certs/example/ca.pem
+      server: https://master.example.com
+    name: example
+users:
+  - user:
+      client-certificate: test/ca.pem
+    name: example`)
+	if _, err := tmpFile.Write(file); err != nil {
+		t.Fatalf("Unable to write Tempfile: %s", err.Error())
+	}
+	expectedClusterPath := filepath.Join(filepath.Dir(tmpFile.Name()), "certs/example/ca.pem")
+	expectedUserPath := filepath.Join(filepath.Dir(tmpFile.Name()), "test/ca.pem")
+	k, err := ParseKubeConfig(tmpFile.Name())
+	if err != nil {
+		t.Fatalf("Error parsing kubeconfig: %s", err.Error())
+	}
+	if len(k.Clusters) != 1 {
+		t.Fatalf("Unexpected length for Clusters, got %d", len(k.Clusters))
+	}
+	if k.Clusters[0].Cluster.CertificateAuthority != expectedClusterPath {
+		t.Errorf("Unexpected CertificateAuthority value\nExpected: %s\nGot: %s", expectedClusterPath, k.Clusters[0].Cluster.CertificateAuthority)
+	}
+	if len(k.Users) != 1 {
+		t.Fatalf("Unexpected length for Users, got %d", len(k.Users))
+	}
+	if k.Users[0].User.ClientCertificate != expectedUserPath {
+		t.Errorf("Unexpected ClientCertificate value\nExpected: %s\nGot: %s", expectedUserPath, k.Users[0].User.ClientCertificate)
+	}
+}
+
+// Create a certificate and write it to a file
+func createTestKubeconfig(dir, filename string) (*x509.Certificate, string, error) {
+	certPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1))
+	clusterCert := KubeConfigClusterCert{CertificateAuthorityData: base64.StdEncoding.EncodeToString([]byte(certPEM))}
+	clusters := []KubeConfigCluster{KubeConfigCluster{Name: "kubernetes", Cluster: clusterCert}}
+	userCert := KubeConfigUserCert{ClientCertificateData: base64.StdEncoding.EncodeToString([]byte(certPEM))}
+	users := []KubeConfigUser{KubeConfigUser{Name: "kubernetes-admin", User: userCert}}
+	k := KubeConfig{
+		Clusters: clusters,
+		Users:    users,
+	}
+	block, _ := pem.Decode([]byte(certPEM))
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		return nil, "", err
+	}
+	tmpFile, err := ioutil.TempFile(dir, filename)
+	if err != nil {
+		return nil, tmpFile.Name(), err
+	}
+	k.Path = tmpFile.Name()
+	d, err := yaml.Marshal(&k)
+	if err != nil {
+		return nil, tmpFile.Name(), err
+	}
+	if _, err := tmpFile.Write(d); err != nil {
+		return nil, tmpFile.Name(), err
+	}
+	if err := tmpFile.Close(); err != nil {
+		return nil, tmpFile.Name(), err
+	}
+
+	return cert, tmpFile.Name(), nil
+}
+
+// Check metrics
+func checkKubeconfigMetrics(cert *x509.Certificate, kubeconfig string, registry *prometheus.Registry, t *testing.T) {
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+	ips := ","
+	for _, ip := range cert.IPAddresses {
+		ips = ips + ip.String() + ","
+	}
+	expectedResults := []*registryResult{
+		&registryResult{
+			Name: "ssl_kubeconfig_cert_not_after",
+			LabelValues: map[string]string{
+				"kubeconfig": kubeconfig,
+				"name":       "kubernetes",
+				"type":       "cluster",
+				"serial_no":  cert.SerialNumber.String(),
+				"issuer_cn":  cert.Issuer.CommonName,
+				"cn":         cert.Subject.CommonName,
+				"dnsnames":   "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":        ips,
+				"emails":     "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":         "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotAfter.Unix()),
+		},
+		&registryResult{
+			Name: "ssl_kubeconfig_cert_not_before",
+			LabelValues: map[string]string{
+				"kubeconfig": kubeconfig,
+				"name":       "kubernetes",
+				"type":       "cluster",
+				"serial_no":  cert.SerialNumber.String(),
+				"issuer_cn":  cert.Issuer.CommonName,
+				"cn":         cert.Subject.CommonName,
+				"dnsnames":   "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":        ips,
+				"emails":     "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":         "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotBefore.Unix()),
+		},
+		&registryResult{
+			Name: "ssl_kubeconfig_cert_not_after",
+			LabelValues: map[string]string{
+				"kubeconfig": kubeconfig,
+				"name":       "kubernetes-admin",
+				"type":       "user",
+				"serial_no":  cert.SerialNumber.String(),
+				"issuer_cn":  cert.Issuer.CommonName,
+				"cn":         cert.Subject.CommonName,
+				"dnsnames":   "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":        ips,
+				"emails":     "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":         "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotAfter.Unix()),
+		},
+		&registryResult{
+			Name: "ssl_kubeconfig_cert_not_before",
+			LabelValues: map[string]string{
+				"kubeconfig": kubeconfig,
+				"name":       "kubernetes-admin",
+				"type":       "user",
+				"serial_no":  cert.SerialNumber.String(),
+				"issuer_cn":  cert.Issuer.CommonName,
+				"cn":         cert.Subject.CommonName,
+				"dnsnames":   "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":        ips,
+				"emails":     "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":         "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotBefore.Unix()),
+		},
+	}
+	checkRegistryResults(expectedResults, mfs, t)
+}
--- a/prober/kubernetes.go
+++ b/prober/kubernetes.go
@@ -0,0 +1,86 @@
+package prober
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/bmatcuk/doublestar/v2"
+	"github.com/go-kit/log"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/tools/clientcmd"
+
+	// Support oidc in kube config files
+	_ "k8s.io/client-go/plugin/pkg/client/auth/oidc"
+)
+
+var (
+	// ErrKubeBadTarget is returned when the target doesn't match the
+	// expected form for the kubernetes prober
+	ErrKubeBadTarget = fmt.Errorf("Target secret must be provided in the form: <namespace>/<name>")
+)
+
+// ProbeKubernetes collects certificate metrics from kubernetes.io/tls Secrets
+func ProbeKubernetes(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error {
+	client, err := newKubeClient(module.Kubernetes.Kubeconfig)
+	if err != nil {
+		return err
+	}
+
+	return probeKubernetes(ctx, target, module, registry, client)
+}
+
+func probeKubernetes(ctx context.Context, target string, module config.Module, registry *prometheus.Registry, client kubernetes.Interface) error {
+	parts := strings.Split(target, "/")
+	if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
+		return ErrKubeBadTarget
+	}
+
+	ns := parts[0]
+	name := parts[1]
+
+	var tlsSecrets []v1.Secret
+	secrets, err := client.CoreV1().Secrets("").List(ctx, metav1.ListOptions{FieldSelector: "type=kubernetes.io/tls"})
+	if err != nil {
+		return err
+	}
+	for _, secret := range secrets.Items {
+		nMatch, err := doublestar.Match(ns, secret.Namespace)
+		if err != nil {
+			return err
+		}
+		sMatch, err := doublestar.Match(name, secret.Name)
+		if err != nil {
+			return err
+		}
+		if nMatch && sMatch {
+			tlsSecrets = append(tlsSecrets, secret)
+		}
+	}
+
+	return collectKubernetesSecretMetrics(tlsSecrets, registry)
+}
+
+// newKubeClient returns a Kubernetes client (clientset) from the supplied
+// kubeconfig path, the KUBECONFIG environment variable, the default config file
+// location ($HOME/.kube/config) or from the in-cluster service account environment.
+func newKubeClient(path string) (*kubernetes.Clientset, error) {
+	loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
+	if path != "" {
+		loadingRules.ExplicitPath = path
+	}
+	kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
+		loadingRules,
+		&clientcmd.ConfigOverrides{},
+	)
+	config, err := kubeConfig.ClientConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	return kubernetes.NewForConfig(config)
+}
--- a/prober/kubernetes_test.go
+++ b/prober/kubernetes_test.go
@@ -0,0 +1,190 @@
+package prober
+
+import (
+	"context"
+	"crypto/x509"
+	"encoding/pem"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/test"
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes/fake"
+)
+
+func TestKubernetesProbe(t *testing.T) {
+	certPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1))
+	block, _ := pem.Decode([]byte(certPEM))
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	caPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 10))
+	block, _ = pem.Decode([]byte(caPEM))
+	caCert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	fakeKubeClient := fake.NewSimpleClientset(&v1.Secret{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "foo",
+			Namespace: "bar",
+		},
+		Data: map[string][]byte{
+			"tls.crt": certPEM,
+			"ca.crt":  caPEM,
+		},
+		Type: "kubernetes.io/tls",
+	})
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := probeKubernetes(ctx, "bar/foo", module, registry, fakeKubeClient); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkKubernetesMetrics(cert, "bar", "foo", "tls.crt", registry, t)
+	checkKubernetesMetrics(caCert, "bar", "foo", "ca.crt", registry, t)
+}
+
+func TestKubernetesProbeGlob(t *testing.T) {
+	certPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1))
+	block, _ := pem.Decode([]byte(certPEM))
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	caPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 10))
+	block, _ = pem.Decode([]byte(caPEM))
+	caCert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	certPEM2, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1))
+	block, _ = pem.Decode([]byte(certPEM2))
+	cert2, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	caPEM2, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 10))
+	block, _ = pem.Decode([]byte(caPEM2))
+	caCert2, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	fakeKubeClient := fake.NewSimpleClientset(&v1.Secret{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "foo",
+			Namespace: "bar",
+		},
+		Data: map[string][]byte{
+			"tls.crt": certPEM,
+			"ca.crt":  caPEM,
+		},
+		Type: "kubernetes.io/tls",
+	},
+		&v1.Secret{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      "fooz",
+				Namespace: "baz",
+			},
+			Data: map[string][]byte{
+				"tls.crt": certPEM2,
+				"ca.crt":  caPEM2,
+			},
+			Type: "kubernetes.io/tls",
+		})
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := probeKubernetes(ctx, "ba*/*", module, registry, fakeKubeClient); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkKubernetesMetrics(cert, "bar", "foo", "tls.crt", registry, t)
+	checkKubernetesMetrics(caCert, "bar", "foo", "ca.crt", registry, t)
+	checkKubernetesMetrics(cert2, "baz", "fooz", "tls.crt", registry, t)
+	checkKubernetesMetrics(caCert2, "baz", "fooz", "ca.crt", registry, t)
+}
+
+func TestKubernetesProbeBadTarget(t *testing.T) {
+	fakeKubeClient := fake.NewSimpleClientset()
+
+	module := config.Module{}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := probeKubernetes(ctx, "bar/foo/bar", module, registry, fakeKubeClient); err != ErrKubeBadTarget {
+		t.Fatalf("Expected error: %v, but got %v", ErrKubeBadTarget, err)
+	}
+}
+
+func checkKubernetesMetrics(cert *x509.Certificate, namespace, name, key string, registry *prometheus.Registry, t *testing.T) {
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ips := ","
+	for _, ip := range cert.IPAddresses {
+		ips = ips + ip.String() + ","
+	}
+	expectedResults := []*registryResult{
+		&registryResult{
+			Name: "ssl_kubernetes_cert_not_after",
+			LabelValues: map[string]string{
+				"namespace": namespace,
+				"secret":    name,
+				"key":       key,
+				"serial_no": cert.SerialNumber.String(),
+				"issuer_cn": cert.Issuer.CommonName,
+				"cn":        cert.Subject.CommonName,
+				"dnsnames":  "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":       ips,
+				"emails":    "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":        "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotAfter.Unix()),
+		},
+		&registryResult{
+			Name: "ssl_kubernetes_cert_not_before",
+			LabelValues: map[string]string{
+				"namespace": namespace,
+				"secret":    name,
+				"key":       key,
+				"serial_no": cert.SerialNumber.String(),
+				"issuer_cn": cert.Issuer.CommonName,
+				"cn":        cert.Subject.CommonName,
+				"dnsnames":  "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":       ips,
+				"emails":    "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":        "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			},
+			Value: float64(cert.NotBefore.Unix()),
+		},
+	}
+	checkRegistryResults(expectedResults, mfs, t)
+}
--- a/prober/metrics.go
+++ b/prober/metrics.go
@@ -0,0 +1,482 @@
+package prober
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/base64"
+	"fmt"
+	"io/ioutil"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
+	"github.com/prometheus/client_golang/prometheus"
+	"golang.org/x/crypto/ocsp"
+	v1 "k8s.io/api/core/v1"
+)
+
+const (
+	namespace = "ssl"
+)
+
+func collectConnectionStateMetrics(state tls.ConnectionState, registry *prometheus.Registry) error {
+	if err := collectTLSVersionMetrics(state.Version, registry); err != nil {
+		return err
+	}
+
+	if err := collectCertificateMetrics(state.PeerCertificates, registry); err != nil {
+		return err
+	}
+
+	if err := collectVerifiedChainMetrics(state.VerifiedChains, registry); err != nil {
+		return err
+	}
+
+	return collectOCSPMetrics(state.OCSPResponse, registry)
+}
+
+func collectTLSVersionMetrics(version uint16, registry *prometheus.Registry) error {
+	var (
+		tlsVersion = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "tls_version_info"),
+				Help: "The TLS version used",
+			},
+			[]string{"version"},
+		)
+	)
+	registry.MustRegister(tlsVersion)
+
+	var v string
+	switch version {
+	case tls.VersionTLS10:
+		v = "TLS 1.0"
+	case tls.VersionTLS11:
+		v = "TLS 1.1"
+	case tls.VersionTLS12:
+		v = "TLS 1.2"
+	case tls.VersionTLS13:
+		v = "TLS 1.3"
+	default:
+		v = "unknown"
+	}
+
+	tlsVersion.WithLabelValues(v).Set(1)
+
+	return nil
+}
+
+func collectCertificateMetrics(certs []*x509.Certificate, registry *prometheus.Registry) error {
+	var (
+		notAfter = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "cert_not_after"),
+				Help: "NotAfter expressed as a Unix Epoch Time",
+			},
+			[]string{"serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+		notBefore = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "cert_not_before"),
+				Help: "NotBefore expressed as a Unix Epoch Time",
+			},
+			[]string{"serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+	)
+	registry.MustRegister(notAfter, notBefore)
+
+	certs = uniq(certs)
+
+	if len(certs) == 0 {
+		return fmt.Errorf("No certificates found")
+	}
+
+	for _, cert := range certs {
+		labels := labelValues(cert)
+
+		if !cert.NotAfter.IsZero() {
+			notAfter.WithLabelValues(labels...).Set(float64(cert.NotAfter.Unix()))
+		}
+
+		if !cert.NotBefore.IsZero() {
+			notBefore.WithLabelValues(labels...).Set(float64(cert.NotBefore.Unix()))
+		}
+	}
+
+	return nil
+}
+
+func collectVerifiedChainMetrics(verifiedChains [][]*x509.Certificate, registry *prometheus.Registry) error {
+	var (
+		verifiedNotAfter = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "verified_cert_not_after"),
+				Help: "NotAfter expressed as a Unix Epoch Time",
+			},
+			[]string{"chain_no", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+		verifiedNotBefore = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "verified_cert_not_before"),
+				Help: "NotBefore expressed as a Unix Epoch Time",
+			},
+			[]string{"chain_no", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+	)
+	registry.MustRegister(verifiedNotAfter, verifiedNotBefore)
+
+	sort.Slice(verifiedChains, func(i, j int) bool {
+		iExpiry := time.Time{}
+		for _, cert := range verifiedChains[i] {
+			if (iExpiry.IsZero() || cert.NotAfter.Before(iExpiry)) && !cert.NotAfter.IsZero() {
+				iExpiry = cert.NotAfter
+			}
+		}
+		jExpiry := time.Time{}
+		for _, cert := range verifiedChains[j] {
+			if (jExpiry.IsZero() || cert.NotAfter.Before(jExpiry)) && !cert.NotAfter.IsZero() {
+				jExpiry = cert.NotAfter
+			}
+		}
+
+		return iExpiry.After(jExpiry)
+	})
+
+	for i, chain := range verifiedChains {
+		chain = uniq(chain)
+		for _, cert := range chain {
+			chainNo := strconv.Itoa(i)
+			labels := append([]string{chainNo}, labelValues(cert)...)
+
+			if !cert.NotAfter.IsZero() {
+				verifiedNotAfter.WithLabelValues(labels...).Set(float64(cert.NotAfter.Unix()))
+			}
+
+			if !cert.NotBefore.IsZero() {
+				verifiedNotBefore.WithLabelValues(labels...).Set(float64(cert.NotBefore.Unix()))
+			}
+		}
+	}
+
+	return nil
+}
+
+func collectOCSPMetrics(ocspResponse []byte, registry *prometheus.Registry) error {
+	var (
+		ocspStapled = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "ocsp_response_stapled"),
+				Help: "If the connection state contains a stapled OCSP response",
+			},
+		)
+		ocspStatus = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "ocsp_response_status"),
+				Help: "The status in the OCSP response 0=Good 1=Revoked 2=Unknown",
+			},
+		)
+		ocspProducedAt = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "ocsp_response_produced_at"),
+				Help: "The producedAt value in the OCSP response, expressed as a Unix Epoch Time",
+			},
+		)
+		ocspThisUpdate = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "ocsp_response_this_update"),
+				Help: "The thisUpdate value in the OCSP response, expressed as a Unix Epoch Time",
+			},
+		)
+		ocspNextUpdate = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "ocsp_response_next_update"),
+				Help: "The nextUpdate value in the OCSP response, expressed as a Unix Epoch Time",
+			},
+		)
+		ocspRevokedAt = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "ocsp_response_revoked_at"),
+				Help: "The revocationTime value in the OCSP response, expressed as a Unix Epoch Time",
+			},
+		)
+	)
+	registry.MustRegister(
+		ocspStapled,
+		ocspStatus,
+		ocspProducedAt,
+		ocspThisUpdate,
+		ocspNextUpdate,
+		ocspRevokedAt,
+	)
+
+	if len(ocspResponse) == 0 {
+		return nil
+	}
+
+	resp, err := ocsp.ParseResponse(ocspResponse, nil)
+	if err != nil {
+		return err
+	}
+
+	ocspStapled.Set(1)
+	ocspStatus.Set(float64(resp.Status))
+	ocspProducedAt.Set(float64(resp.ProducedAt.Unix()))
+	ocspThisUpdate.Set(float64(resp.ThisUpdate.Unix()))
+	ocspNextUpdate.Set(float64(resp.NextUpdate.Unix()))
+	ocspRevokedAt.Set(float64(resp.RevokedAt.Unix()))
+
+	return nil
+}
+
+func collectFileMetrics(logger log.Logger, files []string, registry *prometheus.Registry) error {
+	var (
+		totalCerts   []*x509.Certificate
+		fileNotAfter = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "file_cert_not_after"),
+				Help: "NotAfter expressed as a Unix Epoch Time for a certificate found in a file",
+			},
+			[]string{"file", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+		fileNotBefore = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "file_cert_not_before"),
+				Help: "NotBefore expressed as a Unix Epoch Time for a certificate found in a file",
+			},
+			[]string{"file", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+	)
+	registry.MustRegister(fileNotAfter, fileNotBefore)
+
+	for _, f := range files {
+		data, err := ioutil.ReadFile(f)
+		if err != nil {
+			level.Debug(logger).Log("msg", fmt.Sprintf("Error reading file %s: %s", f, err))
+			continue
+		}
+		certs, err := decodeCertificates(data)
+		if err != nil {
+			return err
+		}
+		totalCerts = append(totalCerts, certs...)
+		for _, cert := range certs {
+			labels := append([]string{f}, labelValues(cert)...)
+
+			if !cert.NotAfter.IsZero() {
+				fileNotAfter.WithLabelValues(labels...).Set(float64(cert.NotAfter.Unix()))
+			}
+
+			if !cert.NotBefore.IsZero() {
+				fileNotBefore.WithLabelValues(labels...).Set(float64(cert.NotBefore.Unix()))
+			}
+		}
+	}
+
+	if len(totalCerts) == 0 {
+		return fmt.Errorf("No certificates found")
+	}
+
+	return nil
+}
+
+func collectKubernetesSecretMetrics(secrets []v1.Secret, registry *prometheus.Registry) error {
+	var (
+		totalCerts         []*x509.Certificate
+		kubernetesNotAfter = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "kubernetes_cert_not_after"),
+				Help: "NotAfter expressed as a Unix Epoch Time for a certificate found in a kubernetes secret",
+			},
+			[]string{"namespace", "secret", "key", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+		kubernetesNotBefore = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "kubernetes_cert_not_before"),
+				Help: "NotBefore expressed as a Unix Epoch Time for a certificate found in a kubernetes secret",
+			},
+			[]string{"namespace", "secret", "key", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+	)
+	registry.MustRegister(kubernetesNotAfter, kubernetesNotBefore)
+
+	for _, secret := range secrets {
+		for _, key := range []string{"tls.crt", "ca.crt"} {
+			data := secret.Data[key]
+			if len(data) == 0 {
+				continue
+			}
+			certs, err := decodeCertificates(data)
+			if err != nil {
+				return err
+			}
+			totalCerts = append(totalCerts, certs...)
+			for _, cert := range certs {
+				labels := append([]string{secret.Namespace, secret.Name, key}, labelValues(cert)...)
+
+				if !cert.NotAfter.IsZero() {
+					kubernetesNotAfter.WithLabelValues(labels...).Set(float64(cert.NotAfter.Unix()))
+				}
+
+				if !cert.NotBefore.IsZero() {
+					kubernetesNotBefore.WithLabelValues(labels...).Set(float64(cert.NotBefore.Unix()))
+				}
+			}
+		}
+	}
+
+	if len(totalCerts) == 0 {
+		return fmt.Errorf("No certificates found")
+	}
+
+	return nil
+}
+
+func collectKubeconfigMetrics(logger log.Logger, kubeconfig KubeConfig, registry *prometheus.Registry) error {
+	var (
+		totalCerts         []*x509.Certificate
+		kubeconfigNotAfter = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "kubeconfig", "cert_not_after"),
+				Help: "NotAfter expressed as a Unix Epoch Time for a certificate found in a kubeconfig",
+			},
+			[]string{"kubeconfig", "name", "type", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+		kubeconfigNotBefore = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "kubeconfig", "cert_not_before"),
+				Help: "NotBefore expressed as a Unix Epoch Time for a certificate found in a kubeconfig",
+			},
+			[]string{"kubeconfig", "name", "type", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"},
+		)
+	)
+	registry.MustRegister(kubeconfigNotAfter, kubeconfigNotBefore)
+
+	for _, c := range kubeconfig.Clusters {
+		var data []byte
+		var err error
+		if c.Cluster.CertificateAuthorityData != "" {
+			data, err = base64.StdEncoding.DecodeString(c.Cluster.CertificateAuthorityData)
+			if err != nil {
+				return err
+			}
+		} else if c.Cluster.CertificateAuthority != "" {
+			data, err = ioutil.ReadFile(c.Cluster.CertificateAuthority)
+			if err != nil {
+				level.Debug(logger).Log("msg", fmt.Sprintf("Error reading file %s: %s", c.Cluster.CertificateAuthority, err))
+				return err
+			}
+		}
+		if data == nil {
+			continue
+		}
+		certs, err := decodeCertificates(data)
+		if err != nil {
+			return err
+		}
+		totalCerts = append(totalCerts, certs...)
+		for _, cert := range certs {
+			labels := append([]string{kubeconfig.Path, c.Name, "cluster"}, labelValues(cert)...)
+
+			if !cert.NotAfter.IsZero() {
+				kubeconfigNotAfter.WithLabelValues(labels...).Set(float64(cert.NotAfter.Unix()))
+			}
+
+			if !cert.NotBefore.IsZero() {
+				kubeconfigNotBefore.WithLabelValues(labels...).Set(float64(cert.NotBefore.Unix()))
+			}
+		}
+	}
+
+	for _, u := range kubeconfig.Users {
+		var data []byte
+		var err error
+		if u.User.ClientCertificateData != "" {
+			data, err = base64.StdEncoding.DecodeString(u.User.ClientCertificateData)
+			if err != nil {
+				return err
+			}
+		} else if u.User.ClientCertificate != "" {
+			data, err = ioutil.ReadFile(u.User.ClientCertificate)
+			if err != nil {
+				level.Debug(logger).Log("msg", fmt.Sprintf("Error reading file %s: %s", u.User.ClientCertificate, err))
+				return err
+			}
+		}
+		if data == nil {
+			continue
+		}
+		certs, err := decodeCertificates(data)
+		if err != nil {
+			return err
+		}
+		totalCerts = append(totalCerts, certs...)
+		for _, cert := range certs {
+			labels := append([]string{kubeconfig.Path, u.Name, "user"}, labelValues(cert)...)
+
+			if !cert.NotAfter.IsZero() {
+				kubeconfigNotAfter.WithLabelValues(labels...).Set(float64(cert.NotAfter.Unix()))
+			}
+
+			if !cert.NotBefore.IsZero() {
+				kubeconfigNotBefore.WithLabelValues(labels...).Set(float64(cert.NotBefore.Unix()))
+			}
+		}
+	}
+
+	if len(totalCerts) == 0 {
+		return fmt.Errorf("No certificates found")
+	}
+
+	return nil
+}
+
+func labelValues(cert *x509.Certificate) []string {
+	return []string{
+		cert.SerialNumber.String(),
+		cert.Issuer.CommonName,
+		cert.Subject.CommonName,
+		dnsNames(cert),
+		ipAddresses(cert),
+		emailAddresses(cert),
+		organizationalUnits(cert),
+	}
+}
+
+func dnsNames(cert *x509.Certificate) string {
+	if len(cert.DNSNames) > 0 {
+		return "," + strings.Join(cert.DNSNames, ",") + ","
+	}
+
+	return ""
+}
+
+func emailAddresses(cert *x509.Certificate) string {
+	if len(cert.EmailAddresses) > 0 {
+		return "," + strings.Join(cert.EmailAddresses, ",") + ","
+	}
+
+	return ""
+}
+
+func ipAddresses(cert *x509.Certificate) string {
+	if len(cert.IPAddresses) > 0 {
+		ips := ","
+		for _, ip := range cert.IPAddresses {
+			ips = ips + ip.String() + ","
+		}
+		return ips
+	}
+
+	return ""
+}
+
+func organizationalUnits(cert *x509.Certificate) string {
+	if len(cert.Subject.OrganizationalUnit) > 0 {
+		return "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ","
+	}
+
+	return ""
+}
--- a/prober/metrics_test.go
+++ b/prober/metrics_test.go
@@ -0,0 +1,223 @@
+package prober
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/prometheus/client_golang/prometheus"
+	dto "github.com/prometheus/client_model/go"
+	"golang.org/x/crypto/ocsp"
+)
+
+type registryResult struct {
+	Name        string
+	LabelValues map[string]string
+	Value       float64
+}
+
+func (rr *registryResult) String() string {
+	var labels []string
+	for k, v := range rr.LabelValues {
+		labels = append(labels, k+"=\""+v+"\"")
+	}
+	m := rr.Name
+	if len(labels) > 0 {
+		m = fmt.Sprintf("%s{%s}", m, strings.Join(labels, ","))
+	}
+	return fmt.Sprintf("%s %f", m, rr.Value)
+}
+
+func checkRegistryResults(expectedResults []*registryResult, mfs []*dto.MetricFamily, t *testing.T) {
+	for _, expRes := range expectedResults {
+		checkRegistryResult(expRes, mfs, t)
+	}
+}
+
+func checkRegistryResult(expRes *registryResult, mfs []*dto.MetricFamily, t *testing.T) {
+	var results []*registryResult
+	for _, mf := range mfs {
+		for _, metric := range mf.Metric {
+			result := &registryResult{
+				Name:  mf.GetName(),
+				Value: metric.GetGauge().GetValue(),
+			}
+			if len(metric.GetLabel()) > 0 {
+				labelValues := make(map[string]string)
+				for _, l := range metric.GetLabel() {
+					labelValues[l.GetName()] = l.GetValue()
+				}
+				result.LabelValues = labelValues
+			}
+			results = append(results, result)
+		}
+	}
+	var ok bool
+	var resStr string
+	for _, res := range results {
+		resStr = resStr + "\n" + res.String()
+		if reflect.DeepEqual(res, expRes) {
+			ok = true
+		}
+	}
+	if !ok {
+		t.Fatalf("Expected %s, got: %s", expRes.String(), resStr)
+	}
+}
+
+func checkCertificateMetrics(cert *x509.Certificate, registry *prometheus.Registry, t *testing.T) {
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+	ips := ","
+	for _, ip := range cert.IPAddresses {
+		ips = ips + ip.String() + ","
+	}
+	expectedLabels := map[string]string{
+		"serial_no": cert.SerialNumber.String(),
+		"issuer_cn": cert.Issuer.CommonName,
+		"cn":        cert.Subject.CommonName,
+		"dnsnames":  "," + strings.Join(cert.DNSNames, ",") + ",",
+		"ips":       ips,
+		"emails":    "," + strings.Join(cert.EmailAddresses, ",") + ",",
+		"ou":        "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+	}
+	expectedResults := []*registryResult{
+		&registryResult{
+			Name:        "ssl_cert_not_after",
+			LabelValues: expectedLabels,
+			Value:       float64(cert.NotAfter.Unix()),
+		},
+		&registryResult{
+			Name:        "ssl_cert_not_before",
+			LabelValues: expectedLabels,
+			Value:       float64(cert.NotBefore.Unix()),
+		},
+	}
+	checkRegistryResults(expectedResults, mfs, t)
+}
+
+func checkVerifiedChainMetrics(verifiedChains [][]*x509.Certificate, registry *prometheus.Registry, t *testing.T) {
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+	for i, chain := range verifiedChains {
+		for _, cert := range chain {
+			ips := ","
+			for _, ip := range cert.IPAddresses {
+				ips = ips + ip.String() + ","
+			}
+			expectedLabels := map[string]string{
+				"chain_no":  strconv.Itoa(i),
+				"serial_no": cert.SerialNumber.String(),
+				"issuer_cn": cert.Issuer.CommonName,
+				"cn":        cert.Subject.CommonName,
+				"dnsnames":  "," + strings.Join(cert.DNSNames, ",") + ",",
+				"ips":       ips,
+				"emails":    "," + strings.Join(cert.EmailAddresses, ",") + ",",
+				"ou":        "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ",",
+			}
+			expectedResults := []*registryResult{
+				&registryResult{
+					Name:        "ssl_verified_cert_not_after",
+					LabelValues: expectedLabels,
+					Value:       float64(cert.NotAfter.Unix()),
+				},
+				&registryResult{
+					Name:        "ssl_verified_cert_not_before",
+					LabelValues: expectedLabels,
+					Value:       float64(cert.NotBefore.Unix()),
+				},
+			}
+			checkRegistryResults(expectedResults, mfs, t)
+		}
+	}
+}
+
+func checkOCSPMetrics(resp []byte, registry *prometheus.Registry, t *testing.T) {
+	var (
+		stapled    float64
+		status     float64
+		nextUpdate float64
+		thisUpdate float64
+		revokedAt  float64
+		producedAt float64
+	)
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(resp) > 0 {
+		parsedResponse, err := ocsp.ParseResponse(resp, nil)
+		if err != nil {
+			t.Fatal(err)
+		}
+		stapled = 1
+		status = float64(parsedResponse.Status)
+		nextUpdate = float64(parsedResponse.NextUpdate.Unix())
+		thisUpdate = float64(parsedResponse.ThisUpdate.Unix())
+		revokedAt = float64(parsedResponse.RevokedAt.Unix())
+		producedAt = float64(parsedResponse.ProducedAt.Unix())
+	}
+	expectedResults := []*registryResult{
+		&registryResult{
+			Name:  "ssl_ocsp_response_stapled",
+			Value: stapled,
+		},
+		&registryResult{
+			Name:  "ssl_ocsp_response_status",
+			Value: status,
+		},
+		&registryResult{
+			Name:  "ssl_ocsp_response_next_update",
+			Value: nextUpdate,
+		},
+		&registryResult{
+			Name:  "ssl_ocsp_response_this_update",
+			Value: thisUpdate,
+		},
+		&registryResult{
+			Name:  "ssl_ocsp_response_revoked_at",
+			Value: revokedAt,
+		},
+		&registryResult{
+			Name:  "ssl_ocsp_response_produced_at",
+			Value: producedAt,
+		},
+	}
+	checkRegistryResults(expectedResults, mfs, t)
+}
+
+func checkTLSVersionMetrics(version string, registry *prometheus.Registry, t *testing.T) {
+	mfs, err := registry.Gather()
+	if err != nil {
+		t.Fatal(err)
+	}
+	expectedResults := []*registryResult{
+		&registryResult{
+			Name: "ssl_tls_version_info",
+			LabelValues: map[string]string{
+				"version": version,
+			},
+			Value: 1,
+		},
+	}
+	checkRegistryResults(expectedResults, mfs, t)
+}
+
+func newCertificate(certPEM []byte) (*x509.Certificate, error) {
+	block, _ := pem.Decode(certPEM)
+	return x509.ParseCertificate(block.Bytes)
+}
+
+func newKey(keyPEM []byte) (*rsa.PrivateKey, error) {
+	block, _ := pem.Decode([]byte(keyPEM))
+	return x509.ParsePKCS1PrivateKey(block.Bytes)
+}
--- a/prober/prober.go
+++ b/prober/prober.go
@@ -1,20 +1,25 @@
 package prober

 import (
-	"crypto/tls"
-	"time"
+	"context"

-	"github.com/ribbybibby/ssl_exporter/config"
+	"github.com/go-kit/log"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
 )

 var (
 	// Probers maps a friendly name to a corresponding probe function
 	Probers = map[string]ProbeFn{
-		"https": ProbeHTTPS,
-		"http":  ProbeHTTPS,
-		"tcp":   ProbeTCP,
+		"https":      ProbeHTTPS,
+		"http":       ProbeHTTPS,
+		"http_file":  ProbeHTTPFile,
+		"tcp":        ProbeTCP,
+		"file":       ProbeFile,
+		"kubernetes": ProbeKubernetes,
+		"kubeconfig": ProbeKubeconfig,
 	}
 )

 // ProbeFn probes
-type ProbeFn func(target string, module config.Module, timeout time.Duration) (*tls.ConnectionState, error)
+type ProbeFn func(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error
--- a/prober/tcp.go
+++ b/prober/tcp.go
@@ -2,67 +2,57 @@ package prober

 import (
 	"bufio"
+	"bytes"
+	"context"
 	"crypto/tls"
 	"fmt"
+	"io"
 	"net"
 	"regexp"
-	"time"

-	"github.com/ribbybibby/ssl_exporter/config"
-
-	pconfig "github.com/prometheus/common/config"
-	"github.com/prometheus/common/log"
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
 )

 // ProbeTCP performs a tcp probe
-func ProbeTCP(target string, module config.Module, timeout time.Duration) (*tls.ConnectionState, error) {
-	dialer := &net.Dialer{Timeout: timeout}
-
-	conn, err := dialer.Dial("tcp", target)
+func ProbeTCP(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error {
+	tlsConfig, err := newTLSConfig(target, registry, &module.TLSConfig)
 	if err != nil {
-		return nil, err
+		return err
+	}
+
+	dialer := &net.Dialer{}
+	conn, err := dialer.DialContext(ctx, "tcp", target)
+	if err != nil {
+		return err
 	}
 	defer conn.Close()

-	if err := conn.SetDeadline(time.Now().Add(timeout)); err != nil {
-		return nil, fmt.Errorf("Error setting deadline")
+	deadline, _ := ctx.Deadline()
+	if err := conn.SetDeadline(deadline); err != nil {
+		return fmt.Errorf("Error setting deadline")
 	}

 	if module.TCP.StartTLS != "" {
-		err = startTLS(conn, module.TCP.StartTLS)
+		err = startTLS(logger, conn, module.TCP.StartTLS)
 		if err != nil {
-			return nil, err
+			return err
 		}
 	}

-	tlsConfig, err := pconfig.NewTLSConfig(&module.TLSConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	if tlsConfig.ServerName == "" {
-		targetAddress, _, err := net.SplitHostPort(target)
-		if err != nil {
-			return nil, err
-		}
-		tlsConfig.ServerName = targetAddress
-	}
-
 	tlsConn := tls.Client(conn, tlsConfig)
 	defer tlsConn.Close()

-	if err := tlsConn.Handshake(); err != nil {
-		return nil, err
-	}
-
-	state := tlsConn.ConnectionState()
-
-	return &state, nil
+	return tlsConn.Handshake()
 }

 type queryResponse struct {
-	expect string
-	send   string
+	expect      string
+	send        string
+	sendBytes   []byte
+	expectBytes []byte
 }

 var (
@@ -121,11 +111,30 @@ var (
 				expect: "OK",
 			},
 		},
+		"postgres": []queryResponse{
+			queryResponse{
+				sendBytes: []byte{0x00, 0x00, 0x00, 0x08, 0x04, 0xd2, 0x16, 0x2f},
+			},
+			queryResponse{
+				expectBytes: []byte{0x53},
+			},
+		},
+		"pop3": []queryResponse{
+			queryResponse{
+				expect: "OK",
+			},
+			queryResponse{
+				send: "STLS",
+			},
+			queryResponse{
+				expect: "OK",
+			},
+		},
 	}
 )

 // startTLS will send the STARTTLS command for the given protocol
-func startTLS(conn net.Conn, proto string) error {
+func startTLS(logger log.Logger, conn net.Conn, proto string) error {
 	var err error

 	qr, ok := startTLSqueryResponses[proto]
@@ -138,13 +147,13 @@ func startTLS(conn net.Conn, proto string) error {
 		if qr.expect != "" {
 			var match bool
 			for scanner.Scan() {
-				log.Debugf("read line: %s", scanner.Text())
+				level.Debug(logger).Log("msg", fmt.Sprintf("read line: %s", scanner.Text()))
 				match, err = regexp.Match(qr.expect, scanner.Bytes())
 				if err != nil {
 					return err
 				}
 				if match {
-					log.Debugf("regex: %s matched: %s", qr.expect, scanner.Text())
+					level.Debug(logger).Log("msg", fmt.Sprintf("regex: %s matched: %s", qr.expect, scanner.Text()))
 					break
 				}
 			}
@@ -155,12 +164,31 @@ func startTLS(conn net.Conn, proto string) error {
 				return fmt.Errorf("regex: %s didn't match: %s", qr.expect, scanner.Text())
 			}
 		}
+		if len(qr.expectBytes) > 0 {
+			buffer := make([]byte, len(qr.expectBytes))
+			_, err = io.ReadFull(conn, buffer)
+			if err != nil {
+				return nil
+			}
+			level.Debug(logger).Log("msg", fmt.Sprintf("read bytes: %x", buffer))
+			if bytes.Compare(buffer, qr.expectBytes) != 0 {
+				return fmt.Errorf("read bytes %x didn't match with expected bytes %x", buffer, qr.expectBytes)
+			} else {
+				level.Debug(logger).Log("msg", fmt.Sprintf("expected bytes %x matched with read bytes %x", qr.expectBytes, buffer))
+			}
+		}
 		if qr.send != "" {
-			log.Debugf("sending line: %s", qr.send)
+			level.Debug(logger).Log("msg", fmt.Sprintf("sending line: %s", qr.send))
 			if _, err := fmt.Fprintf(conn, "%s\r\n", qr.send); err != nil {
 				return err
 			}
 		}
+		if len(qr.sendBytes) > 0 {
+			level.Debug(logger).Log("msg", fmt.Sprintf("sending bytes: %x", qr.sendBytes))
+			if _, err = conn.Write(qr.sendBytes); err != nil {
+				return err
+			}
+		}
 	}
 	return nil
 }
--- a/prober/tcp_test.go
+++ b/prober/tcp_test.go
@@ -1,22 +1,29 @@
 package prober

 import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"crypto/rsa"
 	"crypto/tls"
+	"crypto/x509"
+	"math/big"
 	"net"
 	"testing"
 	"time"

-	"github.com/ribbybibby/ssl_exporter/config"
-	"github.com/ribbybibby/ssl_exporter/test"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/test"
+	"golang.org/x/crypto/ocsp"

-	pconfig "github.com/prometheus/common/config"
+	"github.com/prometheus/client_golang/prometheus"
 )

 // TestProbeTCP tests the typical case
 func TestProbeTCP(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
 	if err != nil {
-		t.Fatalf(err.Error())
+		t.Fatal(err)
 	}
 	defer teardown()

@@ -24,15 +31,28 @@ func TestProbeTCP(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	if _, err := ProbeTCP(server.Listener.Addr().String(), module, 10*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeTCPInvalidName tests hitting the server on an address which isn't
@@ -48,7 +68,7 @@ func TestProbeTCPInvalidName(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
@@ -56,7 +76,12 @@ func TestProbeTCPInvalidName(t *testing.T) {

 	_, listenPort, _ := net.SplitHostPort(server.Listener.Addr().String())

-	if _, err := ProbeTCP("localhost:"+listenPort, module, 10*time.Second); err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), "localhost:"+listenPort, module, registry); err == nil {
 		t.Fatalf("expected error but err was nil")
 	}
 }
@@ -64,7 +89,7 @@ func TestProbeTCPInvalidName(t *testing.T) {
 // TestProbeTCPServerName tests that the probe is successful when the
 // servername is provided in the TLS config
 func TestProbeTCPServerName(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -76,16 +101,29 @@ func TestProbeTCPServerName(t *testing.T) {
 	host, listenPort, _ := net.SplitHostPort(server.Listener.Addr().String())

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 			ServerName:         host,
 		},
 	}

-	if _, err := ProbeTCP("localhost:"+listenPort, module, 10*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), "localhost:"+listenPort, module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeTCPExpired tests that the probe fails with an expired server cert
@@ -108,13 +146,18 @@ func TestProbeTCPExpired(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	if _, err := ProbeTCP(server.Listener.Addr().String(), module, 5*time.Second); err == nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err == nil {
 		t.Fatalf("expected error but err is nil")
 	}
 }
@@ -122,7 +165,7 @@ func TestProbeTCPExpired(t *testing.T) {
 // TestProbeTCPExpiredInsecure tests that the probe succeeds with an expired server cert
 // when skipping cert verification
 func TestProbeTCPExpiredInsecure(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -140,24 +183,33 @@ func TestProbeTCPExpiredInsecure(t *testing.T) {
 	defer server.Close()

 	module := config.Module{
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: true,
 		},
 	}

-	state, err := ProbeTCP(server.Listener.Addr().String(), module, 5*time.Second)
-	if err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
-	if state == nil {
-		t.Fatalf("expected state but got nil")
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
 	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeTCPStartTLSSMTP tests STARTTLS against a mock SMTP server
 func TestProbeTCPStartTLSSMTP(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -170,20 +222,33 @@ func TestProbeTCPStartTLSSMTP(t *testing.T) {
 		TCP: config.TCPProbe{
 			StartTLS: "smtp",
 		},
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	if _, err := ProbeTCP(server.Listener.Addr().String(), module, 10*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeTCPStartTLSFTP tests STARTTLS against a mock FTP server
 func TestProbeTCPStartTLSFTP(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -196,20 +261,33 @@ func TestProbeTCPStartTLSFTP(t *testing.T) {
 		TCP: config.TCPProbe{
 			StartTLS: "ftp",
 		},
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	if _, err := ProbeTCP(server.Listener.Addr().String(), module, 10*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }

 // TestProbeTCPStartTLSIMAP tests STARTTLS against a mock IMAP server
 func TestProbeTCPStartTLSIMAP(t *testing.T) {
-	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -222,13 +300,262 @@ func TestProbeTCPStartTLSIMAP(t *testing.T) {
 		TCP: config.TCPProbe{
 			StartTLS: "imap",
 		},
-		TLSConfig: pconfig.TLSConfig{
+		TLSConfig: config.TLSConfig{
 			CAFile:             caFile,
 			InsecureSkipVerify: false,
 		},
 	}

-	if _, err := ProbeTCP(server.Listener.Addr().String(), module, 10*time.Second); err != nil {
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
 		t.Fatalf("error: %s", err)
 	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeTCPStartTLSPOP3 tests STARTTLS against a mock POP3 server
+func TestProbeTCPStartTLSPOP3(t *testing.T) {
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	server.StartPOP3()
+	defer server.Close()
+
+	module := config.Module{
+		TCP: config.TCPProbe{
+			StartTLS: "pop3",
+		},
+		TLSConfig: config.TLSConfig{
+			CAFile:             caFile,
+			InsecureSkipVerify: false,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeTCPStartTLSPostgreSQL tests STARTTLS against a mock PostgreSQL server
+func TestProbeTCPStartTLSPostgreSQL(t *testing.T) {
+	server, certPEM, _, caFile, teardown, err := test.SetupTCPServer()
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	server.StartPostgreSQL()
+	defer server.Close()
+
+	module := config.Module{
+		TCP: config.TCPProbe{
+			StartTLS: "postgres",
+		},
+		TLSConfig: config.TLSConfig{
+			CAFile:             caFile,
+			InsecureSkipVerify: false,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeTCPTimeout tests that the TCP probe respects the timeout in the
+// context
+func TestProbeTCPTimeout(t *testing.T) {
+	server, _, _, caFile, teardown, err := test.SetupTCPServer()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer teardown()
+
+	server.StartTLSWait(time.Second * 3)
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile:             caFile,
+			InsecureSkipVerify: false,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err == nil {
+		t.Fatalf("Expected error but returned error was nil")
+	}
+}
+
+// TestProbeTCPOCSP tests a TCP probe with OCSP stapling
+func TestProbeTCPOCSP(t *testing.T) {
+	server, certPEM, keyPEM, caFile, teardown, err := test.SetupTCPServer()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer teardown()
+
+	cert, err := newCertificate(certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	key, err := newKey(keyPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := ocsp.CreateResponse(cert, cert, ocsp.Response{SerialNumber: big.NewInt(64), Status: 1}, key)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	server.TLS.Certificates[0].OCSPStaple = resp
+
+	server.StartTLS()
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile:             caFile,
+			InsecureSkipVerify: false,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkCertificateMetrics(cert, registry, t)
+	checkOCSPMetrics(resp, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
+}
+
+// TestProbeTCPVerifiedChains tests the verified chain metrics returned by a tcp
+// probe
+func TestProbeTCPVerifiedChains(t *testing.T) {
+	rootPrivateKey, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+
+	rootCertExpiry := time.Now().AddDate(0, 0, 5)
+	rootCertTmpl := test.GenerateCertificateTemplate(rootCertExpiry)
+	rootCertTmpl.IsCA = true
+	rootCertTmpl.SerialNumber = big.NewInt(1)
+	rootCert, rootCertPem := test.GenerateSelfSignedCertificateWithPrivateKey(rootCertTmpl, rootPrivateKey)
+
+	olderRootCertExpiry := time.Now().AddDate(0, 0, 3)
+	olderRootCertTmpl := test.GenerateCertificateTemplate(olderRootCertExpiry)
+	olderRootCertTmpl.IsCA = true
+	olderRootCertTmpl.SerialNumber = big.NewInt(2)
+	olderRootCert, olderRootCertPem := test.GenerateSelfSignedCertificateWithPrivateKey(olderRootCertTmpl, rootPrivateKey)
+
+	oldestRootCertExpiry := time.Now().AddDate(0, 0, 1)
+	oldestRootCertTmpl := test.GenerateCertificateTemplate(oldestRootCertExpiry)
+	oldestRootCertTmpl.IsCA = true
+	oldestRootCertTmpl.SerialNumber = big.NewInt(3)
+	oldestRootCert, oldestRootCertPem := test.GenerateSelfSignedCertificateWithPrivateKey(oldestRootCertTmpl, rootPrivateKey)
+
+	serverCertExpiry := time.Now().AddDate(0, 0, 4)
+	serverCertTmpl := test.GenerateCertificateTemplate(serverCertExpiry)
+	serverCertTmpl.SerialNumber = big.NewInt(4)
+	serverCert, serverCertPem, serverKey := test.GenerateSignedCertificate(serverCertTmpl, olderRootCert, rootPrivateKey)
+
+	verifiedChains := [][]*x509.Certificate{
+		[]*x509.Certificate{
+			serverCert,
+			rootCert,
+		},
+		[]*x509.Certificate{
+			serverCert,
+			olderRootCert,
+		},
+		[]*x509.Certificate{
+			serverCert,
+			oldestRootCert,
+		},
+	}
+
+	caCertPem := bytes.Join([][]byte{oldestRootCertPem, olderRootCertPem, rootCertPem}, []byte(""))
+
+	server, caFile, teardown, err := test.SetupTCPServerWithCertAndKey(
+		caCertPem,
+		serverCertPem,
+		serverKey,
+	)
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+	defer teardown()
+
+	server.StartTLS()
+	defer server.Close()
+
+	module := config.Module{
+		TLSConfig: config.TLSConfig{
+			CAFile: caFile,
+		},
+	}
+
+	registry := prometheus.NewRegistry()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := ProbeTCP(ctx, newTestLogger(), server.Listener.Addr().String(), module, registry); err != nil {
+		t.Fatalf("error: %s", err)
+	}
+
+	checkCertificateMetrics(serverCert, registry, t)
+	checkOCSPMetrics([]byte{}, registry, t)
+	checkVerifiedChainMetrics(verifiedChains, registry, t)
+	checkTLSVersionMetrics("TLS 1.3", registry, t)
 }
--- a/prober/test.go
+++ b/prober/test.go
@@ -0,0 +1,11 @@
+package prober
+
+import (
+	"os"
+
+	"github.com/go-kit/log"
+)
+
+func newTestLogger() log.Logger {
+	return log.NewLogfmtLogger(log.NewSyncWriter(os.Stdout))
+}
--- a/prober/tls.go
+++ b/prober/tls.go
@@ -0,0 +1,72 @@
+package prober
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/pem"
+	"net"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+)
+
+// newTLSConfig sets up TLS config and instruments it with a function that
+// collects metrics for the verified chain
+func newTLSConfig(target string, registry *prometheus.Registry, cfg *config.TLSConfig) (*tls.Config, error) {
+	tlsConfig, err := config.NewTLSConfig(cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	if tlsConfig.ServerName == "" && target != "" {
+		targetAddress, _, err := net.SplitHostPort(target)
+		if err != nil {
+			return nil, err
+		}
+		tlsConfig.ServerName = targetAddress
+	}
+
+	tlsConfig.VerifyConnection = func(state tls.ConnectionState) error {
+		return collectConnectionStateMetrics(state, registry)
+	}
+
+	return tlsConfig, nil
+}
+
+func uniq(certs []*x509.Certificate) []*x509.Certificate {
+	r := []*x509.Certificate{}
+
+	for _, c := range certs {
+		if !contains(r, c) {
+			r = append(r, c)
+		}
+	}
+
+	return r
+}
+
+func contains(certs []*x509.Certificate, cert *x509.Certificate) bool {
+	for _, c := range certs {
+		if (c.SerialNumber.String() == cert.SerialNumber.String()) && (c.Issuer.CommonName == cert.Issuer.CommonName) {
+			return true
+		}
+	}
+	return false
+}
+
+func decodeCertificates(data []byte) ([]*x509.Certificate, error) {
+	var certs []*x509.Certificate
+	for block, rest := pem.Decode(data); block != nil; block, rest = pem.Decode(rest) {
+		if block.Type == "CERTIFICATE" {
+			cert, err := x509.ParseCertificate(block.Bytes)
+			if err != nil {
+				return certs, err
+			}
+			if !contains(certs, cert) {
+				certs = append(certs, cert)
+			}
+		}
+	}
+
+	return certs, nil
+}
--- a/ssl_exporter.go
+++ b/ssl_exporter.go
@@ -1,301 +1,37 @@
 package main

 import (
-	"crypto/tls"
-	"crypto/x509"
+	"context"
 	"fmt"
+	"net/http"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/alecthomas/kingpin/v2"
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"github.com/prometheus/common/log"
+	"github.com/prometheus/common/promlog"
+	promlogflag "github.com/prometheus/common/promlog/flag"
 	"github.com/prometheus/common/version"
-	"github.com/ribbybibby/ssl_exporter/config"
-	"github.com/ribbybibby/ssl_exporter/prober"
-	"golang.org/x/crypto/ocsp"
-	"gopkg.in/alecthomas/kingpin.v2"
-	"net/http"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
+	"github.com/ribbybibby/ssl_exporter/v2/config"
+	"github.com/ribbybibby/ssl_exporter/v2/prober"
 )

 const (
 	namespace = "ssl"
 )

-var (
-	tlsConnectSuccess = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "tls_connect_success"),
-		"If the TLS connection was a success",
-		nil, nil,
-	)
-	tlsVersion = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "tls_version_info"),
-		"The TLS version used",
-		[]string{"version"}, nil,
-	)
-	proberType = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "prober"),
-		"The prober used by the exporter to connect to the target",
-		[]string{"prober"}, nil,
-	)
-	notBefore = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "cert_not_before"),
-		"NotBefore expressed as a Unix Epoch Time",
-		[]string{"serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"}, nil,
-	)
-	notAfter = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "cert_not_after"),
-		"NotAfter expressed as a Unix Epoch Time",
-		[]string{"serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"}, nil,
-	)
-	verifiedNotBefore = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "verified_cert_not_before"),
-		"NotBefore expressed as a Unix Epoch Time for a certificate in the list of verified chains",
-		[]string{"chain_no", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"}, nil,
-	)
-	verifiedNotAfter = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "verified_cert_not_after"),
-		"NotAfter expressed as a Unix Epoch Time for a certificate in the list of verified chains",
-		[]string{"chain_no", "serial_no", "issuer_cn", "cn", "dnsnames", "ips", "emails", "ou"}, nil,
-	)
-	ocspStapled = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "ocsp_response_stapled"),
-		"If the connection state contains a stapled OCSP response",
-		nil, nil,
-	)
-	ocspStatus = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "ocsp_response_status"),
-		"The status in the OCSP response 0=Good 1=Revoked 2=Unknown",
-		nil, nil,
-	)
-	ocspProducedAt = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "ocsp_response_produced_at"),
-		"The producedAt value in the OCSP response, expressed as a Unix Epoch Time",
-		nil, nil,
-	)
-	ocspThisUpdate = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "ocsp_response_this_update"),
-		"The thisUpdate value in the OCSP response, expressed as a Unix Epoch Time",
-		nil, nil,
-	)
-	ocspNextUpdate = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "ocsp_response_next_update"),
-		"The nextUpdate value in the OCSP response, expressed as a Unix Epoch Time",
-		nil, nil,
-	)
-	ocspRevokedAt = prometheus.NewDesc(
-		prometheus.BuildFQName(namespace, "", "ocsp_response_revoked_at"),
-		"The revocationTime value in the OCSP response, expressed as a Unix Epoch Time",
-		nil, nil,
-	)
-)
-
-// Exporter is the exporter type...
-type Exporter struct {
-	target  string
-	prober  prober.ProbeFn
-	timeout time.Duration
-	module  config.Module
-}
-
-// Describe metrics
-func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
-	ch <- tlsConnectSuccess
-	ch <- tlsVersion
-	ch <- proberType
-	ch <- notAfter
-	ch <- notBefore
-	ch <- verifiedNotAfter
-	ch <- verifiedNotBefore
-	ch <- ocspStapled
-	ch <- ocspStatus
-	ch <- ocspProducedAt
-	ch <- ocspThisUpdate
-	ch <- ocspNextUpdate
-	ch <- ocspRevokedAt
-}
-
-// Collect metrics
-func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
-	ch <- prometheus.MustNewConstMetric(
-		proberType, prometheus.GaugeValue, 1, e.module.Prober,
-	)
-
-	state, err := e.prober(e.target, e.module, e.timeout)
-	if err != nil {
-		log.Errorf("error=%s target=%s prober=%s timeout=%s", err, e.target, e.module.Prober, e.timeout)
-		ch <- prometheus.MustNewConstMetric(
-			tlsConnectSuccess, prometheus.GaugeValue, 0,
-		)
-		return
-	}
-
-	// Get the TLS version from the connection state and export it as a metric
-	ch <- prometheus.MustNewConstMetric(
-		tlsVersion, prometheus.GaugeValue, 1, getTLSVersion(state),
-	)
-
-	// Retrieve certificates from the connection state
-	peerCertificates := state.PeerCertificates
-	if len(peerCertificates) < 1 {
-		log.Errorf("error=No certificates found in connection state. target=%s prober=%s", e.target, e.module.Prober)
-		ch <- prometheus.MustNewConstMetric(
-			tlsConnectSuccess, prometheus.GaugeValue, 0,
-		)
-		return
-	}
-
-	// If there are peer certificates in the connection state then consider
-	// the tls connection a success
-	ch <- prometheus.MustNewConstMetric(
-		tlsConnectSuccess, prometheus.GaugeValue, 1,
-	)
-
-	// Remove duplicate certificates from the response
-	peerCertificates = uniq(peerCertificates)
-
-	// Loop through peer certificates and create metrics
-	for _, cert := range peerCertificates {
-		if !cert.NotAfter.IsZero() {
-			ch <- prometheus.MustNewConstMetric(
-				notAfter,
-				prometheus.GaugeValue,
-				float64(cert.NotAfter.UnixNano()/1e9),
-				cert.SerialNumber.String(),
-				cert.Issuer.CommonName,
-				cert.Subject.CommonName,
-				getDNSNames(cert),
-				getIPAddresses(cert),
-				getEmailAddresses(cert),
-				getOrganizationalUnits(cert),
-			)
-		}
-
-		if !cert.NotBefore.IsZero() {
-			ch <- prometheus.MustNewConstMetric(
-				notBefore,
-				prometheus.GaugeValue,
-				float64(cert.NotBefore.UnixNano()/1e9),
-				cert.SerialNumber.String(),
-				cert.Issuer.CommonName,
-				cert.Subject.CommonName,
-				getDNSNames(cert),
-				getIPAddresses(cert),
-				getEmailAddresses(cert),
-				getOrganizationalUnits(cert),
-			)
-		}
-	}
-
-	// Retrieve the list of verified chains from the connection state
-	verifiedChains := state.VerifiedChains
-
-	// Sort the verified chains from the chain that is valid for longest to the chain
-	// that expires the soonest
-	sort.Slice(verifiedChains, func(i, j int) bool {
-		iExpiry := time.Time{}
-		for _, cert := range verifiedChains[i] {
-			if (iExpiry.IsZero() || cert.NotAfter.Before(iExpiry)) && !cert.NotAfter.IsZero() {
-				iExpiry = cert.NotAfter
-			}
-		}
-		jExpiry := time.Time{}
-		for _, cert := range verifiedChains[j] {
-			if (jExpiry.IsZero() || cert.NotAfter.Before(jExpiry)) && !cert.NotAfter.IsZero() {
-				jExpiry = cert.NotAfter
-			}
-		}
-
-		return iExpiry.After(jExpiry)
-	})
-
-	// Loop through the verified chains creating metrics. Label the metrics
-	// with the index of the chain.
-	for i, chain := range verifiedChains {
-		chain = uniq(chain)
-		for _, cert := range chain {
-			chainNo := strconv.Itoa(i)
-
-			if !cert.NotAfter.IsZero() {
-				ch <- prometheus.MustNewConstMetric(
-					verifiedNotAfter,
-					prometheus.GaugeValue,
-					float64(cert.NotAfter.UnixNano()/1e9),
-					chainNo,
-					cert.SerialNumber.String(),
-					cert.Issuer.CommonName,
-					cert.Subject.CommonName,
-					getDNSNames(cert),
-					getIPAddresses(cert),
-					getEmailAddresses(cert),
-					getOrganizationalUnits(cert),
-				)
-			}
-
-			if !cert.NotBefore.IsZero() {
-				ch <- prometheus.MustNewConstMetric(
-					verifiedNotBefore,
-					prometheus.GaugeValue,
-					float64(cert.NotBefore.UnixNano()/1e9),
-					chainNo,
-					cert.SerialNumber.String(),
-					cert.Issuer.CommonName,
-					cert.Subject.CommonName,
-					getDNSNames(cert),
-					getIPAddresses(cert),
-					getEmailAddresses(cert),
-					getOrganizationalUnits(cert),
-				)
-			}
-		}
-	}
-
-	if err := collectOCSPMetrics(ch, state); err != nil {
-		log.Errorf("error=%s target=%s prober=%s timeout=%s", err, e.target, e.module.Prober, e.timeout)
-	}
-}
-
-func collectOCSPMetrics(ch chan<- prometheus.Metric, state *tls.ConnectionState) error {
-	if len(state.OCSPResponse) > 0 {
-		resp, err := ocsp.ParseResponse(state.OCSPResponse, nil)
-		if err != nil {
-			ch <- prometheus.MustNewConstMetric(
-				ocspStapled, prometheus.GaugeValue, 0,
-			)
-			return err
-		}
-		ch <- prometheus.MustNewConstMetric(
-			ocspStapled, prometheus.GaugeValue, 1,
-		)
-		ch <- prometheus.MustNewConstMetric(
-			ocspStatus, prometheus.GaugeValue, float64(resp.Status),
-		)
-		ch <- prometheus.MustNewConstMetric(
-			ocspProducedAt, prometheus.GaugeValue, float64(resp.ProducedAt.Unix()),
-		)
-		ch <- prometheus.MustNewConstMetric(
-			ocspThisUpdate, prometheus.GaugeValue, float64(resp.ThisUpdate.Unix()),
-		)
-		ch <- prometheus.MustNewConstMetric(
-			ocspNextUpdate, prometheus.GaugeValue, float64(resp.NextUpdate.Unix()),
-		)
-		ch <- prometheus.MustNewConstMetric(
-			ocspRevokedAt, prometheus.GaugeValue, float64(resp.RevokedAt.Unix()),
-		)
-	} else {
-		ch <- prometheus.MustNewConstMetric(
-			ocspStapled, prometheus.GaugeValue, 0,
-		)
-	}
-
-	return nil
-}
-
-func probeHandler(w http.ResponseWriter, r *http.Request, conf *config.Config) {
+func probeHandler(logger log.Logger, w http.ResponseWriter, r *http.Request, conf *config.Config) {
 	moduleName := r.URL.Query().Get("module")
 	if moduleName == "" {
-		moduleName = "tcp"
+		moduleName = conf.DefaultModule
+		if moduleName == "" {
+			http.Error(w, "Module parameter must be set", http.StatusBadRequest)
+			return
+		}
 	}
 	module, ok := conf.Modules[moduleName]
 	if !ok {
@@ -325,105 +61,59 @@ func probeHandler(w http.ResponseWriter, r *http.Request, conf *config.Config) {
 		timeout = time.Duration((timeoutSeconds) * 1e9)
 	}

-	target := r.URL.Query().Get("target")
+	ctx, cancel := context.WithTimeout(r.Context(), timeout)
+	defer cancel()
+
+	target := module.Target
 	if target == "" {
-		http.Error(w, "Target parameter is missing", http.StatusBadRequest)
-		return
+		target = r.URL.Query().Get("target")
+		if target == "" {
+			http.Error(w, "Target parameter is missing", http.StatusBadRequest)
+			return
+		}
 	}

-	prober, ok := prober.Probers[module.Prober]
+	probeFunc, ok := prober.Probers[module.Prober]
 	if !ok {
 		http.Error(w, fmt.Sprintf("Unknown prober %q", module.Prober), http.StatusBadRequest)
 		return
 	}

-	exporter := &Exporter{
-		target:  target,
-		prober:  prober,
-		timeout: timeout,
-		module:  module,
-	}
+	var (
+		probeSuccess = prometheus.NewGauge(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "probe_success"),
+				Help: "If the probe was a success",
+			},
+		)
+		proberType = prometheus.NewGaugeVec(
+			prometheus.GaugeOpts{
+				Name: prometheus.BuildFQName(namespace, "", "prober"),
+				Help: "The prober used by the exporter to connect to the target",
+			},
+			[]string{"prober"},
+		)
+	)

 	registry := prometheus.NewRegistry()
-	registry.MustRegister(exporter)
+	registry.MustRegister(probeSuccess, proberType)
+	proberType.WithLabelValues(module.Prober).Set(1)
+
+	logger = log.With(logger, "target", target, "prober", module.Prober, "timeout", timeout)
+
+	err := probeFunc(ctx, logger, target, module, registry)
+	if err != nil {
+		level.Error(logger).Log("msg", err)
+		probeSuccess.Set(0)
+	} else {
+		probeSuccess.Set(1)
+	}

 	// Serve
 	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
 	h.ServeHTTP(w, r)
 }

-func uniq(certs []*x509.Certificate) []*x509.Certificate {
-	r := []*x509.Certificate{}
-
-	for _, c := range certs {
-		if !contains(r, c) {
-			r = append(r, c)
-		}
-	}
-
-	return r
-}
-
-func contains(certs []*x509.Certificate, cert *x509.Certificate) bool {
-	for _, c := range certs {
-		if (c.SerialNumber.String() == cert.SerialNumber.String()) && (c.Issuer.CommonName == cert.Issuer.CommonName) {
-			return true
-		}
-	}
-	return false
-}
-
-func getTLSVersion(state *tls.ConnectionState) string {
-	switch state.Version {
-	case tls.VersionTLS10:
-		return "TLS 1.0"
-	case tls.VersionTLS11:
-		return "TLS 1.1"
-	case tls.VersionTLS12:
-		return "TLS 1.2"
-	case tls.VersionTLS13:
-		return "TLS 1.3"
-	default:
-		return "unknown"
-	}
-}
-
-func getDNSNames(cert *x509.Certificate) string {
-	if len(cert.DNSNames) > 0 {
-		return "," + strings.Join(cert.DNSNames, ",") + ","
-	}
-
-	return ""
-}
-
-func getEmailAddresses(cert *x509.Certificate) string {
-	if len(cert.EmailAddresses) > 0 {
-		return "," + strings.Join(cert.EmailAddresses, ",") + ","
-	}
-
-	return ""
-}
-
-func getIPAddresses(cert *x509.Certificate) string {
-	if len(cert.IPAddresses) > 0 {
-		ips := ","
-		for _, ip := range cert.IPAddresses {
-			ips = ips + ip.String() + ","
-		}
-		return ips
-	}
-
-	return ""
-}
-
-func getOrganizationalUnits(cert *x509.Certificate) string {
-	if len(cert.Subject.OrganizationalUnit) > 0 {
-		return "," + strings.Join(cert.Subject.OrganizationalUnit, ",") + ","
-	}
-
-	return ""
-}
-
 func init() {
 	prometheus.MustRegister(version.NewCollector(namespace + "_exporter"))
 }
@@ -434,28 +124,32 @@ func main() {
 		metricsPath   = kingpin.Flag("web.metrics-path", "Path under which to expose metrics").Default("/metrics").String()
 		probePath     = kingpin.Flag("web.probe-path", "Path under which to expose the probe endpoint").Default("/probe").String()
 		configFile    = kingpin.Flag("config.file", "SSL exporter configuration file").Default("").String()
+		promlogConfig = promlog.Config{}
 		err           error
 	)

-	log.AddFlags(kingpin.CommandLine)
+	promlogflag.AddFlags(kingpin.CommandLine, &promlogConfig)
 	kingpin.Version(version.Print(namespace + "_exporter"))
 	kingpin.HelpFlag.Short('h')
 	kingpin.Parse()

+	logger := promlog.New(&promlogConfig)
+
 	conf := config.DefaultConfig
 	if *configFile != "" {
 		conf, err = config.LoadConfig(*configFile)
 		if err != nil {
-			log.Fatalln(err)
+			level.Error(logger).Log("msg", err)
+			os.Exit(1)
 		}
 	}

-	log.Infoln("Starting "+namespace+"_exporter", version.Info())
-	log.Infoln("Build context", version.BuildContext())
+	level.Info(logger).Log("msg", fmt.Sprintf("Starting %s_exporter %s", namespace, version.Info()))
+	level.Info(logger).Log("msg", fmt.Sprintf("Build context %s", version.BuildContext()))

 	http.Handle(*metricsPath, promhttp.Handler())
 	http.HandleFunc(*probePath, func(w http.ResponseWriter, r *http.Request) {
-		probeHandler(w, r, conf)
+		probeHandler(logger, w, r, conf)
 	})
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		_, _ = w.Write([]byte(`<html>
@@ -468,6 +162,7 @@ func main() {
 						 </html>`))
 	})

-	log.Infoln("Listening on", *listenAddress)
-	log.Fatal(http.ListenAndServe(*listenAddress, nil))
+	level.Info(logger).Log("msg", fmt.Sprintf("Listening on %s", *listenAddress))
+	level.Error(logger).Log("msg", http.ListenAndServe(*listenAddress, nil))
+	os.Exit(1)
 }
--- a/ssl_exporter_test.go
+++ b/ssl_exporter_test.go
--- a/test/tcp.go
+++ b/test/tcp.go
@@ -1,13 +1,16 @@
 package test

 import (
+	"bytes"
 	"crypto/tls"
 	"fmt"
+	"io"
 	"net"
 	"os"
 	"time"

-	"github.com/prometheus/common/log"
+	"github.com/go-kit/log"
+	"github.com/go-kit/log/level"
 )

 // TCPServer allows manipulation of the tls.Config before starting the listener
@@ -15,6 +18,7 @@ type TCPServer struct {
 	Listener net.Listener
 	TLS      *tls.Config
 	stopCh   chan struct{}
+	logger   log.Logger
 }

 // StartTLS starts a listener that performs an immediate TLS handshake
@@ -29,7 +33,7 @@ func (t *TCPServer) StartTLS() {

 		// Immediately upgrade to TLS.
 		if err := conn.(*tls.Conn).Handshake(); err != nil {
-			log.Errorln(err)
+			level.Error(t.logger).Log("msg", err)
 		} else {
 			// Send some bytes before terminating the connection.
 			fmt.Fprintf(conn, "Hello World!\n")
@@ -53,7 +57,7 @@ func (t *TCPServer) StartTLSWait(d time.Duration) {
 		time.Sleep(d)

 		if err := conn.(*tls.Conn).Handshake(); err != nil {
-			log.Errorln(err)
+			level.Error(t.logger).Log(err)
 		} else {
 			// Send some bytes before terminating the connection.
 			fmt.Fprintf(conn, "Hello World!\n")
@@ -93,7 +97,7 @@ func (t *TCPServer) StartSMTP() {
 		// Upgrade to TLS.
 		tlsConn := tls.Server(conn, t.TLS)
 		if err := tlsConn.Handshake(); err != nil {
-			log.Errorln(err)
+			level.Error(t.logger).Log("msg", err)
 		}
 		defer tlsConn.Close()

@@ -120,7 +124,7 @@ func (t *TCPServer) StartFTP() {
 		// Upgrade to TLS.
 		tlsConn := tls.Server(conn, t.TLS)
 		if err := tlsConn.Handshake(); err != nil {
-			log.Errorln(err)
+			level.Error(t.logger).Log(err)
 		}
 		defer tlsConn.Close()

@@ -152,7 +156,73 @@ func (t *TCPServer) StartIMAP() {
 		// Upgrade to TLS.
 		tlsConn := tls.Server(conn, t.TLS)
 		if err := tlsConn.Handshake(); err != nil {
-			log.Errorln(err)
+			level.Error(t.logger).Log("msg", err)
+		}
+		defer tlsConn.Close()
+
+		t.stopCh <- struct{}{}
+	}()
+}
+
+// StartPOP3 starts a listener that negotiates a TLS connection with an pop3
+// client using STARTTLS
+func (t *TCPServer) StartPOP3() {
+	go func() {
+		conn, err := t.Listener.Accept()
+		if err != nil {
+			panic(fmt.Sprintf("Error accepting on socket: %s", err))
+		}
+		defer conn.Close()
+
+		fmt.Fprintf(conn, "+OK XPOP3 ready.\n")
+		if _, e := fmt.Fscanf(conn, "STLS\n"); e != nil {
+			panic("Error in dialog. No STLS received.")
+		}
+		fmt.Fprintf(conn, "+OK Begin TLS negotiation now.\n")
+
+		// Upgrade to TLS.
+		tlsConn := tls.Server(conn, t.TLS)
+		if err := tlsConn.Handshake(); err != nil {
+			level.Error(t.logger).Log("msg", err)
+		}
+		defer tlsConn.Close()
+
+		t.stopCh <- struct{}{}
+	}()
+}
+
+// StartPostgreSQL starts a listener that negotiates a TLS connection with an postgresql
+// client using STARTTLS
+func (t *TCPServer) StartPostgreSQL() {
+	go func() {
+		conn, err := t.Listener.Accept()
+		if err != nil {
+			panic(fmt.Sprintf("Error accepting on socket: %s", err))
+		}
+		defer conn.Close()
+
+		sslRequestMessage := []byte{0x00, 0x00, 0x00, 0x08, 0x04, 0xd2, 0x16, 0x2f}
+
+		buffer := make([]byte, len(sslRequestMessage))
+
+		_, err = io.ReadFull(conn, buffer)
+		if err != nil {
+			panic("Error reading input from client")
+		}
+
+		if bytes.Compare(buffer, sslRequestMessage) != 0 {
+			panic(fmt.Sprintf("Error in dialog. No %x received", buffer))
+		}
+
+		sslRequestResponse := []byte{0x53}
+
+		if _, err := conn.Write(sslRequestResponse); err != nil {
+			panic("Error writing response to client")
+		}
+
+		tlsConn := tls.Server(conn, t.TLS)
+		if err := tlsConn.Handshake(); err != nil {
+			level.Error(t.logger).Log("msg", err)
 		}
 		defer tlsConn.Close()

@@ -213,6 +283,7 @@ func SetupTCPServerWithCertAndKey(caPEM, certPEM, keyPEM []byte) (*TCPServer, st
 		Listener: ln,
 		TLS:      tlsConfig,
 		stopCh:   make(chan (struct{})),
+		logger:   log.NewLogfmtLogger(log.NewSyncWriter(os.Stdout)),
 	}

 	return server, caFile, teardown, err
--- a/test/test.go
+++ b/test/test.go
@@ -29,6 +29,7 @@ func GenerateTestCertificate(expiry time.Time) ([]byte, []byte) {
 	return pemCert, pemKey
 }

+// GenerateSignedCertificate generates a certificate that is signed
 func GenerateSignedCertificate(cert, parentCert *x509.Certificate, parentKey *rsa.PrivateKey) (*x509.Certificate, []byte, []byte) {
 	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
 	if err != nil {
@@ -49,6 +50,9 @@ func GenerateSignedCertificate(cert, parentCert *x509.Certificate, parentKey *rs
 		pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: derCert}),
 		pem.EncodeToMemory(&pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(privateKey)})
 }
+
+// GenerateSelfSignedCertificateWithPrivateKey generates a self signed
+// certificate with the given private key
 func GenerateSelfSignedCertificateWithPrivateKey(cert *x509.Certificate, privateKey *rsa.PrivateKey) (*x509.Certificate, []byte) {
 	derCert, err := x509.CreateCertificate(rand.Reader, cert, cert, &privateKey.PublicKey, privateKey)
 	if err != nil {
@@ -63,6 +67,7 @@ func GenerateSelfSignedCertificateWithPrivateKey(cert *x509.Certificate, private
 	return genCert, pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: derCert})
 }

+// GenerateCertificateTemplate generates the template used to issue test certificates
 func GenerateCertificateTemplate(expiry time.Time) *x509.Certificate {
 	return &x509.Certificate{
 		BasicConstraintsValid: true,
--- a/vendor/github.com/alecthomas/template/LICENSE
+++ b/vendor/github.com/alecthomas/template/LICENSE
@@ -1,27 +0,0 @@
-Copyright (c) 2012 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- a/vendor/github.com/alecthomas/template/README.md
+++ b/vendor/github.com/alecthomas/template/README.md
@@ -1,25 +0,0 @@
-# Go's `text/template` package with newline elision
-
-This is a fork of Go 1.4's [text/template](http://golang.org/pkg/text/template/) package with one addition: a backslash immediately after a closing delimiter will delete all subsequent newlines until a non-newline.
-
-eg.
-
-```
-{{if true}}\
-hello
-{{end}}\
-```
-
-Will result in:
-
-```
-hello\n
-```
-
-Rather than:
-
-```
-\n
-hello\n
-\n
-```
--- a/vendor/github.com/alecthomas/template/doc.go
+++ b/vendor/github.com/alecthomas/template/doc.go
@@ -1,406 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package template implements data-driven templates for generating textual output.
-
-To generate HTML output, see package html/template, which has the same interface
-as this package but automatically secures HTML output against certain attacks.
-
-Templates are executed by applying them to a data structure. Annotations in the
-template refer to elements of the data structure (typically a field of a struct
-or a key in a map) to control execution and derive values to be displayed.
-Execution of the template walks the structure and sets the cursor, represented
-by a period '.' and called "dot", to the value at the current location in the
-structure as execution proceeds.
-
-The input text for a template is UTF-8-encoded text in any format.
-"Actions"--data evaluations or control structures--are delimited by
-"{{" and "}}"; all text outside actions is copied to the output unchanged.
-Actions may not span newlines, although comments can.
-
-Once parsed, a template may be executed safely in parallel.
-
-Here is a trivial example that prints "17 items are made of wool".
-
-	type Inventory struct {
-		Material string
-		Count    uint
-	}
-	sweaters := Inventory{"wool", 17}
-	tmpl, err := template.New("test").Parse("{{.Count}} items are made of {{.Material}}")
-	if err != nil { panic(err) }
-	err = tmpl.Execute(os.Stdout, sweaters)
-	if err != nil { panic(err) }
-
-More intricate examples appear below.
-
-Actions
-
-Here is the list of actions. "Arguments" and "pipelines" are evaluations of
-data, defined in detail below.
-
-*/
-//	{{/* a comment */}}
-//		A comment; discarded. May contain newlines.
-//		Comments do not nest and must start and end at the
-//		delimiters, as shown here.
-/*
-
-	{{pipeline}}
-		The default textual representation of the value of the pipeline
-		is copied to the output.
-
-	{{if pipeline}} T1 {{end}}
-		If the value of the pipeline is empty, no output is generated;
-		otherwise, T1 is executed.  The empty values are false, 0, any
-		nil pointer or interface value, and any array, slice, map, or
-		string of length zero.
-		Dot is unaffected.
-
-	{{if pipeline}} T1 {{else}} T0 {{end}}
-		If the value of the pipeline is empty, T0 is executed;
-		otherwise, T1 is executed.  Dot is unaffected.
-
-	{{if pipeline}} T1 {{else if pipeline}} T0 {{end}}
-		To simplify the appearance of if-else chains, the else action
-		of an if may include another if directly; the effect is exactly
-		the same as writing
-			{{if pipeline}} T1 {{else}}{{if pipeline}} T0 {{end}}{{end}}
-
-	{{range pipeline}} T1 {{end}}
-		The value of the pipeline must be an array, slice, map, or channel.
-		If the value of the pipeline has length zero, nothing is output;
-		otherwise, dot is set to the successive elements of the array,
-		slice, or map and T1 is executed. If the value is a map and the
-		keys are of basic type with a defined order ("comparable"), the
-		elements will be visited in sorted key order.
-
-	{{range pipeline}} T1 {{else}} T0 {{end}}
-		The value of the pipeline must be an array, slice, map, or channel.
-		If the value of the pipeline has length zero, dot is unaffected and
-		T0 is executed; otherwise, dot is set to the successive elements
-		of the array, slice, or map and T1 is executed.
-
-	{{template "name"}}
-		The template with the specified name is executed with nil data.
-
-	{{template "name" pipeline}}
-		The template with the specified name is executed with dot set
-		to the value of the pipeline.
-
-	{{with pipeline}} T1 {{end}}
-		If the value of the pipeline is empty, no output is generated;
-		otherwise, dot is set to the value of the pipeline and T1 is
-		executed.
-
-	{{with pipeline}} T1 {{else}} T0 {{end}}
-		If the value of the pipeline is empty, dot is unaffected and T0
-		is executed; otherwise, dot is set to the value of the pipeline
-		and T1 is executed.
-
-Arguments
-
-An argument is a simple value, denoted by one of the following.
-
-	- A boolean, string, character, integer, floating-point, imaginary
-	  or complex constant in Go syntax. These behave like Go's untyped
-	  constants, although raw strings may not span newlines.
-	- The keyword nil, representing an untyped Go nil.
-	- The character '.' (period):
-		.
-	  The result is the value of dot.
-	- A variable name, which is a (possibly empty) alphanumeric string
-	  preceded by a dollar sign, such as
-		$piOver2
-	  or
-		$
-	  The result is the value of the variable.
-	  Variables are described below.
-	- The name of a field of the data, which must be a struct, preceded
-	  by a period, such as
-		.Field
-	  The result is the value of the field. Field invocations may be
-	  chained:
-	    .Field1.Field2
-	  Fields can also be evaluated on variables, including chaining:
-	    $x.Field1.Field2
-	- The name of a key of the data, which must be a map, preceded
-	  by a period, such as
-		.Key
-	  The result is the map element value indexed by the key.
-	  Key invocations may be chained and combined with fields to any
-	  depth:
-	    .Field1.Key1.Field2.Key2
-	  Although the key must be an alphanumeric identifier, unlike with
-	  field names they do not need to start with an upper case letter.
-	  Keys can also be evaluated on variables, including chaining:
-	    $x.key1.key2
-	- The name of a niladic method of the data, preceded by a period,
-	  such as
-		.Method
-	  The result is the value of invoking the method with dot as the
-	  receiver, dot.Method(). Such a method must have one return value (of
-	  any type) or two return values, the second of which is an error.
-	  If it has two and the returned error is non-nil, execution terminates
-	  and an error is returned to the caller as the value of Execute.
-	  Method invocations may be chained and combined with fields and keys
-	  to any depth:
-	    .Field1.Key1.Method1.Field2.Key2.Method2
-	  Methods can also be evaluated on variables, including chaining:
-	    $x.Method1.Field
-	- The name of a niladic function, such as
-		fun
-	  The result is the value of invoking the function, fun(). The return
-	  types and values behave as in methods. Functions and function
-	  names are described below.
-	- A parenthesized instance of one the above, for grouping. The result
-	  may be accessed by a field or map key invocation.
-		print (.F1 arg1) (.F2 arg2)
-		(.StructValuedMethod "arg").Field
-
-Arguments may evaluate to any type; if they are pointers the implementation
-automatically indirects to the base type when required.
-If an evaluation yields a function value, such as a function-valued
-field of a struct, the function is not invoked automatically, but it
-can be used as a truth value for an if action and the like. To invoke
-it, use the call function, defined below.
-
-A pipeline is a possibly chained sequence of "commands". A command is a simple
-value (argument) or a function or method call, possibly with multiple arguments:
-
-	Argument
-		The result is the value of evaluating the argument.
-	.Method [Argument...]
-		The method can be alone or the last element of a chain but,
-		unlike methods in the middle of a chain, it can take arguments.
-		The result is the value of calling the method with the
-		arguments:
-			dot.Method(Argument1, etc.)
-	functionName [Argument...]
-		The result is the value of calling the function associated
-		with the name:
-			function(Argument1, etc.)
-		Functions and function names are described below.
-
-Pipelines
-
-A pipeline may be "chained" by separating a sequence of commands with pipeline
-characters '|'. In a chained pipeline, the result of the each command is
-passed as the last argument of the following command. The output of the final
-command in the pipeline is the value of the pipeline.
-
-The output of a command will be either one value or two values, the second of
-which has type error. If that second value is present and evaluates to
-non-nil, execution terminates and the error is returned to the caller of
-Execute.
-
-Variables
-
-A pipeline inside an action may initialize a variable to capture the result.
-The initialization has syntax
-
-	$variable := pipeline
-
-where $variable is the name of the variable. An action that declares a
-variable produces no output.
-
-If a "range" action initializes a variable, the variable is set to the
-successive elements of the iteration.  Also, a "range" may declare two
-variables, separated by a comma:
-
-	range $index, $element := pipeline
-
-in which case $index and $element are set to the successive values of the
-array/slice index or map key and element, respectively.  Note that if there is
-only one variable, it is assigned the element; this is opposite to the
-convention in Go range clauses.
-
-A variable's scope extends to the "end" action of the control structure ("if",
-"with", or "range") in which it is declared, or to the end of the template if
-there is no such control structure.  A template invocation does not inherit
-variables from the point of its invocation.
-
-When execution begins, $ is set to the data argument passed to Execute, that is,
-to the starting value of dot.
-
-Examples
-
-Here are some example one-line templates demonstrating pipelines and variables.
-All produce the quoted word "output":
-
-	{{"\"output\""}}
-		A string constant.
-	{{`"output"`}}
-		A raw string constant.
-	{{printf "%q" "output"}}
-		A function call.
-	{{"output" | printf "%q"}}
-		A function call whose final argument comes from the previous
-		command.
-	{{printf "%q" (print "out" "put")}}
-		A parenthesized argument.
-	{{"put" | printf "%s%s" "out" | printf "%q"}}
-		A more elaborate call.
-	{{"output" | printf "%s" | printf "%q"}}
-		A longer chain.
-	{{with "output"}}{{printf "%q" .}}{{end}}
-		A with action using dot.
-	{{with $x := "output" | printf "%q"}}{{$x}}{{end}}
-		A with action that creates and uses a variable.
-	{{with $x := "output"}}{{printf "%q" $x}}{{end}}
-		A with action that uses the variable in another action.
-	{{with $x := "output"}}{{$x | printf "%q"}}{{end}}
-		The same, but pipelined.
-
-Functions
-
-During execution functions are found in two function maps: first in the
-template, then in the global function map. By default, no functions are defined
-in the template but the Funcs method can be used to add them.
-
-Predefined global functions are named as follows.
-
-	and
-		Returns the boolean AND of its arguments by returning the
-		first empty argument or the last argument, that is,
-		"and x y" behaves as "if x then y else x". All the
-		arguments are evaluated.
-	call
-		Returns the result of calling the first argument, which
-		must be a function, with the remaining arguments as parameters.
-		Thus "call .X.Y 1 2" is, in Go notation, dot.X.Y(1, 2) where
-		Y is a func-valued field, map entry, or the like.
-		The first argument must be the result of an evaluation
-		that yields a value of function type (as distinct from
-		a predefined function such as print). The function must
-		return either one or two result values, the second of which
-		is of type error. If the arguments don't match the function
-		or the returned error value is non-nil, execution stops.
-	html
-		Returns the escaped HTML equivalent of the textual
-		representation of its arguments.
-	index
-		Returns the result of indexing its first argument by the
-		following arguments. Thus "index x 1 2 3" is, in Go syntax,
-		x[1][2][3]. Each indexed item must be a map, slice, or array.
-	js
-		Returns the escaped JavaScript equivalent of the textual
-		representation of its arguments.
-	len
-		Returns the integer length of its argument.
-	not
-		Returns the boolean negation of its single argument.
-	or
-		Returns the boolean OR of its arguments by returning the
-		first non-empty argument or the last argument, that is,
-		"or x y" behaves as "if x then x else y". All the
-		arguments are evaluated.
-	print
-		An alias for fmt.Sprint
-	printf
-		An alias for fmt.Sprintf
-	println
-		An alias for fmt.Sprintln
-	urlquery
-		Returns the escaped value of the textual representation of
-		its arguments in a form suitable for embedding in a URL query.
-
-The boolean functions take any zero value to be false and a non-zero
-value to be true.
-
-There is also a set of binary comparison operators defined as
-functions:
-
-	eq
-		Returns the boolean truth of arg1 == arg2
-	ne
-		Returns the boolean truth of arg1 != arg2
-	lt
-		Returns the boolean truth of arg1 < arg2
-	le
-		Returns the boolean truth of arg1 <= arg2
-	gt
-		Returns the boolean truth of arg1 > arg2
-	ge
-		Returns the boolean truth of arg1 >= arg2
-
-For simpler multi-way equality tests, eq (only) accepts two or more
-arguments and compares the second and subsequent to the first,
-returning in effect
-
-	arg1==arg2 || arg1==arg3 || arg1==arg4 ...
-
-(Unlike with || in Go, however, eq is a function call and all the
-arguments will be evaluated.)
-
-The comparison functions work on basic types only (or named basic
-types, such as "type Celsius float32"). They implement the Go rules
-for comparison of values, except that size and exact type are
-ignored, so any integer value, signed or unsigned, may be compared
-with any other integer value. (The arithmetic value is compared,
-not the bit pattern, so all negative integers are less than all
-unsigned integers.) However, as usual, one may not compare an int
-with a float32 and so on.
-
-Associated templates
-
-Each template is named by a string specified when it is created. Also, each
-template is associated with zero or more other templates that it may invoke by
-name; such associations are transitive and form a name space of templates.
-
-A template may use a template invocation to instantiate another associated
-template; see the explanation of the "template" action above. The name must be
-that of a template associated with the template that contains the invocation.
-
-Nested template definitions
-
-When parsing a template, another template may be defined and associated with the
-template being parsed. Template definitions must appear at the top level of the
-template, much like global variables in a Go program.
-
-The syntax of such definitions is to surround each template declaration with a
-"define" and "end" action.
-
-The define action names the template being created by providing a string
-constant. Here is a simple example:
-
-	`{{define "T1"}}ONE{{end}}
-	{{define "T2"}}TWO{{end}}
-	{{define "T3"}}{{template "T1"}} {{template "T2"}}{{end}}
-	{{template "T3"}}`
-
-This defines two templates, T1 and T2, and a third T3 that invokes the other two
-when it is executed. Finally it invokes T3. If executed this template will
-produce the text
-
-	ONE TWO
-
-By construction, a template may reside in only one association. If it's
-necessary to have a template addressable from multiple associations, the
-template definition must be parsed multiple times to create distinct *Template
-values, or must be copied with the Clone or AddParseTree method.
-
-Parse may be called multiple times to assemble the various associated templates;
-see the ParseFiles and ParseGlob functions and methods for simple ways to parse
-related templates stored in files.
-
-A template may be executed directly or through ExecuteTemplate, which executes
-an associated template identified by name. To invoke our example above, we
-might write,
-
-	err := tmpl.Execute(os.Stdout, "no data needed")
-	if err != nil {
-		log.Fatalf("execution failed: %s", err)
-	}
-
-or to invoke a particular template explicitly by name,
-
-	err := tmpl.ExecuteTemplate(os.Stdout, "T2", "no data needed")
-	if err != nil {
-		log.Fatalf("execution failed: %s", err)
-	}
-
-*/
-package template
--- a/vendor/github.com/alecthomas/template/exec.go
+++ b/vendor/github.com/alecthomas/template/exec.go
@@ -1,845 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package template
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"reflect"
-	"runtime"
-	"sort"
-	"strings"
-
-	"github.com/alecthomas/template/parse"
-)
-
-// state represents the state of an execution. It's not part of the
-// template so that multiple executions of the same template
-// can execute in parallel.
-type state struct {
-	tmpl *Template
-	wr   io.Writer
-	node parse.Node // current node, for errors
-	vars []variable // push-down stack of variable values.
-}
-
-// variable holds the dynamic value of a variable such as $, $x etc.
-type variable struct {
-	name  string
-	value reflect.Value
-}
-
-// push pushes a new variable on the stack.
-func (s *state) push(name string, value reflect.Value) {
-	s.vars = append(s.vars, variable{name, value})
-}
-
-// mark returns the length of the variable stack.
-func (s *state) mark() int {
-	return len(s.vars)
-}
-
-// pop pops the variable stack up to the mark.
-func (s *state) pop(mark int) {
-	s.vars = s.vars[0:mark]
-}
-
-// setVar overwrites the top-nth variable on the stack. Used by range iterations.
-func (s *state) setVar(n int, value reflect.Value) {
-	s.vars[len(s.vars)-n].value = value
-}
-
-// varValue returns the value of the named variable.
-func (s *state) varValue(name string) reflect.Value {
-	for i := s.mark() - 1; i >= 0; i-- {
-		if s.vars[i].name == name {
-			return s.vars[i].value
-		}
-	}
-	s.errorf("undefined variable: %s", name)
-	return zero
-}
-
-var zero reflect.Value
-
-// at marks the state to be on node n, for error reporting.
-func (s *state) at(node parse.Node) {
-	s.node = node
-}
-
-// doublePercent returns the string with %'s replaced by %%, if necessary,
-// so it can be used safely inside a Printf format string.
-func doublePercent(str string) string {
-	if strings.Contains(str, "%") {
-		str = strings.Replace(str, "%", "%%", -1)
-	}
-	return str
-}
-
-// errorf formats the error and terminates processing.
-func (s *state) errorf(format string, args ...interface{}) {
-	name := doublePercent(s.tmpl.Name())
-	if s.node == nil {
-		format = fmt.Sprintf("template: %s: %s", name, format)
-	} else {
-		location, context := s.tmpl.ErrorContext(s.node)
-		format = fmt.Sprintf("template: %s: executing %q at <%s>: %s", location, name, doublePercent(context), format)
-	}
-	panic(fmt.Errorf(format, args...))
-}
-
-// errRecover is the handler that turns panics into returns from the top
-// level of Parse.
-func errRecover(errp *error) {
-	e := recover()
-	if e != nil {
-		switch err := e.(type) {
-		case runtime.Error:
-			panic(e)
-		case error:
-			*errp = err
-		default:
-			panic(e)
-		}
-	}
-}
-
-// ExecuteTemplate applies the template associated with t that has the given name
-// to the specified data object and writes the output to wr.
-// If an error occurs executing the template or writing its output,
-// execution stops, but partial results may already have been written to
-// the output writer.
-// A template may be executed safely in parallel.
-func (t *Template) ExecuteTemplate(wr io.Writer, name string, data interface{}) error {
-	tmpl := t.tmpl[name]
-	if tmpl == nil {
-		return fmt.Errorf("template: no template %q associated with template %q", name, t.name)
-	}
-	return tmpl.Execute(wr, data)
-}
-
-// Execute applies a parsed template to the specified data object,
-// and writes the output to wr.
-// If an error occurs executing the template or writing its output,
-// execution stops, but partial results may already have been written to
-// the output writer.
-// A template may be executed safely in parallel.
-func (t *Template) Execute(wr io.Writer, data interface{}) (err error) {
-	defer errRecover(&err)
-	value := reflect.ValueOf(data)
-	state := &state{
-		tmpl: t,
-		wr:   wr,
-		vars: []variable{{"$", value}},
-	}
-	t.init()
-	if t.Tree == nil || t.Root == nil {
-		var b bytes.Buffer
-		for name, tmpl := range t.tmpl {
-			if tmpl.Tree == nil || tmpl.Root == nil {
-				continue
-			}
-			if b.Len() > 0 {
-				b.WriteString(", ")
-			}
-			fmt.Fprintf(&b, "%q", name)
-		}
-		var s string
-		if b.Len() > 0 {
-			s = "; defined templates are: " + b.String()
-		}
-		state.errorf("%q is an incomplete or empty template%s", t.Name(), s)
-	}
-	state.walk(value, t.Root)
-	return
-}
-
-// Walk functions step through the major pieces of the template structure,
-// generating output as they go.
-func (s *state) walk(dot reflect.Value, node parse.Node) {
-	s.at(node)
-	switch node := node.(type) {
-	case *parse.ActionNode:
-		// Do not pop variables so they persist until next end.
-		// Also, if the action declares variables, don't print the result.
-		val := s.evalPipeline(dot, node.Pipe)
-		if len(node.Pipe.Decl) == 0 {
-			s.printValue(node, val)
-		}
-	case *parse.IfNode:
-		s.walkIfOrWith(parse.NodeIf, dot, node.Pipe, node.List, node.ElseList)
-	case *parse.ListNode:
-		for _, node := range node.Nodes {
-			s.walk(dot, node)
-		}
-	case *parse.RangeNode:
-		s.walkRange(dot, node)
-	case *parse.TemplateNode:
-		s.walkTemplate(dot, node)
-	case *parse.TextNode:
-		if _, err := s.wr.Write(node.Text); err != nil {
-			s.errorf("%s", err)
-		}
-	case *parse.WithNode:
-		s.walkIfOrWith(parse.NodeWith, dot, node.Pipe, node.List, node.ElseList)
-	default:
-		s.errorf("unknown node: %s", node)
-	}
-}
-
-// walkIfOrWith walks an 'if' or 'with' node. The two control structures
-// are identical in behavior except that 'with' sets dot.
-func (s *state) walkIfOrWith(typ parse.NodeType, dot reflect.Value, pipe *parse.PipeNode, list, elseList *parse.ListNode) {
-	defer s.pop(s.mark())
-	val := s.evalPipeline(dot, pipe)
-	truth, ok := isTrue(val)
-	if !ok {
-		s.errorf("if/with can't use %v", val)
-	}
-	if truth {
-		if typ == parse.NodeWith {
-			s.walk(val, list)
-		} else {
-			s.walk(dot, list)
-		}
-	} else if elseList != nil {
-		s.walk(dot, elseList)
-	}
-}
-
-// isTrue reports whether the value is 'true', in the sense of not the zero of its type,
-// and whether the value has a meaningful truth value.
-func isTrue(val reflect.Value) (truth, ok bool) {
-	if !val.IsValid() {
-		// Something like var x interface{}, never set. It's a form of nil.
-		return false, true
-	}
-	switch val.Kind() {
-	case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
-		truth = val.Len() > 0
-	case reflect.Bool:
-		truth = val.Bool()
-	case reflect.Complex64, reflect.Complex128:
-		truth = val.Complex() != 0
-	case reflect.Chan, reflect.Func, reflect.Ptr, reflect.Interface:
-		truth = !val.IsNil()
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		truth = val.Int() != 0
-	case reflect.Float32, reflect.Float64:
-		truth = val.Float() != 0
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		truth = val.Uint() != 0
-	case reflect.Struct:
-		truth = true // Struct values are always true.
-	default:
-		return
-	}
-	return truth, true
-}
-
-func (s *state) walkRange(dot reflect.Value, r *parse.RangeNode) {
-	s.at(r)
-	defer s.pop(s.mark())
-	val, _ := indirect(s.evalPipeline(dot, r.Pipe))
-	// mark top of stack before any variables in the body are pushed.
-	mark := s.mark()
-	oneIteration := func(index, elem reflect.Value) {
-		// Set top var (lexically the second if there are two) to the element.
-		if len(r.Pipe.Decl) > 0 {
-			s.setVar(1, elem)
-		}
-		// Set next var (lexically the first if there are two) to the index.
-		if len(r.Pipe.Decl) > 1 {
-			s.setVar(2, index)
-		}
-		s.walk(elem, r.List)
-		s.pop(mark)
-	}
-	switch val.Kind() {
-	case reflect.Array, reflect.Slice:
-		if val.Len() == 0 {
-			break
-		}
-		for i := 0; i < val.Len(); i++ {
-			oneIteration(reflect.ValueOf(i), val.Index(i))
-		}
-		return
-	case reflect.Map:
-		if val.Len() == 0 {
-			break
-		}
-		for _, key := range sortKeys(val.MapKeys()) {
-			oneIteration(key, val.MapIndex(key))
-		}
-		return
-	case reflect.Chan:
-		if val.IsNil() {
-			break
-		}
-		i := 0
-		for ; ; i++ {
-			elem, ok := val.Recv()
-			if !ok {
-				break
-			}
-			oneIteration(reflect.ValueOf(i), elem)
-		}
-		if i == 0 {
-			break
-		}
-		return
-	case reflect.Invalid:
-		break // An invalid value is likely a nil map, etc. and acts like an empty map.
-	default:
-		s.errorf("range can't iterate over %v", val)
-	}
-	if r.ElseList != nil {
-		s.walk(dot, r.ElseList)
-	}
-}
-
-func (s *state) walkTemplate(dot reflect.Value, t *parse.TemplateNode) {
-	s.at(t)
-	tmpl := s.tmpl.tmpl[t.Name]
-	if tmpl == nil {
-		s.errorf("template %q not defined", t.Name)
-	}
-	// Variables declared by the pipeline persist.
-	dot = s.evalPipeline(dot, t.Pipe)
-	newState := *s
-	newState.tmpl = tmpl
-	// No dynamic scoping: template invocations inherit no variables.
-	newState.vars = []variable{{"$", dot}}
-	newState.walk(dot, tmpl.Root)
-}
-
-// Eval functions evaluate pipelines, commands, and their elements and extract
-// values from the data structure by examining fields, calling methods, and so on.
-// The printing of those values happens only through walk functions.
-
-// evalPipeline returns the value acquired by evaluating a pipeline. If the
-// pipeline has a variable declaration, the variable will be pushed on the
-// stack. Callers should therefore pop the stack after they are finished
-// executing commands depending on the pipeline value.
-func (s *state) evalPipeline(dot reflect.Value, pipe *parse.PipeNode) (value reflect.Value) {
-	if pipe == nil {
-		return
-	}
-	s.at(pipe)
-	for _, cmd := range pipe.Cmds {
-		value = s.evalCommand(dot, cmd, value) // previous value is this one's final arg.
-		// If the object has type interface{}, dig down one level to the thing inside.
-		if value.Kind() == reflect.Interface && value.Type().NumMethod() == 0 {
-			value = reflect.ValueOf(value.Interface()) // lovely!
-		}
-	}
-	for _, variable := range pipe.Decl {
-		s.push(variable.Ident[0], value)
-	}
-	return value
-}
-
-func (s *state) notAFunction(args []parse.Node, final reflect.Value) {
-	if len(args) > 1 || final.IsValid() {
-		s.errorf("can't give argument to non-function %s", args[0])
-	}
-}
-
-func (s *state) evalCommand(dot reflect.Value, cmd *parse.CommandNode, final reflect.Value) reflect.Value {
-	firstWord := cmd.Args[0]
-	switch n := firstWord.(type) {
-	case *parse.FieldNode:
-		return s.evalFieldNode(dot, n, cmd.Args, final)
-	case *parse.ChainNode:
-		return s.evalChainNode(dot, n, cmd.Args, final)
-	case *parse.IdentifierNode:
-		// Must be a function.
-		return s.evalFunction(dot, n, cmd, cmd.Args, final)
-	case *parse.PipeNode:
-		// Parenthesized pipeline. The arguments are all inside the pipeline; final is ignored.
-		return s.evalPipeline(dot, n)
-	case *parse.VariableNode:
-		return s.evalVariableNode(dot, n, cmd.Args, final)
-	}
-	s.at(firstWord)
-	s.notAFunction(cmd.Args, final)
-	switch word := firstWord.(type) {
-	case *parse.BoolNode:
-		return reflect.ValueOf(word.True)
-	case *parse.DotNode:
-		return dot
-	case *parse.NilNode:
-		s.errorf("nil is not a command")
-	case *parse.NumberNode:
-		return s.idealConstant(word)
-	case *parse.StringNode:
-		return reflect.ValueOf(word.Text)
-	}
-	s.errorf("can't evaluate command %q", firstWord)
-	panic("not reached")
-}
-
-// idealConstant is called to return the value of a number in a context where
-// we don't know the type. In that case, the syntax of the number tells us
-// its type, and we use Go rules to resolve.  Note there is no such thing as
-// a uint ideal constant in this situation - the value must be of int type.
-func (s *state) idealConstant(constant *parse.NumberNode) reflect.Value {
-	// These are ideal constants but we don't know the type
-	// and we have no context.  (If it was a method argument,
-	// we'd know what we need.) The syntax guides us to some extent.
-	s.at(constant)
-	switch {
-	case constant.IsComplex:
-		return reflect.ValueOf(constant.Complex128) // incontrovertible.
-	case constant.IsFloat && !isHexConstant(constant.Text) && strings.IndexAny(constant.Text, ".eE") >= 0:
-		return reflect.ValueOf(constant.Float64)
-	case constant.IsInt:
-		n := int(constant.Int64)
-		if int64(n) != constant.Int64 {
-			s.errorf("%s overflows int", constant.Text)
-		}
-		return reflect.ValueOf(n)
-	case constant.IsUint:
-		s.errorf("%s overflows int", constant.Text)
-	}
-	return zero
-}
-
-func isHexConstant(s string) bool {
-	return len(s) > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')
-}
-
-func (s *state) evalFieldNode(dot reflect.Value, field *parse.FieldNode, args []parse.Node, final reflect.Value) reflect.Value {
-	s.at(field)
-	return s.evalFieldChain(dot, dot, field, field.Ident, args, final)
-}
-
-func (s *state) evalChainNode(dot reflect.Value, chain *parse.ChainNode, args []parse.Node, final reflect.Value) reflect.Value {
-	s.at(chain)
-	// (pipe).Field1.Field2 has pipe as .Node, fields as .Field. Eval the pipeline, then the fields.
-	pipe := s.evalArg(dot, nil, chain.Node)
-	if len(chain.Field) == 0 {
-		s.errorf("internal error: no fields in evalChainNode")
-	}
-	return s.evalFieldChain(dot, pipe, chain, chain.Field, args, final)
-}
-
-func (s *state) evalVariableNode(dot reflect.Value, variable *parse.VariableNode, args []parse.Node, final reflect.Value) reflect.Value {
-	// $x.Field has $x as the first ident, Field as the second. Eval the var, then the fields.
-	s.at(variable)
-	value := s.varValue(variable.Ident[0])
-	if len(variable.Ident) == 1 {
-		s.notAFunction(args, final)
-		return value
-	}
-	return s.evalFieldChain(dot, value, variable, variable.Ident[1:], args, final)
-}
-
-// evalFieldChain evaluates .X.Y.Z possibly followed by arguments.
-// dot is the environment in which to evaluate arguments, while
-// receiver is the value being walked along the chain.
-func (s *state) evalFieldChain(dot, receiver reflect.Value, node parse.Node, ident []string, args []parse.Node, final reflect.Value) reflect.Value {
-	n := len(ident)
-	for i := 0; i < n-1; i++ {
-		receiver = s.evalField(dot, ident[i], node, nil, zero, receiver)
-	}
-	// Now if it's a method, it gets the arguments.
-	return s.evalField(dot, ident[n-1], node, args, final, receiver)
-}
-
-func (s *state) evalFunction(dot reflect.Value, node *parse.IdentifierNode, cmd parse.Node, args []parse.Node, final reflect.Value) reflect.Value {
-	s.at(node)
-	name := node.Ident
-	function, ok := findFunction(name, s.tmpl)
-	if !ok {
-		s.errorf("%q is not a defined function", name)
-	}
-	return s.evalCall(dot, function, cmd, name, args, final)
-}
-
-// evalField evaluates an expression like (.Field) or (.Field arg1 arg2).
-// The 'final' argument represents the return value from the preceding
-// value of the pipeline, if any.
-func (s *state) evalField(dot reflect.Value, fieldName string, node parse.Node, args []parse.Node, final, receiver reflect.Value) reflect.Value {
-	if !receiver.IsValid() {
-		return zero
-	}
-	typ := receiver.Type()
-	receiver, _ = indirect(receiver)
-	// Unless it's an interface, need to get to a value of type *T to guarantee
-	// we see all methods of T and *T.
-	ptr := receiver
-	if ptr.Kind() != reflect.Interface && ptr.CanAddr() {
-		ptr = ptr.Addr()
-	}
-	if method := ptr.MethodByName(fieldName); method.IsValid() {
-		return s.evalCall(dot, method, node, fieldName, args, final)
-	}
-	hasArgs := len(args) > 1 || final.IsValid()
-	// It's not a method; must be a field of a struct or an element of a map. The receiver must not be nil.
-	receiver, isNil := indirect(receiver)
-	if isNil {
-		s.errorf("nil pointer evaluating %s.%s", typ, fieldName)
-	}
-	switch receiver.Kind() {
-	case reflect.Struct:
-		tField, ok := receiver.Type().FieldByName(fieldName)
-		if ok {
-			field := receiver.FieldByIndex(tField.Index)
-			if tField.PkgPath != "" { // field is unexported
-				s.errorf("%s is an unexported field of struct type %s", fieldName, typ)
-			}
-			// If it's a function, we must call it.
-			if hasArgs {
-				s.errorf("%s has arguments but cannot be invoked as function", fieldName)
-			}
-			return field
-		}
-		s.errorf("%s is not a field of struct type %s", fieldName, typ)
-	case reflect.Map:
-		// If it's a map, attempt to use the field name as a key.
-		nameVal := reflect.ValueOf(fieldName)
-		if nameVal.Type().AssignableTo(receiver.Type().Key()) {
-			if hasArgs {
-				s.errorf("%s is not a method but has arguments", fieldName)
-			}
-			return receiver.MapIndex(nameVal)
-		}
-	}
-	s.errorf("can't evaluate field %s in type %s", fieldName, typ)
-	panic("not reached")
-}
-
-var (
-	errorType       = reflect.TypeOf((*error)(nil)).Elem()
-	fmtStringerType = reflect.TypeOf((*fmt.Stringer)(nil)).Elem()
-)
-
-// evalCall executes a function or method call. If it's a method, fun already has the receiver bound, so
-// it looks just like a function call.  The arg list, if non-nil, includes (in the manner of the shell), arg[0]
-// as the function itself.
-func (s *state) evalCall(dot, fun reflect.Value, node parse.Node, name string, args []parse.Node, final reflect.Value) reflect.Value {
-	if args != nil {
-		args = args[1:] // Zeroth arg is function name/node; not passed to function.
-	}
-	typ := fun.Type()
-	numIn := len(args)
-	if final.IsValid() {
-		numIn++
-	}
-	numFixed := len(args)
-	if typ.IsVariadic() {
-		numFixed = typ.NumIn() - 1 // last arg is the variadic one.
-		if numIn < numFixed {
-			s.errorf("wrong number of args for %s: want at least %d got %d", name, typ.NumIn()-1, len(args))
-		}
-	} else if numIn < typ.NumIn()-1 || !typ.IsVariadic() && numIn != typ.NumIn() {
-		s.errorf("wrong number of args for %s: want %d got %d", name, typ.NumIn(), len(args))
-	}
-	if !goodFunc(typ) {
-		// TODO: This could still be a confusing error; maybe goodFunc should provide info.
-		s.errorf("can't call method/function %q with %d results", name, typ.NumOut())
-	}
-	// Build the arg list.
-	argv := make([]reflect.Value, numIn)
-	// Args must be evaluated. Fixed args first.
-	i := 0
-	for ; i < numFixed && i < len(args); i++ {
-		argv[i] = s.evalArg(dot, typ.In(i), args[i])
-	}
-	// Now the ... args.
-	if typ.IsVariadic() {
-		argType := typ.In(typ.NumIn() - 1).Elem() // Argument is a slice.
-		for ; i < len(args); i++ {
-			argv[i] = s.evalArg(dot, argType, args[i])
-		}
-	}
-	// Add final value if necessary.
-	if final.IsValid() {
-		t := typ.In(typ.NumIn() - 1)
-		if typ.IsVariadic() {
-			t = t.Elem()
-		}
-		argv[i] = s.validateType(final, t)
-	}
-	result := fun.Call(argv)
-	// If we have an error that is not nil, stop execution and return that error to the caller.
-	if len(result) == 2 && !result[1].IsNil() {
-		s.at(node)
-		s.errorf("error calling %s: %s", name, result[1].Interface().(error))
-	}
-	return result[0]
-}
-
-// canBeNil reports whether an untyped nil can be assigned to the type. See reflect.Zero.
-func canBeNil(typ reflect.Type) bool {
-	switch typ.Kind() {
-	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
-		return true
-	}
-	return false
-}
-
-// validateType guarantees that the value is valid and assignable to the type.
-func (s *state) validateType(value reflect.Value, typ reflect.Type) reflect.Value {
-	if !value.IsValid() {
-		if typ == nil || canBeNil(typ) {
-			// An untyped nil interface{}. Accept as a proper nil value.
-			return reflect.Zero(typ)
-		}
-		s.errorf("invalid value; expected %s", typ)
-	}
-	if typ != nil && !value.Type().AssignableTo(typ) {
-		if value.Kind() == reflect.Interface && !value.IsNil() {
-			value = value.Elem()
-			if value.Type().AssignableTo(typ) {
-				return value
-			}
-			// fallthrough
-		}
-		// Does one dereference or indirection work? We could do more, as we
-		// do with method receivers, but that gets messy and method receivers
-		// are much more constrained, so it makes more sense there than here.
-		// Besides, one is almost always all you need.
-		switch {
-		case value.Kind() == reflect.Ptr && value.Type().Elem().AssignableTo(typ):
-			value = value.Elem()
-			if !value.IsValid() {
-				s.errorf("dereference of nil pointer of type %s", typ)
-			}
-		case reflect.PtrTo(value.Type()).AssignableTo(typ) && value.CanAddr():
-			value = value.Addr()
-		default:
-			s.errorf("wrong type for value; expected %s; got %s", typ, value.Type())
-		}
-	}
-	return value
-}
-
-func (s *state) evalArg(dot reflect.Value, typ reflect.Type, n parse.Node) reflect.Value {
-	s.at(n)
-	switch arg := n.(type) {
-	case *parse.DotNode:
-		return s.validateType(dot, typ)
-	case *parse.NilNode:
-		if canBeNil(typ) {
-			return reflect.Zero(typ)
-		}
-		s.errorf("cannot assign nil to %s", typ)
-	case *parse.FieldNode:
-		return s.validateType(s.evalFieldNode(dot, arg, []parse.Node{n}, zero), typ)
-	case *parse.VariableNode:
-		return s.validateType(s.evalVariableNode(dot, arg, nil, zero), typ)
-	case *parse.PipeNode:
-		return s.validateType(s.evalPipeline(dot, arg), typ)
-	case *parse.IdentifierNode:
-		return s.evalFunction(dot, arg, arg, nil, zero)
-	case *parse.ChainNode:
-		return s.validateType(s.evalChainNode(dot, arg, nil, zero), typ)
-	}
-	switch typ.Kind() {
-	case reflect.Bool:
-		return s.evalBool(typ, n)
-	case reflect.Complex64, reflect.Complex128:
-		return s.evalComplex(typ, n)
-	case reflect.Float32, reflect.Float64:
-		return s.evalFloat(typ, n)
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return s.evalInteger(typ, n)
-	case reflect.Interface:
-		if typ.NumMethod() == 0 {
-			return s.evalEmptyInterface(dot, n)
-		}
-	case reflect.String:
-		return s.evalString(typ, n)
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return s.evalUnsignedInteger(typ, n)
-	}
-	s.errorf("can't handle %s for arg of type %s", n, typ)
-	panic("not reached")
-}
-
-func (s *state) evalBool(typ reflect.Type, n parse.Node) reflect.Value {
-	s.at(n)
-	if n, ok := n.(*parse.BoolNode); ok {
-		value := reflect.New(typ).Elem()
-		value.SetBool(n.True)
-		return value
-	}
-	s.errorf("expected bool; found %s", n)
-	panic("not reached")
-}
-
-func (s *state) evalString(typ reflect.Type, n parse.Node) reflect.Value {
-	s.at(n)
-	if n, ok := n.(*parse.StringNode); ok {
-		value := reflect.New(typ).Elem()
-		value.SetString(n.Text)
-		return value
-	}
-	s.errorf("expected string; found %s", n)
-	panic("not reached")
-}
-
-func (s *state) evalInteger(typ reflect.Type, n parse.Node) reflect.Value {
-	s.at(n)
-	if n, ok := n.(*parse.NumberNode); ok && n.IsInt {
-		value := reflect.New(typ).Elem()
-		value.SetInt(n.Int64)
-		return value
-	}
-	s.errorf("expected integer; found %s", n)
-	panic("not reached")
-}
-
-func (s *state) evalUnsignedInteger(typ reflect.Type, n parse.Node) reflect.Value {
-	s.at(n)
-	if n, ok := n.(*parse.NumberNode); ok && n.IsUint {
-		value := reflect.New(typ).Elem()
-		value.SetUint(n.Uint64)
-		return value
-	}
-	s.errorf("expected unsigned integer; found %s", n)
-	panic("not reached")
-}
-
-func (s *state) evalFloat(typ reflect.Type, n parse.Node) reflect.Value {
-	s.at(n)
-	if n, ok := n.(*parse.NumberNode); ok && n.IsFloat {
-		value := reflect.New(typ).Elem()
-		value.SetFloat(n.Float64)
-		return value
-	}
-	s.errorf("expected float; found %s", n)
-	panic("not reached")
-}
-
-func (s *state) evalComplex(typ reflect.Type, n parse.Node) reflect.Value {
-	if n, ok := n.(*parse.NumberNode); ok && n.IsComplex {
-		value := reflect.New(typ).Elem()
-		value.SetComplex(n.Complex128)
-		return value
-	}
-	s.errorf("expected complex; found %s", n)
-	panic("not reached")
-}
-
-func (s *state) evalEmptyInterface(dot reflect.Value, n parse.Node) reflect.Value {
-	s.at(n)
-	switch n := n.(type) {
-	case *parse.BoolNode:
-		return reflect.ValueOf(n.True)
-	case *parse.DotNode:
-		return dot
-	case *parse.FieldNode:
-		return s.evalFieldNode(dot, n, nil, zero)
-	case *parse.IdentifierNode:
-		return s.evalFunction(dot, n, n, nil, zero)
-	case *parse.NilNode:
-		// NilNode is handled in evalArg, the only place that calls here.
-		s.errorf("evalEmptyInterface: nil (can't happen)")
-	case *parse.NumberNode:
-		return s.idealConstant(n)
-	case *parse.StringNode:
-		return reflect.ValueOf(n.Text)
-	case *parse.VariableNode:
-		return s.evalVariableNode(dot, n, nil, zero)
-	case *parse.PipeNode:
-		return s.evalPipeline(dot, n)
-	}
-	s.errorf("can't handle assignment of %s to empty interface argument", n)
-	panic("not reached")
-}
-
-// indirect returns the item at the end of indirection, and a bool to indicate if it's nil.
-// We indirect through pointers and empty interfaces (only) because
-// non-empty interfaces have methods we might need.
-func indirect(v reflect.Value) (rv reflect.Value, isNil bool) {
-	for ; v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface; v = v.Elem() {
-		if v.IsNil() {
-			return v, true
-		}
-		if v.Kind() == reflect.Interface && v.NumMethod() > 0 {
-			break
-		}
-	}
-	return v, false
-}
-
-// printValue writes the textual representation of the value to the output of
-// the template.
-func (s *state) printValue(n parse.Node, v reflect.Value) {
-	s.at(n)
-	iface, ok := printableValue(v)
-	if !ok {
-		s.errorf("can't print %s of type %s", n, v.Type())
-	}
-	fmt.Fprint(s.wr, iface)
-}
-
-// printableValue returns the, possibly indirected, interface value inside v that
-// is best for a call to formatted printer.
-func printableValue(v reflect.Value) (interface{}, bool) {
-	if v.Kind() == reflect.Ptr {
-		v, _ = indirect(v) // fmt.Fprint handles nil.
-	}
-	if !v.IsValid() {
-		return "<no value>", true
-	}
-
-	if !v.Type().Implements(errorType) && !v.Type().Implements(fmtStringerType) {
-		if v.CanAddr() && (reflect.PtrTo(v.Type()).Implements(errorType) || reflect.PtrTo(v.Type()).Implements(fmtStringerType)) {
-			v = v.Addr()
-		} else {
-			switch v.Kind() {
-			case reflect.Chan, reflect.Func:
-				return nil, false
-			}
-		}
-	}
-	return v.Interface(), true
-}
-
-// Types to help sort the keys in a map for reproducible output.
-
-type rvs []reflect.Value
-
-func (x rvs) Len() int      { return len(x) }
-func (x rvs) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
-type rvInts struct{ rvs }
-
-func (x rvInts) Less(i, j int) bool { return x.rvs[i].Int() < x.rvs[j].Int() }
-
-type rvUints struct{ rvs }
-
-func (x rvUints) Less(i, j int) bool { return x.rvs[i].Uint() < x.rvs[j].Uint() }
-
-type rvFloats struct{ rvs }
-
-func (x rvFloats) Less(i, j int) bool { return x.rvs[i].Float() < x.rvs[j].Float() }
-
-type rvStrings struct{ rvs }
-
-func (x rvStrings) Less(i, j int) bool { return x.rvs[i].String() < x.rvs[j].String() }
-
-// sortKeys sorts (if it can) the slice of reflect.Values, which is a slice of map keys.
-func sortKeys(v []reflect.Value) []reflect.Value {
-	if len(v) <= 1 {
-		return v
-	}
-	switch v[0].Kind() {
-	case reflect.Float32, reflect.Float64:
-		sort.Sort(rvFloats{v})
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		sort.Sort(rvInts{v})
-	case reflect.String:
-		sort.Sort(rvStrings{v})
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		sort.Sort(rvUints{v})
-	}
-	return v
-}
--- a/vendor/github.com/alecthomas/template/funcs.go
+++ b/vendor/github.com/alecthomas/template/funcs.go
@@ -1,598 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package template
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"net/url"
-	"reflect"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-)
-
-// FuncMap is the type of the map defining the mapping from names to functions.
-// Each function must have either a single return value, or two return values of
-// which the second has type error. In that case, if the second (error)
-// return value evaluates to non-nil during execution, execution terminates and
-// Execute returns that error.
-type FuncMap map[string]interface{}
-
-var builtins = FuncMap{
-	"and":      and,
-	"call":     call,
-	"html":     HTMLEscaper,
-	"index":    index,
-	"js":       JSEscaper,
-	"len":      length,
-	"not":      not,
-	"or":       or,
-	"print":    fmt.Sprint,
-	"printf":   fmt.Sprintf,
-	"println":  fmt.Sprintln,
-	"urlquery": URLQueryEscaper,
-
-	// Comparisons
-	"eq": eq, // ==
-	"ge": ge, // >=
-	"gt": gt, // >
-	"le": le, // <=
-	"lt": lt, // <
-	"ne": ne, // !=
-}
-
-var builtinFuncs = createValueFuncs(builtins)
-
-// createValueFuncs turns a FuncMap into a map[string]reflect.Value
-func createValueFuncs(funcMap FuncMap) map[string]reflect.Value {
-	m := make(map[string]reflect.Value)
-	addValueFuncs(m, funcMap)
-	return m
-}
-
-// addValueFuncs adds to values the functions in funcs, converting them to reflect.Values.
-func addValueFuncs(out map[string]reflect.Value, in FuncMap) {
-	for name, fn := range in {
-		v := reflect.ValueOf(fn)
-		if v.Kind() != reflect.Func {
-			panic("value for " + name + " not a function")
-		}
-		if !goodFunc(v.Type()) {
-			panic(fmt.Errorf("can't install method/function %q with %d results", name, v.Type().NumOut()))
-		}
-		out[name] = v
-	}
-}
-
-// addFuncs adds to values the functions in funcs. It does no checking of the input -
-// call addValueFuncs first.
-func addFuncs(out, in FuncMap) {
-	for name, fn := range in {
-		out[name] = fn
-	}
-}
-
-// goodFunc checks that the function or method has the right result signature.
-func goodFunc(typ reflect.Type) bool {
-	// We allow functions with 1 result or 2 results where the second is an error.
-	switch {
-	case typ.NumOut() == 1:
-		return true
-	case typ.NumOut() == 2 && typ.Out(1) == errorType:
-		return true
-	}
-	return false
-}
-
-// findFunction looks for a function in the template, and global map.
-func findFunction(name string, tmpl *Template) (reflect.Value, bool) {
-	if tmpl != nil && tmpl.common != nil {
-		if fn := tmpl.execFuncs[name]; fn.IsValid() {
-			return fn, true
-		}
-	}
-	if fn := builtinFuncs[name]; fn.IsValid() {
-		return fn, true
-	}
-	return reflect.Value{}, false
-}
-
-// Indexing.
-
-// index returns the result of indexing its first argument by the following
-// arguments.  Thus "index x 1 2 3" is, in Go syntax, x[1][2][3]. Each
-// indexed item must be a map, slice, or array.
-func index(item interface{}, indices ...interface{}) (interface{}, error) {
-	v := reflect.ValueOf(item)
-	for _, i := range indices {
-		index := reflect.ValueOf(i)
-		var isNil bool
-		if v, isNil = indirect(v); isNil {
-			return nil, fmt.Errorf("index of nil pointer")
-		}
-		switch v.Kind() {
-		case reflect.Array, reflect.Slice, reflect.String:
-			var x int64
-			switch index.Kind() {
-			case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-				x = index.Int()
-			case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-				x = int64(index.Uint())
-			default:
-				return nil, fmt.Errorf("cannot index slice/array with type %s", index.Type())
-			}
-			if x < 0 || x >= int64(v.Len()) {
-				return nil, fmt.Errorf("index out of range: %d", x)
-			}
-			v = v.Index(int(x))
-		case reflect.Map:
-			if !index.IsValid() {
-				index = reflect.Zero(v.Type().Key())
-			}
-			if !index.Type().AssignableTo(v.Type().Key()) {
-				return nil, fmt.Errorf("%s is not index type for %s", index.Type(), v.Type())
-			}
-			if x := v.MapIndex(index); x.IsValid() {
-				v = x
-			} else {
-				v = reflect.Zero(v.Type().Elem())
-			}
-		default:
-			return nil, fmt.Errorf("can't index item of type %s", v.Type())
-		}
-	}
-	return v.Interface(), nil
-}
-
-// Length
-
-// length returns the length of the item, with an error if it has no defined length.
-func length(item interface{}) (int, error) {
-	v, isNil := indirect(reflect.ValueOf(item))
-	if isNil {
-		return 0, fmt.Errorf("len of nil pointer")
-	}
-	switch v.Kind() {
-	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String:
-		return v.Len(), nil
-	}
-	return 0, fmt.Errorf("len of type %s", v.Type())
-}
-
-// Function invocation
-
-// call returns the result of evaluating the first argument as a function.
-// The function must return 1 result, or 2 results, the second of which is an error.
-func call(fn interface{}, args ...interface{}) (interface{}, error) {
-	v := reflect.ValueOf(fn)
-	typ := v.Type()
-	if typ.Kind() != reflect.Func {
-		return nil, fmt.Errorf("non-function of type %s", typ)
-	}
-	if !goodFunc(typ) {
-		return nil, fmt.Errorf("function called with %d args; should be 1 or 2", typ.NumOut())
-	}
-	numIn := typ.NumIn()
-	var dddType reflect.Type
-	if typ.IsVariadic() {
-		if len(args) < numIn-1 {
-			return nil, fmt.Errorf("wrong number of args: got %d want at least %d", len(args), numIn-1)
-		}
-		dddType = typ.In(numIn - 1).Elem()
-	} else {
-		if len(args) != numIn {
-			return nil, fmt.Errorf("wrong number of args: got %d want %d", len(args), numIn)
-		}
-	}
-	argv := make([]reflect.Value, len(args))
-	for i, arg := range args {
-		value := reflect.ValueOf(arg)
-		// Compute the expected type. Clumsy because of variadics.
-		var argType reflect.Type
-		if !typ.IsVariadic() || i < numIn-1 {
-			argType = typ.In(i)
-		} else {
-			argType = dddType
-		}
-		if !value.IsValid() && canBeNil(argType) {
-			value = reflect.Zero(argType)
-		}
-		if !value.Type().AssignableTo(argType) {
-			return nil, fmt.Errorf("arg %d has type %s; should be %s", i, value.Type(), argType)
-		}
-		argv[i] = value
-	}
-	result := v.Call(argv)
-	if len(result) == 2 && !result[1].IsNil() {
-		return result[0].Interface(), result[1].Interface().(error)
-	}
-	return result[0].Interface(), nil
-}
-
-// Boolean logic.
-
-func truth(a interface{}) bool {
-	t, _ := isTrue(reflect.ValueOf(a))
-	return t
-}
-
-// and computes the Boolean AND of its arguments, returning
-// the first false argument it encounters, or the last argument.
-func and(arg0 interface{}, args ...interface{}) interface{} {
-	if !truth(arg0) {
-		return arg0
-	}
-	for i := range args {
-		arg0 = args[i]
-		if !truth(arg0) {
-			break
-		}
-	}
-	return arg0
-}
-
-// or computes the Boolean OR of its arguments, returning
-// the first true argument it encounters, or the last argument.
-func or(arg0 interface{}, args ...interface{}) interface{} {
-	if truth(arg0) {
-		return arg0
-	}
-	for i := range args {
-		arg0 = args[i]
-		if truth(arg0) {
-			break
-		}
-	}
-	return arg0
-}
-
-// not returns the Boolean negation of its argument.
-func not(arg interface{}) (truth bool) {
-	truth, _ = isTrue(reflect.ValueOf(arg))
-	return !truth
-}
-
-// Comparison.
-
-// TODO: Perhaps allow comparison between signed and unsigned integers.
-
-var (
-	errBadComparisonType = errors.New("invalid type for comparison")
-	errBadComparison     = errors.New("incompatible types for comparison")
-	errNoComparison      = errors.New("missing argument for comparison")
-)
-
-type kind int
-
-const (
-	invalidKind kind = iota
-	boolKind
-	complexKind
-	intKind
-	floatKind
-	integerKind
-	stringKind
-	uintKind
-)
-
-func basicKind(v reflect.Value) (kind, error) {
-	switch v.Kind() {
-	case reflect.Bool:
-		return boolKind, nil
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		return intKind, nil
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
-		return uintKind, nil
-	case reflect.Float32, reflect.Float64:
-		return floatKind, nil
-	case reflect.Complex64, reflect.Complex128:
-		return complexKind, nil
-	case reflect.String:
-		return stringKind, nil
-	}
-	return invalidKind, errBadComparisonType
-}
-
-// eq evaluates the comparison a == b || a == c || ...
-func eq(arg1 interface{}, arg2 ...interface{}) (bool, error) {
-	v1 := reflect.ValueOf(arg1)
-	k1, err := basicKind(v1)
-	if err != nil {
-		return false, err
-	}
-	if len(arg2) == 0 {
-		return false, errNoComparison
-	}
-	for _, arg := range arg2 {
-		v2 := reflect.ValueOf(arg)
-		k2, err := basicKind(v2)
-		if err != nil {
-			return false, err
-		}
-		truth := false
-		if k1 != k2 {
-			// Special case: Can compare integer values regardless of type's sign.
-			switch {
-			case k1 == intKind && k2 == uintKind:
-				truth = v1.Int() >= 0 && uint64(v1.Int()) == v2.Uint()
-			case k1 == uintKind && k2 == intKind:
-				truth = v2.Int() >= 0 && v1.Uint() == uint64(v2.Int())
-			default:
-				return false, errBadComparison
-			}
-		} else {
-			switch k1 {
-			case boolKind:
-				truth = v1.Bool() == v2.Bool()
-			case complexKind:
-				truth = v1.Complex() == v2.Complex()
-			case floatKind:
-				truth = v1.Float() == v2.Float()
-			case intKind:
-				truth = v1.Int() == v2.Int()
-			case stringKind:
-				truth = v1.String() == v2.String()
-			case uintKind:
-				truth = v1.Uint() == v2.Uint()
-			default:
-				panic("invalid kind")
-			}
-		}
-		if truth {
-			return true, nil
-		}
-	}
-	return false, nil
-}
-
-// ne evaluates the comparison a != b.
-func ne(arg1, arg2 interface{}) (bool, error) {
-	// != is the inverse of ==.
-	equal, err := eq(arg1, arg2)
-	return !equal, err
-}
-
-// lt evaluates the comparison a < b.
-func lt(arg1, arg2 interface{}) (bool, error) {
-	v1 := reflect.ValueOf(arg1)
-	k1, err := basicKind(v1)
-	if err != nil {
-		return false, err
-	}
-	v2 := reflect.ValueOf(arg2)
-	k2, err := basicKind(v2)
-	if err != nil {
-		return false, err
-	}
-	truth := false
-	if k1 != k2 {
-		// Special case: Can compare integer values regardless of type's sign.
-		switch {
-		case k1 == intKind && k2 == uintKind:
-			truth = v1.Int() < 0 || uint64(v1.Int()) < v2.Uint()
-		case k1 == uintKind && k2 == intKind:
-			truth = v2.Int() >= 0 && v1.Uint() < uint64(v2.Int())
-		default:
-			return false, errBadComparison
-		}
-	} else {
-		switch k1 {
-		case boolKind, complexKind:
-			return false, errBadComparisonType
-		case floatKind:
-			truth = v1.Float() < v2.Float()
-		case intKind:
-			truth = v1.Int() < v2.Int()
-		case stringKind:
-			truth = v1.String() < v2.String()
-		case uintKind:
-			truth = v1.Uint() < v2.Uint()
-		default:
-			panic("invalid kind")
-		}
-	}
-	return truth, nil
-}
-
-// le evaluates the comparison <= b.
-func le(arg1, arg2 interface{}) (bool, error) {
-	// <= is < or ==.
-	lessThan, err := lt(arg1, arg2)
-	if lessThan || err != nil {
-		return lessThan, err
-	}
-	return eq(arg1, arg2)
-}
-
-// gt evaluates the comparison a > b.
-func gt(arg1, arg2 interface{}) (bool, error) {
-	// > is the inverse of <=.
-	lessOrEqual, err := le(arg1, arg2)
-	if err != nil {
-		return false, err
-	}
-	return !lessOrEqual, nil
-}
-
-// ge evaluates the comparison a >= b.
-func ge(arg1, arg2 interface{}) (bool, error) {
-	// >= is the inverse of <.
-	lessThan, err := lt(arg1, arg2)
-	if err != nil {
-		return false, err
-	}
-	return !lessThan, nil
-}
-
-// HTML escaping.
-
-var (
-	htmlQuot = []byte("&#34;") // shorter than "&quot;"
-	htmlApos = []byte("&#39;") // shorter than "&apos;" and apos was not in HTML until HTML5
-	htmlAmp  = []byte("&amp;")
-	htmlLt   = []byte("&lt;")
-	htmlGt   = []byte("&gt;")
-)
-
-// HTMLEscape writes to w the escaped HTML equivalent of the plain text data b.
-func HTMLEscape(w io.Writer, b []byte) {
-	last := 0
-	for i, c := range b {
-		var html []byte
-		switch c {
-		case '"':
-			html = htmlQuot
-		case '\'':
-			html = htmlApos
-		case '&':
-			html = htmlAmp
-		case '<':
-			html = htmlLt
-		case '>':
-			html = htmlGt
-		default:
-			continue
-		}
-		w.Write(b[last:i])
-		w.Write(html)
-		last = i + 1
-	}
-	w.Write(b[last:])
-}
-
-// HTMLEscapeString returns the escaped HTML equivalent of the plain text data s.
-func HTMLEscapeString(s string) string {
-	// Avoid allocation if we can.
-	if strings.IndexAny(s, `'"&<>`) < 0 {
-		return s
-	}
-	var b bytes.Buffer
-	HTMLEscape(&b, []byte(s))
-	return b.String()
-}
-
-// HTMLEscaper returns the escaped HTML equivalent of the textual
-// representation of its arguments.
-func HTMLEscaper(args ...interface{}) string {
-	return HTMLEscapeString(evalArgs(args))
-}
-
-// JavaScript escaping.
-
-var (
-	jsLowUni = []byte(`\u00`)
-	hex      = []byte("0123456789ABCDEF")
-
-	jsBackslash = []byte(`\\`)
-	jsApos      = []byte(`\'`)
-	jsQuot      = []byte(`\"`)
-	jsLt        = []byte(`\x3C`)
-	jsGt        = []byte(`\x3E`)
-)
-
-// JSEscape writes to w the escaped JavaScript equivalent of the plain text data b.
-func JSEscape(w io.Writer, b []byte) {
-	last := 0
-	for i := 0; i < len(b); i++ {
-		c := b[i]
-
-		if !jsIsSpecial(rune(c)) {
-			// fast path: nothing to do
-			continue
-		}
-		w.Write(b[last:i])
-
-		if c < utf8.RuneSelf {
-			// Quotes, slashes and angle brackets get quoted.
-			// Control characters get written as \u00XX.
-			switch c {
-			case '\\':
-				w.Write(jsBackslash)
-			case '\'':
-				w.Write(jsApos)
-			case '"':
-				w.Write(jsQuot)
-			case '<':
-				w.Write(jsLt)
-			case '>':
-				w.Write(jsGt)
-			default:
-				w.Write(jsLowUni)
-				t, b := c>>4, c&0x0f
-				w.Write(hex[t : t+1])
-				w.Write(hex[b : b+1])
-			}
-		} else {
-			// Unicode rune.
-			r, size := utf8.DecodeRune(b[i:])
-			if unicode.IsPrint(r) {
-				w.Write(b[i : i+size])
-			} else {
-				fmt.Fprintf(w, "\\u%04X", r)
-			}
-			i += size - 1
-		}
-		last = i + 1
-	}
-	w.Write(b[last:])
-}
-
-// JSEscapeString returns the escaped JavaScript equivalent of the plain text data s.
-func JSEscapeString(s string) string {
-	// Avoid allocation if we can.
-	if strings.IndexFunc(s, jsIsSpecial) < 0 {
-		return s
-	}
-	var b bytes.Buffer
-	JSEscape(&b, []byte(s))
-	return b.String()
-}
-
-func jsIsSpecial(r rune) bool {
-	switch r {
-	case '\\', '\'', '"', '<', '>':
-		return true
-	}
-	return r < ' ' || utf8.RuneSelf <= r
-}
-
-// JSEscaper returns the escaped JavaScript equivalent of the textual
-// representation of its arguments.
-func JSEscaper(args ...interface{}) string {
-	return JSEscapeString(evalArgs(args))
-}
-
-// URLQueryEscaper returns the escaped value of the textual representation of
-// its arguments in a form suitable for embedding in a URL query.
-func URLQueryEscaper(args ...interface{}) string {
-	return url.QueryEscape(evalArgs(args))
-}
-
-// evalArgs formats the list of arguments into a string. It is therefore equivalent to
-//	fmt.Sprint(args...)
-// except that each argument is indirected (if a pointer), as required,
-// using the same rules as the default string evaluation during template
-// execution.
-func evalArgs(args []interface{}) string {
-	ok := false
-	var s string
-	// Fast path for simple common case.
-	if len(args) == 1 {
-		s, ok = args[0].(string)
-	}
-	if !ok {
-		for i, arg := range args {
-			a, ok := printableValue(reflect.ValueOf(arg))
-			if ok {
-				args[i] = a
-			} // else left fmt do its thing
-		}
-		s = fmt.Sprint(args...)
-	}
-	return s
-}
--- a/vendor/github.com/alecthomas/template/go.mod
+++ b/vendor/github.com/alecthomas/template/go.mod
@@ -1 +0,0 @@
-module github.com/alecthomas/template
--- a/vendor/github.com/alecthomas/template/helper.go
+++ b/vendor/github.com/alecthomas/template/helper.go
@@ -1,108 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Helper functions to make constructing templates easier.
-
-package template
-
-import (
-	"fmt"
-	"io/ioutil"
-	"path/filepath"
-)
-
-// Functions and methods to parse templates.
-
-// Must is a helper that wraps a call to a function returning (*Template, error)
-// and panics if the error is non-nil. It is intended for use in variable
-// initializations such as
-//	var t = template.Must(template.New("name").Parse("text"))
-func Must(t *Template, err error) *Template {
-	if err != nil {
-		panic(err)
-	}
-	return t
-}
-
-// ParseFiles creates a new Template and parses the template definitions from
-// the named files. The returned template's name will have the (base) name and
-// (parsed) contents of the first file. There must be at least one file.
-// If an error occurs, parsing stops and the returned *Template is nil.
-func ParseFiles(filenames ...string) (*Template, error) {
-	return parseFiles(nil, filenames...)
-}
-
-// ParseFiles parses the named files and associates the resulting templates with
-// t. If an error occurs, parsing stops and the returned template is nil;
-// otherwise it is t. There must be at least one file.
-func (t *Template) ParseFiles(filenames ...string) (*Template, error) {
-	return parseFiles(t, filenames...)
-}
-
-// parseFiles is the helper for the method and function. If the argument
-// template is nil, it is created from the first file.
-func parseFiles(t *Template, filenames ...string) (*Template, error) {
-	if len(filenames) == 0 {
-		// Not really a problem, but be consistent.
-		return nil, fmt.Errorf("template: no files named in call to ParseFiles")
-	}
-	for _, filename := range filenames {
-		b, err := ioutil.ReadFile(filename)
-		if err != nil {
-			return nil, err
-		}
-		s := string(b)
-		name := filepath.Base(filename)
-		// First template becomes return value if not already defined,
-		// and we use that one for subsequent New calls to associate
-		// all the templates together. Also, if this file has the same name
-		// as t, this file becomes the contents of t, so
-		//  t, err := New(name).Funcs(xxx).ParseFiles(name)
-		// works. Otherwise we create a new template associated with t.
-		var tmpl *Template
-		if t == nil {
-			t = New(name)
-		}
-		if name == t.Name() {
-			tmpl = t
-		} else {
-			tmpl = t.New(name)
-		}
-		_, err = tmpl.Parse(s)
-		if err != nil {
-			return nil, err
-		}
-	}
-	return t, nil
-}
-
-// ParseGlob creates a new Template and parses the template definitions from the
-// files identified by the pattern, which must match at least one file. The
-// returned template will have the (base) name and (parsed) contents of the
-// first file matched by the pattern. ParseGlob is equivalent to calling
-// ParseFiles with the list of files matched by the pattern.
-func ParseGlob(pattern string) (*Template, error) {
-	return parseGlob(nil, pattern)
-}
-
-// ParseGlob parses the template definitions in the files identified by the
-// pattern and associates the resulting templates with t. The pattern is
-// processed by filepath.Glob and must match at least one file. ParseGlob is
-// equivalent to calling t.ParseFiles with the list of files matched by the
-// pattern.
-func (t *Template) ParseGlob(pattern string) (*Template, error) {
-	return parseGlob(t, pattern)
-}
-
-// parseGlob is the implementation of the function and method ParseGlob.
-func parseGlob(t *Template, pattern string) (*Template, error) {
-	filenames, err := filepath.Glob(pattern)
-	if err != nil {
-		return nil, err
-	}
-	if len(filenames) == 0 {
-		return nil, fmt.Errorf("template: pattern matches no files: %#q", pattern)
-	}
-	return parseFiles(t, filenames...)
-}
--- a/vendor/github.com/alecthomas/template/parse/lex.go
+++ b/vendor/github.com/alecthomas/template/parse/lex.go
@@ -1,556 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package parse
-
-import (
-	"fmt"
-	"strings"
-	"unicode"
-	"unicode/utf8"
-)
-
-// item represents a token or text string returned from the scanner.
-type item struct {
-	typ itemType // The type of this item.
-	pos Pos      // The starting position, in bytes, of this item in the input string.
-	val string   // The value of this item.
-}
-
-func (i item) String() string {
-	switch {
-	case i.typ == itemEOF:
-		return "EOF"
-	case i.typ == itemError:
-		return i.val
-	case i.typ > itemKeyword:
-		return fmt.Sprintf("<%s>", i.val)
-	case len(i.val) > 10:
-		return fmt.Sprintf("%.10q...", i.val)
-	}
-	return fmt.Sprintf("%q", i.val)
-}
-
-// itemType identifies the type of lex items.
-type itemType int
-
-const (
-	itemError        itemType = iota // error occurred; value is text of error
-	itemBool                         // boolean constant
-	itemChar                         // printable ASCII character; grab bag for comma etc.
-	itemCharConstant                 // character constant
-	itemComplex                      // complex constant (1+2i); imaginary is just a number
-	itemColonEquals                  // colon-equals (':=') introducing a declaration
-	itemEOF
-	itemField        // alphanumeric identifier starting with '.'
-	itemIdentifier   // alphanumeric identifier not starting with '.'
-	itemLeftDelim    // left action delimiter
-	itemLeftParen    // '(' inside action
-	itemNumber       // simple number, including imaginary
-	itemPipe         // pipe symbol
-	itemRawString    // raw quoted string (includes quotes)
-	itemRightDelim   // right action delimiter
-	itemElideNewline // elide newline after right delim
-	itemRightParen   // ')' inside action
-	itemSpace        // run of spaces separating arguments
-	itemString       // quoted string (includes quotes)
-	itemText         // plain text
-	itemVariable     // variable starting with '$', such as '$' or  '$1' or '$hello'
-	// Keywords appear after all the rest.
-	itemKeyword  // used only to delimit the keywords
-	itemDot      // the cursor, spelled '.'
-	itemDefine   // define keyword
-	itemElse     // else keyword
-	itemEnd      // end keyword
-	itemIf       // if keyword
-	itemNil      // the untyped nil constant, easiest to treat as a keyword
-	itemRange    // range keyword
-	itemTemplate // template keyword
-	itemWith     // with keyword
-)
-
-var key = map[string]itemType{
-	".":        itemDot,
-	"define":   itemDefine,
-	"else":     itemElse,
-	"end":      itemEnd,
-	"if":       itemIf,
-	"range":    itemRange,
-	"nil":      itemNil,
-	"template": itemTemplate,
-	"with":     itemWith,
-}
-
-const eof = -1
-
-// stateFn represents the state of the scanner as a function that returns the next state.
-type stateFn func(*lexer) stateFn
-
-// lexer holds the state of the scanner.
-type lexer struct {
-	name       string    // the name of the input; used only for error reports
-	input      string    // the string being scanned
-	leftDelim  string    // start of action
-	rightDelim string    // end of action
-	state      stateFn   // the next lexing function to enter
-	pos        Pos       // current position in the input
-	start      Pos       // start position of this item
-	width      Pos       // width of last rune read from input
-	lastPos    Pos       // position of most recent item returned by nextItem
-	items      chan item // channel of scanned items
-	parenDepth int       // nesting depth of ( ) exprs
-}
-
-// next returns the next rune in the input.
-func (l *lexer) next() rune {
-	if int(l.pos) >= len(l.input) {
-		l.width = 0
-		return eof
-	}
-	r, w := utf8.DecodeRuneInString(l.input[l.pos:])
-	l.width = Pos(w)
-	l.pos += l.width
-	return r
-}
-
-// peek returns but does not consume the next rune in the input.
-func (l *lexer) peek() rune {
-	r := l.next()
-	l.backup()
-	return r
-}
-
-// backup steps back one rune. Can only be called once per call of next.
-func (l *lexer) backup() {
-	l.pos -= l.width
-}
-
-// emit passes an item back to the client.
-func (l *lexer) emit(t itemType) {
-	l.items <- item{t, l.start, l.input[l.start:l.pos]}
-	l.start = l.pos
-}
-
-// ignore skips over the pending input before this point.
-func (l *lexer) ignore() {
-	l.start = l.pos
-}
-
-// accept consumes the next rune if it's from the valid set.
-func (l *lexer) accept(valid string) bool {
-	if strings.IndexRune(valid, l.next()) >= 0 {
-		return true
-	}
-	l.backup()
-	return false
-}
-
-// acceptRun consumes a run of runes from the valid set.
-func (l *lexer) acceptRun(valid string) {
-	for strings.IndexRune(valid, l.next()) >= 0 {
-	}
-	l.backup()
-}
-
-// lineNumber reports which line we're on, based on the position of
-// the previous item returned by nextItem. Doing it this way
-// means we don't have to worry about peek double counting.
-func (l *lexer) lineNumber() int {
-	return 1 + strings.Count(l.input[:l.lastPos], "\n")
-}
-
-// errorf returns an error token and terminates the scan by passing
-// back a nil pointer that will be the next state, terminating l.nextItem.
-func (l *lexer) errorf(format string, args ...interface{}) stateFn {
-	l.items <- item{itemError, l.start, fmt.Sprintf(format, args...)}
-	return nil
-}
-
-// nextItem returns the next item from the input.
-func (l *lexer) nextItem() item {
-	item := <-l.items
-	l.lastPos = item.pos
-	return item
-}
-
-// lex creates a new scanner for the input string.
-func lex(name, input, left, right string) *lexer {
-	if left == "" {
-		left = leftDelim
-	}
-	if right == "" {
-		right = rightDelim
-	}
-	l := &lexer{
-		name:       name,
-		input:      input,
-		leftDelim:  left,
-		rightDelim: right,
-		items:      make(chan item),
-	}
-	go l.run()
-	return l
-}
-
-// run runs the state machine for the lexer.
-func (l *lexer) run() {
-	for l.state = lexText; l.state != nil; {
-		l.state = l.state(l)
-	}
-}
-
-// state functions
-
-const (
-	leftDelim    = "{{"
-	rightDelim   = "}}"
-	leftComment  = "/*"
-	rightComment = "*/"
-)
-
-// lexText scans until an opening action delimiter, "{{".
-func lexText(l *lexer) stateFn {
-	for {
-		if strings.HasPrefix(l.input[l.pos:], l.leftDelim) {
-			if l.pos > l.start {
-				l.emit(itemText)
-			}
-			return lexLeftDelim
-		}
-		if l.next() == eof {
-			break
-		}
-	}
-	// Correctly reached EOF.
-	if l.pos > l.start {
-		l.emit(itemText)
-	}
-	l.emit(itemEOF)
-	return nil
-}
-
-// lexLeftDelim scans the left delimiter, which is known to be present.
-func lexLeftDelim(l *lexer) stateFn {
-	l.pos += Pos(len(l.leftDelim))
-	if strings.HasPrefix(l.input[l.pos:], leftComment) {
-		return lexComment
-	}
-	l.emit(itemLeftDelim)
-	l.parenDepth = 0
-	return lexInsideAction
-}
-
-// lexComment scans a comment. The left comment marker is known to be present.
-func lexComment(l *lexer) stateFn {
-	l.pos += Pos(len(leftComment))
-	i := strings.Index(l.input[l.pos:], rightComment)
-	if i < 0 {
-		return l.errorf("unclosed comment")
-	}
-	l.pos += Pos(i + len(rightComment))
-	if !strings.HasPrefix(l.input[l.pos:], l.rightDelim) {
-		return l.errorf("comment ends before closing delimiter")
-
-	}
-	l.pos += Pos(len(l.rightDelim))
-	l.ignore()
-	return lexText
-}
-
-// lexRightDelim scans the right delimiter, which is known to be present.
-func lexRightDelim(l *lexer) stateFn {
-	l.pos += Pos(len(l.rightDelim))
-	l.emit(itemRightDelim)
-	if l.peek() == '\\' {
-		l.pos++
-		l.emit(itemElideNewline)
-	}
-	return lexText
-}
-
-// lexInsideAction scans the elements inside action delimiters.
-func lexInsideAction(l *lexer) stateFn {
-	// Either number, quoted string, or identifier.
-	// Spaces separate arguments; runs of spaces turn into itemSpace.
-	// Pipe symbols separate and are emitted.
-	if strings.HasPrefix(l.input[l.pos:], l.rightDelim+"\\") || strings.HasPrefix(l.input[l.pos:], l.rightDelim) {
-		if l.parenDepth == 0 {
-			return lexRightDelim
-		}
-		return l.errorf("unclosed left paren")
-	}
-	switch r := l.next(); {
-	case r == eof || isEndOfLine(r):
-		return l.errorf("unclosed action")
-	case isSpace(r):
-		return lexSpace
-	case r == ':':
-		if l.next() != '=' {
-			return l.errorf("expected :=")
-		}
-		l.emit(itemColonEquals)
-	case r == '|':
-		l.emit(itemPipe)
-	case r == '"':
-		return lexQuote
-	case r == '`':
-		return lexRawQuote
-	case r == '$':
-		return lexVariable
-	case r == '\'':
-		return lexChar
-	case r == '.':
-		// special look-ahead for ".field" so we don't break l.backup().
-		if l.pos < Pos(len(l.input)) {
-			r := l.input[l.pos]
-			if r < '0' || '9' < r {
-				return lexField
-			}
-		}
-		fallthrough // '.' can start a number.
-	case r == '+' || r == '-' || ('0' <= r && r <= '9'):
-		l.backup()
-		return lexNumber
-	case isAlphaNumeric(r):
-		l.backup()
-		return lexIdentifier
-	case r == '(':
-		l.emit(itemLeftParen)
-		l.parenDepth++
-		return lexInsideAction
-	case r == ')':
-		l.emit(itemRightParen)
-		l.parenDepth--
-		if l.parenDepth < 0 {
-			return l.errorf("unexpected right paren %#U", r)
-		}
-		return lexInsideAction
-	case r <= unicode.MaxASCII && unicode.IsPrint(r):
-		l.emit(itemChar)
-		return lexInsideAction
-	default:
-		return l.errorf("unrecognized character in action: %#U", r)
-	}
-	return lexInsideAction
-}
-
-// lexSpace scans a run of space characters.
-// One space has already been seen.
-func lexSpace(l *lexer) stateFn {
-	for isSpace(l.peek()) {
-		l.next()
-	}
-	l.emit(itemSpace)
-	return lexInsideAction
-}
-
-// lexIdentifier scans an alphanumeric.
-func lexIdentifier(l *lexer) stateFn {
-Loop:
-	for {
-		switch r := l.next(); {
-		case isAlphaNumeric(r):
-			// absorb.
-		default:
-			l.backup()
-			word := l.input[l.start:l.pos]
-			if !l.atTerminator() {
-				return l.errorf("bad character %#U", r)
-			}
-			switch {
-			case key[word] > itemKeyword:
-				l.emit(key[word])
-			case word[0] == '.':
-				l.emit(itemField)
-			case word == "true", word == "false":
-				l.emit(itemBool)
-			default:
-				l.emit(itemIdentifier)
-			}
-			break Loop
-		}
-	}
-	return lexInsideAction
-}
-
-// lexField scans a field: .Alphanumeric.
-// The . has been scanned.
-func lexField(l *lexer) stateFn {
-	return lexFieldOrVariable(l, itemField)
-}
-
-// lexVariable scans a Variable: $Alphanumeric.
-// The $ has been scanned.
-func lexVariable(l *lexer) stateFn {
-	if l.atTerminator() { // Nothing interesting follows -> "$".
-		l.emit(itemVariable)
-		return lexInsideAction
-	}
-	return lexFieldOrVariable(l, itemVariable)
-}
-
-// lexVariable scans a field or variable: [.$]Alphanumeric.
-// The . or $ has been scanned.
-func lexFieldOrVariable(l *lexer, typ itemType) stateFn {
-	if l.atTerminator() { // Nothing interesting follows -> "." or "$".
-		if typ == itemVariable {
-			l.emit(itemVariable)
-		} else {
-			l.emit(itemDot)
-		}
-		return lexInsideAction
-	}
-	var r rune
-	for {
-		r = l.next()
-		if !isAlphaNumeric(r) {
-			l.backup()
-			break
-		}
-	}
-	if !l.atTerminator() {
-		return l.errorf("bad character %#U", r)
-	}
-	l.emit(typ)
-	return lexInsideAction
-}
-
-// atTerminator reports whether the input is at valid termination character to
-// appear after an identifier. Breaks .X.Y into two pieces. Also catches cases
-// like "$x+2" not being acceptable without a space, in case we decide one
-// day to implement arithmetic.
-func (l *lexer) atTerminator() bool {
-	r := l.peek()
-	if isSpace(r) || isEndOfLine(r) {
-		return true
-	}
-	switch r {
-	case eof, '.', ',', '|', ':', ')', '(':
-		return true
-	}
-	// Does r start the delimiter? This can be ambiguous (with delim=="//", $x/2 will
-	// succeed but should fail) but only in extremely rare cases caused by willfully
-	// bad choice of delimiter.
-	if rd, _ := utf8.DecodeRuneInString(l.rightDelim); rd == r {
-		return true
-	}
-	return false
-}
-
-// lexChar scans a character constant. The initial quote is already
-// scanned. Syntax checking is done by the parser.
-func lexChar(l *lexer) stateFn {
-Loop:
-	for {
-		switch l.next() {
-		case '\\':
-			if r := l.next(); r != eof && r != '\n' {
-				break
-			}
-			fallthrough
-		case eof, '\n':
-			return l.errorf("unterminated character constant")
-		case '\'':
-			break Loop
-		}
-	}
-	l.emit(itemCharConstant)
-	return lexInsideAction
-}
-
-// lexNumber scans a number: decimal, octal, hex, float, or imaginary. This
-// isn't a perfect number scanner - for instance it accepts "." and "0x0.2"
-// and "089" - but when it's wrong the input is invalid and the parser (via
-// strconv) will notice.
-func lexNumber(l *lexer) stateFn {
-	if !l.scanNumber() {
-		return l.errorf("bad number syntax: %q", l.input[l.start:l.pos])
-	}
-	if sign := l.peek(); sign == '+' || sign == '-' {
-		// Complex: 1+2i. No spaces, must end in 'i'.
-		if !l.scanNumber() || l.input[l.pos-1] != 'i' {
-			return l.errorf("bad number syntax: %q", l.input[l.start:l.pos])
-		}
-		l.emit(itemComplex)
-	} else {
-		l.emit(itemNumber)
-	}
-	return lexInsideAction
-}
-
-func (l *lexer) scanNumber() bool {
-	// Optional leading sign.
-	l.accept("+-")
-	// Is it hex?
-	digits := "0123456789"
-	if l.accept("0") && l.accept("xX") {
-		digits = "0123456789abcdefABCDEF"
-	}
-	l.acceptRun(digits)
-	if l.accept(".") {
-		l.acceptRun(digits)
-	}
-	if l.accept("eE") {
-		l.accept("+-")
-		l.acceptRun("0123456789")
-	}
-	// Is it imaginary?
-	l.accept("i")
-	// Next thing mustn't be alphanumeric.
-	if isAlphaNumeric(l.peek()) {
-		l.next()
-		return false
-	}
-	return true
-}
-
-// lexQuote scans a quoted string.
-func lexQuote(l *lexer) stateFn {
-Loop:
-	for {
-		switch l.next() {
-		case '\\':
-			if r := l.next(); r != eof && r != '\n' {
-				break
-			}
-			fallthrough
-		case eof, '\n':
-			return l.errorf("unterminated quoted string")
-		case '"':
-			break Loop
-		}
-	}
-	l.emit(itemString)
-	return lexInsideAction
-}
-
-// lexRawQuote scans a raw quoted string.
-func lexRawQuote(l *lexer) stateFn {
-Loop:
-	for {
-		switch l.next() {
-		case eof, '\n':
-			return l.errorf("unterminated raw quoted string")
-		case '`':
-			break Loop
-		}
-	}
-	l.emit(itemRawString)
-	return lexInsideAction
-}
-
-// isSpace reports whether r is a space character.
-func isSpace(r rune) bool {
-	return r == ' ' || r == '\t'
-}
-
-// isEndOfLine reports whether r is an end-of-line character.
-func isEndOfLine(r rune) bool {
-	return r == '\r' || r == '\n'
-}
-
-// isAlphaNumeric reports whether r is an alphabetic, digit, or underscore.
-func isAlphaNumeric(r rune) bool {
-	return r == '_' || unicode.IsLetter(r) || unicode.IsDigit(r)
-}
--- a/vendor/github.com/alecthomas/template/parse/node.go
+++ b/vendor/github.com/alecthomas/template/parse/node.go
@@ -1,834 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Parse nodes.
-
-package parse
-
-import (
-	"bytes"
-	"fmt"
-	"strconv"
-	"strings"
-)
-
-var textFormat = "%s" // Changed to "%q" in tests for better error messages.
-
-// A Node is an element in the parse tree. The interface is trivial.
-// The interface contains an unexported method so that only
-// types local to this package can satisfy it.
-type Node interface {
-	Type() NodeType
-	String() string
-	// Copy does a deep copy of the Node and all its components.
-	// To avoid type assertions, some XxxNodes also have specialized
-	// CopyXxx methods that return *XxxNode.
-	Copy() Node
-	Position() Pos // byte position of start of node in full original input string
-	// tree returns the containing *Tree.
-	// It is unexported so all implementations of Node are in this package.
-	tree() *Tree
-}
-
-// NodeType identifies the type of a parse tree node.
-type NodeType int
-
-// Pos represents a byte position in the original input text from which
-// this template was parsed.
-type Pos int
-
-func (p Pos) Position() Pos {
-	return p
-}
-
-// Type returns itself and provides an easy default implementation
-// for embedding in a Node. Embedded in all non-trivial Nodes.
-func (t NodeType) Type() NodeType {
-	return t
-}
-
-const (
-	NodeText       NodeType = iota // Plain text.
-	NodeAction                     // A non-control action such as a field evaluation.
-	NodeBool                       // A boolean constant.
-	NodeChain                      // A sequence of field accesses.
-	NodeCommand                    // An element of a pipeline.
-	NodeDot                        // The cursor, dot.
-	nodeElse                       // An else action. Not added to tree.
-	nodeEnd                        // An end action. Not added to tree.
-	NodeField                      // A field or method name.
-	NodeIdentifier                 // An identifier; always a function name.
-	NodeIf                         // An if action.
-	NodeList                       // A list of Nodes.
-	NodeNil                        // An untyped nil constant.
-	NodeNumber                     // A numerical constant.
-	NodePipe                       // A pipeline of commands.
-	NodeRange                      // A range action.
-	NodeString                     // A string constant.
-	NodeTemplate                   // A template invocation action.
-	NodeVariable                   // A $ variable.
-	NodeWith                       // A with action.
-)
-
-// Nodes.
-
-// ListNode holds a sequence of nodes.
-type ListNode struct {
-	NodeType
-	Pos
-	tr    *Tree
-	Nodes []Node // The element nodes in lexical order.
-}
-
-func (t *Tree) newList(pos Pos) *ListNode {
-	return &ListNode{tr: t, NodeType: NodeList, Pos: pos}
-}
-
-func (l *ListNode) append(n Node) {
-	l.Nodes = append(l.Nodes, n)
-}
-
-func (l *ListNode) tree() *Tree {
-	return l.tr
-}
-
-func (l *ListNode) String() string {
-	b := new(bytes.Buffer)
-	for _, n := range l.Nodes {
-		fmt.Fprint(b, n)
-	}
-	return b.String()
-}
-
-func (l *ListNode) CopyList() *ListNode {
-	if l == nil {
-		return l
-	}
-	n := l.tr.newList(l.Pos)
-	for _, elem := range l.Nodes {
-		n.append(elem.Copy())
-	}
-	return n
-}
-
-func (l *ListNode) Copy() Node {
-	return l.CopyList()
-}
-
-// TextNode holds plain text.
-type TextNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	Text []byte // The text; may span newlines.
-}
-
-func (t *Tree) newText(pos Pos, text string) *TextNode {
-	return &TextNode{tr: t, NodeType: NodeText, Pos: pos, Text: []byte(text)}
-}
-
-func (t *TextNode) String() string {
-	return fmt.Sprintf(textFormat, t.Text)
-}
-
-func (t *TextNode) tree() *Tree {
-	return t.tr
-}
-
-func (t *TextNode) Copy() Node {
-	return &TextNode{tr: t.tr, NodeType: NodeText, Pos: t.Pos, Text: append([]byte{}, t.Text...)}
-}
-
-// PipeNode holds a pipeline with optional declaration
-type PipeNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	Line int             // The line number in the input (deprecated; kept for compatibility)
-	Decl []*VariableNode // Variable declarations in lexical order.
-	Cmds []*CommandNode  // The commands in lexical order.
-}
-
-func (t *Tree) newPipeline(pos Pos, line int, decl []*VariableNode) *PipeNode {
-	return &PipeNode{tr: t, NodeType: NodePipe, Pos: pos, Line: line, Decl: decl}
-}
-
-func (p *PipeNode) append(command *CommandNode) {
-	p.Cmds = append(p.Cmds, command)
-}
-
-func (p *PipeNode) String() string {
-	s := ""
-	if len(p.Decl) > 0 {
-		for i, v := range p.Decl {
-			if i > 0 {
-				s += ", "
-			}
-			s += v.String()
-		}
-		s += " := "
-	}
-	for i, c := range p.Cmds {
-		if i > 0 {
-			s += " | "
-		}
-		s += c.String()
-	}
-	return s
-}
-
-func (p *PipeNode) tree() *Tree {
-	return p.tr
-}
-
-func (p *PipeNode) CopyPipe() *PipeNode {
-	if p == nil {
-		return p
-	}
-	var decl []*VariableNode
-	for _, d := range p.Decl {
-		decl = append(decl, d.Copy().(*VariableNode))
-	}
-	n := p.tr.newPipeline(p.Pos, p.Line, decl)
-	for _, c := range p.Cmds {
-		n.append(c.Copy().(*CommandNode))
-	}
-	return n
-}
-
-func (p *PipeNode) Copy() Node {
-	return p.CopyPipe()
-}
-
-// ActionNode holds an action (something bounded by delimiters).
-// Control actions have their own nodes; ActionNode represents simple
-// ones such as field evaluations and parenthesized pipelines.
-type ActionNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	Line int       // The line number in the input (deprecated; kept for compatibility)
-	Pipe *PipeNode // The pipeline in the action.
-}
-
-func (t *Tree) newAction(pos Pos, line int, pipe *PipeNode) *ActionNode {
-	return &ActionNode{tr: t, NodeType: NodeAction, Pos: pos, Line: line, Pipe: pipe}
-}
-
-func (a *ActionNode) String() string {
-	return fmt.Sprintf("{{%s}}", a.Pipe)
-
-}
-
-func (a *ActionNode) tree() *Tree {
-	return a.tr
-}
-
-func (a *ActionNode) Copy() Node {
-	return a.tr.newAction(a.Pos, a.Line, a.Pipe.CopyPipe())
-
-}
-
-// CommandNode holds a command (a pipeline inside an evaluating action).
-type CommandNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	Args []Node // Arguments in lexical order: Identifier, field, or constant.
-}
-
-func (t *Tree) newCommand(pos Pos) *CommandNode {
-	return &CommandNode{tr: t, NodeType: NodeCommand, Pos: pos}
-}
-
-func (c *CommandNode) append(arg Node) {
-	c.Args = append(c.Args, arg)
-}
-
-func (c *CommandNode) String() string {
-	s := ""
-	for i, arg := range c.Args {
-		if i > 0 {
-			s += " "
-		}
-		if arg, ok := arg.(*PipeNode); ok {
-			s += "(" + arg.String() + ")"
-			continue
-		}
-		s += arg.String()
-	}
-	return s
-}
-
-func (c *CommandNode) tree() *Tree {
-	return c.tr
-}
-
-func (c *CommandNode) Copy() Node {
-	if c == nil {
-		return c
-	}
-	n := c.tr.newCommand(c.Pos)
-	for _, c := range c.Args {
-		n.append(c.Copy())
-	}
-	return n
-}
-
-// IdentifierNode holds an identifier.
-type IdentifierNode struct {
-	NodeType
-	Pos
-	tr    *Tree
-	Ident string // The identifier's name.
-}
-
-// NewIdentifier returns a new IdentifierNode with the given identifier name.
-func NewIdentifier(ident string) *IdentifierNode {
-	return &IdentifierNode{NodeType: NodeIdentifier, Ident: ident}
-}
-
-// SetPos sets the position. NewIdentifier is a public method so we can't modify its signature.
-// Chained for convenience.
-// TODO: fix one day?
-func (i *IdentifierNode) SetPos(pos Pos) *IdentifierNode {
-	i.Pos = pos
-	return i
-}
-
-// SetTree sets the parent tree for the node. NewIdentifier is a public method so we can't modify its signature.
-// Chained for convenience.
-// TODO: fix one day?
-func (i *IdentifierNode) SetTree(t *Tree) *IdentifierNode {
-	i.tr = t
-	return i
-}
-
-func (i *IdentifierNode) String() string {
-	return i.Ident
-}
-
-func (i *IdentifierNode) tree() *Tree {
-	return i.tr
-}
-
-func (i *IdentifierNode) Copy() Node {
-	return NewIdentifier(i.Ident).SetTree(i.tr).SetPos(i.Pos)
-}
-
-// VariableNode holds a list of variable names, possibly with chained field
-// accesses. The dollar sign is part of the (first) name.
-type VariableNode struct {
-	NodeType
-	Pos
-	tr    *Tree
-	Ident []string // Variable name and fields in lexical order.
-}
-
-func (t *Tree) newVariable(pos Pos, ident string) *VariableNode {
-	return &VariableNode{tr: t, NodeType: NodeVariable, Pos: pos, Ident: strings.Split(ident, ".")}
-}
-
-func (v *VariableNode) String() string {
-	s := ""
-	for i, id := range v.Ident {
-		if i > 0 {
-			s += "."
-		}
-		s += id
-	}
-	return s
-}
-
-func (v *VariableNode) tree() *Tree {
-	return v.tr
-}
-
-func (v *VariableNode) Copy() Node {
-	return &VariableNode{tr: v.tr, NodeType: NodeVariable, Pos: v.Pos, Ident: append([]string{}, v.Ident...)}
-}
-
-// DotNode holds the special identifier '.'.
-type DotNode struct {
-	NodeType
-	Pos
-	tr *Tree
-}
-
-func (t *Tree) newDot(pos Pos) *DotNode {
-	return &DotNode{tr: t, NodeType: NodeDot, Pos: pos}
-}
-
-func (d *DotNode) Type() NodeType {
-	// Override method on embedded NodeType for API compatibility.
-	// TODO: Not really a problem; could change API without effect but
-	// api tool complains.
-	return NodeDot
-}
-
-func (d *DotNode) String() string {
-	return "."
-}
-
-func (d *DotNode) tree() *Tree {
-	return d.tr
-}
-
-func (d *DotNode) Copy() Node {
-	return d.tr.newDot(d.Pos)
-}
-
-// NilNode holds the special identifier 'nil' representing an untyped nil constant.
-type NilNode struct {
-	NodeType
-	Pos
-	tr *Tree
-}
-
-func (t *Tree) newNil(pos Pos) *NilNode {
-	return &NilNode{tr: t, NodeType: NodeNil, Pos: pos}
-}
-
-func (n *NilNode) Type() NodeType {
-	// Override method on embedded NodeType for API compatibility.
-	// TODO: Not really a problem; could change API without effect but
-	// api tool complains.
-	return NodeNil
-}
-
-func (n *NilNode) String() string {
-	return "nil"
-}
-
-func (n *NilNode) tree() *Tree {
-	return n.tr
-}
-
-func (n *NilNode) Copy() Node {
-	return n.tr.newNil(n.Pos)
-}
-
-// FieldNode holds a field (identifier starting with '.').
-// The names may be chained ('.x.y').
-// The period is dropped from each ident.
-type FieldNode struct {
-	NodeType
-	Pos
-	tr    *Tree
-	Ident []string // The identifiers in lexical order.
-}
-
-func (t *Tree) newField(pos Pos, ident string) *FieldNode {
-	return &FieldNode{tr: t, NodeType: NodeField, Pos: pos, Ident: strings.Split(ident[1:], ".")} // [1:] to drop leading period
-}
-
-func (f *FieldNode) String() string {
-	s := ""
-	for _, id := range f.Ident {
-		s += "." + id
-	}
-	return s
-}
-
-func (f *FieldNode) tree() *Tree {
-	return f.tr
-}
-
-func (f *FieldNode) Copy() Node {
-	return &FieldNode{tr: f.tr, NodeType: NodeField, Pos: f.Pos, Ident: append([]string{}, f.Ident...)}
-}
-
-// ChainNode holds a term followed by a chain of field accesses (identifier starting with '.').
-// The names may be chained ('.x.y').
-// The periods are dropped from each ident.
-type ChainNode struct {
-	NodeType
-	Pos
-	tr    *Tree
-	Node  Node
-	Field []string // The identifiers in lexical order.
-}
-
-func (t *Tree) newChain(pos Pos, node Node) *ChainNode {
-	return &ChainNode{tr: t, NodeType: NodeChain, Pos: pos, Node: node}
-}
-
-// Add adds the named field (which should start with a period) to the end of the chain.
-func (c *ChainNode) Add(field string) {
-	if len(field) == 0 || field[0] != '.' {
-		panic("no dot in field")
-	}
-	field = field[1:] // Remove leading dot.
-	if field == "" {
-		panic("empty field")
-	}
-	c.Field = append(c.Field, field)
-}
-
-func (c *ChainNode) String() string {
-	s := c.Node.String()
-	if _, ok := c.Node.(*PipeNode); ok {
-		s = "(" + s + ")"
-	}
-	for _, field := range c.Field {
-		s += "." + field
-	}
-	return s
-}
-
-func (c *ChainNode) tree() *Tree {
-	return c.tr
-}
-
-func (c *ChainNode) Copy() Node {
-	return &ChainNode{tr: c.tr, NodeType: NodeChain, Pos: c.Pos, Node: c.Node, Field: append([]string{}, c.Field...)}
-}
-
-// BoolNode holds a boolean constant.
-type BoolNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	True bool // The value of the boolean constant.
-}
-
-func (t *Tree) newBool(pos Pos, true bool) *BoolNode {
-	return &BoolNode{tr: t, NodeType: NodeBool, Pos: pos, True: true}
-}
-
-func (b *BoolNode) String() string {
-	if b.True {
-		return "true"
-	}
-	return "false"
-}
-
-func (b *BoolNode) tree() *Tree {
-	return b.tr
-}
-
-func (b *BoolNode) Copy() Node {
-	return b.tr.newBool(b.Pos, b.True)
-}
-
-// NumberNode holds a number: signed or unsigned integer, float, or complex.
-// The value is parsed and stored under all the types that can represent the value.
-// This simulates in a small amount of code the behavior of Go's ideal constants.
-type NumberNode struct {
-	NodeType
-	Pos
-	tr         *Tree
-	IsInt      bool       // Number has an integral value.
-	IsUint     bool       // Number has an unsigned integral value.
-	IsFloat    bool       // Number has a floating-point value.
-	IsComplex  bool       // Number is complex.
-	Int64      int64      // The signed integer value.
-	Uint64     uint64     // The unsigned integer value.
-	Float64    float64    // The floating-point value.
-	Complex128 complex128 // The complex value.
-	Text       string     // The original textual representation from the input.
-}
-
-func (t *Tree) newNumber(pos Pos, text string, typ itemType) (*NumberNode, error) {
-	n := &NumberNode{tr: t, NodeType: NodeNumber, Pos: pos, Text: text}
-	switch typ {
-	case itemCharConstant:
-		rune, _, tail, err := strconv.UnquoteChar(text[1:], text[0])
-		if err != nil {
-			return nil, err
-		}
-		if tail != "'" {
-			return nil, fmt.Errorf("malformed character constant: %s", text)
-		}
-		n.Int64 = int64(rune)
-		n.IsInt = true
-		n.Uint64 = uint64(rune)
-		n.IsUint = true
-		n.Float64 = float64(rune) // odd but those are the rules.
-		n.IsFloat = true
-		return n, nil
-	case itemComplex:
-		// fmt.Sscan can parse the pair, so let it do the work.
-		if _, err := fmt.Sscan(text, &n.Complex128); err != nil {
-			return nil, err
-		}
-		n.IsComplex = true
-		n.simplifyComplex()
-		return n, nil
-	}
-	// Imaginary constants can only be complex unless they are zero.
-	if len(text) > 0 && text[len(text)-1] == 'i' {
-		f, err := strconv.ParseFloat(text[:len(text)-1], 64)
-		if err == nil {
-			n.IsComplex = true
-			n.Complex128 = complex(0, f)
-			n.simplifyComplex()
-			return n, nil
-		}
-	}
-	// Do integer test first so we get 0x123 etc.
-	u, err := strconv.ParseUint(text, 0, 64) // will fail for -0; fixed below.
-	if err == nil {
-		n.IsUint = true
-		n.Uint64 = u
-	}
-	i, err := strconv.ParseInt(text, 0, 64)
-	if err == nil {
-		n.IsInt = true
-		n.Int64 = i
-		if i == 0 {
-			n.IsUint = true // in case of -0.
-			n.Uint64 = u
-		}
-	}
-	// If an integer extraction succeeded, promote the float.
-	if n.IsInt {
-		n.IsFloat = true
-		n.Float64 = float64(n.Int64)
-	} else if n.IsUint {
-		n.IsFloat = true
-		n.Float64 = float64(n.Uint64)
-	} else {
-		f, err := strconv.ParseFloat(text, 64)
-		if err == nil {
-			n.IsFloat = true
-			n.Float64 = f
-			// If a floating-point extraction succeeded, extract the int if needed.
-			if !n.IsInt && float64(int64(f)) == f {
-				n.IsInt = true
-				n.Int64 = int64(f)
-			}
-			if !n.IsUint && float64(uint64(f)) == f {
-				n.IsUint = true
-				n.Uint64 = uint64(f)
-			}
-		}
-	}
-	if !n.IsInt && !n.IsUint && !n.IsFloat {
-		return nil, fmt.Errorf("illegal number syntax: %q", text)
-	}
-	return n, nil
-}
-
-// simplifyComplex pulls out any other types that are represented by the complex number.
-// These all require that the imaginary part be zero.
-func (n *NumberNode) simplifyComplex() {
-	n.IsFloat = imag(n.Complex128) == 0
-	if n.IsFloat {
-		n.Float64 = real(n.Complex128)
-		n.IsInt = float64(int64(n.Float64)) == n.Float64
-		if n.IsInt {
-			n.Int64 = int64(n.Float64)
-		}
-		n.IsUint = float64(uint64(n.Float64)) == n.Float64
-		if n.IsUint {
-			n.Uint64 = uint64(n.Float64)
-		}
-	}
-}
-
-func (n *NumberNode) String() string {
-	return n.Text
-}
-
-func (n *NumberNode) tree() *Tree {
-	return n.tr
-}
-
-func (n *NumberNode) Copy() Node {
-	nn := new(NumberNode)
-	*nn = *n // Easy, fast, correct.
-	return nn
-}
-
-// StringNode holds a string constant. The value has been "unquoted".
-type StringNode struct {
-	NodeType
-	Pos
-	tr     *Tree
-	Quoted string // The original text of the string, with quotes.
-	Text   string // The string, after quote processing.
-}
-
-func (t *Tree) newString(pos Pos, orig, text string) *StringNode {
-	return &StringNode{tr: t, NodeType: NodeString, Pos: pos, Quoted: orig, Text: text}
-}
-
-func (s *StringNode) String() string {
-	return s.Quoted
-}
-
-func (s *StringNode) tree() *Tree {
-	return s.tr
-}
-
-func (s *StringNode) Copy() Node {
-	return s.tr.newString(s.Pos, s.Quoted, s.Text)
-}
-
-// endNode represents an {{end}} action.
-// It does not appear in the final parse tree.
-type endNode struct {
-	NodeType
-	Pos
-	tr *Tree
-}
-
-func (t *Tree) newEnd(pos Pos) *endNode {
-	return &endNode{tr: t, NodeType: nodeEnd, Pos: pos}
-}
-
-func (e *endNode) String() string {
-	return "{{end}}"
-}
-
-func (e *endNode) tree() *Tree {
-	return e.tr
-}
-
-func (e *endNode) Copy() Node {
-	return e.tr.newEnd(e.Pos)
-}
-
-// elseNode represents an {{else}} action. Does not appear in the final tree.
-type elseNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	Line int // The line number in the input (deprecated; kept for compatibility)
-}
-
-func (t *Tree) newElse(pos Pos, line int) *elseNode {
-	return &elseNode{tr: t, NodeType: nodeElse, Pos: pos, Line: line}
-}
-
-func (e *elseNode) Type() NodeType {
-	return nodeElse
-}
-
-func (e *elseNode) String() string {
-	return "{{else}}"
-}
-
-func (e *elseNode) tree() *Tree {
-	return e.tr
-}
-
-func (e *elseNode) Copy() Node {
-	return e.tr.newElse(e.Pos, e.Line)
-}
-
-// BranchNode is the common representation of if, range, and with.
-type BranchNode struct {
-	NodeType
-	Pos
-	tr       *Tree
-	Line     int       // The line number in the input (deprecated; kept for compatibility)
-	Pipe     *PipeNode // The pipeline to be evaluated.
-	List     *ListNode // What to execute if the value is non-empty.
-	ElseList *ListNode // What to execute if the value is empty (nil if absent).
-}
-
-func (b *BranchNode) String() string {
-	name := ""
-	switch b.NodeType {
-	case NodeIf:
-		name = "if"
-	case NodeRange:
-		name = "range"
-	case NodeWith:
-		name = "with"
-	default:
-		panic("unknown branch type")
-	}
-	if b.ElseList != nil {
-		return fmt.Sprintf("{{%s %s}}%s{{else}}%s{{end}}", name, b.Pipe, b.List, b.ElseList)
-	}
-	return fmt.Sprintf("{{%s %s}}%s{{end}}", name, b.Pipe, b.List)
-}
-
-func (b *BranchNode) tree() *Tree {
-	return b.tr
-}
-
-func (b *BranchNode) Copy() Node {
-	switch b.NodeType {
-	case NodeIf:
-		return b.tr.newIf(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
-	case NodeRange:
-		return b.tr.newRange(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
-	case NodeWith:
-		return b.tr.newWith(b.Pos, b.Line, b.Pipe, b.List, b.ElseList)
-	default:
-		panic("unknown branch type")
-	}
-}
-
-// IfNode represents an {{if}} action and its commands.
-type IfNode struct {
-	BranchNode
-}
-
-func (t *Tree) newIf(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *IfNode {
-	return &IfNode{BranchNode{tr: t, NodeType: NodeIf, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
-}
-
-func (i *IfNode) Copy() Node {
-	return i.tr.newIf(i.Pos, i.Line, i.Pipe.CopyPipe(), i.List.CopyList(), i.ElseList.CopyList())
-}
-
-// RangeNode represents a {{range}} action and its commands.
-type RangeNode struct {
-	BranchNode
-}
-
-func (t *Tree) newRange(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *RangeNode {
-	return &RangeNode{BranchNode{tr: t, NodeType: NodeRange, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
-}
-
-func (r *RangeNode) Copy() Node {
-	return r.tr.newRange(r.Pos, r.Line, r.Pipe.CopyPipe(), r.List.CopyList(), r.ElseList.CopyList())
-}
-
-// WithNode represents a {{with}} action and its commands.
-type WithNode struct {
-	BranchNode
-}
-
-func (t *Tree) newWith(pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) *WithNode {
-	return &WithNode{BranchNode{tr: t, NodeType: NodeWith, Pos: pos, Line: line, Pipe: pipe, List: list, ElseList: elseList}}
-}
-
-func (w *WithNode) Copy() Node {
-	return w.tr.newWith(w.Pos, w.Line, w.Pipe.CopyPipe(), w.List.CopyList(), w.ElseList.CopyList())
-}
-
-// TemplateNode represents a {{template}} action.
-type TemplateNode struct {
-	NodeType
-	Pos
-	tr   *Tree
-	Line int       // The line number in the input (deprecated; kept for compatibility)
-	Name string    // The name of the template (unquoted).
-	Pipe *PipeNode // The command to evaluate as dot for the template.
-}
-
-func (t *Tree) newTemplate(pos Pos, line int, name string, pipe *PipeNode) *TemplateNode {
-	return &TemplateNode{tr: t, NodeType: NodeTemplate, Pos: pos, Line: line, Name: name, Pipe: pipe}
-}
-
-func (t *TemplateNode) String() string {
-	if t.Pipe == nil {
-		return fmt.Sprintf("{{template %q}}", t.Name)
-	}
-	return fmt.Sprintf("{{template %q %s}}", t.Name, t.Pipe)
-}
-
-func (t *TemplateNode) tree() *Tree {
-	return t.tr
-}
-
-func (t *TemplateNode) Copy() Node {
-	return t.tr.newTemplate(t.Pos, t.Line, t.Name, t.Pipe.CopyPipe())
-}
--- a/vendor/github.com/alecthomas/template/parse/parse.go
+++ b/vendor/github.com/alecthomas/template/parse/parse.go
@@ -1,700 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package parse builds parse trees for templates as defined by text/template
-// and html/template. Clients should use those packages to construct templates
-// rather than this one, which provides shared internal data structures not
-// intended for general use.
-package parse
-
-import (
-	"bytes"
-	"fmt"
-	"runtime"
-	"strconv"
-	"strings"
-)
-
-// Tree is the representation of a single parsed template.
-type Tree struct {
-	Name      string    // name of the template represented by the tree.
-	ParseName string    // name of the top-level template during parsing, for error messages.
-	Root      *ListNode // top-level root of the tree.
-	text      string    // text parsed to create the template (or its parent)
-	// Parsing only; cleared after parse.
-	funcs     []map[string]interface{}
-	lex       *lexer
-	token     [3]item // three-token lookahead for parser.
-	peekCount int
-	vars      []string // variables defined at the moment.
-}
-
-// Copy returns a copy of the Tree. Any parsing state is discarded.
-func (t *Tree) Copy() *Tree {
-	if t == nil {
-		return nil
-	}
-	return &Tree{
-		Name:      t.Name,
-		ParseName: t.ParseName,
-		Root:      t.Root.CopyList(),
-		text:      t.text,
-	}
-}
-
-// Parse returns a map from template name to parse.Tree, created by parsing the
-// templates described in the argument string. The top-level template will be
-// given the specified name. If an error is encountered, parsing stops and an
-// empty map is returned with the error.
-func Parse(name, text, leftDelim, rightDelim string, funcs ...map[string]interface{}) (treeSet map[string]*Tree, err error) {
-	treeSet = make(map[string]*Tree)
-	t := New(name)
-	t.text = text
-	_, err = t.Parse(text, leftDelim, rightDelim, treeSet, funcs...)
-	return
-}
-
-// next returns the next token.
-func (t *Tree) next() item {
-	if t.peekCount > 0 {
-		t.peekCount--
-	} else {
-		t.token[0] = t.lex.nextItem()
-	}
-	return t.token[t.peekCount]
-}
-
-// backup backs the input stream up one token.
-func (t *Tree) backup() {
-	t.peekCount++
-}
-
-// backup2 backs the input stream up two tokens.
-// The zeroth token is already there.
-func (t *Tree) backup2(t1 item) {
-	t.token[1] = t1
-	t.peekCount = 2
-}
-
-// backup3 backs the input stream up three tokens
-// The zeroth token is already there.
-func (t *Tree) backup3(t2, t1 item) { // Reverse order: we're pushing back.
-	t.token[1] = t1
-	t.token[2] = t2
-	t.peekCount = 3
-}
-
-// peek returns but does not consume the next token.
-func (t *Tree) peek() item {
-	if t.peekCount > 0 {
-		return t.token[t.peekCount-1]
-	}
-	t.peekCount = 1
-	t.token[0] = t.lex.nextItem()
-	return t.token[0]
-}
-
-// nextNonSpace returns the next non-space token.
-func (t *Tree) nextNonSpace() (token item) {
-	for {
-		token = t.next()
-		if token.typ != itemSpace {
-			break
-		}
-	}
-	return token
-}
-
-// peekNonSpace returns but does not consume the next non-space token.
-func (t *Tree) peekNonSpace() (token item) {
-	for {
-		token = t.next()
-		if token.typ != itemSpace {
-			break
-		}
-	}
-	t.backup()
-	return token
-}
-
-// Parsing.
-
-// New allocates a new parse tree with the given name.
-func New(name string, funcs ...map[string]interface{}) *Tree {
-	return &Tree{
-		Name:  name,
-		funcs: funcs,
-	}
-}
-
-// ErrorContext returns a textual representation of the location of the node in the input text.
-// The receiver is only used when the node does not have a pointer to the tree inside,
-// which can occur in old code.
-func (t *Tree) ErrorContext(n Node) (location, context string) {
-	pos := int(n.Position())
-	tree := n.tree()
-	if tree == nil {
-		tree = t
-	}
-	text := tree.text[:pos]
-	byteNum := strings.LastIndex(text, "\n")
-	if byteNum == -1 {
-		byteNum = pos // On first line.
-	} else {
-		byteNum++ // After the newline.
-		byteNum = pos - byteNum
-	}
-	lineNum := 1 + strings.Count(text, "\n")
-	context = n.String()
-	if len(context) > 20 {
-		context = fmt.Sprintf("%.20s...", context)
-	}
-	return fmt.Sprintf("%s:%d:%d", tree.ParseName, lineNum, byteNum), context
-}
-
-// errorf formats the error and terminates processing.
-func (t *Tree) errorf(format string, args ...interface{}) {
-	t.Root = nil
-	format = fmt.Sprintf("template: %s:%d: %s", t.ParseName, t.lex.lineNumber(), format)
-	panic(fmt.Errorf(format, args...))
-}
-
-// error terminates processing.
-func (t *Tree) error(err error) {
-	t.errorf("%s", err)
-}
-
-// expect consumes the next token and guarantees it has the required type.
-func (t *Tree) expect(expected itemType, context string) item {
-	token := t.nextNonSpace()
-	if token.typ != expected {
-		t.unexpected(token, context)
-	}
-	return token
-}
-
-// expectOneOf consumes the next token and guarantees it has one of the required types.
-func (t *Tree) expectOneOf(expected1, expected2 itemType, context string) item {
-	token := t.nextNonSpace()
-	if token.typ != expected1 && token.typ != expected2 {
-		t.unexpected(token, context)
-	}
-	return token
-}
-
-// unexpected complains about the token and terminates processing.
-func (t *Tree) unexpected(token item, context string) {
-	t.errorf("unexpected %s in %s", token, context)
-}
-
-// recover is the handler that turns panics into returns from the top level of Parse.
-func (t *Tree) recover(errp *error) {
-	e := recover()
-	if e != nil {
-		if _, ok := e.(runtime.Error); ok {
-			panic(e)
-		}
-		if t != nil {
-			t.stopParse()
-		}
-		*errp = e.(error)
-	}
-	return
-}
-
-// startParse initializes the parser, using the lexer.
-func (t *Tree) startParse(funcs []map[string]interface{}, lex *lexer) {
-	t.Root = nil
-	t.lex = lex
-	t.vars = []string{"$"}
-	t.funcs = funcs
-}
-
-// stopParse terminates parsing.
-func (t *Tree) stopParse() {
-	t.lex = nil
-	t.vars = nil
-	t.funcs = nil
-}
-
-// Parse parses the template definition string to construct a representation of
-// the template for execution. If either action delimiter string is empty, the
-// default ("{{" or "}}") is used. Embedded template definitions are added to
-// the treeSet map.
-func (t *Tree) Parse(text, leftDelim, rightDelim string, treeSet map[string]*Tree, funcs ...map[string]interface{}) (tree *Tree, err error) {
-	defer t.recover(&err)
-	t.ParseName = t.Name
-	t.startParse(funcs, lex(t.Name, text, leftDelim, rightDelim))
-	t.text = text
-	t.parse(treeSet)
-	t.add(treeSet)
-	t.stopParse()
-	return t, nil
-}
-
-// add adds tree to the treeSet.
-func (t *Tree) add(treeSet map[string]*Tree) {
-	tree := treeSet[t.Name]
-	if tree == nil || IsEmptyTree(tree.Root) {
-		treeSet[t.Name] = t
-		return
-	}
-	if !IsEmptyTree(t.Root) {
-		t.errorf("template: multiple definition of template %q", t.Name)
-	}
-}
-
-// IsEmptyTree reports whether this tree (node) is empty of everything but space.
-func IsEmptyTree(n Node) bool {
-	switch n := n.(type) {
-	case nil:
-		return true
-	case *ActionNode:
-	case *IfNode:
-	case *ListNode:
-		for _, node := range n.Nodes {
-			if !IsEmptyTree(node) {
-				return false
-			}
-		}
-		return true
-	case *RangeNode:
-	case *TemplateNode:
-	case *TextNode:
-		return len(bytes.TrimSpace(n.Text)) == 0
-	case *WithNode:
-	default:
-		panic("unknown node: " + n.String())
-	}
-	return false
-}
-
-// parse is the top-level parser for a template, essentially the same
-// as itemList except it also parses {{define}} actions.
-// It runs to EOF.
-func (t *Tree) parse(treeSet map[string]*Tree) (next Node) {
-	t.Root = t.newList(t.peek().pos)
-	for t.peek().typ != itemEOF {
-		if t.peek().typ == itemLeftDelim {
-			delim := t.next()
-			if t.nextNonSpace().typ == itemDefine {
-				newT := New("definition") // name will be updated once we know it.
-				newT.text = t.text
-				newT.ParseName = t.ParseName
-				newT.startParse(t.funcs, t.lex)
-				newT.parseDefinition(treeSet)
-				continue
-			}
-			t.backup2(delim)
-		}
-		n := t.textOrAction()
-		if n.Type() == nodeEnd {
-			t.errorf("unexpected %s", n)
-		}
-		t.Root.append(n)
-	}
-	return nil
-}
-
-// parseDefinition parses a {{define}} ...  {{end}} template definition and
-// installs the definition in the treeSet map.  The "define" keyword has already
-// been scanned.
-func (t *Tree) parseDefinition(treeSet map[string]*Tree) {
-	const context = "define clause"
-	name := t.expectOneOf(itemString, itemRawString, context)
-	var err error
-	t.Name, err = strconv.Unquote(name.val)
-	if err != nil {
-		t.error(err)
-	}
-	t.expect(itemRightDelim, context)
-	var end Node
-	t.Root, end = t.itemList()
-	if end.Type() != nodeEnd {
-		t.errorf("unexpected %s in %s", end, context)
-	}
-	t.add(treeSet)
-	t.stopParse()
-}
-
-// itemList:
-//	textOrAction*
-// Terminates at {{end}} or {{else}}, returned separately.
-func (t *Tree) itemList() (list *ListNode, next Node) {
-	list = t.newList(t.peekNonSpace().pos)
-	for t.peekNonSpace().typ != itemEOF {
-		n := t.textOrAction()
-		switch n.Type() {
-		case nodeEnd, nodeElse:
-			return list, n
-		}
-		list.append(n)
-	}
-	t.errorf("unexpected EOF")
-	return
-}
-
-// textOrAction:
-//	text | action
-func (t *Tree) textOrAction() Node {
-	switch token := t.nextNonSpace(); token.typ {
-	case itemElideNewline:
-		return t.elideNewline()
-	case itemText:
-		return t.newText(token.pos, token.val)
-	case itemLeftDelim:
-		return t.action()
-	default:
-		t.unexpected(token, "input")
-	}
-	return nil
-}
-
-// elideNewline:
-// Remove newlines trailing rightDelim if \\ is present.
-func (t *Tree) elideNewline() Node {
-	token := t.peek()
-	if token.typ != itemText {
-		t.unexpected(token, "input")
-		return nil
-	}
-
-	t.next()
-	stripped := strings.TrimLeft(token.val, "\n\r")
-	diff := len(token.val) - len(stripped)
-	if diff > 0 {
-		// This is a bit nasty. We mutate the token in-place to remove
-		// preceding newlines.
-		token.pos += Pos(diff)
-		token.val = stripped
-	}
-	return t.newText(token.pos, token.val)
-}
-
-// Action:
-//	control
-//	command ("|" command)*
-// Left delim is past. Now get actions.
-// First word could be a keyword such as range.
-func (t *Tree) action() (n Node) {
-	switch token := t.nextNonSpace(); token.typ {
-	case itemElse:
-		return t.elseControl()
-	case itemEnd:
-		return t.endControl()
-	case itemIf:
-		return t.ifControl()
-	case itemRange:
-		return t.rangeControl()
-	case itemTemplate:
-		return t.templateControl()
-	case itemWith:
-		return t.withControl()
-	}
-	t.backup()
-	// Do not pop variables; they persist until "end".
-	return t.newAction(t.peek().pos, t.lex.lineNumber(), t.pipeline("command"))
-}
-
-// Pipeline:
-//	declarations? command ('|' command)*
-func (t *Tree) pipeline(context string) (pipe *PipeNode) {
-	var decl []*VariableNode
-	pos := t.peekNonSpace().pos
-	// Are there declarations?
-	for {
-		if v := t.peekNonSpace(); v.typ == itemVariable {
-			t.next()
-			// Since space is a token, we need 3-token look-ahead here in the worst case:
-			// in "$x foo" we need to read "foo" (as opposed to ":=") to know that $x is an
-			// argument variable rather than a declaration. So remember the token
-			// adjacent to the variable so we can push it back if necessary.
-			tokenAfterVariable := t.peek()
-			if next := t.peekNonSpace(); next.typ == itemColonEquals || (next.typ == itemChar && next.val == ",") {
-				t.nextNonSpace()
-				variable := t.newVariable(v.pos, v.val)
-				decl = append(decl, variable)
-				t.vars = append(t.vars, v.val)
-				if next.typ == itemChar && next.val == "," {
-					if context == "range" && len(decl) < 2 {
-						continue
-					}
-					t.errorf("too many declarations in %s", context)
-				}
-			} else if tokenAfterVariable.typ == itemSpace {
-				t.backup3(v, tokenAfterVariable)
-			} else {
-				t.backup2(v)
-			}
-		}
-		break
-	}
-	pipe = t.newPipeline(pos, t.lex.lineNumber(), decl)
-	for {
-		switch token := t.nextNonSpace(); token.typ {
-		case itemRightDelim, itemRightParen:
-			if len(pipe.Cmds) == 0 {
-				t.errorf("missing value for %s", context)
-			}
-			if token.typ == itemRightParen {
-				t.backup()
-			}
-			return
-		case itemBool, itemCharConstant, itemComplex, itemDot, itemField, itemIdentifier,
-			itemNumber, itemNil, itemRawString, itemString, itemVariable, itemLeftParen:
-			t.backup()
-			pipe.append(t.command())
-		default:
-			t.unexpected(token, context)
-		}
-	}
-}
-
-func (t *Tree) parseControl(allowElseIf bool, context string) (pos Pos, line int, pipe *PipeNode, list, elseList *ListNode) {
-	defer t.popVars(len(t.vars))
-	line = t.lex.lineNumber()
-	pipe = t.pipeline(context)
-	var next Node
-	list, next = t.itemList()
-	switch next.Type() {
-	case nodeEnd: //done
-	case nodeElse:
-		if allowElseIf {
-			// Special case for "else if". If the "else" is followed immediately by an "if",
-			// the elseControl will have left the "if" token pending. Treat
-			//	{{if a}}_{{else if b}}_{{end}}
-			// as
-			//	{{if a}}_{{else}}{{if b}}_{{end}}{{end}}.
-			// To do this, parse the if as usual and stop at it {{end}}; the subsequent{{end}}
-			// is assumed. This technique works even for long if-else-if chains.
-			// TODO: Should we allow else-if in with and range?
-			if t.peek().typ == itemIf {
-				t.next() // Consume the "if" token.
-				elseList = t.newList(next.Position())
-				elseList.append(t.ifControl())
-				// Do not consume the next item - only one {{end}} required.
-				break
-			}
-		}
-		elseList, next = t.itemList()
-		if next.Type() != nodeEnd {
-			t.errorf("expected end; found %s", next)
-		}
-	}
-	return pipe.Position(), line, pipe, list, elseList
-}
-
-// If:
-//	{{if pipeline}} itemList {{end}}
-//	{{if pipeline}} itemList {{else}} itemList {{end}}
-// If keyword is past.
-func (t *Tree) ifControl() Node {
-	return t.newIf(t.parseControl(true, "if"))
-}
-
-// Range:
-//	{{range pipeline}} itemList {{end}}
-//	{{range pipeline}} itemList {{else}} itemList {{end}}
-// Range keyword is past.
-func (t *Tree) rangeControl() Node {
-	return t.newRange(t.parseControl(false, "range"))
-}
-
-// With:
-//	{{with pipeline}} itemList {{end}}
-//	{{with pipeline}} itemList {{else}} itemList {{end}}
-// If keyword is past.
-func (t *Tree) withControl() Node {
-	return t.newWith(t.parseControl(false, "with"))
-}
-
-// End:
-//	{{end}}
-// End keyword is past.
-func (t *Tree) endControl() Node {
-	return t.newEnd(t.expect(itemRightDelim, "end").pos)
-}
-
-// Else:
-//	{{else}}
-// Else keyword is past.
-func (t *Tree) elseControl() Node {
-	// Special case for "else if".
-	peek := t.peekNonSpace()
-	if peek.typ == itemIf {
-		// We see "{{else if ... " but in effect rewrite it to {{else}}{{if ... ".
-		return t.newElse(peek.pos, t.lex.lineNumber())
-	}
-	return t.newElse(t.expect(itemRightDelim, "else").pos, t.lex.lineNumber())
-}
-
-// Template:
-//	{{template stringValue pipeline}}
-// Template keyword is past.  The name must be something that can evaluate
-// to a string.
-func (t *Tree) templateControl() Node {
-	var name string
-	token := t.nextNonSpace()
-	switch token.typ {
-	case itemString, itemRawString:
-		s, err := strconv.Unquote(token.val)
-		if err != nil {
-			t.error(err)
-		}
-		name = s
-	default:
-		t.unexpected(token, "template invocation")
-	}
-	var pipe *PipeNode
-	if t.nextNonSpace().typ != itemRightDelim {
-		t.backup()
-		// Do not pop variables; they persist until "end".
-		pipe = t.pipeline("template")
-	}
-	return t.newTemplate(token.pos, t.lex.lineNumber(), name, pipe)
-}
-
-// command:
-//	operand (space operand)*
-// space-separated arguments up to a pipeline character or right delimiter.
-// we consume the pipe character but leave the right delim to terminate the action.
-func (t *Tree) command() *CommandNode {
-	cmd := t.newCommand(t.peekNonSpace().pos)
-	for {
-		t.peekNonSpace() // skip leading spaces.
-		operand := t.operand()
-		if operand != nil {
-			cmd.append(operand)
-		}
-		switch token := t.next(); token.typ {
-		case itemSpace:
-			continue
-		case itemError:
-			t.errorf("%s", token.val)
-		case itemRightDelim, itemRightParen:
-			t.backup()
-		case itemPipe:
-		default:
-			t.errorf("unexpected %s in operand; missing space?", token)
-		}
-		break
-	}
-	if len(cmd.Args) == 0 {
-		t.errorf("empty command")
-	}
-	return cmd
-}
-
-// operand:
-//	term .Field*
-// An operand is a space-separated component of a command,
-// a term possibly followed by field accesses.
-// A nil return means the next item is not an operand.
-func (t *Tree) operand() Node {
-	node := t.term()
-	if node == nil {
-		return nil
-	}
-	if t.peek().typ == itemField {
-		chain := t.newChain(t.peek().pos, node)
-		for t.peek().typ == itemField {
-			chain.Add(t.next().val)
-		}
-		// Compatibility with original API: If the term is of type NodeField
-		// or NodeVariable, just put more fields on the original.
-		// Otherwise, keep the Chain node.
-		// TODO: Switch to Chains always when we can.
-		switch node.Type() {
-		case NodeField:
-			node = t.newField(chain.Position(), chain.String())
-		case NodeVariable:
-			node = t.newVariable(chain.Position(), chain.String())
-		default:
-			node = chain
-		}
-	}
-	return node
-}
-
-// term:
-//	literal (number, string, nil, boolean)
-//	function (identifier)
-//	.
-//	.Field
-//	$
-//	'(' pipeline ')'
-// A term is a simple "expression".
-// A nil return means the next item is not a term.
-func (t *Tree) term() Node {
-	switch token := t.nextNonSpace(); token.typ {
-	case itemError:
-		t.errorf("%s", token.val)
-	case itemIdentifier:
-		if !t.hasFunction(token.val) {
-			t.errorf("function %q not defined", token.val)
-		}
-		return NewIdentifier(token.val).SetTree(t).SetPos(token.pos)
-	case itemDot:
-		return t.newDot(token.pos)
-	case itemNil:
-		return t.newNil(token.pos)
-	case itemVariable:
-		return t.useVar(token.pos, token.val)
-	case itemField:
-		return t.newField(token.pos, token.val)
-	case itemBool:
-		return t.newBool(token.pos, token.val == "true")
-	case itemCharConstant, itemComplex, itemNumber:
-		number, err := t.newNumber(token.pos, token.val, token.typ)
-		if err != nil {
-			t.error(err)
-		}
-		return number
-	case itemLeftParen:
-		pipe := t.pipeline("parenthesized pipeline")
-		if token := t.next(); token.typ != itemRightParen {
-			t.errorf("unclosed right paren: unexpected %s", token)
-		}
-		return pipe
-	case itemString, itemRawString:
-		s, err := strconv.Unquote(token.val)
-		if err != nil {
-			t.error(err)
-		}
-		return t.newString(token.pos, token.val, s)
-	}
-	t.backup()
-	return nil
-}
-
-// hasFunction reports if a function name exists in the Tree's maps.
-func (t *Tree) hasFunction(name string) bool {
-	for _, funcMap := range t.funcs {
-		if funcMap == nil {
-			continue
-		}
-		if funcMap[name] != nil {
-			return true
-		}
-	}
-	return false
-}
-
-// popVars trims the variable list to the specified length
-func (t *Tree) popVars(n int) {
-	t.vars = t.vars[:n]
-}
-
-// useVar returns a node for a variable reference. It errors if the
-// variable is not defined.
-func (t *Tree) useVar(pos Pos, name string) Node {
-	v := t.newVariable(pos, name)
-	for _, varName := range t.vars {
-		if varName == v.Ident[0] {
-			return v
-		}
-	}
-	t.errorf("undefined variable %q", v.Ident[0])
-	return nil
-}
--- a/vendor/github.com/alecthomas/template/template.go
+++ b/vendor/github.com/alecthomas/template/template.go
@@ -1,218 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package template
-
-import (
-	"fmt"
-	"reflect"
-
-	"github.com/alecthomas/template/parse"
-)
-
-// common holds the information shared by related templates.
-type common struct {
-	tmpl map[string]*Template
-	// We use two maps, one for parsing and one for execution.
-	// This separation makes the API cleaner since it doesn't
-	// expose reflection to the client.
-	parseFuncs FuncMap
-	execFuncs  map[string]reflect.Value
-}
-
-// Template is the representation of a parsed template. The *parse.Tree
-// field is exported only for use by html/template and should be treated
-// as unexported by all other clients.
-type Template struct {
-	name string
-	*parse.Tree
-	*common
-	leftDelim  string
-	rightDelim string
-}
-
-// New allocates a new template with the given name.
-func New(name string) *Template {
-	return &Template{
-		name: name,
-	}
-}
-
-// Name returns the name of the template.
-func (t *Template) Name() string {
-	return t.name
-}
-
-// New allocates a new template associated with the given one and with the same
-// delimiters. The association, which is transitive, allows one template to
-// invoke another with a {{template}} action.
-func (t *Template) New(name string) *Template {
-	t.init()
-	return &Template{
-		name:       name,
-		common:     t.common,
-		leftDelim:  t.leftDelim,
-		rightDelim: t.rightDelim,
-	}
-}
-
-func (t *Template) init() {
-	if t.common == nil {
-		t.common = new(common)
-		t.tmpl = make(map[string]*Template)
-		t.parseFuncs = make(FuncMap)
-		t.execFuncs = make(map[string]reflect.Value)
-	}
-}
-
-// Clone returns a duplicate of the template, including all associated
-// templates. The actual representation is not copied, but the name space of
-// associated templates is, so further calls to Parse in the copy will add
-// templates to the copy but not to the original. Clone can be used to prepare
-// common templates and use them with variant definitions for other templates
-// by adding the variants after the clone is made.
-func (t *Template) Clone() (*Template, error) {
-	nt := t.copy(nil)
-	nt.init()
-	nt.tmpl[t.name] = nt
-	for k, v := range t.tmpl {
-		if k == t.name { // Already installed.
-			continue
-		}
-		// The associated templates share nt's common structure.
-		tmpl := v.copy(nt.common)
-		nt.tmpl[k] = tmpl
-	}
-	for k, v := range t.parseFuncs {
-		nt.parseFuncs[k] = v
-	}
-	for k, v := range t.execFuncs {
-		nt.execFuncs[k] = v
-	}
-	return nt, nil
-}
-
-// copy returns a shallow copy of t, with common set to the argument.
-func (t *Template) copy(c *common) *Template {
-	nt := New(t.name)
-	nt.Tree = t.Tree
-	nt.common = c
-	nt.leftDelim = t.leftDelim
-	nt.rightDelim = t.rightDelim
-	return nt
-}
-
-// AddParseTree creates a new template with the name and parse tree
-// and associates it with t.
-func (t *Template) AddParseTree(name string, tree *parse.Tree) (*Template, error) {
-	if t.common != nil && t.tmpl[name] != nil {
-		return nil, fmt.Errorf("template: redefinition of template %q", name)
-	}
-	nt := t.New(name)
-	nt.Tree = tree
-	t.tmpl[name] = nt
-	return nt, nil
-}
-
-// Templates returns a slice of the templates associated with t, including t
-// itself.
-func (t *Template) Templates() []*Template {
-	if t.common == nil {
-		return nil
-	}
-	// Return a slice so we don't expose the map.
-	m := make([]*Template, 0, len(t.tmpl))
-	for _, v := range t.tmpl {
-		m = append(m, v)
-	}
-	return m
-}
-
-// Delims sets the action delimiters to the specified strings, to be used in
-// subsequent calls to Parse, ParseFiles, or ParseGlob. Nested template
-// definitions will inherit the settings. An empty delimiter stands for the
-// corresponding default: {{ or }}.
-// The return value is the template, so calls can be chained.
-func (t *Template) Delims(left, right string) *Template {
-	t.leftDelim = left
-	t.rightDelim = right
-	return t
-}
-
-// Funcs adds the elements of the argument map to the template's function map.
-// It panics if a value in the map is not a function with appropriate return
-// type. However, it is legal to overwrite elements of the map. The return
-// value is the template, so calls can be chained.
-func (t *Template) Funcs(funcMap FuncMap) *Template {
-	t.init()
-	addValueFuncs(t.execFuncs, funcMap)
-	addFuncs(t.parseFuncs, funcMap)
-	return t
-}
-
-// Lookup returns the template with the given name that is associated with t,
-// or nil if there is no such template.
-func (t *Template) Lookup(name string) *Template {
-	if t.common == nil {
-		return nil
-	}
-	return t.tmpl[name]
-}
-
-// Parse parses a string into a template. Nested template definitions will be
-// associated with the top-level template t. Parse may be called multiple times
-// to parse definitions of templates to associate with t. It is an error if a
-// resulting template is non-empty (contains content other than template
-// definitions) and would replace a non-empty template with the same name.
-// (In multiple calls to Parse with the same receiver template, only one call
-// can contain text other than space, comments, and template definitions.)
-func (t *Template) Parse(text string) (*Template, error) {
-	t.init()
-	trees, err := parse.Parse(t.name, text, t.leftDelim, t.rightDelim, t.parseFuncs, builtins)
-	if err != nil {
-		return nil, err
-	}
-	// Add the newly parsed trees, including the one for t, into our common structure.
-	for name, tree := range trees {
-		// If the name we parsed is the name of this template, overwrite this template.
-		// The associate method checks it's not a redefinition.
-		tmpl := t
-		if name != t.name {
-			tmpl = t.New(name)
-		}
-		// Even if t == tmpl, we need to install it in the common.tmpl map.
-		if replace, err := t.associate(tmpl, tree); err != nil {
-			return nil, err
-		} else if replace {
-			tmpl.Tree = tree
-		}
-		tmpl.leftDelim = t.leftDelim
-		tmpl.rightDelim = t.rightDelim
-	}
-	return t, nil
-}
-
-// associate installs the new template into the group of templates associated
-// with t. It is an error to reuse a name except to overwrite an empty
-// template. The two are already known to share the common structure.
-// The boolean return value reports wither to store this tree as t.Tree.
-func (t *Template) associate(new *Template, tree *parse.Tree) (bool, error) {
-	if new.common != t.common {
-		panic("internal error: associate not common")
-	}
-	name := new.name
-	if old := t.tmpl[name]; old != nil {
-		oldIsEmpty := parse.IsEmptyTree(old.Root)
-		newIsEmpty := parse.IsEmptyTree(tree.Root)
-		if newIsEmpty {
-			// Whether old is empty or not, new is empty; no reason to replace old.
-			return false, nil
-		}
-		if !oldIsEmpty {
-			return false, fmt.Errorf("template: redefinition of template %q", name)
-		}
-	}
-	t.tmpl[name] = new
-	return true, nil
-}
--- a/vendor/github.com/alecthomas/units/COPYING
+++ b/vendor/github.com/alecthomas/units/COPYING
@@ -1,19 +0,0 @@
-Copyright (C) 2014 Alec Thomas
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
--- a/vendor/github.com/alecthomas/units/README.md
+++ b/vendor/github.com/alecthomas/units/README.md
@@ -1,11 +0,0 @@
-# Units - Helpful unit multipliers and functions for Go
-
-The goal of this package is to have functionality similar to the [time](http://golang.org/pkg/time/) package.
-
-It allows for code like this:
-
-```go
-n, err := ParseBase2Bytes("1KB")
-// n == 1024
-n = units.Mebibyte * 512
-```
--- a/vendor/github.com/alecthomas/units/bytes.go
+++ b/vendor/github.com/alecthomas/units/bytes.go
@@ -1,85 +0,0 @@
-package units
-
-// Base2Bytes is the old non-SI power-of-2 byte scale (1024 bytes in a kilobyte,
-// etc.).
-type Base2Bytes int64
-
-// Base-2 byte units.
-const (
-	Kibibyte Base2Bytes = 1024
-	KiB                 = Kibibyte
-	Mebibyte            = Kibibyte * 1024
-	MiB                 = Mebibyte
-	Gibibyte            = Mebibyte * 1024
-	GiB                 = Gibibyte
-	Tebibyte            = Gibibyte * 1024
-	TiB                 = Tebibyte
-	Pebibyte            = Tebibyte * 1024
-	PiB                 = Pebibyte
-	Exbibyte            = Pebibyte * 1024
-	EiB                 = Exbibyte
-)
-
-var (
-	bytesUnitMap    = MakeUnitMap("iB", "B", 1024)
-	oldBytesUnitMap = MakeUnitMap("B", "B", 1024)
-)
-
-// ParseBase2Bytes supports both iB and B in base-2 multipliers. That is, KB
-// and KiB are both 1024.
-// However "kB", which is the correct SI spelling of 1000 Bytes, is rejected.
-func ParseBase2Bytes(s string) (Base2Bytes, error) {
-	n, err := ParseUnit(s, bytesUnitMap)
-	if err != nil {
-		n, err = ParseUnit(s, oldBytesUnitMap)
-	}
-	return Base2Bytes(n), err
-}
-
-func (b Base2Bytes) String() string {
-	return ToString(int64(b), 1024, "iB", "B")
-}
-
-var (
-	metricBytesUnitMap = MakeUnitMap("B", "B", 1000)
-)
-
-// MetricBytes are SI byte units (1000 bytes in a kilobyte).
-type MetricBytes SI
-
-// SI base-10 byte units.
-const (
-	Kilobyte MetricBytes = 1000
-	KB                   = Kilobyte
-	Megabyte             = Kilobyte * 1000
-	MB                   = Megabyte
-	Gigabyte             = Megabyte * 1000
-	GB                   = Gigabyte
-	Terabyte             = Gigabyte * 1000
-	TB                   = Terabyte
-	Petabyte             = Terabyte * 1000
-	PB                   = Petabyte
-	Exabyte              = Petabyte * 1000
-	EB                   = Exabyte
-)
-
-// ParseMetricBytes parses base-10 metric byte units. That is, KB is 1000 bytes.
-func ParseMetricBytes(s string) (MetricBytes, error) {
-	n, err := ParseUnit(s, metricBytesUnitMap)
-	return MetricBytes(n), err
-}
-
-// TODO: represents 1000B as uppercase "KB", while SI standard requires "kB".
-func (m MetricBytes) String() string {
-	return ToString(int64(m), 1000, "B", "B")
-}
-
-// ParseStrictBytes supports both iB and B suffixes for base 2 and metric,
-// respectively. That is, KiB represents 1024 and kB, KB represent 1000.
-func ParseStrictBytes(s string) (int64, error) {
-	n, err := ParseUnit(s, bytesUnitMap)
-	if err != nil {
-		n, err = ParseUnit(s, metricBytesUnitMap)
-	}
-	return int64(n), err
-}
--- a/vendor/github.com/alecthomas/units/doc.go
+++ b/vendor/github.com/alecthomas/units/doc.go
@@ -1,13 +0,0 @@
-// Package units provides helpful unit multipliers and functions for Go.
-//
-// The goal of this package is to have functionality similar to the time [1] package.
-//
-//
-// [1] http://golang.org/pkg/time/
-//
-// It allows for code like this:
-//
-//     n, err := ParseBase2Bytes("1KB")
-//     // n == 1024
-//     n = units.Mebibyte * 512
-package units
--- a/vendor/github.com/alecthomas/units/go.mod
+++ b/vendor/github.com/alecthomas/units/go.mod
@@ -1,3 +0,0 @@
-module github.com/alecthomas/units
-
-require github.com/stretchr/testify v1.4.0
--- a/vendor/github.com/alecthomas/units/go.sum
+++ b/vendor/github.com/alecthomas/units/go.sum
@@ -1,11 +0,0 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
--- a/vendor/github.com/alecthomas/units/si.go
+++ b/vendor/github.com/alecthomas/units/si.go
@@ -1,50 +0,0 @@
-package units
-
-// SI units.
-type SI int64
-
-// SI unit multiples.
-const (
-	Kilo SI = 1000
-	Mega    = Kilo * 1000
-	Giga    = Mega * 1000
-	Tera    = Giga * 1000
-	Peta    = Tera * 1000
-	Exa     = Peta * 1000
-)
-
-func MakeUnitMap(suffix, shortSuffix string, scale int64) map[string]float64 {
-	res := map[string]float64{
-		shortSuffix: 1,
-		// see below for "k" / "K"
-		"M" + suffix: float64(scale * scale),
-		"G" + suffix: float64(scale * scale * scale),
-		"T" + suffix: float64(scale * scale * scale * scale),
-		"P" + suffix: float64(scale * scale * scale * scale * scale),
-		"E" + suffix: float64(scale * scale * scale * scale * scale * scale),
-	}
-
-	// Standard SI prefixes use lowercase "k" for kilo = 1000.
-	// For compatibility, and to be fool-proof, we accept both "k" and "K" in metric mode.
-	//
-	// However, official binary prefixes are always capitalized - "KiB" -
-	// and we specifically never parse "kB" as 1024B because:
-	//
-	// (1) people pedantic enough to use lowercase according to SI unlikely to abuse "k" to mean 1024 :-)
-	//
-	// (2) Use of capital K for 1024 was an informal tradition predating IEC prefixes:
-	//     "The binary meaning of the kilobyte for 1024 bytes typically uses the symbol KB, with an
-	//     uppercase letter K."
-	//     -- https://en.wikipedia.org/wiki/Kilobyte#Base_2_(1024_bytes)
-	//     "Capitalization of the letter K became the de facto standard for binary notation, although this
-	//     could not be extended to higher powers, and use of the lowercase k did persist.[13][14][15]"
-	//     -- https://en.wikipedia.org/wiki/Binary_prefix#History
-	//     See also the extensive https://en.wikipedia.org/wiki/Timeline_of_binary_prefixes.
-	if scale == 1024 {
-		res["K"+suffix] = float64(scale)
-	} else {
-		res["k"+suffix] = float64(scale)
-		res["K"+suffix] = float64(scale)
-	}
-	return res
-}
--- a/vendor/github.com/alecthomas/units/util.go
+++ b/vendor/github.com/alecthomas/units/util.go
@@ -1,138 +0,0 @@
-package units
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-)
-
-var (
-	siUnits = []string{"", "K", "M", "G", "T", "P", "E"}
-)
-
-func ToString(n int64, scale int64, suffix, baseSuffix string) string {
-	mn := len(siUnits)
-	out := make([]string, mn)
-	for i, m := range siUnits {
-		if n%scale != 0 || i == 0 && n == 0 {
-			s := suffix
-			if i == 0 {
-				s = baseSuffix
-			}
-			out[mn-1-i] = fmt.Sprintf("%d%s%s", n%scale, m, s)
-		}
-		n /= scale
-		if n == 0 {
-			break
-		}
-	}
-	return strings.Join(out, "")
-}
-
-// Below code ripped straight from http://golang.org/src/pkg/time/format.go?s=33392:33438#L1123
-var errLeadingInt = errors.New("units: bad [0-9]*") // never printed
-
-// leadingInt consumes the leading [0-9]* from s.
-func leadingInt(s string) (x int64, rem string, err error) {
-	i := 0
-	for ; i < len(s); i++ {
-		c := s[i]
-		if c < '0' || c > '9' {
-			break
-		}
-		if x >= (1<<63-10)/10 {
-			// overflow
-			return 0, "", errLeadingInt
-		}
-		x = x*10 + int64(c) - '0'
-	}
-	return x, s[i:], nil
-}
-
-func ParseUnit(s string, unitMap map[string]float64) (int64, error) {
-	// [-+]?([0-9]*(\.[0-9]*)?[a-z]+)+
-	orig := s
-	f := float64(0)
-	neg := false
-
-	// Consume [-+]?
-	if s != "" {
-		c := s[0]
-		if c == '-' || c == '+' {
-			neg = c == '-'
-			s = s[1:]
-		}
-	}
-	// Special case: if all that is left is "0", this is zero.
-	if s == "0" {
-		return 0, nil
-	}
-	if s == "" {
-		return 0, errors.New("units: invalid " + orig)
-	}
-	for s != "" {
-		g := float64(0) // this element of the sequence
-
-		var x int64
-		var err error
-
-		// The next character must be [0-9.]
-		if !(s[0] == '.' || ('0' <= s[0] && s[0] <= '9')) {
-			return 0, errors.New("units: invalid " + orig)
-		}
-		// Consume [0-9]*
-		pl := len(s)
-		x, s, err = leadingInt(s)
-		if err != nil {
-			return 0, errors.New("units: invalid " + orig)
-		}
-		g = float64(x)
-		pre := pl != len(s) // whether we consumed anything before a period
-
-		// Consume (\.[0-9]*)?
-		post := false
-		if s != "" && s[0] == '.' {
-			s = s[1:]
-			pl := len(s)
-			x, s, err = leadingInt(s)
-			if err != nil {
-				return 0, errors.New("units: invalid " + orig)
-			}
-			scale := 1.0
-			for n := pl - len(s); n > 0; n-- {
-				scale *= 10
-			}
-			g += float64(x) / scale
-			post = pl != len(s)
-		}
-		if !pre && !post {
-			// no digits (e.g. ".s" or "-.s")
-			return 0, errors.New("units: invalid " + orig)
-		}
-
-		// Consume unit.
-		i := 0
-		for ; i < len(s); i++ {
-			c := s[i]
-			if c == '.' || ('0' <= c && c <= '9') {
-				break
-			}
-		}
-		u := s[:i]
-		s = s[i:]
-		unit, ok := unitMap[u]
-		if !ok {
-			return 0, errors.New("units: unknown unit " + u + " in " + orig)
-		}
-
-		f += g * unit
-	}
-
-	if neg {
-		f = -f
-	}
-	if f < float64(-1<<63) || f > float64(1<<63-1) {
-		return 0, errors.New("units: overflow parsing unit")
-	}
-	return int64(f), nil
-}
--- a/vendor/github.com/beorn7/perks/LICENSE
+++ b/vendor/github.com/beorn7/perks/LICENSE
@@ -1,20 +0,0 @@
-Copyright (C) 2013 Blake Mizerany
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- a/vendor/github.com/beorn7/perks/quantile/exampledata.txt
+++ b/vendor/github.com/beorn7/perks/quantile/exampledata.txt
--- a/vendor/github.com/beorn7/perks/quantile/stream.go
+++ b/vendor/github.com/beorn7/perks/quantile/stream.go
@@ -1,316 +0,0 @@
-// Package quantile computes approximate quantiles over an unbounded data
-// stream within low memory and CPU bounds.
-//
-// A small amount of accuracy is traded to achieve the above properties.
-//
-// Multiple streams can be merged before calling Query to generate a single set
-// of results. This is meaningful when the streams represent the same type of
-// data. See Merge and Samples.
-//
-// For more detailed information about the algorithm used, see:
-//
-// Effective Computation of Biased Quantiles over Data Streams
-//
-// http://www.cs.rutgers.edu/~muthu/bquant.pdf
-package quantile
-
-import (
-	"math"
-	"sort"
-)
-
-// Sample holds an observed value and meta information for compression. JSON
-// tags have been added for convenience.
-type Sample struct {
-	Value float64 `json:",string"`
-	Width float64 `json:",string"`
-	Delta float64 `json:",string"`
-}
-
-// Samples represents a slice of samples. It implements sort.Interface.
-type Samples []Sample
-
-func (a Samples) Len() int           { return len(a) }
-func (a Samples) Less(i, j int) bool { return a[i].Value < a[j].Value }
-func (a Samples) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-
-type invariant func(s *stream, r float64) float64
-
-// NewLowBiased returns an initialized Stream for low-biased quantiles
-// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
-// error guarantees can still be given even for the lower ranks of the data
-// distribution.
-//
-// The provided epsilon is a relative error, i.e. the true quantile of a value
-// returned by a query is guaranteed to be within (1±Epsilon)*Quantile.
-//
-// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
-// properties.
-func NewLowBiased(epsilon float64) *Stream {
-	ƒ := func(s *stream, r float64) float64 {
-		return 2 * epsilon * r
-	}
-	return newStream(ƒ)
-}
-
-// NewHighBiased returns an initialized Stream for high-biased quantiles
-// (e.g. 0.01, 0.1, 0.5) where the needed quantiles are not known a priori, but
-// error guarantees can still be given even for the higher ranks of the data
-// distribution.
-//
-// The provided epsilon is a relative error, i.e. the true quantile of a value
-// returned by a query is guaranteed to be within 1-(1±Epsilon)*(1-Quantile).
-//
-// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error
-// properties.
-func NewHighBiased(epsilon float64) *Stream {
-	ƒ := func(s *stream, r float64) float64 {
-		return 2 * epsilon * (s.n - r)
-	}
-	return newStream(ƒ)
-}
-
-// NewTargeted returns an initialized Stream concerned with a particular set of
-// quantile values that are supplied a priori. Knowing these a priori reduces
-// space and computation time. The targets map maps the desired quantiles to
-// their absolute errors, i.e. the true quantile of a value returned by a query
-// is guaranteed to be within (Quantile±Epsilon).
-//
-// See http://www.cs.rutgers.edu/~muthu/bquant.pdf for time, space, and error properties.
-func NewTargeted(targetMap map[float64]float64) *Stream {
-	// Convert map to slice to avoid slow iterations on a map.
-	// ƒ is called on the hot path, so converting the map to a slice
-	// beforehand results in significant CPU savings.
-	targets := targetMapToSlice(targetMap)
-
-	ƒ := func(s *stream, r float64) float64 {
-		var m = math.MaxFloat64
-		var f float64
-		for _, t := range targets {
-			if t.quantile*s.n <= r {
-				f = (2 * t.epsilon * r) / t.quantile
-			} else {
-				f = (2 * t.epsilon * (s.n - r)) / (1 - t.quantile)
-			}
-			if f < m {
-				m = f
-			}
-		}
-		return m
-	}
-	return newStream(ƒ)
-}
-
-type target struct {
-	quantile float64
-	epsilon  float64
-}
-
-func targetMapToSlice(targetMap map[float64]float64) []target {
-	targets := make([]target, 0, len(targetMap))
-
-	for quantile, epsilon := range targetMap {
-		t := target{
-			quantile: quantile,
-			epsilon:  epsilon,
-		}
-		targets = append(targets, t)
-	}
-
-	return targets
-}
-
-// Stream computes quantiles for a stream of float64s. It is not thread-safe by
-// design. Take care when using across multiple goroutines.
-type Stream struct {
-	*stream
-	b      Samples
-	sorted bool
-}
-
-func newStream(ƒ invariant) *Stream {
-	x := &stream{ƒ: ƒ}
-	return &Stream{x, make(Samples, 0, 500), true}
-}
-
-// Insert inserts v into the stream.
-func (s *Stream) Insert(v float64) {
-	s.insert(Sample{Value: v, Width: 1})
-}
-
-func (s *Stream) insert(sample Sample) {
-	s.b = append(s.b, sample)
-	s.sorted = false
-	if len(s.b) == cap(s.b) {
-		s.flush()
-	}
-}
-
-// Query returns the computed qth percentiles value. If s was created with
-// NewTargeted, and q is not in the set of quantiles provided a priori, Query
-// will return an unspecified result.
-func (s *Stream) Query(q float64) float64 {
-	if !s.flushed() {
-		// Fast path when there hasn't been enough data for a flush;
-		// this also yields better accuracy for small sets of data.
-		l := len(s.b)
-		if l == 0 {
-			return 0
-		}
-		i := int(math.Ceil(float64(l) * q))
-		if i > 0 {
-			i -= 1
-		}
-		s.maybeSort()
-		return s.b[i].Value
-	}
-	s.flush()
-	return s.stream.query(q)
-}
-
-// Merge merges samples into the underlying streams samples. This is handy when
-// merging multiple streams from separate threads, database shards, etc.
-//
-// ATTENTION: This method is broken and does not yield correct results. The
-// underlying algorithm is not capable of merging streams correctly.
-func (s *Stream) Merge(samples Samples) {
-	sort.Sort(samples)
-	s.stream.merge(samples)
-}
-
-// Reset reinitializes and clears the list reusing the samples buffer memory.
-func (s *Stream) Reset() {
-	s.stream.reset()
-	s.b = s.b[:0]
-}
-
-// Samples returns stream samples held by s.
-func (s *Stream) Samples() Samples {
-	if !s.flushed() {
-		return s.b
-	}
-	s.flush()
-	return s.stream.samples()
-}
-
-// Count returns the total number of samples observed in the stream
-// since initialization.
-func (s *Stream) Count() int {
-	return len(s.b) + s.stream.count()
-}
-
-func (s *Stream) flush() {
-	s.maybeSort()
-	s.stream.merge(s.b)
-	s.b = s.b[:0]
-}
-
-func (s *Stream) maybeSort() {
-	if !s.sorted {
-		s.sorted = true
-		sort.Sort(s.b)
-	}
-}
-
-func (s *Stream) flushed() bool {
-	return len(s.stream.l) > 0
-}
-
-type stream struct {
-	n float64
-	l []Sample
-	ƒ invariant
-}
-
-func (s *stream) reset() {
-	s.l = s.l[:0]
-	s.n = 0
-}
-
-func (s *stream) insert(v float64) {
-	s.merge(Samples{{v, 1, 0}})
-}
-
-func (s *stream) merge(samples Samples) {
-	// TODO(beorn7): This tries to merge not only individual samples, but
-	// whole summaries. The paper doesn't mention merging summaries at
-	// all. Unittests show that the merging is inaccurate. Find out how to
-	// do merges properly.
-	var r float64
-	i := 0
-	for _, sample := range samples {
-		for ; i < len(s.l); i++ {
-			c := s.l[i]
-			if c.Value > sample.Value {
-				// Insert at position i.
-				s.l = append(s.l, Sample{})
-				copy(s.l[i+1:], s.l[i:])
-				s.l[i] = Sample{
-					sample.Value,
-					sample.Width,
-					math.Max(sample.Delta, math.Floor(s.ƒ(s, r))-1),
-					// TODO(beorn7): How to calculate delta correctly?
-				}
-				i++
-				goto inserted
-			}
-			r += c.Width
-		}
-		s.l = append(s.l, Sample{sample.Value, sample.Width, 0})
-		i++
-	inserted:
-		s.n += sample.Width
-		r += sample.Width
-	}
-	s.compress()
-}
-
-func (s *stream) count() int {
-	return int(s.n)
-}
-
-func (s *stream) query(q float64) float64 {
-	t := math.Ceil(q * s.n)
-	t += math.Ceil(s.ƒ(s, t) / 2)
-	p := s.l[0]
-	var r float64
-	for _, c := range s.l[1:] {
-		r += p.Width
-		if r+c.Width+c.Delta > t {
-			return p.Value
-		}
-		p = c
-	}
-	return p.Value
-}
-
-func (s *stream) compress() {
-	if len(s.l) < 2 {
-		return
-	}
-	x := s.l[len(s.l)-1]
-	xi := len(s.l) - 1
-	r := s.n - 1 - x.Width
-
-	for i := len(s.l) - 2; i >= 0; i-- {
-		c := s.l[i]
-		if c.Width+x.Width+x.Delta <= s.ƒ(s, r) {
-			x.Width += c.Width
-			s.l[xi] = x
-			// Remove element at i.
-			copy(s.l[i:], s.l[i+1:])
-			s.l = s.l[:len(s.l)-1]
-			xi -= 1
-		} else {
-			x = c
-			xi = i
-		}
-		r -= c.Width
-	}
-}
-
-func (s *stream) samples() Samples {
-	samples := make(Samples, len(s.l))
-	copy(samples, s.l)
-	return samples
-}
--- a/vendor/github.com/cespare/xxhash/v2/.travis.yml
+++ b/vendor/github.com/cespare/xxhash/v2/.travis.yml
@@ -1,8 +0,0 @@
-language: go
-go:
-  - "1.x"
-  - master
-env:
-  - TAGS=""
-  - TAGS="-tags purego"
-script: go test $TAGS -v ./...
--- a/vendor/github.com/cespare/xxhash/v2/LICENSE.txt
+++ b/vendor/github.com/cespare/xxhash/v2/LICENSE.txt
@@ -1,22 +0,0 @@
-Copyright (c) 2016 Caleb Spare
-
-MIT License
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- a/vendor/github.com/cespare/xxhash/v2/README.md
+++ b/vendor/github.com/cespare/xxhash/v2/README.md
@@ -1,67 +0,0 @@
-# xxhash
-
-[![GoDoc](https://godoc.org/github.com/cespare/xxhash?status.svg)](https://godoc.org/github.com/cespare/xxhash)
-[![Build Status](https://travis-ci.org/cespare/xxhash.svg?branch=master)](https://travis-ci.org/cespare/xxhash)
-
-xxhash is a Go implementation of the 64-bit
-[xxHash](http://cyan4973.github.io/xxHash/) algorithm, XXH64. This is a
-high-quality hashing algorithm that is much faster than anything in the Go
-standard library.
-
-This package provides a straightforward API:
-
-```
-func Sum64(b []byte) uint64
-func Sum64String(s string) uint64
-type Digest struct{ ... }
-    func New() *Digest
-```
-
-The `Digest` type implements hash.Hash64. Its key methods are:
-
-```
-func (*Digest) Write([]byte) (int, error)
-func (*Digest) WriteString(string) (int, error)
-func (*Digest) Sum64() uint64
-```
-
-This implementation provides a fast pure-Go implementation and an even faster
-assembly implementation for amd64.
-
-## Compatibility
-
-This package is in a module and the latest code is in version 2 of the module.
-You need a version of Go with at least "minimal module compatibility" to use
-github.com/cespare/xxhash/v2:
-
-* 1.9.7+ for Go 1.9
-* 1.10.3+ for Go 1.10
-* Go 1.11 or later
-
-I recommend using the latest release of Go.
-
-## Benchmarks
-
-Here are some quick benchmarks comparing the pure-Go and assembly
-implementations of Sum64.
-
-| input size | purego | asm |
-| --- | --- | --- |
-| 5 B   |  979.66 MB/s |  1291.17 MB/s  |
-| 100 B | 7475.26 MB/s | 7973.40 MB/s  |
-| 4 KB  | 17573.46 MB/s | 17602.65 MB/s |
-| 10 MB | 17131.46 MB/s | 17142.16 MB/s |
-
-These numbers were generated on Ubuntu 18.04 with an Intel i7-8700K CPU using
-the following commands under Go 1.11.2:
-
-```
-$ go test -tags purego -benchtime 10s -bench '/xxhash,direct,bytes'
-$ go test -benchtime 10s -bench '/xxhash,direct,bytes'
-```
-
-## Projects using this package
-
- [InfluxDB](https://github.com/influxdata/influxdb)
- [Prometheus](https://github.com/prometheus/prometheus)
- [FreeCache](https://github.com/coocood/freecache)
--- a/vendor/github.com/cespare/xxhash/v2/go.mod
+++ b/vendor/github.com/cespare/xxhash/v2/go.mod
@@ -1,3 +0,0 @@
-module github.com/cespare/xxhash/v2
-
-go 1.11
--- a/vendor/github.com/cespare/xxhash/v2/go.sum
+++ b/vendor/github.com/cespare/xxhash/v2/go.sum
--- a/vendor/github.com/cespare/xxhash/v2/xxhash.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash.go
@@ -1,236 +0,0 @@
-// Package xxhash implements the 64-bit variant of xxHash (XXH64) as described
-// at http://cyan4973.github.io/xxHash/.
-package xxhash
-
-import (
-	"encoding/binary"
-	"errors"
-	"math/bits"
-)
-
-const (
-	prime1 uint64 = 11400714785074694791
-	prime2 uint64 = 14029467366897019727
-	prime3 uint64 = 1609587929392839161
-	prime4 uint64 = 9650029242287828579
-	prime5 uint64 = 2870177450012600261
-)
-
-// NOTE(caleb): I'm using both consts and vars of the primes. Using consts where
-// possible in the Go code is worth a small (but measurable) performance boost
-// by avoiding some MOVQs. Vars are needed for the asm and also are useful for
-// convenience in the Go code in a few places where we need to intentionally
-// avoid constant arithmetic (e.g., v1 := prime1 + prime2 fails because the
-// result overflows a uint64).
-var (
-	prime1v = prime1
-	prime2v = prime2
-	prime3v = prime3
-	prime4v = prime4
-	prime5v = prime5
-)
-
-// Digest implements hash.Hash64.
-type Digest struct {
-	v1    uint64
-	v2    uint64
-	v3    uint64
-	v4    uint64
-	total uint64
-	mem   [32]byte
-	n     int // how much of mem is used
-}
-
-// New creates a new Digest that computes the 64-bit xxHash algorithm.
-func New() *Digest {
-	var d Digest
-	d.Reset()
-	return &d
-}
-
-// Reset clears the Digest's state so that it can be reused.
-func (d *Digest) Reset() {
-	d.v1 = prime1v + prime2
-	d.v2 = prime2
-	d.v3 = 0
-	d.v4 = -prime1v
-	d.total = 0
-	d.n = 0
-}
-
-// Size always returns 8 bytes.
-func (d *Digest) Size() int { return 8 }
-
-// BlockSize always returns 32 bytes.
-func (d *Digest) BlockSize() int { return 32 }
-
-// Write adds more data to d. It always returns len(b), nil.
-func (d *Digest) Write(b []byte) (n int, err error) {
-	n = len(b)
-	d.total += uint64(n)
-
-	if d.n+n < 32 {
-		// This new data doesn't even fill the current block.
-		copy(d.mem[d.n:], b)
-		d.n += n
-		return
-	}
-
-	if d.n > 0 {
-		// Finish off the partial block.
-		copy(d.mem[d.n:], b)
-		d.v1 = round(d.v1, u64(d.mem[0:8]))
-		d.v2 = round(d.v2, u64(d.mem[8:16]))
-		d.v3 = round(d.v3, u64(d.mem[16:24]))
-		d.v4 = round(d.v4, u64(d.mem[24:32]))
-		b = b[32-d.n:]
-		d.n = 0
-	}
-
-	if len(b) >= 32 {
-		// One or more full blocks left.
-		nw := writeBlocks(d, b)
-		b = b[nw:]
-	}
-
-	// Store any remaining partial block.
-	copy(d.mem[:], b)
-	d.n = len(b)
-
-	return
-}
-
-// Sum appends the current hash to b and returns the resulting slice.
-func (d *Digest) Sum(b []byte) []byte {
-	s := d.Sum64()
-	return append(
-		b,
-		byte(s>>56),
-		byte(s>>48),
-		byte(s>>40),
-		byte(s>>32),
-		byte(s>>24),
-		byte(s>>16),
-		byte(s>>8),
-		byte(s),
-	)
-}
-
-// Sum64 returns the current hash.
-func (d *Digest) Sum64() uint64 {
-	var h uint64
-
-	if d.total >= 32 {
-		v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4
-		h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
-		h = mergeRound(h, v1)
-		h = mergeRound(h, v2)
-		h = mergeRound(h, v3)
-		h = mergeRound(h, v4)
-	} else {
-		h = d.v3 + prime5
-	}
-
-	h += d.total
-
-	i, end := 0, d.n
-	for ; i+8 <= end; i += 8 {
-		k1 := round(0, u64(d.mem[i:i+8]))
-		h ^= k1
-		h = rol27(h)*prime1 + prime4
-	}
-	if i+4 <= end {
-		h ^= uint64(u32(d.mem[i:i+4])) * prime1
-		h = rol23(h)*prime2 + prime3
-		i += 4
-	}
-	for i < end {
-		h ^= uint64(d.mem[i]) * prime5
-		h = rol11(h) * prime1
-		i++
-	}
-
-	h ^= h >> 33
-	h *= prime2
-	h ^= h >> 29
-	h *= prime3
-	h ^= h >> 32
-
-	return h
-}
-
-const (
-	magic         = "xxh\x06"
-	marshaledSize = len(magic) + 8*5 + 32
-)
-
-// MarshalBinary implements the encoding.BinaryMarshaler interface.
-func (d *Digest) MarshalBinary() ([]byte, error) {
-	b := make([]byte, 0, marshaledSize)
-	b = append(b, magic...)
-	b = appendUint64(b, d.v1)
-	b = appendUint64(b, d.v2)
-	b = appendUint64(b, d.v3)
-	b = appendUint64(b, d.v4)
-	b = appendUint64(b, d.total)
-	b = append(b, d.mem[:d.n]...)
-	b = b[:len(b)+len(d.mem)-d.n]
-	return b, nil
-}
-
-// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
-func (d *Digest) UnmarshalBinary(b []byte) error {
-	if len(b) < len(magic) || string(b[:len(magic)]) != magic {
-		return errors.New("xxhash: invalid hash state identifier")
-	}
-	if len(b) != marshaledSize {
-		return errors.New("xxhash: invalid hash state size")
-	}
-	b = b[len(magic):]
-	b, d.v1 = consumeUint64(b)
-	b, d.v2 = consumeUint64(b)
-	b, d.v3 = consumeUint64(b)
-	b, d.v4 = consumeUint64(b)
-	b, d.total = consumeUint64(b)
-	copy(d.mem[:], b)
-	b = b[len(d.mem):]
-	d.n = int(d.total % uint64(len(d.mem)))
-	return nil
-}
-
-func appendUint64(b []byte, x uint64) []byte {
-	var a [8]byte
-	binary.LittleEndian.PutUint64(a[:], x)
-	return append(b, a[:]...)
-}
-
-func consumeUint64(b []byte) ([]byte, uint64) {
-	x := u64(b)
-	return b[8:], x
-}
-
-func u64(b []byte) uint64 { return binary.LittleEndian.Uint64(b) }
-func u32(b []byte) uint32 { return binary.LittleEndian.Uint32(b) }
-
-func round(acc, input uint64) uint64 {
-	acc += input * prime2
-	acc = rol31(acc)
-	acc *= prime1
-	return acc
-}
-
-func mergeRound(acc, val uint64) uint64 {
-	val = round(0, val)
-	acc ^= val
-	acc = acc*prime1 + prime4
-	return acc
-}
-
-func rol1(x uint64) uint64  { return bits.RotateLeft64(x, 1) }
-func rol7(x uint64) uint64  { return bits.RotateLeft64(x, 7) }
-func rol11(x uint64) uint64 { return bits.RotateLeft64(x, 11) }
-func rol12(x uint64) uint64 { return bits.RotateLeft64(x, 12) }
-func rol18(x uint64) uint64 { return bits.RotateLeft64(x, 18) }
-func rol23(x uint64) uint64 { return bits.RotateLeft64(x, 23) }
-func rol27(x uint64) uint64 { return bits.RotateLeft64(x, 27) }
-func rol31(x uint64) uint64 { return bits.RotateLeft64(x, 31) }
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.go
@@ -1,13 +0,0 @@
-// +build !appengine
-// +build gc
-// +build !purego
-
-package xxhash
-
-// Sum64 computes the 64-bit xxHash digest of b.
-//
-//go:noescape
-func Sum64(b []byte) uint64
-
-//go:noescape
-func writeBlocks(d *Digest, b []byte) int
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s
@@ -1,215 +0,0 @@
-// +build !appengine
-// +build gc
-// +build !purego
-
-#include "textflag.h"
-
-// Register allocation:
-// AX	h
-// CX	pointer to advance through b
-// DX	n
-// BX	loop end
-// R8	v1, k1
-// R9	v2
-// R10	v3
-// R11	v4
-// R12	tmp
-// R13	prime1v
-// R14	prime2v
-// R15	prime4v
-
-// round reads from and advances the buffer pointer in CX.
-// It assumes that R13 has prime1v and R14 has prime2v.
-#define round(r) \
-	MOVQ  (CX), R12 \
-	ADDQ  $8, CX    \
-	IMULQ R14, R12  \
-	ADDQ  R12, r    \
-	ROLQ  $31, r    \
-	IMULQ R13, r
-
-// mergeRound applies a merge round on the two registers acc and val.
-// It assumes that R13 has prime1v, R14 has prime2v, and R15 has prime4v.
-#define mergeRound(acc, val) \
-	IMULQ R14, val \
-	ROLQ  $31, val \
-	IMULQ R13, val \
-	XORQ  val, acc \
-	IMULQ R13, acc \
-	ADDQ  R15, acc
-
-// func Sum64(b []byte) uint64
-TEXT ·Sum64(SB), NOSPLIT, $0-32
-	// Load fixed primes.
-	MOVQ ·prime1v(SB), R13
-	MOVQ ·prime2v(SB), R14
-	MOVQ ·prime4v(SB), R15
-
-	// Load slice.
-	MOVQ b_base+0(FP), CX
-	MOVQ b_len+8(FP), DX
-	LEAQ (CX)(DX*1), BX
-
-	// The first loop limit will be len(b)-32.
-	SUBQ $32, BX
-
-	// Check whether we have at least one block.
-	CMPQ DX, $32
-	JLT  noBlocks
-
-	// Set up initial state (v1, v2, v3, v4).
-	MOVQ R13, R8
-	ADDQ R14, R8
-	MOVQ R14, R9
-	XORQ R10, R10
-	XORQ R11, R11
-	SUBQ R13, R11
-
-	// Loop until CX > BX.
-blockLoop:
-	round(R8)
-	round(R9)
-	round(R10)
-	round(R11)
-
-	CMPQ CX, BX
-	JLE  blockLoop
-
-	MOVQ R8, AX
-	ROLQ $1, AX
-	MOVQ R9, R12
-	ROLQ $7, R12
-	ADDQ R12, AX
-	MOVQ R10, R12
-	ROLQ $12, R12
-	ADDQ R12, AX
-	MOVQ R11, R12
-	ROLQ $18, R12
-	ADDQ R12, AX
-
-	mergeRound(AX, R8)
-	mergeRound(AX, R9)
-	mergeRound(AX, R10)
-	mergeRound(AX, R11)
-
-	JMP afterBlocks
-
-noBlocks:
-	MOVQ ·prime5v(SB), AX
-
-afterBlocks:
-	ADDQ DX, AX
-
-	// Right now BX has len(b)-32, and we want to loop until CX > len(b)-8.
-	ADDQ $24, BX
-
-	CMPQ CX, BX
-	JG   fourByte
-
-wordLoop:
-	// Calculate k1.
-	MOVQ  (CX), R8
-	ADDQ  $8, CX
-	IMULQ R14, R8
-	ROLQ  $31, R8
-	IMULQ R13, R8
-
-	XORQ  R8, AX
-	ROLQ  $27, AX
-	IMULQ R13, AX
-	ADDQ  R15, AX
-
-	CMPQ CX, BX
-	JLE  wordLoop
-
-fourByte:
-	ADDQ $4, BX
-	CMPQ CX, BX
-	JG   singles
-
-	MOVL  (CX), R8
-	ADDQ  $4, CX
-	IMULQ R13, R8
-	XORQ  R8, AX
-
-	ROLQ  $23, AX
-	IMULQ R14, AX
-	ADDQ  ·prime3v(SB), AX
-
-singles:
-	ADDQ $4, BX
-	CMPQ CX, BX
-	JGE  finalize
-
-singlesLoop:
-	MOVBQZX (CX), R12
-	ADDQ    $1, CX
-	IMULQ   ·prime5v(SB), R12
-	XORQ    R12, AX
-
-	ROLQ  $11, AX
-	IMULQ R13, AX
-
-	CMPQ CX, BX
-	JL   singlesLoop
-
-finalize:
-	MOVQ  AX, R12
-	SHRQ  $33, R12
-	XORQ  R12, AX
-	IMULQ R14, AX
-	MOVQ  AX, R12
-	SHRQ  $29, R12
-	XORQ  R12, AX
-	IMULQ ·prime3v(SB), AX
-	MOVQ  AX, R12
-	SHRQ  $32, R12
-	XORQ  R12, AX
-
-	MOVQ AX, ret+24(FP)
-	RET
-
-// writeBlocks uses the same registers as above except that it uses AX to store
-// the d pointer.
-
-// func writeBlocks(d *Digest, b []byte) int
-TEXT ·writeBlocks(SB), NOSPLIT, $0-40
-	// Load fixed primes needed for round.
-	MOVQ ·prime1v(SB), R13
-	MOVQ ·prime2v(SB), R14
-
-	// Load slice.
-	MOVQ b_base+8(FP), CX
-	MOVQ b_len+16(FP), DX
-	LEAQ (CX)(DX*1), BX
-	SUBQ $32, BX
-
-	// Load vN from d.
-	MOVQ d+0(FP), AX
-	MOVQ 0(AX), R8   // v1
-	MOVQ 8(AX), R9   // v2
-	MOVQ 16(AX), R10 // v3
-	MOVQ 24(AX), R11 // v4
-
-	// We don't need to check the loop condition here; this function is
-	// always called with at least one block of data to process.
-blockLoop:
-	round(R8)
-	round(R9)
-	round(R10)
-	round(R11)
-
-	CMPQ CX, BX
-	JLE  blockLoop
-
-	// Copy vN back to d.
-	MOVQ R8, 0(AX)
-	MOVQ R9, 8(AX)
-	MOVQ R10, 16(AX)
-	MOVQ R11, 24(AX)
-
-	// The number of bytes written is CX minus the old base pointer.
-	SUBQ b_base+8(FP), CX
-	MOVQ CX, ret+32(FP)
-
-	RET
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_other.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_other.go
@@ -1,76 +0,0 @@
-// +build !amd64 appengine !gc purego
-
-package xxhash
-
-// Sum64 computes the 64-bit xxHash digest of b.
-func Sum64(b []byte) uint64 {
-	// A simpler version would be
-	//   d := New()
-	//   d.Write(b)
-	//   return d.Sum64()
-	// but this is faster, particularly for small inputs.
-
-	n := len(b)
-	var h uint64
-
-	if n >= 32 {
-		v1 := prime1v + prime2
-		v2 := prime2
-		v3 := uint64(0)
-		v4 := -prime1v
-		for len(b) >= 32 {
-			v1 = round(v1, u64(b[0:8:len(b)]))
-			v2 = round(v2, u64(b[8:16:len(b)]))
-			v3 = round(v3, u64(b[16:24:len(b)]))
-			v4 = round(v4, u64(b[24:32:len(b)]))
-			b = b[32:len(b):len(b)]
-		}
-		h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4)
-		h = mergeRound(h, v1)
-		h = mergeRound(h, v2)
-		h = mergeRound(h, v3)
-		h = mergeRound(h, v4)
-	} else {
-		h = prime5
-	}
-
-	h += uint64(n)
-
-	i, end := 0, len(b)
-	for ; i+8 <= end; i += 8 {
-		k1 := round(0, u64(b[i:i+8:len(b)]))
-		h ^= k1
-		h = rol27(h)*prime1 + prime4
-	}
-	if i+4 <= end {
-		h ^= uint64(u32(b[i:i+4:len(b)])) * prime1
-		h = rol23(h)*prime2 + prime3
-		i += 4
-	}
-	for ; i < end; i++ {
-		h ^= uint64(b[i]) * prime5
-		h = rol11(h) * prime1
-	}
-
-	h ^= h >> 33
-	h *= prime2
-	h ^= h >> 29
-	h *= prime3
-	h ^= h >> 32
-
-	return h
-}
-
-func writeBlocks(d *Digest, b []byte) int {
-	v1, v2, v3, v4 := d.v1, d.v2, d.v3, d.v4
-	n := len(b)
-	for len(b) >= 32 {
-		v1 = round(v1, u64(b[0:8:len(b)]))
-		v2 = round(v2, u64(b[8:16:len(b)]))
-		v3 = round(v3, u64(b[16:24:len(b)]))
-		v4 = round(v4, u64(b[24:32:len(b)]))
-		b = b[32:len(b):len(b)]
-	}
-	d.v1, d.v2, d.v3, d.v4 = v1, v2, v3, v4
-	return n - len(b)
-}
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_safe.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_safe.go
@@ -1,15 +0,0 @@
-// +build appengine
-
-// This file contains the safe implementations of otherwise unsafe-using code.
-
-package xxhash
-
-// Sum64String computes the 64-bit xxHash digest of s.
-func Sum64String(s string) uint64 {
-	return Sum64([]byte(s))
-}
-
-// WriteString adds more data to d. It always returns len(s), nil.
-func (d *Digest) WriteString(s string) (n int, err error) {
-	return d.Write([]byte(s))
-}
--- a/vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
+++ b/vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go
@@ -1,46 +0,0 @@
-// +build !appengine
-
-// This file encapsulates usage of unsafe.
-// xxhash_safe.go contains the safe implementations.
-
-package xxhash
-
-import (
-	"reflect"
-	"unsafe"
-)
-
-// Notes:
-//
-// See https://groups.google.com/d/msg/golang-nuts/dcjzJy-bSpw/tcZYBzQqAQAJ
-// for some discussion about these unsafe conversions.
-//
-// In the future it's possible that compiler optimizations will make these
-// unsafe operations unnecessary: https://golang.org/issue/2205.
-//
-// Both of these wrapper functions still incur function call overhead since they
-// will not be inlined. We could write Go/asm copies of Sum64 and Digest.Write
-// for strings to squeeze out a bit more speed. Mid-stack inlining should
-// eventually fix this.
-
-// Sum64String computes the 64-bit xxHash digest of s.
-// It may be faster than Sum64([]byte(s)) by avoiding a copy.
-func Sum64String(s string) uint64 {
-	var b []byte
-	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
-	bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
-	bh.Len = len(s)
-	bh.Cap = len(s)
-	return Sum64(b)
-}
-
-// WriteString adds more data to d. It always returns len(s), nil.
-// It may be faster than Write([]byte(s)) by avoiding a copy.
-func (d *Digest) WriteString(s string) (n int, err error) {
-	var b []byte
-	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
-	bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
-	bh.Len = len(s)
-	bh.Cap = len(s)
-	return d.Write(b)
-}
--- a/vendor/github.com/golang/protobuf/AUTHORS
+++ b/vendor/github.com/golang/protobuf/AUTHORS
@@ -1,3 +0,0 @@
-# This source code refers to The Go Authors for copyright purposes.
-# The master list of authors is in the main Go distribution,
-# visible at http://tip.golang.org/AUTHORS.
--- a/vendor/github.com/golang/protobuf/CONTRIBUTORS
+++ b/vendor/github.com/golang/protobuf/CONTRIBUTORS
@@ -1,3 +0,0 @@
-# This source code was written by the Go contributors.
-# The master list of contributors is in the main Go distribution,
-# visible at http://tip.golang.org/CONTRIBUTORS.
--- a/vendor/github.com/golang/protobuf/LICENSE
+++ b/vendor/github.com/golang/protobuf/LICENSE
@@ -1,28 +0,0 @@
-Copyright 2010 The Go Authors.  All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-    * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
--- a/vendor/github.com/golang/protobuf/proto/buffer.go
+++ b/vendor/github.com/golang/protobuf/proto/buffer.go
@@ -1,324 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"errors"
-	"fmt"
-
-	"google.golang.org/protobuf/encoding/prototext"
-	"google.golang.org/protobuf/encoding/protowire"
-	"google.golang.org/protobuf/runtime/protoimpl"
-)
-
-const (
-	WireVarint     = 0
-	WireFixed32    = 5
-	WireFixed64    = 1
-	WireBytes      = 2
-	WireStartGroup = 3
-	WireEndGroup   = 4
-)
-
-// EncodeVarint returns the varint encoded bytes of v.
-func EncodeVarint(v uint64) []byte {
-	return protowire.AppendVarint(nil, v)
-}
-
-// SizeVarint returns the length of the varint encoded bytes of v.
-// This is equal to len(EncodeVarint(v)).
-func SizeVarint(v uint64) int {
-	return protowire.SizeVarint(v)
-}
-
-// DecodeVarint parses a varint encoded integer from b,
-// returning the integer value and the length of the varint.
-// It returns (0, 0) if there is a parse error.
-func DecodeVarint(b []byte) (uint64, int) {
-	v, n := protowire.ConsumeVarint(b)
-	if n < 0 {
-		return 0, 0
-	}
-	return v, n
-}
-
-// Buffer is a buffer for encoding and decoding the protobuf wire format.
-// It may be reused between invocations to reduce memory usage.
-type Buffer struct {
-	buf           []byte
-	idx           int
-	deterministic bool
-}
-
-// NewBuffer allocates a new Buffer initialized with buf,
-// where the contents of buf are considered the unread portion of the buffer.
-func NewBuffer(buf []byte) *Buffer {
-	return &Buffer{buf: buf}
-}
-
-// SetDeterministic specifies whether to use deterministic serialization.
-//
-// Deterministic serialization guarantees that for a given binary, equal
-// messages will always be serialized to the same bytes. This implies:
-//
-//   - Repeated serialization of a message will return the same bytes.
-//   - Different processes of the same binary (which may be executing on
-//     different machines) will serialize equal messages to the same bytes.
-//
-// Note that the deterministic serialization is NOT canonical across
-// languages. It is not guaranteed to remain stable over time. It is unstable
-// across different builds with schema changes due to unknown fields.
-// Users who need canonical serialization (e.g., persistent storage in a
-// canonical form, fingerprinting, etc.) should define their own
-// canonicalization specification and implement their own serializer rather
-// than relying on this API.
-//
-// If deterministic serialization is requested, map entries will be sorted
-// by keys in lexographical order. This is an implementation detail and
-// subject to change.
-func (b *Buffer) SetDeterministic(deterministic bool) {
-	b.deterministic = deterministic
-}
-
-// SetBuf sets buf as the internal buffer,
-// where the contents of buf are considered the unread portion of the buffer.
-func (b *Buffer) SetBuf(buf []byte) {
-	b.buf = buf
-	b.idx = 0
-}
-
-// Reset clears the internal buffer of all written and unread data.
-func (b *Buffer) Reset() {
-	b.buf = b.buf[:0]
-	b.idx = 0
-}
-
-// Bytes returns the internal buffer.
-func (b *Buffer) Bytes() []byte {
-	return b.buf
-}
-
-// Unread returns the unread portion of the buffer.
-func (b *Buffer) Unread() []byte {
-	return b.buf[b.idx:]
-}
-
-// Marshal appends the wire-format encoding of m to the buffer.
-func (b *Buffer) Marshal(m Message) error {
-	var err error
-	b.buf, err = marshalAppend(b.buf, m, b.deterministic)
-	return err
-}
-
-// Unmarshal parses the wire-format message in the buffer and
-// places the decoded results in m.
-// It does not reset m before unmarshaling.
-func (b *Buffer) Unmarshal(m Message) error {
-	err := UnmarshalMerge(b.Unread(), m)
-	b.idx = len(b.buf)
-	return err
-}
-
-type unknownFields struct{ XXX_unrecognized protoimpl.UnknownFields }
-
-func (m *unknownFields) String() string { panic("not implemented") }
-func (m *unknownFields) Reset()         { panic("not implemented") }
-func (m *unknownFields) ProtoMessage()  { panic("not implemented") }
-
-// DebugPrint dumps the encoded bytes of b with a header and footer including s
-// to stdout. This is only intended for debugging.
-func (*Buffer) DebugPrint(s string, b []byte) {
-	m := MessageReflect(new(unknownFields))
-	m.SetUnknown(b)
-	b, _ = prototext.MarshalOptions{AllowPartial: true, Indent: "\t"}.Marshal(m.Interface())
-	fmt.Printf("==== %s ====\n%s==== %s ====\n", s, b, s)
-}
-
-// EncodeVarint appends an unsigned varint encoding to the buffer.
-func (b *Buffer) EncodeVarint(v uint64) error {
-	b.buf = protowire.AppendVarint(b.buf, v)
-	return nil
-}
-
-// EncodeZigzag32 appends a 32-bit zig-zag varint encoding to the buffer.
-func (b *Buffer) EncodeZigzag32(v uint64) error {
-	return b.EncodeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31))))
-}
-
-// EncodeZigzag64 appends a 64-bit zig-zag varint encoding to the buffer.
-func (b *Buffer) EncodeZigzag64(v uint64) error {
-	return b.EncodeVarint(uint64((uint64(v) << 1) ^ uint64((int64(v) >> 63))))
-}
-
-// EncodeFixed32 appends a 32-bit little-endian integer to the buffer.
-func (b *Buffer) EncodeFixed32(v uint64) error {
-	b.buf = protowire.AppendFixed32(b.buf, uint32(v))
-	return nil
-}
-
-// EncodeFixed64 appends a 64-bit little-endian integer to the buffer.
-func (b *Buffer) EncodeFixed64(v uint64) error {
-	b.buf = protowire.AppendFixed64(b.buf, uint64(v))
-	return nil
-}
-
-// EncodeRawBytes appends a length-prefixed raw bytes to the buffer.
-func (b *Buffer) EncodeRawBytes(v []byte) error {
-	b.buf = protowire.AppendBytes(b.buf, v)
-	return nil
-}
-
-// EncodeStringBytes appends a length-prefixed raw bytes to the buffer.
-// It does not validate whether v contains valid UTF-8.
-func (b *Buffer) EncodeStringBytes(v string) error {
-	b.buf = protowire.AppendString(b.buf, v)
-	return nil
-}
-
-// EncodeMessage appends a length-prefixed encoded message to the buffer.
-func (b *Buffer) EncodeMessage(m Message) error {
-	var err error
-	b.buf = protowire.AppendVarint(b.buf, uint64(Size(m)))
-	b.buf, err = marshalAppend(b.buf, m, b.deterministic)
-	return err
-}
-
-// DecodeVarint consumes an encoded unsigned varint from the buffer.
-func (b *Buffer) DecodeVarint() (uint64, error) {
-	v, n := protowire.ConsumeVarint(b.buf[b.idx:])
-	if n < 0 {
-		return 0, protowire.ParseError(n)
-	}
-	b.idx += n
-	return uint64(v), nil
-}
-
-// DecodeZigzag32 consumes an encoded 32-bit zig-zag varint from the buffer.
-func (b *Buffer) DecodeZigzag32() (uint64, error) {
-	v, err := b.DecodeVarint()
-	if err != nil {
-		return 0, err
-	}
-	return uint64((uint32(v) >> 1) ^ uint32((int32(v&1)<<31)>>31)), nil
-}
-
-// DecodeZigzag64 consumes an encoded 64-bit zig-zag varint from the buffer.
-func (b *Buffer) DecodeZigzag64() (uint64, error) {
-	v, err := b.DecodeVarint()
-	if err != nil {
-		return 0, err
-	}
-	return uint64((uint64(v) >> 1) ^ uint64((int64(v&1)<<63)>>63)), nil
-}
-
-// DecodeFixed32 consumes a 32-bit little-endian integer from the buffer.
-func (b *Buffer) DecodeFixed32() (uint64, error) {
-	v, n := protowire.ConsumeFixed32(b.buf[b.idx:])
-	if n < 0 {
-		return 0, protowire.ParseError(n)
-	}
-	b.idx += n
-	return uint64(v), nil
-}
-
-// DecodeFixed64 consumes a 64-bit little-endian integer from the buffer.
-func (b *Buffer) DecodeFixed64() (uint64, error) {
-	v, n := protowire.ConsumeFixed64(b.buf[b.idx:])
-	if n < 0 {
-		return 0, protowire.ParseError(n)
-	}
-	b.idx += n
-	return uint64(v), nil
-}
-
-// DecodeRawBytes consumes a length-prefixed raw bytes from the buffer.
-// If alloc is specified, it returns a copy the raw bytes
-// rather than a sub-slice of the buffer.
-func (b *Buffer) DecodeRawBytes(alloc bool) ([]byte, error) {
-	v, n := protowire.ConsumeBytes(b.buf[b.idx:])
-	if n < 0 {
-		return nil, protowire.ParseError(n)
-	}
-	b.idx += n
-	if alloc {
-		v = append([]byte(nil), v...)
-	}
-	return v, nil
-}
-
-// DecodeStringBytes consumes a length-prefixed raw bytes from the buffer.
-// It does not validate whether the raw bytes contain valid UTF-8.
-func (b *Buffer) DecodeStringBytes() (string, error) {
-	v, n := protowire.ConsumeString(b.buf[b.idx:])
-	if n < 0 {
-		return "", protowire.ParseError(n)
-	}
-	b.idx += n
-	return v, nil
-}
-
-// DecodeMessage consumes a length-prefixed message from the buffer.
-// It does not reset m before unmarshaling.
-func (b *Buffer) DecodeMessage(m Message) error {
-	v, err := b.DecodeRawBytes(false)
-	if err != nil {
-		return err
-	}
-	return UnmarshalMerge(v, m)
-}
-
-// DecodeGroup consumes a message group from the buffer.
-// It assumes that the start group marker has already been consumed and
-// consumes all bytes until (and including the end group marker).
-// It does not reset m before unmarshaling.
-func (b *Buffer) DecodeGroup(m Message) error {
-	v, n, err := consumeGroup(b.buf[b.idx:])
-	if err != nil {
-		return err
-	}
-	b.idx += n
-	return UnmarshalMerge(v, m)
-}
-
-// consumeGroup parses b until it finds an end group marker, returning
-// the raw bytes of the message (excluding the end group marker) and the
-// the total length of the message (including the end group marker).
-func consumeGroup(b []byte) ([]byte, int, error) {
-	b0 := b
-	depth := 1 // assume this follows a start group marker
-	for {
-		_, wtyp, tagLen := protowire.ConsumeTag(b)
-		if tagLen < 0 {
-			return nil, 0, protowire.ParseError(tagLen)
-		}
-		b = b[tagLen:]
-
-		var valLen int
-		switch wtyp {
-		case protowire.VarintType:
-			_, valLen = protowire.ConsumeVarint(b)
-		case protowire.Fixed32Type:
-			_, valLen = protowire.ConsumeFixed32(b)
-		case protowire.Fixed64Type:
-			_, valLen = protowire.ConsumeFixed64(b)
-		case protowire.BytesType:
-			_, valLen = protowire.ConsumeBytes(b)
-		case protowire.StartGroupType:
-			depth++
-		case protowire.EndGroupType:
-			depth--
-		default:
-			return nil, 0, errors.New("proto: cannot parse reserved wire type")
-		}
-		if valLen < 0 {
-			return nil, 0, protowire.ParseError(valLen)
-		}
-		b = b[valLen:]
-
-		if depth == 0 {
-			return b0[:len(b0)-len(b)-tagLen], len(b0) - len(b), nil
-		}
-	}
-}
--- a/vendor/github.com/golang/protobuf/proto/defaults.go
+++ b/vendor/github.com/golang/protobuf/proto/defaults.go
@@ -1,63 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"google.golang.org/protobuf/reflect/protoreflect"
-)
-
-// SetDefaults sets unpopulated scalar fields to their default values.
-// Fields within a oneof are not set even if they have a default value.
-// SetDefaults is recursively called upon any populated message fields.
-func SetDefaults(m Message) {
-	if m != nil {
-		setDefaults(MessageReflect(m))
-	}
-}
-
-func setDefaults(m protoreflect.Message) {
-	fds := m.Descriptor().Fields()
-	for i := 0; i < fds.Len(); i++ {
-		fd := fds.Get(i)
-		if !m.Has(fd) {
-			if fd.HasDefault() && fd.ContainingOneof() == nil {
-				v := fd.Default()
-				if fd.Kind() == protoreflect.BytesKind {
-					v = protoreflect.ValueOf(append([]byte(nil), v.Bytes()...)) // copy the default bytes
-				}
-				m.Set(fd, v)
-			}
-			continue
-		}
-	}
-
-	m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
-		switch {
-		// Handle singular message.
-		case fd.Cardinality() != protoreflect.Repeated:
-			if fd.Message() != nil {
-				setDefaults(m.Get(fd).Message())
-			}
-		// Handle list of messages.
-		case fd.IsList():
-			if fd.Message() != nil {
-				ls := m.Get(fd).List()
-				for i := 0; i < ls.Len(); i++ {
-					setDefaults(ls.Get(i).Message())
-				}
-			}
-		// Handle map of messages.
-		case fd.IsMap():
-			if fd.MapValue().Message() != nil {
-				ms := m.Get(fd).Map()
-				ms.Range(func(_ protoreflect.MapKey, v protoreflect.Value) bool {
-					setDefaults(v.Message())
-					return true
-				})
-			}
-		}
-		return true
-	})
-}
--- a/vendor/github.com/golang/protobuf/proto/deprecated.go
+++ b/vendor/github.com/golang/protobuf/proto/deprecated.go
@@ -1,113 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"strconv"
-
-	protoV2 "google.golang.org/protobuf/proto"
-)
-
-var (
-	// Deprecated: No longer returned.
-	ErrNil = errors.New("proto: Marshal called with nil")
-
-	// Deprecated: No longer returned.
-	ErrTooLarge = errors.New("proto: message encodes to over 2 GB")
-
-	// Deprecated: No longer returned.
-	ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof")
-)
-
-// Deprecated: Do not use.
-type Stats struct{ Emalloc, Dmalloc, Encode, Decode, Chit, Cmiss, Size uint64 }
-
-// Deprecated: Do not use.
-func GetStats() Stats { return Stats{} }
-
-// Deprecated: Do not use.
-func MarshalMessageSet(interface{}) ([]byte, error) {
-	return nil, errors.New("proto: not implemented")
-}
-
-// Deprecated: Do not use.
-func UnmarshalMessageSet([]byte, interface{}) error {
-	return errors.New("proto: not implemented")
-}
-
-// Deprecated: Do not use.
-func MarshalMessageSetJSON(interface{}) ([]byte, error) {
-	return nil, errors.New("proto: not implemented")
-}
-
-// Deprecated: Do not use.
-func UnmarshalMessageSetJSON([]byte, interface{}) error {
-	return errors.New("proto: not implemented")
-}
-
-// Deprecated: Do not use.
-func RegisterMessageSetType(Message, int32, string) {}
-
-// Deprecated: Do not use.
-func EnumName(m map[int32]string, v int32) string {
-	s, ok := m[v]
-	if ok {
-		return s
-	}
-	return strconv.Itoa(int(v))
-}
-
-// Deprecated: Do not use.
-func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
-	if data[0] == '"' {
-		// New style: enums are strings.
-		var repr string
-		if err := json.Unmarshal(data, &repr); err != nil {
-			return -1, err
-		}
-		val, ok := m[repr]
-		if !ok {
-			return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
-		}
-		return val, nil
-	}
-	// Old style: enums are ints.
-	var val int32
-	if err := json.Unmarshal(data, &val); err != nil {
-		return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
-	}
-	return val, nil
-}
-
-// Deprecated: Do not use; this type existed for intenal-use only.
-type InternalMessageInfo struct{}
-
-// Deprecated: Do not use; this method existed for intenal-use only.
-func (*InternalMessageInfo) DiscardUnknown(m Message) {
-	DiscardUnknown(m)
-}
-
-// Deprecated: Do not use; this method existed for intenal-use only.
-func (*InternalMessageInfo) Marshal(b []byte, m Message, deterministic bool) ([]byte, error) {
-	return protoV2.MarshalOptions{Deterministic: deterministic}.MarshalAppend(b, MessageV2(m))
-}
-
-// Deprecated: Do not use; this method existed for intenal-use only.
-func (*InternalMessageInfo) Merge(dst, src Message) {
-	protoV2.Merge(MessageV2(dst), MessageV2(src))
-}
-
-// Deprecated: Do not use; this method existed for intenal-use only.
-func (*InternalMessageInfo) Size(m Message) int {
-	return protoV2.Size(MessageV2(m))
-}
-
-// Deprecated: Do not use; this method existed for intenal-use only.
-func (*InternalMessageInfo) Unmarshal(m Message, b []byte) error {
-	return protoV2.UnmarshalOptions{Merge: true}.Unmarshal(b, MessageV2(m))
-}
--- a/vendor/github.com/golang/protobuf/proto/discard.go
+++ b/vendor/github.com/golang/protobuf/proto/discard.go
@@ -1,58 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"google.golang.org/protobuf/reflect/protoreflect"
-)
-
-// DiscardUnknown recursively discards all unknown fields from this message
-// and all embedded messages.
-//
-// When unmarshaling a message with unrecognized fields, the tags and values
-// of such fields are preserved in the Message. This allows a later call to
-// marshal to be able to produce a message that continues to have those
-// unrecognized fields. To avoid this, DiscardUnknown is used to
-// explicitly clear the unknown fields after unmarshaling.
-func DiscardUnknown(m Message) {
-	if m != nil {
-		discardUnknown(MessageReflect(m))
-	}
-}
-
-func discardUnknown(m protoreflect.Message) {
-	m.Range(func(fd protoreflect.FieldDescriptor, val protoreflect.Value) bool {
-		switch {
-		// Handle singular message.
-		case fd.Cardinality() != protoreflect.Repeated:
-			if fd.Message() != nil {
-				discardUnknown(m.Get(fd).Message())
-			}
-		// Handle list of messages.
-		case fd.IsList():
-			if fd.Message() != nil {
-				ls := m.Get(fd).List()
-				for i := 0; i < ls.Len(); i++ {
-					discardUnknown(ls.Get(i).Message())
-				}
-			}
-		// Handle map of messages.
-		case fd.IsMap():
-			if fd.MapValue().Message() != nil {
-				ms := m.Get(fd).Map()
-				ms.Range(func(_ protoreflect.MapKey, v protoreflect.Value) bool {
-					discardUnknown(v.Message())
-					return true
-				})
-			}
-		}
-		return true
-	})
-
-	// Discard unknown fields.
-	if len(m.GetUnknown()) > 0 {
-		m.SetUnknown(nil)
-	}
-}
--- a/vendor/github.com/golang/protobuf/proto/extensions.go
+++ b/vendor/github.com/golang/protobuf/proto/extensions.go
@@ -1,356 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"errors"
-	"fmt"
-	"reflect"
-
-	"google.golang.org/protobuf/encoding/protowire"
-	"google.golang.org/protobuf/proto"
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/reflect/protoregistry"
-	"google.golang.org/protobuf/runtime/protoiface"
-	"google.golang.org/protobuf/runtime/protoimpl"
-)
-
-type (
-	// ExtensionDesc represents an extension descriptor and
-	// is used to interact with an extension field in a message.
-	//
-	// Variables of this type are generated in code by protoc-gen-go.
-	ExtensionDesc = protoimpl.ExtensionInfo
-
-	// ExtensionRange represents a range of message extensions.
-	// Used in code generated by protoc-gen-go.
-	ExtensionRange = protoiface.ExtensionRangeV1
-
-	// Deprecated: Do not use; this is an internal type.
-	Extension = protoimpl.ExtensionFieldV1
-
-	// Deprecated: Do not use; this is an internal type.
-	XXX_InternalExtensions = protoimpl.ExtensionFields
-)
-
-// ErrMissingExtension reports whether the extension was not present.
-var ErrMissingExtension = errors.New("proto: missing extension")
-
-var errNotExtendable = errors.New("proto: not an extendable proto.Message")
-
-// HasExtension reports whether the extension field is present in m
-// either as an explicitly populated field or as an unknown field.
-func HasExtension(m Message, xt *ExtensionDesc) (has bool) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() {
-		return false
-	}
-
-	// Check whether any populated known field matches the field number.
-	xtd := xt.TypeDescriptor()
-	if isValidExtension(mr.Descriptor(), xtd) {
-		has = mr.Has(xtd)
-	} else {
-		mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
-			has = int32(fd.Number()) == xt.Field
-			return !has
-		})
-	}
-
-	// Check whether any unknown field matches the field number.
-	for b := mr.GetUnknown(); !has && len(b) > 0; {
-		num, _, n := protowire.ConsumeField(b)
-		has = int32(num) == xt.Field
-		b = b[n:]
-	}
-	return has
-}
-
-// ClearExtension removes the extension field from m
-// either as an explicitly populated field or as an unknown field.
-func ClearExtension(m Message, xt *ExtensionDesc) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() {
-		return
-	}
-
-	xtd := xt.TypeDescriptor()
-	if isValidExtension(mr.Descriptor(), xtd) {
-		mr.Clear(xtd)
-	} else {
-		mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
-			if int32(fd.Number()) == xt.Field {
-				mr.Clear(fd)
-				return false
-			}
-			return true
-		})
-	}
-	clearUnknown(mr, fieldNum(xt.Field))
-}
-
-// ClearAllExtensions clears all extensions from m.
-// This includes populated fields and unknown fields in the extension range.
-func ClearAllExtensions(m Message) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() {
-		return
-	}
-
-	mr.Range(func(fd protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
-		if fd.IsExtension() {
-			mr.Clear(fd)
-		}
-		return true
-	})
-	clearUnknown(mr, mr.Descriptor().ExtensionRanges())
-}
-
-// GetExtension retrieves a proto2 extended field from m.
-//
-// If the descriptor is type complete (i.e., ExtensionDesc.ExtensionType is non-nil),
-// then GetExtension parses the encoded field and returns a Go value of the specified type.
-// If the field is not present, then the default value is returned (if one is specified),
-// otherwise ErrMissingExtension is reported.
-//
-// If the descriptor is type incomplete (i.e., ExtensionDesc.ExtensionType is nil),
-// then GetExtension returns the raw encoded bytes for the extension field.
-func GetExtension(m Message, xt *ExtensionDesc) (interface{}, error) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
-		return nil, errNotExtendable
-	}
-
-	// Retrieve the unknown fields for this extension field.
-	var bo protoreflect.RawFields
-	for bi := mr.GetUnknown(); len(bi) > 0; {
-		num, _, n := protowire.ConsumeField(bi)
-		if int32(num) == xt.Field {
-			bo = append(bo, bi[:n]...)
-		}
-		bi = bi[n:]
-	}
-
-	// For type incomplete descriptors, only retrieve the unknown fields.
-	if xt.ExtensionType == nil {
-		return []byte(bo), nil
-	}
-
-	// If the extension field only exists as unknown fields, unmarshal it.
-	// This is rarely done since proto.Unmarshal eagerly unmarshals extensions.
-	xtd := xt.TypeDescriptor()
-	if !isValidExtension(mr.Descriptor(), xtd) {
-		return nil, fmt.Errorf("proto: bad extended type; %T does not extend %T", xt.ExtendedType, m)
-	}
-	if !mr.Has(xtd) && len(bo) > 0 {
-		m2 := mr.New()
-		if err := (proto.UnmarshalOptions{
-			Resolver: extensionResolver{xt},
-		}.Unmarshal(bo, m2.Interface())); err != nil {
-			return nil, err
-		}
-		if m2.Has(xtd) {
-			mr.Set(xtd, m2.Get(xtd))
-			clearUnknown(mr, fieldNum(xt.Field))
-		}
-	}
-
-	// Check whether the message has the extension field set or a default.
-	var pv protoreflect.Value
-	switch {
-	case mr.Has(xtd):
-		pv = mr.Get(xtd)
-	case xtd.HasDefault():
-		pv = xtd.Default()
-	default:
-		return nil, ErrMissingExtension
-	}
-
-	v := xt.InterfaceOf(pv)
-	rv := reflect.ValueOf(v)
-	if isScalarKind(rv.Kind()) {
-		rv2 := reflect.New(rv.Type())
-		rv2.Elem().Set(rv)
-		v = rv2.Interface()
-	}
-	return v, nil
-}
-
-// extensionResolver is a custom extension resolver that stores a single
-// extension type that takes precedence over the global registry.
-type extensionResolver struct{ xt protoreflect.ExtensionType }
-
-func (r extensionResolver) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
-	if xtd := r.xt.TypeDescriptor(); xtd.FullName() == field {
-		return r.xt, nil
-	}
-	return protoregistry.GlobalTypes.FindExtensionByName(field)
-}
-
-func (r extensionResolver) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
-	if xtd := r.xt.TypeDescriptor(); xtd.ContainingMessage().FullName() == message && xtd.Number() == field {
-		return r.xt, nil
-	}
-	return protoregistry.GlobalTypes.FindExtensionByNumber(message, field)
-}
-
-// GetExtensions returns a list of the extensions values present in m,
-// corresponding with the provided list of extension descriptors, xts.
-// If an extension is missing in m, the corresponding value is nil.
-func GetExtensions(m Message, xts []*ExtensionDesc) ([]interface{}, error) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() {
-		return nil, errNotExtendable
-	}
-
-	vs := make([]interface{}, len(xts))
-	for i, xt := range xts {
-		v, err := GetExtension(m, xt)
-		if err != nil {
-			if err == ErrMissingExtension {
-				continue
-			}
-			return vs, err
-		}
-		vs[i] = v
-	}
-	return vs, nil
-}
-
-// SetExtension sets an extension field in m to the provided value.
-func SetExtension(m Message, xt *ExtensionDesc, v interface{}) error {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
-		return errNotExtendable
-	}
-
-	rv := reflect.ValueOf(v)
-	if reflect.TypeOf(v) != reflect.TypeOf(xt.ExtensionType) {
-		return fmt.Errorf("proto: bad extension value type. got: %T, want: %T", v, xt.ExtensionType)
-	}
-	if rv.Kind() == reflect.Ptr {
-		if rv.IsNil() {
-			return fmt.Errorf("proto: SetExtension called with nil value of type %T", v)
-		}
-		if isScalarKind(rv.Elem().Kind()) {
-			v = rv.Elem().Interface()
-		}
-	}
-
-	xtd := xt.TypeDescriptor()
-	if !isValidExtension(mr.Descriptor(), xtd) {
-		return fmt.Errorf("proto: bad extended type; %T does not extend %T", xt.ExtendedType, m)
-	}
-	mr.Set(xtd, xt.ValueOf(v))
-	clearUnknown(mr, fieldNum(xt.Field))
-	return nil
-}
-
-// SetRawExtension inserts b into the unknown fields of m.
-//
-// Deprecated: Use Message.ProtoReflect.SetUnknown instead.
-func SetRawExtension(m Message, fnum int32, b []byte) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() {
-		return
-	}
-
-	// Verify that the raw field is valid.
-	for b0 := b; len(b0) > 0; {
-		num, _, n := protowire.ConsumeField(b0)
-		if int32(num) != fnum {
-			panic(fmt.Sprintf("mismatching field number: got %d, want %d", num, fnum))
-		}
-		b0 = b0[n:]
-	}
-
-	ClearExtension(m, &ExtensionDesc{Field: fnum})
-	mr.SetUnknown(append(mr.GetUnknown(), b...))
-}
-
-// ExtensionDescs returns a list of extension descriptors found in m,
-// containing descriptors for both populated extension fields in m and
-// also unknown fields of m that are in the extension range.
-// For the later case, an type incomplete descriptor is provided where only
-// the ExtensionDesc.Field field is populated.
-// The order of the extension descriptors is undefined.
-func ExtensionDescs(m Message) ([]*ExtensionDesc, error) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() || mr.Descriptor().ExtensionRanges().Len() == 0 {
-		return nil, errNotExtendable
-	}
-
-	// Collect a set of known extension descriptors.
-	extDescs := make(map[protoreflect.FieldNumber]*ExtensionDesc)
-	mr.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
-		if fd.IsExtension() {
-			xt := fd.(protoreflect.ExtensionTypeDescriptor)
-			if xd, ok := xt.Type().(*ExtensionDesc); ok {
-				extDescs[fd.Number()] = xd
-			}
-		}
-		return true
-	})
-
-	// Collect a set of unknown extension descriptors.
-	extRanges := mr.Descriptor().ExtensionRanges()
-	for b := mr.GetUnknown(); len(b) > 0; {
-		num, _, n := protowire.ConsumeField(b)
-		if extRanges.Has(num) && extDescs[num] == nil {
-			extDescs[num] = nil
-		}
-		b = b[n:]
-	}
-
-	// Transpose the set of descriptors into a list.
-	var xts []*ExtensionDesc
-	for num, xt := range extDescs {
-		if xt == nil {
-			xt = &ExtensionDesc{Field: int32(num)}
-		}
-		xts = append(xts, xt)
-	}
-	return xts, nil
-}
-
-// isValidExtension reports whether xtd is a valid extension descriptor for md.
-func isValidExtension(md protoreflect.MessageDescriptor, xtd protoreflect.ExtensionTypeDescriptor) bool {
-	return xtd.ContainingMessage() == md && md.ExtensionRanges().Has(xtd.Number())
-}
-
-// isScalarKind reports whether k is a protobuf scalar kind (except bytes).
-// This function exists for historical reasons since the representation of
-// scalars differs between v1 and v2, where v1 uses *T and v2 uses T.
-func isScalarKind(k reflect.Kind) bool {
-	switch k {
-	case reflect.Bool, reflect.Int32, reflect.Int64, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64, reflect.String:
-		return true
-	default:
-		return false
-	}
-}
-
-// clearUnknown removes unknown fields from m where remover.Has reports true.
-func clearUnknown(m protoreflect.Message, remover interface {
-	Has(protoreflect.FieldNumber) bool
-}) {
-	var bo protoreflect.RawFields
-	for bi := m.GetUnknown(); len(bi) > 0; {
-		num, _, n := protowire.ConsumeField(bi)
-		if !remover.Has(num) {
-			bo = append(bo, bi[:n]...)
-		}
-		bi = bi[n:]
-	}
-	if bi := m.GetUnknown(); len(bi) != len(bo) {
-		m.SetUnknown(bo)
-	}
-}
-
-type fieldNum protoreflect.FieldNumber
-
-func (n1 fieldNum) Has(n2 protoreflect.FieldNumber) bool {
-	return protoreflect.FieldNumber(n1) == n2
-}
--- a/vendor/github.com/golang/protobuf/proto/properties.go
+++ b/vendor/github.com/golang/protobuf/proto/properties.go
@@ -1,306 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"fmt"
-	"reflect"
-	"strconv"
-	"strings"
-	"sync"
-
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/runtime/protoimpl"
-)
-
-// StructProperties represents protocol buffer type information for a
-// generated protobuf message in the open-struct API.
-//
-// Deprecated: Do not use.
-type StructProperties struct {
-	// Prop are the properties for each field.
-	//
-	// Fields belonging to a oneof are stored in OneofTypes instead, with a
-	// single Properties representing the parent oneof held here.
-	//
-	// The order of Prop matches the order of fields in the Go struct.
-	// Struct fields that are not related to protobufs have a "XXX_" prefix
-	// in the Properties.Name and must be ignored by the user.
-	Prop []*Properties
-
-	// OneofTypes contains information about the oneof fields in this message.
-	// It is keyed by the protobuf field name.
-	OneofTypes map[string]*OneofProperties
-}
-
-// Properties represents the type information for a protobuf message field.
-//
-// Deprecated: Do not use.
-type Properties struct {
-	// Name is a placeholder name with little meaningful semantic value.
-	// If the name has an "XXX_" prefix, the entire Properties must be ignored.
-	Name string
-	// OrigName is the protobuf field name or oneof name.
-	OrigName string
-	// JSONName is the JSON name for the protobuf field.
-	JSONName string
-	// Enum is a placeholder name for enums.
-	// For historical reasons, this is neither the Go name for the enum,
-	// nor the protobuf name for the enum.
-	Enum string // Deprecated: Do not use.
-	// Weak contains the full name of the weakly referenced message.
-	Weak string
-	// Wire is a string representation of the wire type.
-	Wire string
-	// WireType is the protobuf wire type for the field.
-	WireType int
-	// Tag is the protobuf field number.
-	Tag int
-	// Required reports whether this is a required field.
-	Required bool
-	// Optional reports whether this is a optional field.
-	Optional bool
-	// Repeated reports whether this is a repeated field.
-	Repeated bool
-	// Packed reports whether this is a packed repeated field of scalars.
-	Packed bool
-	// Proto3 reports whether this field operates under the proto3 syntax.
-	Proto3 bool
-	// Oneof reports whether this field belongs within a oneof.
-	Oneof bool
-
-	// Default is the default value in string form.
-	Default string
-	// HasDefault reports whether the field has a default value.
-	HasDefault bool
-
-	// MapKeyProp is the properties for the key field for a map field.
-	MapKeyProp *Properties
-	// MapValProp is the properties for the value field for a map field.
-	MapValProp *Properties
-}
-
-// OneofProperties represents the type information for a protobuf oneof.
-//
-// Deprecated: Do not use.
-type OneofProperties struct {
-	// Type is a pointer to the generated wrapper type for the field value.
-	// This is nil for messages that are not in the open-struct API.
-	Type reflect.Type
-	// Field is the index into StructProperties.Prop for the containing oneof.
-	Field int
-	// Prop is the properties for the field.
-	Prop *Properties
-}
-
-// String formats the properties in the protobuf struct field tag style.
-func (p *Properties) String() string {
-	s := p.Wire
-	s += "," + strconv.Itoa(p.Tag)
-	if p.Required {
-		s += ",req"
-	}
-	if p.Optional {
-		s += ",opt"
-	}
-	if p.Repeated {
-		s += ",rep"
-	}
-	if p.Packed {
-		s += ",packed"
-	}
-	s += ",name=" + p.OrigName
-	if p.JSONName != "" {
-		s += ",json=" + p.JSONName
-	}
-	if len(p.Enum) > 0 {
-		s += ",enum=" + p.Enum
-	}
-	if len(p.Weak) > 0 {
-		s += ",weak=" + p.Weak
-	}
-	if p.Proto3 {
-		s += ",proto3"
-	}
-	if p.Oneof {
-		s += ",oneof"
-	}
-	if p.HasDefault {
-		s += ",def=" + p.Default
-	}
-	return s
-}
-
-// Parse populates p by parsing a string in the protobuf struct field tag style.
-func (p *Properties) Parse(tag string) {
-	// For example: "bytes,49,opt,name=foo,def=hello!"
-	for len(tag) > 0 {
-		i := strings.IndexByte(tag, ',')
-		if i < 0 {
-			i = len(tag)
-		}
-		switch s := tag[:i]; {
-		case strings.HasPrefix(s, "name="):
-			p.OrigName = s[len("name="):]
-		case strings.HasPrefix(s, "json="):
-			p.JSONName = s[len("json="):]
-		case strings.HasPrefix(s, "enum="):
-			p.Enum = s[len("enum="):]
-		case strings.HasPrefix(s, "weak="):
-			p.Weak = s[len("weak="):]
-		case strings.Trim(s, "0123456789") == "":
-			n, _ := strconv.ParseUint(s, 10, 32)
-			p.Tag = int(n)
-		case s == "opt":
-			p.Optional = true
-		case s == "req":
-			p.Required = true
-		case s == "rep":
-			p.Repeated = true
-		case s == "varint" || s == "zigzag32" || s == "zigzag64":
-			p.Wire = s
-			p.WireType = WireVarint
-		case s == "fixed32":
-			p.Wire = s
-			p.WireType = WireFixed32
-		case s == "fixed64":
-			p.Wire = s
-			p.WireType = WireFixed64
-		case s == "bytes":
-			p.Wire = s
-			p.WireType = WireBytes
-		case s == "group":
-			p.Wire = s
-			p.WireType = WireStartGroup
-		case s == "packed":
-			p.Packed = true
-		case s == "proto3":
-			p.Proto3 = true
-		case s == "oneof":
-			p.Oneof = true
-		case strings.HasPrefix(s, "def="):
-			// The default tag is special in that everything afterwards is the
-			// default regardless of the presence of commas.
-			p.HasDefault = true
-			p.Default, i = tag[len("def="):], len(tag)
-		}
-		tag = strings.TrimPrefix(tag[i:], ",")
-	}
-}
-
-// Init populates the properties from a protocol buffer struct tag.
-//
-// Deprecated: Do not use.
-func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
-	p.Name = name
-	p.OrigName = name
-	if tag == "" {
-		return
-	}
-	p.Parse(tag)
-
-	if typ != nil && typ.Kind() == reflect.Map {
-		p.MapKeyProp = new(Properties)
-		p.MapKeyProp.Init(nil, "Key", f.Tag.Get("protobuf_key"), nil)
-		p.MapValProp = new(Properties)
-		p.MapValProp.Init(nil, "Value", f.Tag.Get("protobuf_val"), nil)
-	}
-}
-
-var propertiesCache sync.Map // map[reflect.Type]*StructProperties
-
-// GetProperties returns the list of properties for the type represented by t,
-// which must be a generated protocol buffer message in the open-struct API,
-// where protobuf message fields are represented by exported Go struct fields.
-//
-// Deprecated: Use protobuf reflection instead.
-func GetProperties(t reflect.Type) *StructProperties {
-	if p, ok := propertiesCache.Load(t); ok {
-		return p.(*StructProperties)
-	}
-	p, _ := propertiesCache.LoadOrStore(t, newProperties(t))
-	return p.(*StructProperties)
-}
-
-func newProperties(t reflect.Type) *StructProperties {
-	if t.Kind() != reflect.Struct {
-		panic(fmt.Sprintf("%v is not a generated message in the open-struct API", t))
-	}
-
-	var hasOneof bool
-	prop := new(StructProperties)
-
-	// Construct a list of properties for each field in the struct.
-	for i := 0; i < t.NumField(); i++ {
-		p := new(Properties)
-		f := t.Field(i)
-		tagField := f.Tag.Get("protobuf")
-		p.Init(f.Type, f.Name, tagField, &f)
-
-		tagOneof := f.Tag.Get("protobuf_oneof")
-		if tagOneof != "" {
-			hasOneof = true
-			p.OrigName = tagOneof
-		}
-
-		// Rename unrelated struct fields with the "XXX_" prefix since so much
-		// user code simply checks for this to exclude special fields.
-		if tagField == "" && tagOneof == "" && !strings.HasPrefix(p.Name, "XXX_") {
-			p.Name = "XXX_" + p.Name
-			p.OrigName = "XXX_" + p.OrigName
-		} else if p.Weak != "" {
-			p.Name = p.OrigName // avoid possible "XXX_" prefix on weak field
-		}
-
-		prop.Prop = append(prop.Prop, p)
-	}
-
-	// Construct a mapping of oneof field names to properties.
-	if hasOneof {
-		var oneofWrappers []interface{}
-		if fn, ok := reflect.PtrTo(t).MethodByName("XXX_OneofFuncs"); ok {
-			oneofWrappers = fn.Func.Call([]reflect.Value{reflect.Zero(fn.Type.In(0))})[3].Interface().([]interface{})
-		}
-		if fn, ok := reflect.PtrTo(t).MethodByName("XXX_OneofWrappers"); ok {
-			oneofWrappers = fn.Func.Call([]reflect.Value{reflect.Zero(fn.Type.In(0))})[0].Interface().([]interface{})
-		}
-		if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(protoreflect.ProtoMessage); ok {
-			if m, ok := m.ProtoReflect().(interface{ ProtoMessageInfo() *protoimpl.MessageInfo }); ok {
-				oneofWrappers = m.ProtoMessageInfo().OneofWrappers
-			}
-		}
-
-		prop.OneofTypes = make(map[string]*OneofProperties)
-		for _, wrapper := range oneofWrappers {
-			p := &OneofProperties{
-				Type: reflect.ValueOf(wrapper).Type(), // *T
-				Prop: new(Properties),
-			}
-			f := p.Type.Elem().Field(0)
-			p.Prop.Name = f.Name
-			p.Prop.Parse(f.Tag.Get("protobuf"))
-
-			// Determine the struct field that contains this oneof.
-			// Each wrapper is assignable to exactly one parent field.
-			var foundOneof bool
-			for i := 0; i < t.NumField() && !foundOneof; i++ {
-				if p.Type.AssignableTo(t.Field(i).Type) {
-					p.Field = i
-					foundOneof = true
-				}
-			}
-			if !foundOneof {
-				panic(fmt.Sprintf("%v is not a generated message in the open-struct API", t))
-			}
-			prop.OneofTypes[p.Prop.OrigName] = p
-		}
-	}
-
-	return prop
-}
-
-func (sp *StructProperties) Len() int           { return len(sp.Prop) }
-func (sp *StructProperties) Less(i, j int) bool { return false }
-func (sp *StructProperties) Swap(i, j int)      { return }
--- a/vendor/github.com/golang/protobuf/proto/proto.go
+++ b/vendor/github.com/golang/protobuf/proto/proto.go
@@ -1,167 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package proto provides functionality for handling protocol buffer messages.
-// In particular, it provides marshaling and unmarshaling between a protobuf
-// message and the binary wire format.
-//
-// See https://developers.google.com/protocol-buffers/docs/gotutorial for
-// more information.
-//
-// Deprecated: Use the "google.golang.org/protobuf/proto" package instead.
-package proto
-
-import (
-	protoV2 "google.golang.org/protobuf/proto"
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/runtime/protoiface"
-	"google.golang.org/protobuf/runtime/protoimpl"
-)
-
-const (
-	ProtoPackageIsVersion1 = true
-	ProtoPackageIsVersion2 = true
-	ProtoPackageIsVersion3 = true
-	ProtoPackageIsVersion4 = true
-)
-
-// GeneratedEnum is any enum type generated by protoc-gen-go
-// which is a named int32 kind.
-// This type exists for documentation purposes.
-type GeneratedEnum interface{}
-
-// GeneratedMessage is any message type generated by protoc-gen-go
-// which is a pointer to a named struct kind.
-// This type exists for documentation purposes.
-type GeneratedMessage interface{}
-
-// Message is a protocol buffer message.
-//
-// This is the v1 version of the message interface and is marginally better
-// than an empty interface as it lacks any method to programatically interact
-// with the contents of the message.
-//
-// A v2 message is declared in "google.golang.org/protobuf/proto".Message and
-// exposes protobuf reflection as a first-class feature of the interface.
-//
-// To convert a v1 message to a v2 message, use the MessageV2 function.
-// To convert a v2 message to a v1 message, use the MessageV1 function.
-type Message = protoiface.MessageV1
-
-// MessageV1 converts either a v1 or v2 message to a v1 message.
-// It returns nil if m is nil.
-func MessageV1(m GeneratedMessage) protoiface.MessageV1 {
-	return protoimpl.X.ProtoMessageV1Of(m)
-}
-
-// MessageV2 converts either a v1 or v2 message to a v2 message.
-// It returns nil if m is nil.
-func MessageV2(m GeneratedMessage) protoV2.Message {
-	return protoimpl.X.ProtoMessageV2Of(m)
-}
-
-// MessageReflect returns a reflective view for a message.
-// It returns nil if m is nil.
-func MessageReflect(m Message) protoreflect.Message {
-	return protoimpl.X.MessageOf(m)
-}
-
-// Marshaler is implemented by messages that can marshal themselves.
-// This interface is used by the following functions: Size, Marshal,
-// Buffer.Marshal, and Buffer.EncodeMessage.
-//
-// Deprecated: Do not implement.
-type Marshaler interface {
-	// Marshal formats the encoded bytes of the message.
-	// It should be deterministic and emit valid protobuf wire data.
-	// The caller takes ownership of the returned buffer.
-	Marshal() ([]byte, error)
-}
-
-// Unmarshaler is implemented by messages that can unmarshal themselves.
-// This interface is used by the following functions: Unmarshal, UnmarshalMerge,
-// Buffer.Unmarshal, Buffer.DecodeMessage, and Buffer.DecodeGroup.
-//
-// Deprecated: Do not implement.
-type Unmarshaler interface {
-	// Unmarshal parses the encoded bytes of the protobuf wire input.
-	// The provided buffer is only valid for during method call.
-	// It should not reset the receiver message.
-	Unmarshal([]byte) error
-}
-
-// Merger is implemented by messages that can merge themselves.
-// This interface is used by the following functions: Clone and Merge.
-//
-// Deprecated: Do not implement.
-type Merger interface {
-	// Merge merges the contents of src into the receiver message.
-	// It clones all data structures in src such that it aliases no mutable
-	// memory referenced by src.
-	Merge(src Message)
-}
-
-// RequiredNotSetError is an error type returned when
-// marshaling or unmarshaling a message with missing required fields.
-type RequiredNotSetError struct {
-	err error
-}
-
-func (e *RequiredNotSetError) Error() string {
-	if e.err != nil {
-		return e.err.Error()
-	}
-	return "proto: required field not set"
-}
-func (e *RequiredNotSetError) RequiredNotSet() bool {
-	return true
-}
-
-func checkRequiredNotSet(m protoV2.Message) error {
-	if err := protoV2.CheckInitialized(m); err != nil {
-		return &RequiredNotSetError{err: err}
-	}
-	return nil
-}
-
-// Clone returns a deep copy of src.
-func Clone(src Message) Message {
-	return MessageV1(protoV2.Clone(MessageV2(src)))
-}
-
-// Merge merges src into dst, which must be messages of the same type.
-//
-// Populated scalar fields in src are copied to dst, while populated
-// singular messages in src are merged into dst by recursively calling Merge.
-// The elements of every list field in src is appended to the corresponded
-// list fields in dst. The entries of every map field in src is copied into
-// the corresponding map field in dst, possibly replacing existing entries.
-// The unknown fields of src are appended to the unknown fields of dst.
-func Merge(dst, src Message) {
-	protoV2.Merge(MessageV2(dst), MessageV2(src))
-}
-
-// Equal reports whether two messages are equal.
-// If two messages marshal to the same bytes under deterministic serialization,
-// then Equal is guaranteed to report true.
-//
-// Two messages are equal if they are the same protobuf message type,
-// have the same set of populated known and extension field values,
-// and the same set of unknown fields values.
-//
-// Scalar values are compared with the equivalent of the == operator in Go,
-// except bytes values which are compared using bytes.Equal and
-// floating point values which specially treat NaNs as equal.
-// Message values are compared by recursively calling Equal.
-// Lists are equal if each element value is also equal.
-// Maps are equal if they have the same set of keys, where the pair of values
-// for each key is also equal.
-func Equal(x, y Message) bool {
-	return protoV2.Equal(MessageV2(x), MessageV2(y))
-}
-
-func isMessageSet(md protoreflect.MessageDescriptor) bool {
-	ms, ok := md.(interface{ IsMessageSet() bool })
-	return ok && ms.IsMessageSet()
-}
--- a/vendor/github.com/golang/protobuf/proto/registry.go
+++ b/vendor/github.com/golang/protobuf/proto/registry.go
@@ -1,323 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"bytes"
-	"compress/gzip"
-	"fmt"
-	"io/ioutil"
-	"reflect"
-	"strings"
-	"sync"
-
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/reflect/protoregistry"
-	"google.golang.org/protobuf/runtime/protoimpl"
-)
-
-// filePath is the path to the proto source file.
-type filePath = string // e.g., "google/protobuf/descriptor.proto"
-
-// fileDescGZIP is the compressed contents of the encoded FileDescriptorProto.
-type fileDescGZIP = []byte
-
-var fileCache sync.Map // map[filePath]fileDescGZIP
-
-// RegisterFile is called from generated code to register the compressed
-// FileDescriptorProto with the file path for a proto source file.
-//
-// Deprecated: Use protoregistry.GlobalFiles.RegisterFile instead.
-func RegisterFile(s filePath, d fileDescGZIP) {
-	// Decompress the descriptor.
-	zr, err := gzip.NewReader(bytes.NewReader(d))
-	if err != nil {
-		panic(fmt.Sprintf("proto: invalid compressed file descriptor: %v", err))
-	}
-	b, err := ioutil.ReadAll(zr)
-	if err != nil {
-		panic(fmt.Sprintf("proto: invalid compressed file descriptor: %v", err))
-	}
-
-	// Construct a protoreflect.FileDescriptor from the raw descriptor.
-	// Note that DescBuilder.Build automatically registers the constructed
-	// file descriptor with the v2 registry.
-	protoimpl.DescBuilder{RawDescriptor: b}.Build()
-
-	// Locally cache the raw descriptor form for the file.
-	fileCache.Store(s, d)
-}
-
-// FileDescriptor returns the compressed FileDescriptorProto given the file path
-// for a proto source file. It returns nil if not found.
-//
-// Deprecated: Use protoregistry.GlobalFiles.FindFileByPath instead.
-func FileDescriptor(s filePath) fileDescGZIP {
-	if v, ok := fileCache.Load(s); ok {
-		return v.(fileDescGZIP)
-	}
-
-	// Find the descriptor in the v2 registry.
-	var b []byte
-	if fd, _ := protoregistry.GlobalFiles.FindFileByPath(s); fd != nil {
-		if fd, ok := fd.(interface{ ProtoLegacyRawDesc() []byte }); ok {
-			b = fd.ProtoLegacyRawDesc()
-		} else {
-			// TODO: Use protodesc.ToFileDescriptorProto to construct
-			// a descriptorpb.FileDescriptorProto and marshal it.
-			// However, doing so causes the proto package to have a dependency
-			// on descriptorpb, leading to cyclic dependency issues.
-		}
-	}
-
-	// Locally cache the raw descriptor form for the file.
-	if len(b) > 0 {
-		v, _ := fileCache.LoadOrStore(s, protoimpl.X.CompressGZIP(b))
-		return v.(fileDescGZIP)
-	}
-	return nil
-}
-
-// enumName is the name of an enum. For historical reasons, the enum name is
-// neither the full Go name nor the full protobuf name of the enum.
-// The name is the dot-separated combination of just the proto package that the
-// enum is declared within followed by the Go type name of the generated enum.
-type enumName = string // e.g., "my.proto.package.GoMessage_GoEnum"
-
-// enumsByName maps enum values by name to their numeric counterpart.
-type enumsByName = map[string]int32
-
-// enumsByNumber maps enum values by number to their name counterpart.
-type enumsByNumber = map[int32]string
-
-var enumCache sync.Map     // map[enumName]enumsByName
-var numFilesCache sync.Map // map[protoreflect.FullName]int
-
-// RegisterEnum is called from the generated code to register the mapping of
-// enum value names to enum numbers for the enum identified by s.
-//
-// Deprecated: Use protoregistry.GlobalTypes.RegisterEnum instead.
-func RegisterEnum(s enumName, _ enumsByNumber, m enumsByName) {
-	if _, ok := enumCache.Load(s); ok {
-		panic("proto: duplicate enum registered: " + s)
-	}
-	enumCache.Store(s, m)
-
-	// This does not forward registration to the v2 registry since this API
-	// lacks sufficient information to construct a complete v2 enum descriptor.
-}
-
-// EnumValueMap returns the mapping from enum value names to enum numbers for
-// the enum of the given name. It returns nil if not found.
-//
-// Deprecated: Use protoregistry.GlobalTypes.FindEnumByName instead.
-func EnumValueMap(s enumName) enumsByName {
-	if v, ok := enumCache.Load(s); ok {
-		return v.(enumsByName)
-	}
-
-	// Check whether the cache is stale. If the number of files in the current
-	// package differs, then it means that some enums may have been recently
-	// registered upstream that we do not know about.
-	var protoPkg protoreflect.FullName
-	if i := strings.LastIndexByte(s, '.'); i >= 0 {
-		protoPkg = protoreflect.FullName(s[:i])
-	}
-	v, _ := numFilesCache.Load(protoPkg)
-	numFiles, _ := v.(int)
-	if protoregistry.GlobalFiles.NumFilesByPackage(protoPkg) == numFiles {
-		return nil // cache is up-to-date; was not found earlier
-	}
-
-	// Update the enum cache for all enums declared in the given proto package.
-	numFiles = 0
-	protoregistry.GlobalFiles.RangeFilesByPackage(protoPkg, func(fd protoreflect.FileDescriptor) bool {
-		walkEnums(fd, func(ed protoreflect.EnumDescriptor) {
-			name := protoimpl.X.LegacyEnumName(ed)
-			if _, ok := enumCache.Load(name); !ok {
-				m := make(enumsByName)
-				evs := ed.Values()
-				for i := evs.Len() - 1; i >= 0; i-- {
-					ev := evs.Get(i)
-					m[string(ev.Name())] = int32(ev.Number())
-				}
-				enumCache.LoadOrStore(name, m)
-			}
-		})
-		numFiles++
-		return true
-	})
-	numFilesCache.Store(protoPkg, numFiles)
-
-	// Check cache again for enum map.
-	if v, ok := enumCache.Load(s); ok {
-		return v.(enumsByName)
-	}
-	return nil
-}
-
-// walkEnums recursively walks all enums declared in d.
-func walkEnums(d interface {
-	Enums() protoreflect.EnumDescriptors
-	Messages() protoreflect.MessageDescriptors
-}, f func(protoreflect.EnumDescriptor)) {
-	eds := d.Enums()
-	for i := eds.Len() - 1; i >= 0; i-- {
-		f(eds.Get(i))
-	}
-	mds := d.Messages()
-	for i := mds.Len() - 1; i >= 0; i-- {
-		walkEnums(mds.Get(i), f)
-	}
-}
-
-// messageName is the full name of protobuf message.
-type messageName = string
-
-var messageTypeCache sync.Map // map[messageName]reflect.Type
-
-// RegisterType is called from generated code to register the message Go type
-// for a message of the given name.
-//
-// Deprecated: Use protoregistry.GlobalTypes.RegisterMessage instead.
-func RegisterType(m Message, s messageName) {
-	mt := protoimpl.X.LegacyMessageTypeOf(m, protoreflect.FullName(s))
-	if err := protoregistry.GlobalTypes.RegisterMessage(mt); err != nil {
-		panic(err)
-	}
-	messageTypeCache.Store(s, reflect.TypeOf(m))
-}
-
-// RegisterMapType is called from generated code to register the Go map type
-// for a protobuf message representing a map entry.
-//
-// Deprecated: Do not use.
-func RegisterMapType(m interface{}, s messageName) {
-	t := reflect.TypeOf(m)
-	if t.Kind() != reflect.Map {
-		panic(fmt.Sprintf("invalid map kind: %v", t))
-	}
-	if _, ok := messageTypeCache.Load(s); ok {
-		panic(fmt.Errorf("proto: duplicate proto message registered: %s", s))
-	}
-	messageTypeCache.Store(s, t)
-}
-
-// MessageType returns the message type for a named message.
-// It returns nil if not found.
-//
-// Deprecated: Use protoregistry.GlobalTypes.FindMessageByName instead.
-func MessageType(s messageName) reflect.Type {
-	if v, ok := messageTypeCache.Load(s); ok {
-		return v.(reflect.Type)
-	}
-
-	// Derive the message type from the v2 registry.
-	var t reflect.Type
-	if mt, _ := protoregistry.GlobalTypes.FindMessageByName(protoreflect.FullName(s)); mt != nil {
-		t = messageGoType(mt)
-	}
-
-	// If we could not get a concrete type, it is possible that it is a
-	// pseudo-message for a map entry.
-	if t == nil {
-		d, _ := protoregistry.GlobalFiles.FindDescriptorByName(protoreflect.FullName(s))
-		if md, _ := d.(protoreflect.MessageDescriptor); md != nil && md.IsMapEntry() {
-			kt := goTypeForField(md.Fields().ByNumber(1))
-			vt := goTypeForField(md.Fields().ByNumber(2))
-			t = reflect.MapOf(kt, vt)
-		}
-	}
-
-	// Locally cache the message type for the given name.
-	if t != nil {
-		v, _ := messageTypeCache.LoadOrStore(s, t)
-		return v.(reflect.Type)
-	}
-	return nil
-}
-
-func goTypeForField(fd protoreflect.FieldDescriptor) reflect.Type {
-	switch k := fd.Kind(); k {
-	case protoreflect.EnumKind:
-		if et, _ := protoregistry.GlobalTypes.FindEnumByName(fd.Enum().FullName()); et != nil {
-			return enumGoType(et)
-		}
-		return reflect.TypeOf(protoreflect.EnumNumber(0))
-	case protoreflect.MessageKind, protoreflect.GroupKind:
-		if mt, _ := protoregistry.GlobalTypes.FindMessageByName(fd.Message().FullName()); mt != nil {
-			return messageGoType(mt)
-		}
-		return reflect.TypeOf((*protoreflect.Message)(nil)).Elem()
-	default:
-		return reflect.TypeOf(fd.Default().Interface())
-	}
-}
-
-func enumGoType(et protoreflect.EnumType) reflect.Type {
-	return reflect.TypeOf(et.New(0))
-}
-
-func messageGoType(mt protoreflect.MessageType) reflect.Type {
-	return reflect.TypeOf(MessageV1(mt.Zero().Interface()))
-}
-
-// MessageName returns the full protobuf name for the given message type.
-//
-// Deprecated: Use protoreflect.MessageDescriptor.FullName instead.
-func MessageName(m Message) messageName {
-	if m == nil {
-		return ""
-	}
-	if m, ok := m.(interface{ XXX_MessageName() messageName }); ok {
-		return m.XXX_MessageName()
-	}
-	return messageName(protoimpl.X.MessageDescriptorOf(m).FullName())
-}
-
-// RegisterExtension is called from the generated code to register
-// the extension descriptor.
-//
-// Deprecated: Use protoregistry.GlobalTypes.RegisterExtension instead.
-func RegisterExtension(d *ExtensionDesc) {
-	if err := protoregistry.GlobalTypes.RegisterExtension(d); err != nil {
-		panic(err)
-	}
-}
-
-type extensionsByNumber = map[int32]*ExtensionDesc
-
-var extensionCache sync.Map // map[messageName]extensionsByNumber
-
-// RegisteredExtensions returns a map of the registered extensions for the
-// provided protobuf message, indexed by the extension field number.
-//
-// Deprecated: Use protoregistry.GlobalTypes.RangeExtensionsByMessage instead.
-func RegisteredExtensions(m Message) extensionsByNumber {
-	// Check whether the cache is stale. If the number of extensions for
-	// the given message differs, then it means that some extensions were
-	// recently registered upstream that we do not know about.
-	s := MessageName(m)
-	v, _ := extensionCache.Load(s)
-	xs, _ := v.(extensionsByNumber)
-	if protoregistry.GlobalTypes.NumExtensionsByMessage(protoreflect.FullName(s)) == len(xs) {
-		return xs // cache is up-to-date
-	}
-
-	// Cache is stale, re-compute the extensions map.
-	xs = make(extensionsByNumber)
-	protoregistry.GlobalTypes.RangeExtensionsByMessage(protoreflect.FullName(s), func(xt protoreflect.ExtensionType) bool {
-		if xd, ok := xt.(*ExtensionDesc); ok {
-			xs[int32(xt.TypeDescriptor().Number())] = xd
-		} else {
-			// TODO: This implies that the protoreflect.ExtensionType is a
-			// custom type not generated by protoc-gen-go. We could try and
-			// convert the type to an ExtensionDesc.
-		}
-		return true
-	})
-	extensionCache.Store(s, xs)
-	return xs
-}
--- a/vendor/github.com/golang/protobuf/proto/text_decode.go
+++ b/vendor/github.com/golang/protobuf/proto/text_decode.go
@@ -1,801 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"encoding"
-	"errors"
-	"fmt"
-	"reflect"
-	"strconv"
-	"strings"
-	"unicode/utf8"
-
-	"google.golang.org/protobuf/encoding/prototext"
-	protoV2 "google.golang.org/protobuf/proto"
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/reflect/protoregistry"
-)
-
-const wrapTextUnmarshalV2 = false
-
-// ParseError is returned by UnmarshalText.
-type ParseError struct {
-	Message string
-
-	// Deprecated: Do not use.
-	Line, Offset int
-}
-
-func (e *ParseError) Error() string {
-	if wrapTextUnmarshalV2 {
-		return e.Message
-	}
-	if e.Line == 1 {
-		return fmt.Sprintf("line 1.%d: %v", e.Offset, e.Message)
-	}
-	return fmt.Sprintf("line %d: %v", e.Line, e.Message)
-}
-
-// UnmarshalText parses a proto text formatted string into m.
-func UnmarshalText(s string, m Message) error {
-	if u, ok := m.(encoding.TextUnmarshaler); ok {
-		return u.UnmarshalText([]byte(s))
-	}
-
-	m.Reset()
-	mi := MessageV2(m)
-
-	if wrapTextUnmarshalV2 {
-		err := prototext.UnmarshalOptions{
-			AllowPartial: true,
-		}.Unmarshal([]byte(s), mi)
-		if err != nil {
-			return &ParseError{Message: err.Error()}
-		}
-		return checkRequiredNotSet(mi)
-	} else {
-		if err := newTextParser(s).unmarshalMessage(mi.ProtoReflect(), ""); err != nil {
-			return err
-		}
-		return checkRequiredNotSet(mi)
-	}
-}
-
-type textParser struct {
-	s            string // remaining input
-	done         bool   // whether the parsing is finished (success or error)
-	backed       bool   // whether back() was called
-	offset, line int
-	cur          token
-}
-
-type token struct {
-	value    string
-	err      *ParseError
-	line     int    // line number
-	offset   int    // byte number from start of input, not start of line
-	unquoted string // the unquoted version of value, if it was a quoted string
-}
-
-func newTextParser(s string) *textParser {
-	p := new(textParser)
-	p.s = s
-	p.line = 1
-	p.cur.line = 1
-	return p
-}
-
-func (p *textParser) unmarshalMessage(m protoreflect.Message, terminator string) (err error) {
-	md := m.Descriptor()
-	fds := md.Fields()
-
-	// A struct is a sequence of "name: value", terminated by one of
-	// '>' or '}', or the end of the input.  A name may also be
-	// "[extension]" or "[type/url]".
-	//
-	// The whole struct can also be an expanded Any message, like:
-	// [type/url] < ... struct contents ... >
-	seen := make(map[protoreflect.FieldNumber]bool)
-	for {
-		tok := p.next()
-		if tok.err != nil {
-			return tok.err
-		}
-		if tok.value == terminator {
-			break
-		}
-		if tok.value == "[" {
-			if err := p.unmarshalExtensionOrAny(m, seen); err != nil {
-				return err
-			}
-			continue
-		}
-
-		// This is a normal, non-extension field.
-		name := protoreflect.Name(tok.value)
-		fd := fds.ByName(name)
-		switch {
-		case fd == nil:
-			gd := fds.ByName(protoreflect.Name(strings.ToLower(string(name))))
-			if gd != nil && gd.Kind() == protoreflect.GroupKind && gd.Message().Name() == name {
-				fd = gd
-			}
-		case fd.Kind() == protoreflect.GroupKind && fd.Message().Name() != name:
-			fd = nil
-		case fd.IsWeak() && fd.Message().IsPlaceholder():
-			fd = nil
-		}
-		if fd == nil {
-			typeName := string(md.FullName())
-			if m, ok := m.Interface().(Message); ok {
-				t := reflect.TypeOf(m)
-				if t.Kind() == reflect.Ptr {
-					typeName = t.Elem().String()
-				}
-			}
-			return p.errorf("unknown field name %q in %v", name, typeName)
-		}
-		if od := fd.ContainingOneof(); od != nil && m.WhichOneof(od) != nil {
-			return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, od.Name())
-		}
-		if fd.Cardinality() != protoreflect.Repeated && seen[fd.Number()] {
-			return p.errorf("non-repeated field %q was repeated", fd.Name())
-		}
-		seen[fd.Number()] = true
-
-		// Consume any colon.
-		if err := p.checkForColon(fd); err != nil {
-			return err
-		}
-
-		// Parse into the field.
-		v := m.Get(fd)
-		if !m.Has(fd) && (fd.IsList() || fd.IsMap() || fd.Message() != nil) {
-			v = m.Mutable(fd)
-		}
-		if v, err = p.unmarshalValue(v, fd); err != nil {
-			return err
-		}
-		m.Set(fd, v)
-
-		if err := p.consumeOptionalSeparator(); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (p *textParser) unmarshalExtensionOrAny(m protoreflect.Message, seen map[protoreflect.FieldNumber]bool) error {
-	name, err := p.consumeExtensionOrAnyName()
-	if err != nil {
-		return err
-	}
-
-	// If it contains a slash, it's an Any type URL.
-	if slashIdx := strings.LastIndex(name, "/"); slashIdx >= 0 {
-		tok := p.next()
-		if tok.err != nil {
-			return tok.err
-		}
-		// consume an optional colon
-		if tok.value == ":" {
-			tok = p.next()
-			if tok.err != nil {
-				return tok.err
-			}
-		}
-
-		var terminator string
-		switch tok.value {
-		case "<":
-			terminator = ">"
-		case "{":
-			terminator = "}"
-		default:
-			return p.errorf("expected '{' or '<', found %q", tok.value)
-		}
-
-		mt, err := protoregistry.GlobalTypes.FindMessageByURL(name)
-		if err != nil {
-			return p.errorf("unrecognized message %q in google.protobuf.Any", name[slashIdx+len("/"):])
-		}
-		m2 := mt.New()
-		if err := p.unmarshalMessage(m2, terminator); err != nil {
-			return err
-		}
-		b, err := protoV2.Marshal(m2.Interface())
-		if err != nil {
-			return p.errorf("failed to marshal message of type %q: %v", name[slashIdx+len("/"):], err)
-		}
-
-		urlFD := m.Descriptor().Fields().ByName("type_url")
-		valFD := m.Descriptor().Fields().ByName("value")
-		if seen[urlFD.Number()] {
-			return p.errorf("Any message unpacked multiple times, or %q already set", urlFD.Name())
-		}
-		if seen[valFD.Number()] {
-			return p.errorf("Any message unpacked multiple times, or %q already set", valFD.Name())
-		}
-		m.Set(urlFD, protoreflect.ValueOfString(name))
-		m.Set(valFD, protoreflect.ValueOfBytes(b))
-		seen[urlFD.Number()] = true
-		seen[valFD.Number()] = true
-		return nil
-	}
-
-	xname := protoreflect.FullName(name)
-	xt, _ := protoregistry.GlobalTypes.FindExtensionByName(xname)
-	if xt == nil && isMessageSet(m.Descriptor()) {
-		xt, _ = protoregistry.GlobalTypes.FindExtensionByName(xname.Append("message_set_extension"))
-	}
-	if xt == nil {
-		return p.errorf("unrecognized extension %q", name)
-	}
-	fd := xt.TypeDescriptor()
-	if fd.ContainingMessage().FullName() != m.Descriptor().FullName() {
-		return p.errorf("extension field %q does not extend message %q", name, m.Descriptor().FullName())
-	}
-
-	if err := p.checkForColon(fd); err != nil {
-		return err
-	}
-
-	v := m.Get(fd)
-	if !m.Has(fd) && (fd.IsList() || fd.IsMap() || fd.Message() != nil) {
-		v = m.Mutable(fd)
-	}
-	v, err = p.unmarshalValue(v, fd)
-	if err != nil {
-		return err
-	}
-	m.Set(fd, v)
-	return p.consumeOptionalSeparator()
-}
-
-func (p *textParser) unmarshalValue(v protoreflect.Value, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
-	tok := p.next()
-	if tok.err != nil {
-		return v, tok.err
-	}
-	if tok.value == "" {
-		return v, p.errorf("unexpected EOF")
-	}
-
-	switch {
-	case fd.IsList():
-		lv := v.List()
-		var err error
-		if tok.value == "[" {
-			// Repeated field with list notation, like [1,2,3].
-			for {
-				vv := lv.NewElement()
-				vv, err = p.unmarshalSingularValue(vv, fd)
-				if err != nil {
-					return v, err
-				}
-				lv.Append(vv)
-
-				tok := p.next()
-				if tok.err != nil {
-					return v, tok.err
-				}
-				if tok.value == "]" {
-					break
-				}
-				if tok.value != "," {
-					return v, p.errorf("Expected ']' or ',' found %q", tok.value)
-				}
-			}
-			return v, nil
-		}
-
-		// One value of the repeated field.
-		p.back()
-		vv := lv.NewElement()
-		vv, err = p.unmarshalSingularValue(vv, fd)
-		if err != nil {
-			return v, err
-		}
-		lv.Append(vv)
-		return v, nil
-	case fd.IsMap():
-		// The map entry should be this sequence of tokens:
-		//	< key : KEY value : VALUE >
-		// However, implementations may omit key or value, and technically
-		// we should support them in any order.
-		var terminator string
-		switch tok.value {
-		case "<":
-			terminator = ">"
-		case "{":
-			terminator = "}"
-		default:
-			return v, p.errorf("expected '{' or '<', found %q", tok.value)
-		}
-
-		keyFD := fd.MapKey()
-		valFD := fd.MapValue()
-
-		mv := v.Map()
-		kv := keyFD.Default()
-		vv := mv.NewValue()
-		for {
-			tok := p.next()
-			if tok.err != nil {
-				return v, tok.err
-			}
-			if tok.value == terminator {
-				break
-			}
-			var err error
-			switch tok.value {
-			case "key":
-				if err := p.consumeToken(":"); err != nil {
-					return v, err
-				}
-				if kv, err = p.unmarshalSingularValue(kv, keyFD); err != nil {
-					return v, err
-				}
-				if err := p.consumeOptionalSeparator(); err != nil {
-					return v, err
-				}
-			case "value":
-				if err := p.checkForColon(valFD); err != nil {
-					return v, err
-				}
-				if vv, err = p.unmarshalSingularValue(vv, valFD); err != nil {
-					return v, err
-				}
-				if err := p.consumeOptionalSeparator(); err != nil {
-					return v, err
-				}
-			default:
-				p.back()
-				return v, p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value)
-			}
-		}
-		mv.Set(kv.MapKey(), vv)
-		return v, nil
-	default:
-		p.back()
-		return p.unmarshalSingularValue(v, fd)
-	}
-}
-
-func (p *textParser) unmarshalSingularValue(v protoreflect.Value, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
-	tok := p.next()
-	if tok.err != nil {
-		return v, tok.err
-	}
-	if tok.value == "" {
-		return v, p.errorf("unexpected EOF")
-	}
-
-	switch fd.Kind() {
-	case protoreflect.BoolKind:
-		switch tok.value {
-		case "true", "1", "t", "True":
-			return protoreflect.ValueOfBool(true), nil
-		case "false", "0", "f", "False":
-			return protoreflect.ValueOfBool(false), nil
-		}
-	case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind:
-		if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
-			return protoreflect.ValueOfInt32(int32(x)), nil
-		}
-
-		// The C++ parser accepts large positive hex numbers that uses
-		// two's complement arithmetic to represent negative numbers.
-		// This feature is here for backwards compatibility with C++.
-		if strings.HasPrefix(tok.value, "0x") {
-			if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
-				return protoreflect.ValueOfInt32(int32(-(int64(^x) + 1))), nil
-			}
-		}
-	case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
-		if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
-			return protoreflect.ValueOfInt64(int64(x)), nil
-		}
-
-		// The C++ parser accepts large positive hex numbers that uses
-		// two's complement arithmetic to represent negative numbers.
-		// This feature is here for backwards compatibility with C++.
-		if strings.HasPrefix(tok.value, "0x") {
-			if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
-				return protoreflect.ValueOfInt64(int64(-(int64(^x) + 1))), nil
-			}
-		}
-	case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
-		if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
-			return protoreflect.ValueOfUint32(uint32(x)), nil
-		}
-	case protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
-		if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
-			return protoreflect.ValueOfUint64(uint64(x)), nil
-		}
-	case protoreflect.FloatKind:
-		// Ignore 'f' for compatibility with output generated by C++,
-		// but don't remove 'f' when the value is "-inf" or "inf".
-		v := tok.value
-		if strings.HasSuffix(v, "f") && v != "-inf" && v != "inf" {
-			v = v[:len(v)-len("f")]
-		}
-		if x, err := strconv.ParseFloat(v, 32); err == nil {
-			return protoreflect.ValueOfFloat32(float32(x)), nil
-		}
-	case protoreflect.DoubleKind:
-		// Ignore 'f' for compatibility with output generated by C++,
-		// but don't remove 'f' when the value is "-inf" or "inf".
-		v := tok.value
-		if strings.HasSuffix(v, "f") && v != "-inf" && v != "inf" {
-			v = v[:len(v)-len("f")]
-		}
-		if x, err := strconv.ParseFloat(v, 64); err == nil {
-			return protoreflect.ValueOfFloat64(float64(x)), nil
-		}
-	case protoreflect.StringKind:
-		if isQuote(tok.value[0]) {
-			return protoreflect.ValueOfString(tok.unquoted), nil
-		}
-	case protoreflect.BytesKind:
-		if isQuote(tok.value[0]) {
-			return protoreflect.ValueOfBytes([]byte(tok.unquoted)), nil
-		}
-	case protoreflect.EnumKind:
-		if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
-			return protoreflect.ValueOfEnum(protoreflect.EnumNumber(x)), nil
-		}
-		vd := fd.Enum().Values().ByName(protoreflect.Name(tok.value))
-		if vd != nil {
-			return protoreflect.ValueOfEnum(vd.Number()), nil
-		}
-	case protoreflect.MessageKind, protoreflect.GroupKind:
-		var terminator string
-		switch tok.value {
-		case "{":
-			terminator = "}"
-		case "<":
-			terminator = ">"
-		default:
-			return v, p.errorf("expected '{' or '<', found %q", tok.value)
-		}
-		err := p.unmarshalMessage(v.Message(), terminator)
-		return v, err
-	default:
-		panic(fmt.Sprintf("invalid kind %v", fd.Kind()))
-	}
-	return v, p.errorf("invalid %v: %v", fd.Kind(), tok.value)
-}
-
-// Consume a ':' from the input stream (if the next token is a colon),
-// returning an error if a colon is needed but not present.
-func (p *textParser) checkForColon(fd protoreflect.FieldDescriptor) *ParseError {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value != ":" {
-		if fd.Message() == nil {
-			return p.errorf("expected ':', found %q", tok.value)
-		}
-		p.back()
-	}
-	return nil
-}
-
-// consumeExtensionOrAnyName consumes an extension name or an Any type URL and
-// the following ']'. It returns the name or URL consumed.
-func (p *textParser) consumeExtensionOrAnyName() (string, error) {
-	tok := p.next()
-	if tok.err != nil {
-		return "", tok.err
-	}
-
-	// If extension name or type url is quoted, it's a single token.
-	if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
-		name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
-		if err != nil {
-			return "", err
-		}
-		return name, p.consumeToken("]")
-	}
-
-	// Consume everything up to "]"
-	var parts []string
-	for tok.value != "]" {
-		parts = append(parts, tok.value)
-		tok = p.next()
-		if tok.err != nil {
-			return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
-		}
-		if p.done && tok.value != "]" {
-			return "", p.errorf("unclosed type_url or extension name")
-		}
-	}
-	return strings.Join(parts, ""), nil
-}
-
-// consumeOptionalSeparator consumes an optional semicolon or comma.
-// It is used in unmarshalMessage to provide backward compatibility.
-func (p *textParser) consumeOptionalSeparator() error {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value != ";" && tok.value != "," {
-		p.back()
-	}
-	return nil
-}
-
-func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
-	pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
-	p.cur.err = pe
-	p.done = true
-	return pe
-}
-
-func (p *textParser) skipWhitespace() {
-	i := 0
-	for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
-		if p.s[i] == '#' {
-			// comment; skip to end of line or input
-			for i < len(p.s) && p.s[i] != '\n' {
-				i++
-			}
-			if i == len(p.s) {
-				break
-			}
-		}
-		if p.s[i] == '\n' {
-			p.line++
-		}
-		i++
-	}
-	p.offset += i
-	p.s = p.s[i:len(p.s)]
-	if len(p.s) == 0 {
-		p.done = true
-	}
-}
-
-func (p *textParser) advance() {
-	// Skip whitespace
-	p.skipWhitespace()
-	if p.done {
-		return
-	}
-
-	// Start of non-whitespace
-	p.cur.err = nil
-	p.cur.offset, p.cur.line = p.offset, p.line
-	p.cur.unquoted = ""
-	switch p.s[0] {
-	case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
-		// Single symbol
-		p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
-	case '"', '\'':
-		// Quoted string
-		i := 1
-		for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
-			if p.s[i] == '\\' && i+1 < len(p.s) {
-				// skip escaped char
-				i++
-			}
-			i++
-		}
-		if i >= len(p.s) || p.s[i] != p.s[0] {
-			p.errorf("unmatched quote")
-			return
-		}
-		unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
-		if err != nil {
-			p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
-			return
-		}
-		p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
-		p.cur.unquoted = unq
-	default:
-		i := 0
-		for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
-			i++
-		}
-		if i == 0 {
-			p.errorf("unexpected byte %#x", p.s[0])
-			return
-		}
-		p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
-	}
-	p.offset += len(p.cur.value)
-}
-
-// Back off the parser by one token. Can only be done between calls to next().
-// It makes the next advance() a no-op.
-func (p *textParser) back() { p.backed = true }
-
-// Advances the parser and returns the new current token.
-func (p *textParser) next() *token {
-	if p.backed || p.done {
-		p.backed = false
-		return &p.cur
-	}
-	p.advance()
-	if p.done {
-		p.cur.value = ""
-	} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
-		// Look for multiple quoted strings separated by whitespace,
-		// and concatenate them.
-		cat := p.cur
-		for {
-			p.skipWhitespace()
-			if p.done || !isQuote(p.s[0]) {
-				break
-			}
-			p.advance()
-			if p.cur.err != nil {
-				return &p.cur
-			}
-			cat.value += " " + p.cur.value
-			cat.unquoted += p.cur.unquoted
-		}
-		p.done = false // parser may have seen EOF, but we want to return cat
-		p.cur = cat
-	}
-	return &p.cur
-}
-
-func (p *textParser) consumeToken(s string) error {
-	tok := p.next()
-	if tok.err != nil {
-		return tok.err
-	}
-	if tok.value != s {
-		p.back()
-		return p.errorf("expected %q, found %q", s, tok.value)
-	}
-	return nil
-}
-
-var errBadUTF8 = errors.New("proto: bad UTF-8")
-
-func unquoteC(s string, quote rune) (string, error) {
-	// This is based on C++'s tokenizer.cc.
-	// Despite its name, this is *not* parsing C syntax.
-	// For instance, "\0" is an invalid quoted string.
-
-	// Avoid allocation in trivial cases.
-	simple := true
-	for _, r := range s {
-		if r == '\\' || r == quote {
-			simple = false
-			break
-		}
-	}
-	if simple {
-		return s, nil
-	}
-
-	buf := make([]byte, 0, 3*len(s)/2)
-	for len(s) > 0 {
-		r, n := utf8.DecodeRuneInString(s)
-		if r == utf8.RuneError && n == 1 {
-			return "", errBadUTF8
-		}
-		s = s[n:]
-		if r != '\\' {
-			if r < utf8.RuneSelf {
-				buf = append(buf, byte(r))
-			} else {
-				buf = append(buf, string(r)...)
-			}
-			continue
-		}
-
-		ch, tail, err := unescape(s)
-		if err != nil {
-			return "", err
-		}
-		buf = append(buf, ch...)
-		s = tail
-	}
-	return string(buf), nil
-}
-
-func unescape(s string) (ch string, tail string, err error) {
-	r, n := utf8.DecodeRuneInString(s)
-	if r == utf8.RuneError && n == 1 {
-		return "", "", errBadUTF8
-	}
-	s = s[n:]
-	switch r {
-	case 'a':
-		return "\a", s, nil
-	case 'b':
-		return "\b", s, nil
-	case 'f':
-		return "\f", s, nil
-	case 'n':
-		return "\n", s, nil
-	case 'r':
-		return "\r", s, nil
-	case 't':
-		return "\t", s, nil
-	case 'v':
-		return "\v", s, nil
-	case '?':
-		return "?", s, nil // trigraph workaround
-	case '\'', '"', '\\':
-		return string(r), s, nil
-	case '0', '1', '2', '3', '4', '5', '6', '7':
-		if len(s) < 2 {
-			return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
-		}
-		ss := string(r) + s[:2]
-		s = s[2:]
-		i, err := strconv.ParseUint(ss, 8, 8)
-		if err != nil {
-			return "", "", fmt.Errorf(`\%s contains non-octal digits`, ss)
-		}
-		return string([]byte{byte(i)}), s, nil
-	case 'x', 'X', 'u', 'U':
-		var n int
-		switch r {
-		case 'x', 'X':
-			n = 2
-		case 'u':
-			n = 4
-		case 'U':
-			n = 8
-		}
-		if len(s) < n {
-			return "", "", fmt.Errorf(`\%c requires %d following digits`, r, n)
-		}
-		ss := s[:n]
-		s = s[n:]
-		i, err := strconv.ParseUint(ss, 16, 64)
-		if err != nil {
-			return "", "", fmt.Errorf(`\%c%s contains non-hexadecimal digits`, r, ss)
-		}
-		if r == 'x' || r == 'X' {
-			return string([]byte{byte(i)}), s, nil
-		}
-		if i > utf8.MaxRune {
-			return "", "", fmt.Errorf(`\%c%s is not a valid Unicode code point`, r, ss)
-		}
-		return string(rune(i)), s, nil
-	}
-	return "", "", fmt.Errorf(`unknown escape \%c`, r)
-}
-
-func isIdentOrNumberChar(c byte) bool {
-	switch {
-	case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
-		return true
-	case '0' <= c && c <= '9':
-		return true
-	}
-	switch c {
-	case '-', '+', '.', '_':
-		return true
-	}
-	return false
-}
-
-func isWhitespace(c byte) bool {
-	switch c {
-	case ' ', '\t', '\n', '\r':
-		return true
-	}
-	return false
-}
-
-func isQuote(c byte) bool {
-	switch c {
-	case '"', '\'':
-		return true
-	}
-	return false
-}
--- a/vendor/github.com/golang/protobuf/proto/text_encode.go
+++ b/vendor/github.com/golang/protobuf/proto/text_encode.go
@@ -1,560 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	"bytes"
-	"encoding"
-	"fmt"
-	"io"
-	"math"
-	"sort"
-	"strings"
-
-	"google.golang.org/protobuf/encoding/prototext"
-	"google.golang.org/protobuf/encoding/protowire"
-	"google.golang.org/protobuf/proto"
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/reflect/protoregistry"
-)
-
-const wrapTextMarshalV2 = false
-
-// TextMarshaler is a configurable text format marshaler.
-type TextMarshaler struct {
-	Compact   bool // use compact text format (one line)
-	ExpandAny bool // expand google.protobuf.Any messages of known types
-}
-
-// Marshal writes the proto text format of m to w.
-func (tm *TextMarshaler) Marshal(w io.Writer, m Message) error {
-	b, err := tm.marshal(m)
-	if len(b) > 0 {
-		if _, err := w.Write(b); err != nil {
-			return err
-		}
-	}
-	return err
-}
-
-// Text returns a proto text formatted string of m.
-func (tm *TextMarshaler) Text(m Message) string {
-	b, _ := tm.marshal(m)
-	return string(b)
-}
-
-func (tm *TextMarshaler) marshal(m Message) ([]byte, error) {
-	mr := MessageReflect(m)
-	if mr == nil || !mr.IsValid() {
-		return []byte("<nil>"), nil
-	}
-
-	if wrapTextMarshalV2 {
-		if m, ok := m.(encoding.TextMarshaler); ok {
-			return m.MarshalText()
-		}
-
-		opts := prototext.MarshalOptions{
-			AllowPartial: true,
-			EmitUnknown:  true,
-		}
-		if !tm.Compact {
-			opts.Indent = "  "
-		}
-		if !tm.ExpandAny {
-			opts.Resolver = (*protoregistry.Types)(nil)
-		}
-		return opts.Marshal(mr.Interface())
-	} else {
-		w := &textWriter{
-			compact:   tm.Compact,
-			expandAny: tm.ExpandAny,
-			complete:  true,
-		}
-
-		if m, ok := m.(encoding.TextMarshaler); ok {
-			b, err := m.MarshalText()
-			if err != nil {
-				return nil, err
-			}
-			w.Write(b)
-			return w.buf, nil
-		}
-
-		err := w.writeMessage(mr)
-		return w.buf, err
-	}
-}
-
-var (
-	defaultTextMarshaler = TextMarshaler{}
-	compactTextMarshaler = TextMarshaler{Compact: true}
-)
-
-// MarshalText writes the proto text format of m to w.
-func MarshalText(w io.Writer, m Message) error { return defaultTextMarshaler.Marshal(w, m) }
-
-// MarshalTextString returns a proto text formatted string of m.
-func MarshalTextString(m Message) string { return defaultTextMarshaler.Text(m) }
-
-// CompactText writes the compact proto text format of m to w.
-func CompactText(w io.Writer, m Message) error { return compactTextMarshaler.Marshal(w, m) }
-
-// CompactTextString returns a compact proto text formatted string of m.
-func CompactTextString(m Message) string { return compactTextMarshaler.Text(m) }
-
-var (
-	newline         = []byte("\n")
-	endBraceNewline = []byte("}\n")
-	posInf          = []byte("inf")
-	negInf          = []byte("-inf")
-	nan             = []byte("nan")
-)
-
-// textWriter is an io.Writer that tracks its indentation level.
-type textWriter struct {
-	compact   bool // same as TextMarshaler.Compact
-	expandAny bool // same as TextMarshaler.ExpandAny
-	complete  bool // whether the current position is a complete line
-	indent    int  // indentation level; never negative
-	buf       []byte
-}
-
-func (w *textWriter) Write(p []byte) (n int, _ error) {
-	newlines := bytes.Count(p, newline)
-	if newlines == 0 {
-		if !w.compact && w.complete {
-			w.writeIndent()
-		}
-		w.buf = append(w.buf, p...)
-		w.complete = false
-		return len(p), nil
-	}
-
-	frags := bytes.SplitN(p, newline, newlines+1)
-	if w.compact {
-		for i, frag := range frags {
-			if i > 0 {
-				w.buf = append(w.buf, ' ')
-				n++
-			}
-			w.buf = append(w.buf, frag...)
-			n += len(frag)
-		}
-		return n, nil
-	}
-
-	for i, frag := range frags {
-		if w.complete {
-			w.writeIndent()
-		}
-		w.buf = append(w.buf, frag...)
-		n += len(frag)
-		if i+1 < len(frags) {
-			w.buf = append(w.buf, '\n')
-			n++
-		}
-	}
-	w.complete = len(frags[len(frags)-1]) == 0
-	return n, nil
-}
-
-func (w *textWriter) WriteByte(c byte) error {
-	if w.compact && c == '\n' {
-		c = ' '
-	}
-	if !w.compact && w.complete {
-		w.writeIndent()
-	}
-	w.buf = append(w.buf, c)
-	w.complete = c == '\n'
-	return nil
-}
-
-func (w *textWriter) writeName(fd protoreflect.FieldDescriptor) {
-	if !w.compact && w.complete {
-		w.writeIndent()
-	}
-	w.complete = false
-
-	if fd.Kind() != protoreflect.GroupKind {
-		w.buf = append(w.buf, fd.Name()...)
-		w.WriteByte(':')
-	} else {
-		// Use message type name for group field name.
-		w.buf = append(w.buf, fd.Message().Name()...)
-	}
-
-	if !w.compact {
-		w.WriteByte(' ')
-	}
-}
-
-func requiresQuotes(u string) bool {
-	// When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted.
-	for _, ch := range u {
-		switch {
-		case ch == '.' || ch == '/' || ch == '_':
-			continue
-		case '0' <= ch && ch <= '9':
-			continue
-		case 'A' <= ch && ch <= 'Z':
-			continue
-		case 'a' <= ch && ch <= 'z':
-			continue
-		default:
-			return true
-		}
-	}
-	return false
-}
-
-// writeProto3Any writes an expanded google.protobuf.Any message.
-//
-// It returns (false, nil) if sv value can't be unmarshaled (e.g. because
-// required messages are not linked in).
-//
-// It returns (true, error) when sv was written in expanded format or an error
-// was encountered.
-func (w *textWriter) writeProto3Any(m protoreflect.Message) (bool, error) {
-	md := m.Descriptor()
-	fdURL := md.Fields().ByName("type_url")
-	fdVal := md.Fields().ByName("value")
-
-	url := m.Get(fdURL).String()
-	mt, err := protoregistry.GlobalTypes.FindMessageByURL(url)
-	if err != nil {
-		return false, nil
-	}
-
-	b := m.Get(fdVal).Bytes()
-	m2 := mt.New()
-	if err := proto.Unmarshal(b, m2.Interface()); err != nil {
-		return false, nil
-	}
-	w.Write([]byte("["))
-	if requiresQuotes(url) {
-		w.writeQuotedString(url)
-	} else {
-		w.Write([]byte(url))
-	}
-	if w.compact {
-		w.Write([]byte("]:<"))
-	} else {
-		w.Write([]byte("]: <\n"))
-		w.indent++
-	}
-	if err := w.writeMessage(m2); err != nil {
-		return true, err
-	}
-	if w.compact {
-		w.Write([]byte("> "))
-	} else {
-		w.indent--
-		w.Write([]byte(">\n"))
-	}
-	return true, nil
-}
-
-func (w *textWriter) writeMessage(m protoreflect.Message) error {
-	md := m.Descriptor()
-	if w.expandAny && md.FullName() == "google.protobuf.Any" {
-		if canExpand, err := w.writeProto3Any(m); canExpand {
-			return err
-		}
-	}
-
-	fds := md.Fields()
-	for i := 0; i < fds.Len(); {
-		fd := fds.Get(i)
-		if od := fd.ContainingOneof(); od != nil {
-			fd = m.WhichOneof(od)
-			i += od.Fields().Len()
-		} else {
-			i++
-		}
-		if fd == nil || !m.Has(fd) {
-			continue
-		}
-
-		switch {
-		case fd.IsList():
-			lv := m.Get(fd).List()
-			for j := 0; j < lv.Len(); j++ {
-				w.writeName(fd)
-				v := lv.Get(j)
-				if err := w.writeSingularValue(v, fd); err != nil {
-					return err
-				}
-				w.WriteByte('\n')
-			}
-		case fd.IsMap():
-			kfd := fd.MapKey()
-			vfd := fd.MapValue()
-			mv := m.Get(fd).Map()
-
-			type entry struct{ key, val protoreflect.Value }
-			var entries []entry
-			mv.Range(func(k protoreflect.MapKey, v protoreflect.Value) bool {
-				entries = append(entries, entry{k.Value(), v})
-				return true
-			})
-			sort.Slice(entries, func(i, j int) bool {
-				switch kfd.Kind() {
-				case protoreflect.BoolKind:
-					return !entries[i].key.Bool() && entries[j].key.Bool()
-				case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind, protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
-					return entries[i].key.Int() < entries[j].key.Int()
-				case protoreflect.Uint32Kind, protoreflect.Fixed32Kind, protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
-					return entries[i].key.Uint() < entries[j].key.Uint()
-				case protoreflect.StringKind:
-					return entries[i].key.String() < entries[j].key.String()
-				default:
-					panic("invalid kind")
-				}
-			})
-			for _, entry := range entries {
-				w.writeName(fd)
-				w.WriteByte('<')
-				if !w.compact {
-					w.WriteByte('\n')
-				}
-				w.indent++
-				w.writeName(kfd)
-				if err := w.writeSingularValue(entry.key, kfd); err != nil {
-					return err
-				}
-				w.WriteByte('\n')
-				w.writeName(vfd)
-				if err := w.writeSingularValue(entry.val, vfd); err != nil {
-					return err
-				}
-				w.WriteByte('\n')
-				w.indent--
-				w.WriteByte('>')
-				w.WriteByte('\n')
-			}
-		default:
-			w.writeName(fd)
-			if err := w.writeSingularValue(m.Get(fd), fd); err != nil {
-				return err
-			}
-			w.WriteByte('\n')
-		}
-	}
-
-	if b := m.GetUnknown(); len(b) > 0 {
-		w.writeUnknownFields(b)
-	}
-	return w.writeExtensions(m)
-}
-
-func (w *textWriter) writeSingularValue(v protoreflect.Value, fd protoreflect.FieldDescriptor) error {
-	switch fd.Kind() {
-	case protoreflect.FloatKind, protoreflect.DoubleKind:
-		switch vf := v.Float(); {
-		case math.IsInf(vf, +1):
-			w.Write(posInf)
-		case math.IsInf(vf, -1):
-			w.Write(negInf)
-		case math.IsNaN(vf):
-			w.Write(nan)
-		default:
-			fmt.Fprint(w, v.Interface())
-		}
-	case protoreflect.StringKind:
-		// NOTE: This does not validate UTF-8 for historical reasons.
-		w.writeQuotedString(string(v.String()))
-	case protoreflect.BytesKind:
-		w.writeQuotedString(string(v.Bytes()))
-	case protoreflect.MessageKind, protoreflect.GroupKind:
-		var bra, ket byte = '<', '>'
-		if fd.Kind() == protoreflect.GroupKind {
-			bra, ket = '{', '}'
-		}
-		w.WriteByte(bra)
-		if !w.compact {
-			w.WriteByte('\n')
-		}
-		w.indent++
-		m := v.Message()
-		if m2, ok := m.Interface().(encoding.TextMarshaler); ok {
-			b, err := m2.MarshalText()
-			if err != nil {
-				return err
-			}
-			w.Write(b)
-		} else {
-			w.writeMessage(m)
-		}
-		w.indent--
-		w.WriteByte(ket)
-	case protoreflect.EnumKind:
-		if ev := fd.Enum().Values().ByNumber(v.Enum()); ev != nil {
-			fmt.Fprint(w, ev.Name())
-		} else {
-			fmt.Fprint(w, v.Enum())
-		}
-	default:
-		fmt.Fprint(w, v.Interface())
-	}
-	return nil
-}
-
-// writeQuotedString writes a quoted string in the protocol buffer text format.
-func (w *textWriter) writeQuotedString(s string) {
-	w.WriteByte('"')
-	for i := 0; i < len(s); i++ {
-		switch c := s[i]; c {
-		case '\n':
-			w.buf = append(w.buf, `\n`...)
-		case '\r':
-			w.buf = append(w.buf, `\r`...)
-		case '\t':
-			w.buf = append(w.buf, `\t`...)
-		case '"':
-			w.buf = append(w.buf, `\"`...)
-		case '\\':
-			w.buf = append(w.buf, `\\`...)
-		default:
-			if isPrint := c >= 0x20 && c < 0x7f; isPrint {
-				w.buf = append(w.buf, c)
-			} else {
-				w.buf = append(w.buf, fmt.Sprintf(`\%03o`, c)...)
-			}
-		}
-	}
-	w.WriteByte('"')
-}
-
-func (w *textWriter) writeUnknownFields(b []byte) {
-	if !w.compact {
-		fmt.Fprintf(w, "/* %d unknown bytes */\n", len(b))
-	}
-
-	for len(b) > 0 {
-		num, wtyp, n := protowire.ConsumeTag(b)
-		if n < 0 {
-			return
-		}
-		b = b[n:]
-
-		if wtyp == protowire.EndGroupType {
-			w.indent--
-			w.Write(endBraceNewline)
-			continue
-		}
-		fmt.Fprint(w, num)
-		if wtyp != protowire.StartGroupType {
-			w.WriteByte(':')
-		}
-		if !w.compact || wtyp == protowire.StartGroupType {
-			w.WriteByte(' ')
-		}
-		switch wtyp {
-		case protowire.VarintType:
-			v, n := protowire.ConsumeVarint(b)
-			if n < 0 {
-				return
-			}
-			b = b[n:]
-			fmt.Fprint(w, v)
-		case protowire.Fixed32Type:
-			v, n := protowire.ConsumeFixed32(b)
-			if n < 0 {
-				return
-			}
-			b = b[n:]
-			fmt.Fprint(w, v)
-		case protowire.Fixed64Type:
-			v, n := protowire.ConsumeFixed64(b)
-			if n < 0 {
-				return
-			}
-			b = b[n:]
-			fmt.Fprint(w, v)
-		case protowire.BytesType:
-			v, n := protowire.ConsumeBytes(b)
-			if n < 0 {
-				return
-			}
-			b = b[n:]
-			fmt.Fprintf(w, "%q", v)
-		case protowire.StartGroupType:
-			w.WriteByte('{')
-			w.indent++
-		default:
-			fmt.Fprintf(w, "/* unknown wire type %d */", wtyp)
-		}
-		w.WriteByte('\n')
-	}
-}
-
-// writeExtensions writes all the extensions in m.
-func (w *textWriter) writeExtensions(m protoreflect.Message) error {
-	md := m.Descriptor()
-	if md.ExtensionRanges().Len() == 0 {
-		return nil
-	}
-
-	type ext struct {
-		desc protoreflect.FieldDescriptor
-		val  protoreflect.Value
-	}
-	var exts []ext
-	m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
-		if fd.IsExtension() {
-			exts = append(exts, ext{fd, v})
-		}
-		return true
-	})
-	sort.Slice(exts, func(i, j int) bool {
-		return exts[i].desc.Number() < exts[j].desc.Number()
-	})
-
-	for _, ext := range exts {
-		// For message set, use the name of the message as the extension name.
-		name := string(ext.desc.FullName())
-		if isMessageSet(ext.desc.ContainingMessage()) {
-			name = strings.TrimSuffix(name, ".message_set_extension")
-		}
-
-		if !ext.desc.IsList() {
-			if err := w.writeSingularExtension(name, ext.val, ext.desc); err != nil {
-				return err
-			}
-		} else {
-			lv := ext.val.List()
-			for i := 0; i < lv.Len(); i++ {
-				if err := w.writeSingularExtension(name, lv.Get(i), ext.desc); err != nil {
-					return err
-				}
-			}
-		}
-	}
-	return nil
-}
-
-func (w *textWriter) writeSingularExtension(name string, v protoreflect.Value, fd protoreflect.FieldDescriptor) error {
-	fmt.Fprintf(w, "[%s]:", name)
-	if !w.compact {
-		w.WriteByte(' ')
-	}
-	if err := w.writeSingularValue(v, fd); err != nil {
-		return err
-	}
-	w.WriteByte('\n')
-	return nil
-}
-
-func (w *textWriter) writeIndent() {
-	if !w.complete {
-		return
-	}
-	for i := 0; i < w.indent*2; i++ {
-		w.buf = append(w.buf, ' ')
-	}
-	w.complete = false
-}
--- a/vendor/github.com/golang/protobuf/proto/wire.go
+++ b/vendor/github.com/golang/protobuf/proto/wire.go
@@ -1,78 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-import (
-	protoV2 "google.golang.org/protobuf/proto"
-	"google.golang.org/protobuf/runtime/protoiface"
-)
-
-// Size returns the size in bytes of the wire-format encoding of m.
-func Size(m Message) int {
-	if m == nil {
-		return 0
-	}
-	mi := MessageV2(m)
-	return protoV2.Size(mi)
-}
-
-// Marshal returns the wire-format encoding of m.
-func Marshal(m Message) ([]byte, error) {
-	b, err := marshalAppend(nil, m, false)
-	if b == nil {
-		b = zeroBytes
-	}
-	return b, err
-}
-
-var zeroBytes = make([]byte, 0, 0)
-
-func marshalAppend(buf []byte, m Message, deterministic bool) ([]byte, error) {
-	if m == nil {
-		return nil, ErrNil
-	}
-	mi := MessageV2(m)
-	nbuf, err := protoV2.MarshalOptions{
-		Deterministic: deterministic,
-		AllowPartial:  true,
-	}.MarshalAppend(buf, mi)
-	if err != nil {
-		return buf, err
-	}
-	if len(buf) == len(nbuf) {
-		if !mi.ProtoReflect().IsValid() {
-			return buf, ErrNil
-		}
-	}
-	return nbuf, checkRequiredNotSet(mi)
-}
-
-// Unmarshal parses a wire-format message in b and places the decoded results in m.
-//
-// Unmarshal resets m before starting to unmarshal, so any existing data in m is always
-// removed. Use UnmarshalMerge to preserve and append to existing data.
-func Unmarshal(b []byte, m Message) error {
-	m.Reset()
-	return UnmarshalMerge(b, m)
-}
-
-// UnmarshalMerge parses a wire-format message in b and places the decoded results in m.
-func UnmarshalMerge(b []byte, m Message) error {
-	mi := MessageV2(m)
-	out, err := protoV2.UnmarshalOptions{
-		AllowPartial: true,
-		Merge:        true,
-	}.UnmarshalState(protoiface.UnmarshalInput{
-		Buf:     b,
-		Message: mi.ProtoReflect(),
-	})
-	if err != nil {
-		return err
-	}
-	if out.Flags&protoiface.UnmarshalInitialized > 0 {
-		return nil
-	}
-	return checkRequiredNotSet(mi)
-}
--- a/vendor/github.com/golang/protobuf/proto/wrappers.go
+++ b/vendor/github.com/golang/protobuf/proto/wrappers.go
@@ -1,34 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package proto
-
-// Bool stores v in a new bool value and returns a pointer to it.
-func Bool(v bool) *bool { return &v }
-
-// Int stores v in a new int32 value and returns a pointer to it.
-//
-// Deprecated: Use Int32 instead.
-func Int(v int) *int32 { return Int32(int32(v)) }
-
-// Int32 stores v in a new int32 value and returns a pointer to it.
-func Int32(v int32) *int32 { return &v }
-
-// Int64 stores v in a new int64 value and returns a pointer to it.
-func Int64(v int64) *int64 { return &v }
-
-// Uint32 stores v in a new uint32 value and returns a pointer to it.
-func Uint32(v uint32) *uint32 { return &v }
-
-// Uint64 stores v in a new uint64 value and returns a pointer to it.
-func Uint64(v uint64) *uint64 { return &v }
-
-// Float32 stores v in a new float32 value and returns a pointer to it.
-func Float32(v float32) *float32 { return &v }
-
-// Float64 stores v in a new float64 value and returns a pointer to it.
-func Float64(v float64) *float64 { return &v }
-
-// String stores v in a new string value and returns a pointer to it.
-func String(v string) *string { return &v }
--- a/vendor/github.com/golang/protobuf/ptypes/any.go
+++ b/vendor/github.com/golang/protobuf/ptypes/any.go
@@ -1,165 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ptypes
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/golang/protobuf/proto"
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/reflect/protoregistry"
-
-	anypb "github.com/golang/protobuf/ptypes/any"
-)
-
-const urlPrefix = "type.googleapis.com/"
-
-// AnyMessageName returns the message name contained in an anypb.Any message.
-// Most type assertions should use the Is function instead.
-func AnyMessageName(any *anypb.Any) (string, error) {
-	name, err := anyMessageName(any)
-	return string(name), err
-}
-func anyMessageName(any *anypb.Any) (protoreflect.FullName, error) {
-	if any == nil {
-		return "", fmt.Errorf("message is nil")
-	}
-	name := protoreflect.FullName(any.TypeUrl)
-	if i := strings.LastIndex(any.TypeUrl, "/"); i >= 0 {
-		name = name[i+len("/"):]
-	}
-	if !name.IsValid() {
-		return "", fmt.Errorf("message type url %q is invalid", any.TypeUrl)
-	}
-	return name, nil
-}
-
-// MarshalAny marshals the given message m into an anypb.Any message.
-func MarshalAny(m proto.Message) (*anypb.Any, error) {
-	switch dm := m.(type) {
-	case DynamicAny:
-		m = dm.Message
-	case *DynamicAny:
-		if dm == nil {
-			return nil, proto.ErrNil
-		}
-		m = dm.Message
-	}
-	b, err := proto.Marshal(m)
-	if err != nil {
-		return nil, err
-	}
-	return &anypb.Any{TypeUrl: urlPrefix + proto.MessageName(m), Value: b}, nil
-}
-
-// Empty returns a new message of the type specified in an anypb.Any message.
-// It returns protoregistry.NotFound if the corresponding message type could not
-// be resolved in the global registry.
-func Empty(any *anypb.Any) (proto.Message, error) {
-	name, err := anyMessageName(any)
-	if err != nil {
-		return nil, err
-	}
-	mt, err := protoregistry.GlobalTypes.FindMessageByName(name)
-	if err != nil {
-		return nil, err
-	}
-	return proto.MessageV1(mt.New().Interface()), nil
-}
-
-// UnmarshalAny unmarshals the encoded value contained in the anypb.Any message
-// into the provided message m. It returns an error if the target message
-// does not match the type in the Any message or if an unmarshal error occurs.
-//
-// The target message m may be a *DynamicAny message. If the underlying message
-// type could not be resolved, then this returns protoregistry.NotFound.
-func UnmarshalAny(any *anypb.Any, m proto.Message) error {
-	if dm, ok := m.(*DynamicAny); ok {
-		if dm.Message == nil {
-			var err error
-			dm.Message, err = Empty(any)
-			if err != nil {
-				return err
-			}
-		}
-		m = dm.Message
-	}
-
-	anyName, err := AnyMessageName(any)
-	if err != nil {
-		return err
-	}
-	msgName := proto.MessageName(m)
-	if anyName != msgName {
-		return fmt.Errorf("mismatched message type: got %q want %q", anyName, msgName)
-	}
-	return proto.Unmarshal(any.Value, m)
-}
-
-// Is reports whether the Any message contains a message of the specified type.
-func Is(any *anypb.Any, m proto.Message) bool {
-	if any == nil || m == nil {
-		return false
-	}
-	name := proto.MessageName(m)
-	if !strings.HasSuffix(any.TypeUrl, name) {
-		return false
-	}
-	return len(any.TypeUrl) == len(name) || any.TypeUrl[len(any.TypeUrl)-len(name)-1] == '/'
-}
-
-// DynamicAny is a value that can be passed to UnmarshalAny to automatically
-// allocate a proto.Message for the type specified in an anypb.Any message.
-// The allocated message is stored in the embedded proto.Message.
-//
-// Example:
-//   var x ptypes.DynamicAny
-//   if err := ptypes.UnmarshalAny(a, &x); err != nil { ... }
-//   fmt.Printf("unmarshaled message: %v", x.Message)
-type DynamicAny struct{ proto.Message }
-
-func (m DynamicAny) String() string {
-	if m.Message == nil {
-		return "<nil>"
-	}
-	return m.Message.String()
-}
-func (m DynamicAny) Reset() {
-	if m.Message == nil {
-		return
-	}
-	m.Message.Reset()
-}
-func (m DynamicAny) ProtoMessage() {
-	return
-}
-func (m DynamicAny) ProtoReflect() protoreflect.Message {
-	if m.Message == nil {
-		return nil
-	}
-	return dynamicAny{proto.MessageReflect(m.Message)}
-}
-
-type dynamicAny struct{ protoreflect.Message }
-
-func (m dynamicAny) Type() protoreflect.MessageType {
-	return dynamicAnyType{m.Message.Type()}
-}
-func (m dynamicAny) New() protoreflect.Message {
-	return dynamicAnyType{m.Message.Type()}.New()
-}
-func (m dynamicAny) Interface() protoreflect.ProtoMessage {
-	return DynamicAny{proto.MessageV1(m.Message.Interface())}
-}
-
-type dynamicAnyType struct{ protoreflect.MessageType }
-
-func (t dynamicAnyType) New() protoreflect.Message {
-	return dynamicAny{t.MessageType.New()}
-}
-func (t dynamicAnyType) Zero() protoreflect.Message {
-	return dynamicAny{t.MessageType.Zero()}
-}
--- a/vendor/github.com/golang/protobuf/ptypes/any/any.pb.go
+++ b/vendor/github.com/golang/protobuf/ptypes/any/any.pb.go
@@ -1,62 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: github.com/golang/protobuf/ptypes/any/any.proto
-
-package any
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	anypb "google.golang.org/protobuf/types/known/anypb"
-	reflect "reflect"
-)
-
-// Symbols defined in public import of google/protobuf/any.proto.
-
-type Any = anypb.Any
-
-var File_github_com_golang_protobuf_ptypes_any_any_proto protoreflect.FileDescriptor
-
-var file_github_com_golang_protobuf_ptypes_any_any_proto_rawDesc = []byte{
-	0x0a, 0x2f, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
-	0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
-	0x70, 0x65, 0x73, 0x2f, 0x61, 0x6e, 0x79, 0x2f, 0x61, 0x6e, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74,
-	0x6f, 0x1a, 0x19, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
-	0x75, 0x66, 0x2f, 0x61, 0x6e, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x2b, 0x5a, 0x29,
-	0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c, 0x61, 0x6e,
-	0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79, 0x70, 0x65,
-	0x73, 0x2f, 0x61, 0x6e, 0x79, 0x3b, 0x61, 0x6e, 0x79, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x33,
-}
-
-var file_github_com_golang_protobuf_ptypes_any_any_proto_goTypes = []interface{}{}
-var file_github_com_golang_protobuf_ptypes_any_any_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_github_com_golang_protobuf_ptypes_any_any_proto_init() }
-func file_github_com_golang_protobuf_ptypes_any_any_proto_init() {
-	if File_github_com_golang_protobuf_ptypes_any_any_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_github_com_golang_protobuf_ptypes_any_any_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   0,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_github_com_golang_protobuf_ptypes_any_any_proto_goTypes,
-		DependencyIndexes: file_github_com_golang_protobuf_ptypes_any_any_proto_depIdxs,
-	}.Build()
-	File_github_com_golang_protobuf_ptypes_any_any_proto = out.File
-	file_github_com_golang_protobuf_ptypes_any_any_proto_rawDesc = nil
-	file_github_com_golang_protobuf_ptypes_any_any_proto_goTypes = nil
-	file_github_com_golang_protobuf_ptypes_any_any_proto_depIdxs = nil
-}
--- a/vendor/github.com/golang/protobuf/ptypes/doc.go
+++ b/vendor/github.com/golang/protobuf/ptypes/doc.go
@@ -1,6 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package ptypes provides functionality for interacting with well-known types.
-package ptypes
--- a/vendor/github.com/golang/protobuf/ptypes/duration.go
+++ b/vendor/github.com/golang/protobuf/ptypes/duration.go
@@ -1,72 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ptypes
-
-import (
-	"errors"
-	"fmt"
-	"time"
-
-	durationpb "github.com/golang/protobuf/ptypes/duration"
-)
-
-// Range of google.protobuf.Duration as specified in duration.proto.
-// This is about 10,000 years in seconds.
-const (
-	maxSeconds = int64(10000 * 365.25 * 24 * 60 * 60)
-	minSeconds = -maxSeconds
-)
-
-// Duration converts a durationpb.Duration to a time.Duration.
-// Duration returns an error if dur is invalid or overflows a time.Duration.
-func Duration(dur *durationpb.Duration) (time.Duration, error) {
-	if err := validateDuration(dur); err != nil {
-		return 0, err
-	}
-	d := time.Duration(dur.Seconds) * time.Second
-	if int64(d/time.Second) != dur.Seconds {
-		return 0, fmt.Errorf("duration: %v is out of range for time.Duration", dur)
-	}
-	if dur.Nanos != 0 {
-		d += time.Duration(dur.Nanos) * time.Nanosecond
-		if (d < 0) != (dur.Nanos < 0) {
-			return 0, fmt.Errorf("duration: %v is out of range for time.Duration", dur)
-		}
-	}
-	return d, nil
-}
-
-// DurationProto converts a time.Duration to a durationpb.Duration.
-func DurationProto(d time.Duration) *durationpb.Duration {
-	nanos := d.Nanoseconds()
-	secs := nanos / 1e9
-	nanos -= secs * 1e9
-	return &durationpb.Duration{
-		Seconds: int64(secs),
-		Nanos:   int32(nanos),
-	}
-}
-
-// validateDuration determines whether the durationpb.Duration is valid
-// according to the definition in google/protobuf/duration.proto.
-// A valid durpb.Duration may still be too large to fit into a time.Duration
-// Note that the range of durationpb.Duration is about 10,000 years,
-// while the range of time.Duration is about 290 years.
-func validateDuration(dur *durationpb.Duration) error {
-	if dur == nil {
-		return errors.New("duration: nil Duration")
-	}
-	if dur.Seconds < minSeconds || dur.Seconds > maxSeconds {
-		return fmt.Errorf("duration: %v: seconds out of range", dur)
-	}
-	if dur.Nanos <= -1e9 || dur.Nanos >= 1e9 {
-		return fmt.Errorf("duration: %v: nanos out of range", dur)
-	}
-	// Seconds and Nanos must have the same sign, unless d.Nanos is zero.
-	if (dur.Seconds < 0 && dur.Nanos > 0) || (dur.Seconds > 0 && dur.Nanos < 0) {
-		return fmt.Errorf("duration: %v: seconds and nanos have different signs", dur)
-	}
-	return nil
-}
--- a/vendor/github.com/golang/protobuf/ptypes/duration/duration.pb.go
+++ b/vendor/github.com/golang/protobuf/ptypes/duration/duration.pb.go
@@ -1,63 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: github.com/golang/protobuf/ptypes/duration/duration.proto
-
-package duration
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	durationpb "google.golang.org/protobuf/types/known/durationpb"
-	reflect "reflect"
-)
-
-// Symbols defined in public import of google/protobuf/duration.proto.
-
-type Duration = durationpb.Duration
-
-var File_github_com_golang_protobuf_ptypes_duration_duration_proto protoreflect.FileDescriptor
-
-var file_github_com_golang_protobuf_ptypes_duration_duration_proto_rawDesc = []byte{
-	0x0a, 0x39, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
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-	0x6f, 0x6e, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var file_github_com_golang_protobuf_ptypes_duration_duration_proto_goTypes = []interface{}{}
-var file_github_com_golang_protobuf_ptypes_duration_duration_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_github_com_golang_protobuf_ptypes_duration_duration_proto_init() }
-func file_github_com_golang_protobuf_ptypes_duration_duration_proto_init() {
-	if File_github_com_golang_protobuf_ptypes_duration_duration_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_github_com_golang_protobuf_ptypes_duration_duration_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   0,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_github_com_golang_protobuf_ptypes_duration_duration_proto_goTypes,
-		DependencyIndexes: file_github_com_golang_protobuf_ptypes_duration_duration_proto_depIdxs,
-	}.Build()
-	File_github_com_golang_protobuf_ptypes_duration_duration_proto = out.File
-	file_github_com_golang_protobuf_ptypes_duration_duration_proto_rawDesc = nil
-	file_github_com_golang_protobuf_ptypes_duration_duration_proto_goTypes = nil
-	file_github_com_golang_protobuf_ptypes_duration_duration_proto_depIdxs = nil
-}
--- a/vendor/github.com/golang/protobuf/ptypes/timestamp.go
+++ b/vendor/github.com/golang/protobuf/ptypes/timestamp.go
@@ -1,103 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ptypes
-
-import (
-	"errors"
-	"fmt"
-	"time"
-
-	timestamppb "github.com/golang/protobuf/ptypes/timestamp"
-)
-
-// Range of google.protobuf.Duration as specified in timestamp.proto.
-const (
-	// Seconds field of the earliest valid Timestamp.
-	// This is time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
-	minValidSeconds = -62135596800
-	// Seconds field just after the latest valid Timestamp.
-	// This is time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
-	maxValidSeconds = 253402300800
-)
-
-// Timestamp converts a timestamppb.Timestamp to a time.Time.
-// It returns an error if the argument is invalid.
-//
-// Unlike most Go functions, if Timestamp returns an error, the first return
-// value is not the zero time.Time. Instead, it is the value obtained from the
-// time.Unix function when passed the contents of the Timestamp, in the UTC
-// locale. This may or may not be a meaningful time; many invalid Timestamps
-// do map to valid time.Times.
-//
-// A nil Timestamp returns an error. The first return value in that case is
-// undefined.
-func Timestamp(ts *timestamppb.Timestamp) (time.Time, error) {
-	// Don't return the zero value on error, because corresponds to a valid
-	// timestamp. Instead return whatever time.Unix gives us.
-	var t time.Time
-	if ts == nil {
-		t = time.Unix(0, 0).UTC() // treat nil like the empty Timestamp
-	} else {
-		t = time.Unix(ts.Seconds, int64(ts.Nanos)).UTC()
-	}
-	return t, validateTimestamp(ts)
-}
-
-// TimestampNow returns a google.protobuf.Timestamp for the current time.
-func TimestampNow() *timestamppb.Timestamp {
-	ts, err := TimestampProto(time.Now())
-	if err != nil {
-		panic("ptypes: time.Now() out of Timestamp range")
-	}
-	return ts
-}
-
-// TimestampProto converts the time.Time to a google.protobuf.Timestamp proto.
-// It returns an error if the resulting Timestamp is invalid.
-func TimestampProto(t time.Time) (*timestamppb.Timestamp, error) {
-	ts := &timestamppb.Timestamp{
-		Seconds: t.Unix(),
-		Nanos:   int32(t.Nanosecond()),
-	}
-	if err := validateTimestamp(ts); err != nil {
-		return nil, err
-	}
-	return ts, nil
-}
-
-// TimestampString returns the RFC 3339 string for valid Timestamps.
-// For invalid Timestamps, it returns an error message in parentheses.
-func TimestampString(ts *timestamppb.Timestamp) string {
-	t, err := Timestamp(ts)
-	if err != nil {
-		return fmt.Sprintf("(%v)", err)
-	}
-	return t.Format(time.RFC3339Nano)
-}
-
-// validateTimestamp determines whether a Timestamp is valid.
-// A valid timestamp represents a time in the range [0001-01-01, 10000-01-01)
-// and has a Nanos field in the range [0, 1e9).
-//
-// If the Timestamp is valid, validateTimestamp returns nil.
-// Otherwise, it returns an error that describes the problem.
-//
-// Every valid Timestamp can be represented by a time.Time,
-// but the converse is not true.
-func validateTimestamp(ts *timestamppb.Timestamp) error {
-	if ts == nil {
-		return errors.New("timestamp: nil Timestamp")
-	}
-	if ts.Seconds < minValidSeconds {
-		return fmt.Errorf("timestamp: %v before 0001-01-01", ts)
-	}
-	if ts.Seconds >= maxValidSeconds {
-		return fmt.Errorf("timestamp: %v after 10000-01-01", ts)
-	}
-	if ts.Nanos < 0 || ts.Nanos >= 1e9 {
-		return fmt.Errorf("timestamp: %v: nanos not in range [0, 1e9)", ts)
-	}
-	return nil
-}
--- a/vendor/github.com/golang/protobuf/ptypes/timestamp/timestamp.pb.go
+++ b/vendor/github.com/golang/protobuf/ptypes/timestamp/timestamp.pb.go
@@ -1,64 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: github.com/golang/protobuf/ptypes/timestamp/timestamp.proto
-
-package timestamp
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
-	reflect "reflect"
-)
-
-// Symbols defined in public import of google/protobuf/timestamp.proto.
-
-type Timestamp = timestamppb.Timestamp
-
-var File_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto protoreflect.FileDescriptor
-
-var file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_rawDesc = []byte{
-	0x0a, 0x3b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
-	0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
-	0x70, 0x65, 0x73, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2f, 0x74, 0x69,
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-	0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x74,
-	0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x42, 0x37,
-	0x5a, 0x35, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c,
-	0x61, 0x6e, 0x67, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x74, 0x79,
-	0x70, 0x65, 0x73, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x3b, 0x74, 0x69,
-	0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x50, 0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x33,
-}
-
-var file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_goTypes = []interface{}{}
-var file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_init() }
-func file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_init() {
-	if File_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto != nil {
-		return
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   0,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_goTypes,
-		DependencyIndexes: file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_depIdxs,
-	}.Build()
-	File_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto = out.File
-	file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_rawDesc = nil
-	file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_goTypes = nil
-	file_github_com_golang_protobuf_ptypes_timestamp_timestamp_proto_depIdxs = nil
-}
--- a/vendor/github.com/jpillora/backoff/LICENSE
+++ b/vendor/github.com/jpillora/backoff/LICENSE
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2017 Jaime Pillora
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
--- a/vendor/github.com/jpillora/backoff/README.md
+++ b/vendor/github.com/jpillora/backoff/README.md
@@ -1,119 +0,0 @@
-# Backoff
-
-A simple exponential backoff counter in Go (Golang)
-
-[![GoDoc](https://godoc.org/github.com/jpillora/backoff?status.svg)](https://godoc.org/github.com/jpillora/backoff) [![Circle CI](https://circleci.com/gh/jpillora/backoff.svg?style=shield)](https://circleci.com/gh/jpillora/backoff)
-
-### Install
-
-```
-$ go get -v github.com/jpillora/backoff
-```
-
-### Usage
-
-Backoff is a `time.Duration` counter. It starts at `Min`. After every call to `Duration()` it is  multiplied by `Factor`. It is capped at `Max`. It returns to `Min` on every call to `Reset()`. `Jitter` adds randomness ([see below](#example-using-jitter)). Used in conjunction with the `time` package.
-
---
-
-#### Simple example
-
-``` go
-
-b := &backoff.Backoff{
-	//These are the defaults
-	Min:    100 * time.Millisecond,
-	Max:    10 * time.Second,
-	Factor: 2,
-	Jitter: false,
-}
-
-fmt.Printf("%s\n", b.Duration())
-fmt.Printf("%s\n", b.Duration())
-fmt.Printf("%s\n", b.Duration())
-
-fmt.Printf("Reset!\n")
-b.Reset()
-
-fmt.Printf("%s\n", b.Duration())
-```
-
-```
-100ms
-200ms
-400ms
-Reset!
-100ms
-```
-
---
-
-#### Example using `net` package
-
-``` go
-b := &backoff.Backoff{
-    Max:    5 * time.Minute,
-}
-
-for {
-	conn, err := net.Dial("tcp", "example.com:5309")
-	if err != nil {
-		d := b.Duration()
-		fmt.Printf("%s, reconnecting in %s", err, d)
-		time.Sleep(d)
-		continue
-	}
-	//connected
-	b.Reset()
-	conn.Write([]byte("hello world!"))
-	// ... Read ... Write ... etc
-	conn.Close()
-	//disconnected
-}
-
-```
-
---
-
-#### Example using `Jitter`
-
-Enabling `Jitter` adds some randomization to the backoff durations. [See Amazon's writeup of performance gains using jitter](http://www.awsarchitectureblog.com/2015/03/backoff.html). Seeding is not necessary but doing so gives repeatable results.
-
-```go
-import "math/rand"
-
-b := &backoff.Backoff{
-	Jitter: true,
-}
-
-rand.Seed(42)
-
-fmt.Printf("%s\n", b.Duration())
-fmt.Printf("%s\n", b.Duration())
-fmt.Printf("%s\n", b.Duration())
-
-fmt.Printf("Reset!\n")
-b.Reset()
-
-fmt.Printf("%s\n", b.Duration())
-fmt.Printf("%s\n", b.Duration())
-fmt.Printf("%s\n", b.Duration())
-```
-
-```
-100ms
-106.600049ms
-281.228155ms
-Reset!
-100ms
-104.381845ms
-214.957989ms
-```
-
-#### Documentation
-
-https://godoc.org/github.com/jpillora/backoff
-
-#### Credits
-
-Forked from [some JavaScript](https://github.com/segmentio/backo) written by [@tj](https://github.com/tj)
--- a/vendor/github.com/jpillora/backoff/backoff.go
+++ b/vendor/github.com/jpillora/backoff/backoff.go
@@ -1,100 +0,0 @@
-// Package backoff provides an exponential-backoff implementation.
-package backoff
-
-import (
-	"math"
-	"math/rand"
-	"sync/atomic"
-	"time"
-)
-
-// Backoff is a time.Duration counter, starting at Min. After every call to
-// the Duration method the current timing is multiplied by Factor, but it
-// never exceeds Max.
-//
-// Backoff is not generally concurrent-safe, but the ForAttempt method can
-// be used concurrently.
-type Backoff struct {
-	attempt uint64
-	// Factor is the multiplying factor for each increment step
-	Factor float64
-	// Jitter eases contention by randomizing backoff steps
-	Jitter bool
-	// Min and Max are the minimum and maximum values of the counter
-	Min, Max time.Duration
-}
-
-// Duration returns the duration for the current attempt before incrementing
-// the attempt counter. See ForAttempt.
-func (b *Backoff) Duration() time.Duration {
-	d := b.ForAttempt(float64(atomic.AddUint64(&b.attempt, 1) - 1))
-	return d
-}
-
-const maxInt64 = float64(math.MaxInt64 - 512)
-
-// ForAttempt returns the duration for a specific attempt. This is useful if
-// you have a large number of independent Backoffs, but don't want use
-// unnecessary memory storing the Backoff parameters per Backoff. The first
-// attempt should be 0.
-//
-// ForAttempt is concurrent-safe.
-func (b *Backoff) ForAttempt(attempt float64) time.Duration {
-	// Zero-values are nonsensical, so we use
-	// them to apply defaults
-	min := b.Min
-	if min <= 0 {
-		min = 100 * time.Millisecond
-	}
-	max := b.Max
-	if max <= 0 {
-		max = 10 * time.Second
-	}
-	if min >= max {
-		// short-circuit
-		return max
-	}
-	factor := b.Factor
-	if factor <= 0 {
-		factor = 2
-	}
-	//calculate this duration
-	minf := float64(min)
-	durf := minf * math.Pow(factor, attempt)
-	if b.Jitter {
-		durf = rand.Float64()*(durf-minf) + minf
-	}
-	//ensure float64 wont overflow int64
-	if durf > maxInt64 {
-		return max
-	}
-	dur := time.Duration(durf)
-	//keep within bounds
-	if dur < min {
-		return min
-	}
-	if dur > max {
-		return max
-	}
-	return dur
-}
-
-// Reset restarts the current attempt counter at zero.
-func (b *Backoff) Reset() {
-	atomic.StoreUint64(&b.attempt, 0)
-}
-
-// Attempt returns the current attempt counter value.
-func (b *Backoff) Attempt() float64 {
-	return float64(atomic.LoadUint64(&b.attempt))
-}
-
-// Copy returns a backoff with equals constraints as the original
-func (b *Backoff) Copy() *Backoff {
-	return &Backoff{
-		Factor: b.Factor,
-		Jitter: b.Jitter,
-		Min:    b.Min,
-		Max:    b.Max,
-	}
-}
--- a/vendor/github.com/jpillora/backoff/go.mod
+++ b/vendor/github.com/jpillora/backoff/go.mod
@@ -1,3 +0,0 @@
-module github.com/jpillora/backoff
-
-go 1.13
--- a/vendor/github.com/matttproud/golang_protobuf_extensions/LICENSE
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/LICENSE
@@ -1,201 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
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--- a/vendor/github.com/matttproud/golang_protobuf_extensions/NOTICE
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/NOTICE
@@ -1 +0,0 @@
-Copyright 2012 Matt T. Proud (matt.proud@gmail.com)
--- a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore
@@ -1 +0,0 @@
-cover.dat
--- a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile
@@ -1,7 +0,0 @@
-all:
-
-cover:
-	go test -cover -v -coverprofile=cover.dat ./...
-	go tool cover -func cover.dat
-
-.PHONY: cover
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Rob Best	dc001f0c32	feat: add http_file prober	2024-01-05 16:41:43 +00:00
Rob Best	3a594bc445	Bump modules and Go version (#148 ) * Bump modules and Go version * Bump go version in github actions	2024-01-05 16:41:58 +00:00
dependabot[bot]	4526fea4ad	Bump golang.org/x/text from 0.3.7 to 0.3.8 (#126 ) Bumps [golang.org/x/text](https://github.com/golang/text) from 0.3.7 to 0.3.8. - [Release notes](https://github.com/golang/text/releases) - [Commits](https://github.com/golang/text/compare/v0.3.7...v0.3.8) --- updated-dependencies: - dependency-name: golang.org/x/text dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2023-03-13 00:05:29 +00:00
dependabot[bot]	e8e2ba084c	Bump github.com/prometheus/client_model from 0.2.0 to 0.3.0 (#117 ) Bumps [github.com/prometheus/client_model](https://github.com/prometheus/client_model) from 0.2.0 to 0.3.0. - [Release notes](https://github.com/prometheus/client_model/releases) - [Commits](https://github.com/prometheus/client_model/compare/v0.2.0...v0.3.0) --- updated-dependencies: - dependency-name: github.com/prometheus/client_model dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2023-03-13 00:04:51 +00:00
dependabot[bot]	9d2fefefef	Bump github.com/prometheus/client_golang from 1.12.2 to 1.13.0 (#110 ) Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.12.2 to 1.13.0. - [Release notes](https://github.com/prometheus/client_golang/releases) - [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md) - [Commits](https://github.com/prometheus/client_golang/compare/v1.12.2...v1.13.0) --- updated-dependencies: - dependency-name: github.com/prometheus/client_golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-09-29 13:47:22 +01:00
Rob Best	8b30e0983c	Bump dependencies (#108 ) * Bump dependencies * Go 1.18 * go mod tidy	2022-07-15 11:32:47 +01:00
dependabot[bot]	0c3452869d	Bump github.com/prometheus/common from 0.35.0 to 0.36.0 (#106 ) Bumps [github.com/prometheus/common](https://github.com/prometheus/common) from 0.35.0 to 0.36.0. - [Release notes](https://github.com/prometheus/common/releases) - [Commits](https://github.com/prometheus/common/compare/v0.35.0...v0.36.0) --- updated-dependencies: - dependency-name: github.com/prometheus/common dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-07-12 05:48:27 +01:00
dependabot[bot]	cad7f2a3e3	Bump github.com/prometheus/common from 0.34.0 to 0.35.0 (#104 ) Bumps [github.com/prometheus/common](https://github.com/prometheus/common) from 0.34.0 to 0.35.0. - [Release notes](https://github.com/prometheus/common/releases) - [Commits](https://github.com/prometheus/common/compare/v0.34.0...v0.35.0) --- updated-dependencies: - dependency-name: github.com/prometheus/common dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-07-08 09:54:03 +01:00
dependabot[bot]	57395f8901	Bump github.com/go-kit/log from 0.2.0 to 0.2.1 (#99 ) Bumps [github.com/go-kit/log](https://github.com/go-kit/log) from 0.2.0 to 0.2.1. - [Release notes](https://github.com/go-kit/log/releases) - [Commits](https://github.com/go-kit/log/compare/v0.2.0...v0.2.1) --- updated-dependencies: - dependency-name: github.com/go-kit/log dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-17 06:04:57 +01:00
dependabot[bot]	9c5ba75ff8	Bump docker/setup-qemu-action from 1 to 2 (#96 ) Bumps [docker/setup-qemu-action](https://github.com/docker/setup-qemu-action) from 1 to 2. - [Release notes](https://github.com/docker/setup-qemu-action/releases) - [Commits](https://github.com/docker/setup-qemu-action/compare/v1...v2) --- updated-dependencies: - dependency-name: docker/setup-qemu-action dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-17 05:35:43 +01:00
dependabot[bot]	8f808b7698	Bump docker/login-action from 1 to 2 (#97 ) Bumps [docker/login-action](https://github.com/docker/login-action) from 1 to 2. - [Release notes](https://github.com/docker/login-action/releases) - [Commits](https://github.com/docker/login-action/compare/v1...v2) --- updated-dependencies: - dependency-name: docker/login-action dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-17 05:35:20 +01:00
dependabot[bot]	120cbe636d	Bump github.com/prometheus/client_golang from 1.12.1 to 1.12.2 (#98 ) Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.12.1 to 1.12.2. - [Release notes](https://github.com/prometheus/client_golang/releases) - [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md) - [Commits](https://github.com/prometheus/client_golang/compare/v1.12.1...v1.12.2) --- updated-dependencies: - dependency-name: github.com/prometheus/client_golang dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-17 05:34:42 +01:00
manishpanjwani21	67a8b2d393	Update README.md (#90 ) * Update README.md Added the Example for type - kubernetes * Update README.md Co-authored-by: Rob Best <robertbest89@gmail.com>	2022-05-09 17:56:42 +01:00
Rob Best	52fb44781c	Amend module path for v2	2022-05-07 09:33:55 +01:00
dependabot[bot]	793444c203	Bump actions/setup-go from 1 to 3 (#94 ) Bumps [actions/setup-go](https://github.com/actions/setup-go) from 1 to 3. - [Release notes](https://github.com/actions/setup-go/releases) - [Commits](https://github.com/actions/setup-go/compare/v1...v3) --- updated-dependencies: - dependency-name: actions/setup-go dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-06 18:36:25 +01:00
dependabot[bot]	a4b90c67c5	Bump actions/checkout from 2 to 3 (#95 ) Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/v2...v3) --- updated-dependencies: - dependency-name: actions/checkout dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-06 18:36:03 +01:00
dependabot[bot]	ee7c7c64de	Bump actions/upload-artifact from 2 to 3 (#93 ) Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2 to 3. - [Release notes](https://github.com/actions/upload-artifact/releases) - [Commits](https://github.com/actions/upload-artifact/compare/v2...v3) --- updated-dependencies: - dependency-name: actions/upload-artifact dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-05-06 18:35:46 +01:00
Rob Best	cd7adea7cb	Update kubernetes deps	2022-05-05 15:21:54 +01:00
Rob Best	ee51a3ec43	Update go.mod and add dependabot	2022-05-05 14:53:10 +01:00
teuto.net Netzdienste GmbH	65249bc2e7	added pop3 STARTTLS queryResponse (#84 ) * added pop3 STARTTLS queryResponse * implemented pop3 test, added pop3 starttls parameter to README Co-authored-by: Timo Boldt <tb@teuto.net>	2021-12-31 13:47:05 +00:00
Rob Best	8e318931c5	Build multi-arch docker images	2021-12-31 11:59:20 +00:00
Rob Best	d38244bc39	Release additional archs	2021-12-30 19:39:43 +00:00
Rob Best	02d61835e8	Add default_module and target options If default_module is set then the exporter will use that when the module parameter isn't set. If target is set for a module then the module will use that target, ignoring the target parameter completely.	2021-12-23 15:28:41 +00:00
Rob Best	087c407585	Move grafana dashboard to contrib I'm not actively maintaining this and a contrib diredctory indicates that.	2021-12-23 13:36:54 +00:00
Rob Best	d475f3abd2	Update release instructions	2021-12-23 13:22:10 +00:00
Vegar Sechmann Molvig	a8dcb43b44	Use FieldSelector to select only tls secrets (#82 ) This speeds up the listing of certs significatnyly in clusters with many secrets.	2021-12-23 13:18:24 +00:00
Rob Best	0b960631e6	CI improvements	2021-12-23 12:38:02 +00:00
Rob Best	88198bf608	Install goreleaser with go install	2021-12-23 12:33:58 +00:00
Rob Best	b5b2729d01	Go 1.17 and update deps	2021-12-23 12:32:51 +00:00
Ben Ritcey	43dee906c6	Support TLS renegotiation (#83 ) * Support TLS renegotiation * Bump version * Revert version bump * Extend TLSConfig with renegotiation support * Update config/config.go - comment formatting Co-authored-by: Rob Best <robertbest89@gmail.com> * add dedicated renegotiation example * Create local NewTLSConfig in order to incorporate local extentions * go mod tidy * Move TLS renegotiation parsing into UnmarshalYAML Co-authored-by: Rob Best <robertbest89@gmail.com>	2021-12-09 08:34:59 +00:00
Rob Best	78306b97c9	actions: push to Docker Hub	2021-09-11 13:06:47 +01:00
Rob Best	08d9a665b6	Release 2.3.1	2021-08-23 17:44:15 +01:00
Tarvi Pillessaar	a94845ae5d	Add support for postgresql protocol (#77 ) With postgresql to initiate SSL-encrypted connection specific combination of bytes must be sent to the server. Message flow is described on following page https://www.postgresql.org/docs/13/protocol-flow.html#id-1.10.5.7.11 And SSLRequest message format is described on https://www.postgresql.org/docs/13/protocol-message-formats.html The value of SSLRequest message becomes to bytes that is used in the code	2021-08-23 08:39:40 +01:00
Johan Fleury	ef1a35d69f	Update dependencies (#76 ) * Update dependencies Fixes #75 * Remove vendor directory	2021-08-07 18:58:33 +01:00
Rob Best	4aaa67e80a	Release 2.2.1	2021-06-23 17:28:29 +01:00
Johan Fleury	83f01274fc	Move to github.com/prometheus/common/promlog for logging (#71 ) * Move to yaml.v3 everywhere * Switch to github.com/prometheus/common/promlog for logging	2021-06-23 17:22:22 +01:00
Rob Best	d5cbd64f94	Update README.md - Remove TOC (Github provides one) - Add quicker links at the top of the doc	2021-05-05 22:48:07 +01:00
treydock	5265251777	Support getting certificate information from a kubeconfig file (#61 ) * Support getting certificate information from a kubeconfig file * Support relative paths for cluster CA and user certificate in kubeconfig * Determine relative using filepath.IsAbs * Make relative path logic actually work, add test. Move all kubeconfig parsing into parsing specific function	2021-04-02 10:53:31 +01:00
duchuan	b37574b48f	[added] release target add mips64le (#65 ) Co-authored-by: duchuanLX <duhchuan@loongson.cn>	2021-02-28 11:00:10 +00:00
Rob Best	5d3ac12e65	release 2.2.0	2020-12-07 20:18:38 +00:00
Rob Best	44d8713091	Add test for TLS version metric	2020-11-19 22:53:47 +00:00
Rob Best	8cde56ce6a	Fix examples in the README	2020-11-16 08:47:52 +00:00
Rob Best	fdda9c3eca	Add prober column to metrics table	2020-11-16 08:40:48 +00:00
Rob Best	d92d7bed30	Add file prober to example config	2020-11-16 00:49:31 +00:00
Rob Best	ca7aa1f14e	Fix golint errors	2020-11-16 00:48:15 +00:00
Rob Best	13a03b1e2b	Move tests to prober package	2020-11-16 00:41:36 +00:00
Rob Best	67539b6000	Use same results check for file + kube probes	2020-11-15 22:39:38 +00:00
Rob Best	f4782e3093	Make the description in the README more succinct	2020-11-15 22:28:36 +00:00
Rob Best	63dcb9aff1	Add kubernetes prober	2020-11-15 22:12:18 +00:00
Rob Best	0506638f63	Add file prober	2020-11-15 13:59:51 +00:00
Rob Best	c74c0de901	Refactor prober function and metrics collection The existing implementation consists of a collector that exports information from a tls.ConnectionState returned by the prober function. This won't necessarily integrate well with additional probers that retrieve certs from sources other than a tls handshake (from file, for instance). I've made the probing more generically expandable by removing the collector and instead registering and collecting metrics inside the prober. This makes it possible to collect the same metrics in a different way, or collect different metrics depending on the prober.	2020-11-07 17:17:06 +00:00
				`@@ -1 +0,0 @@`
				`Copyright 2012 Matt T. Proud (matt.proud@gmail.com)`