Publish podinfo-6.11.2.tgz

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

.circleci/config.yml

@@ -1,112 +1,5 @@
-version: 2.1
+version: 2
 jobs:
-  e2e-kubernetes:
-    machine: true
-    steps:
-      - checkout
-      - run:
-          name: Build podinfo container
-          command: e2e/build.sh
-      - run:
-          name: Start Kubernetes Kind cluster
-          command: e2e/bootstrap.sh
-      - run:
-          name: Install podinfo with Helm
-          command: e2e/install.sh
-      - run:
-          name: Run Helm tests
-          command: e2e/test.sh
-
-  push-container:
-    docker:
-      - image: circleci/golang:1.13
-    working_directory: ~/build
-    steps:
-      - checkout
-      - setup_remote_docker:
-          docker_layer_caching: false
-      - run: make build-container
-      - run: |
-          if [ -z "$CIRCLE_TAG" ]; then
-            echo "Not a release, skipping container push";
-          else
-            echo $DOCKER_PASS | docker login -u $DOCKER_USER --password-stdin;
-            echo $QUAY_PASS | docker login -u $QUAY_USER --password-stdin quay.io;
-            make push-container;
-          fi
-
-  push-binary:
-    docker:
-      - image: circleci/golang:1.13
-    steps:
-      - checkout
-      - run: curl -sL https://git.io/goreleaser | bash
-
-  push-helm-charts:
-    docker:
-      - image: circleci/golang:1.13
-    steps:
-      - checkout
-      - run:
-          name: Install kubectl
-          command: sudo curl -L https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl -o /usr/local/bin/kubectl && sudo chmod +x /usr/local/bin/kubectl
-      - run:
-          name: Install helm
-          command: sudo curl -L https://storage.googleapis.com/kubernetes-helm/helm-v2.14.2-linux-amd64.tar.gz | tar xz && sudo mv linux-amd64/helm /bin/helm && sudo rm -rf linux-amd64
-      - run:
-          name: Initialize helm
-          command:  helm init --client-only --kubeconfig=$HOME/.kube/kubeconfig
-      - run:
-          name: Lint charts
-          command: |
-            helm lint ./charts/*
-      - run:
-          name: Package charts
-          command: |
-            mkdir $HOME/charts
-            helm package ./charts/* --destination $HOME/charts
-      - run:
-          name: Publish charts
-          command: |
-            if echo "${CIRCLE_TAG}" | grep -Eq "[0-9]+(\.[0-9]+)*(-[a-z]+)?$"; then
-              REPOSITORY="https://stefanprodan:${GITHUB_TOKEN}@github.com/stefanprodan/podinfo.git"
-              git config user.email stefanprodan@users.noreply.github.com
-              git config user.name stefanprodan
-              git remote set-url origin ${REPOSITORY}
-              git checkout gh-pages
-              mv -f $HOME/charts/*.tgz .
-              helm repo index . --url https://stefanprodan.github.io/podinfo
-              git add .
-              git commit -m "Publish Helm charts v${CIRCLE_TAG}"
-              git push origin gh-pages
-            else
-              echo "Not a release! Skip charts publish"
-            fi
-
-workflows:
-  version: 2
-  build-test:
-    jobs:
-      - e2e-kubernetes
-  release:
-    jobs:
-      - push-binary:
-          filters:
-            branches:
-              ignore: /.*/
-            tags:
-              ignore: /^chart.*/
-      - push-container:
-          filters:
-            branches:
-              ignore: /.*/
-            tags:
-              ignore: /^chart.*/
-      - push-helm-charts:
-          requires:
-            - push-container
-          filters:
-            branches:
-              ignore: /.*/
-            tags:
-              ignore: /^chart.*/
+  build:
+    branches:
+      ignore: gh-pages

.gitignore

@@ -1,22 +0,0 @@
-# Binaries for programs and plugins
-*.exe
-*.dll
-*.so
-*.dylib
-
-# Test binary, build with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
-.DS_Store
-
-# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
-.glide/
-.idea/
-release/
-build/
-gcloud/
-dist/
-bin/

.goreleaser.yml

@@ -1,16 +0,0 @@
-builds:
-  - main: ./cmd/podcli
-    binary: podcli
-    ldflags: -s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION={{.Commit}}
-    goos:
-      - windows
-      - darwin
-      - linux
-    goarch:
-      - amd64
-    env:
-      - CGO_ENABLED=0
-archives:
-  - name_template: "{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
-    files:
-      - none*

Dockerfile

@@ -1,39 +0,0 @@
-FROM golang:1.13 as builder
-
-RUN mkdir -p /podinfo/
-
-WORKDIR /podinfo
-
-COPY . .
-
-RUN go mod download
-
-RUN go test -v -race ./...
-
-RUN GIT_COMMIT=$(git rev-list -1 HEAD) && \
-    CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w \
-    -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${GIT_COMMIT}" \
-    -a -o bin/podinfo cmd/podinfo/*
-
-RUN GIT_COMMIT=$(git rev-list -1 HEAD) && \
-    CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w \
-    -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${GIT_COMMIT}" \
-    -a -o bin/podcli cmd/podcli/*
-
-FROM alpine:3.10
-
-RUN addgroup -S app \
-    && adduser -S -g app app \
-    && apk --no-cache add \
-    curl openssl netcat-openbsd
-
-WORKDIR /home/app
-
-COPY --from=builder /podinfo/bin/podinfo .
-COPY --from=builder /podinfo/bin/podcli /usr/local/bin/podcli
-COPY ./ui ./ui
-RUN chown -R app:app ./
-
-USER app
-
-CMD ["./podinfo"]

LICENSE

@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2018 Stefan Prodan
-
-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.

Makefile

@@ -1,63 +0,0 @@
-# Makefile for releasing podinfo
-#
-# The release version is controlled from pkg/version
-
-TAG?=latest
-NAME:=podinfo
-DOCKER_REPOSITORY:=stefanprodan
-DOCKER_IMAGE_NAME:=$(DOCKER_REPOSITORY)/$(NAME)
-GIT_COMMIT:=$(shell git describe --dirty --always)
-VERSION:=$(shell grep 'VERSION' pkg/version/version.go | awk '{ print $$4 }' | tr -d '"')
-
-run:
-	GO111MODULE=on go run -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" cmd/podinfo/* \
-	--level=debug --grpc-port=9999 --backend-url=https://httpbin.org/status/401 --backend-url=https://httpbin.org/status/500 \
-	--ui-logo=https://media.giphy.com/media/l0ExbNdlJFGRphMR2/giphy.gif
-
-test:
-	GO111MODULE=on go test -v -race ./...
-
-build:
-	GO111MODULE=on GIT_COMMIT=$$(git rev-list -1 HEAD) && GO111MODULE=on CGO_ENABLED=0 go build  -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" -a -o ./bin/podinfo ./cmd/podinfo/*
-	GO111MODULE=on GIT_COMMIT=$$(git rev-list -1 HEAD) && GO111MODULE=on CGO_ENABLED=0 go build  -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" -a -o ./bin/podcli ./cmd/podcli/*
-
-build-charts:
-	helm lint charts/*
-	helm package charts/*
-
-build-container:
-	docker build -t $(DOCKER_IMAGE_NAME):$(VERSION) .
-
-test-container:
-	@docker rm -f podinfo || true
-	@docker run -dp 9898:9898 --name=podinfo $(DOCKER_IMAGE_NAME):$(VERSION)
-	@docker ps
-	@TOKEN=$$(curl -sd 'test' localhost:9898/token | jq -r .token) && \
-	curl -sH "Authorization: Bearer $${TOKEN}" localhost:9898/token/validate | grep test
-
-push-container:
-	docker tag $(DOCKER_IMAGE_NAME):$(VERSION) $(DOCKER_IMAGE_NAME):latest
-	docker push $(DOCKER_IMAGE_NAME):$(VERSION)
-	docker push $(DOCKER_IMAGE_NAME):latest
-	docker tag $(DOCKER_IMAGE_NAME):$(VERSION) quay.io/$(DOCKER_IMAGE_NAME):$(VERSION)
-	docker tag $(DOCKER_IMAGE_NAME):$(VERSION) quay.io/$(DOCKER_IMAGE_NAME):latest
-	docker push quay.io/$(DOCKER_IMAGE_NAME):$(VERSION)
-	docker push quay.io/$(DOCKER_IMAGE_NAME):latest
-
-version-set:
-	@next="$(TAG)" && \
-	current="$(VERSION)" && \
-	sed -i '' "s/$$current/$$next/g" pkg/version/version.go && \
-	sed -i '' "s/tag: $$current/tag: $$next/g" charts/podinfo/values.yaml && \
-	sed -i '' "s/appVersion: $$current/appVersion: $$next/g" charts/podinfo/Chart.yaml && \
-	sed -i '' "s/version: $$current/version: $$next/g" charts/podinfo/Chart.yaml && \
-	sed -i '' "s/podinfo:$$current/podinfo:$$next/g" kustomize/deployment.yaml && \
-	echo "Version $$next set in code, deployment, chart and kustomize"
-
-release:
-	git tag $(VERSION)
-	git push origin $(VERSION)
-
-swagger:
-	GO111MODULE=on go get github.com/swaggo/swag/cmd/swag
-	cd pkg/api && $$(go env GOPATH)/bin/swag init -g server.go

README.md

@@ -1,96 +0,0 @@
-# podinfo
-
-[![CircleCI](https://circleci.com/gh/stefanprodan/podinfo.svg?style=svg)](https://circleci.com/gh/stefanprodan/podinfo)
-[![Go Report Card](https://goreportcard.com/badge/github.com/stefanprodan/podinfo)](https://goreportcard.com/report/github.com/stefanprodan/podinfo)
-[![Docker Pulls](https://img.shields.io/docker/pulls/stefanprodan/podinfo)](https://hub.docker.com/r/stefanprodan/podinfo)
-
-Podinfo is a tiny web application made with Go that showcases best practices of running microservices in Kubernetes.
-
-Specifications:
-
-* Health checks (readiness and liveness)
-* Graceful shutdown on interrupt signals
-* File watcher for secrets and configmaps
-* Instrumented with Prometheus
-* Tracing with Istio and Jaeger
-* Linkerd service profile
-* Structured logging with zap 
-* 12-factor app with viper
-* Fault injection (random errors and latency)
-* Swagger docs
-* Helm and Kustomize installers
-* End-to-End testing with Kubernetes Kind and Helm
-
-Web API:
-
-* `GET /` prints runtime information
-* `GET /version` prints podinfo version and git commit hash 
-* `GET /metrics` return HTTP requests duration and Go runtime metrics
-* `GET /healthz` used by Kubernetes liveness probe
-* `GET /readyz` used by Kubernetes readiness probe
-* `POST /readyz/enable` signals the Kubernetes LB that this instance is ready to receive traffic
-* `POST /readyz/disable` signals the Kubernetes LB to stop sending requests to this instance
-* `GET /status/{code}` returns the status code
-* `GET /panic` crashes the process with exit code 255
-* `POST /echo` forwards the call to the backend service and echos the posted content 
-* `GET /env` returns the environment variables as a JSON array
-* `GET /headers` returns a JSON with the request HTTP headers
-* `GET /delay/{seconds}` waits for the specified period
-* `POST /token` issues a JWT token valid for one minute `JWT=$(curl -sd 'anon' podinfo:9898/token | jq -r .token)`
-* `GET /token/validate` validates the JWT token `curl -H "Authorization: Bearer $JWT" podinfo:9898/token/validate`
-* `GET /configs` returns a JSON with configmaps and/or secrets mounted in the `config` volume
-* `POST /store` writes the posted content to disk at /data/hash and returns the SHA1 hash of the content
-* `GET /store/{hash}` returns the content of the file /data/hash if exists
-* `GET /ws/echo` echos content via websockets `podcli ws ws://localhost:9898/ws/echo`
-* `GET /chunked/{seconds}` uses `transfer-encoding` type `chunked` to give a partial response and then waits for the specified period
-* `GET /swagger.json` returns the API Swagger docs, used for Linkerd service profiling and Gloo routes discovery
-
-gRPC API:
-
-* `/grpc.health.v1.Health/Check` health checking
-
-Web UI:
-
-![podinfo-ui](https://raw.githubusercontent.com/stefanprodan/podinfo/gh-pages/screens/podinfo-ui.png)
-
-To access the Swagger UI open `<podinfo-host>/swagger/index.html` in a browser.
-
-### Guides
-
-* [Automated canary deployments with Flagger and Istio](https://medium.com/google-cloud/automated-canary-deployments-with-flagger-and-istio-ac747827f9d1)
-* [Kubernetes autoscaling with Istio metrics](https://medium.com/google-cloud/kubernetes-autoscaling-with-istio-metrics-76442253a45a)
-* [Managing Helm releases the GitOps way](https://medium.com/google-cloud/managing-helm-releases-the-gitops-way-207a6ac6ff0e)
-* [Expose Kubernetes services over HTTPS with Ngrok](https://stefanprodan.com/2018/expose-kubernetes-services-over-http-with-ngrok/)
-
-### Install
-
-Helm:
-
-```bash
-helm repo add sp https://stefanprodan.github.io/podinfo
-
-helm upgrade --install --wait frontend \
---namespace test \
---set replicaCount=2 \
---set backend=http://backend-podinfo:9898/echo \
-sp/podinfo
-
-helm test frontend --cleanup
-
-helm upgrade --install --wait backend \
---namespace test \
---set hpa.enabled=true \
-sp/podinfo
-```
-
-Kustomize:
-
-```bash
-kubectl apply -k github.com/stefanprodan/podinfo//kustomize
-```
-
-Docker:
-
-```bash
-docker run -dp 9898:9898 stefanprodan/podinfo
-```

charts/ngrok/.helmignore

@@ -1,21 +0,0 @@
-# Patterns to ignore when building packages.
-# This supports shell glob matching, relative path matching, and
-# negation (prefixed with !). Only one pattern per line.
-.DS_Store
-# Common VCS dirs
-.git/
-.gitignore
-.bzr/
-.bzrignore
-.hg/
-.hgignore
-.svn/
-# Common backup files
-*.swp
-*.bak
-*.tmp
-*~
-# Various IDEs
-.project
-.idea/
-*.tmproj

charts/ngrok/Chart.yaml

@@ -1,5 +0,0 @@
-apiVersion: v1
-appVersion: "1.0"
-description: A Ngrok Helm chart for Kubernetes
-name: ngrok
-version: 0.2.0

charts/ngrok/README.md

@@ -1,64 +0,0 @@
-# Ngrok
-
-Expose Kubernetes service with [Ngrok](https://ngrok.com).
-
-## Installing the Chart
-
-To install the chart with the release name `my-release`:
-
-```console
-$ helm install sp/ngrok --name my-release \
-  --set token=NGROK-TOKEN \
-  --set expose.service=podinfo:9898
-```
-
-The command deploys Ngrok on the Kubernetes cluster in the default namespace.
-The [configuration](#configuration) section lists the parameters that can be configured during installation.
-
-## Uninstalling the Chart
-
-To uninstall/delete the `my-release` deployment:
-
-```console
-$ helm delete --purge my-release
-```
-
-The command removes all the Kubernetes components associated with the chart and deletes the release.
-
-## Configuration
-
-The following tables lists the configurable parameters of the Grafana chart and their default values.
-
-Parameter | Description | Default
---- | --- | ---
-`image.repository` | Image repository | `stefanprodan/ngrok`
-`image.pullPolicy` | Image pull policy | `IfNotPresent`
-`image.tag` | Image tag | `latest`
-`replicaCount` | desired number of pods | `1`
-`tolerations` | List of node taints to tolerate | `[]`
-`affinity` | node/pod affinities | `node`
-`nodeSelector` | node labels for pod assignment | `{}`
-`service.type` | type of service | `ClusterIP`
-`token` | Ngrok auth token | `none`
-`expose.service` | Service address to be exposed as in `service-name:port` | `none`
-`subdomain` | Ngrok subdomain | `none`
-
-Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
-
-```console
-$ helm upgrade --install --wait tunel \
-  --set token=NGROK-TOKEN \
-  --set service.type=NodePort \
-  --set expose.service=podinfo:9898 \
-  sp/ngrok
-```
-
-Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
-
-```console
-$ helm install sp/grafana --name my-release -f values.yaml
-```
-
-> **Tip**: You can use the default [values.yaml](values.yaml)
-```
-

charts/ngrok/templates/NOTES.txt

@@ -1,15 +0,0 @@
-1. Get the application URL by running these commands:
-{{- if contains "NodePort" .Values.service.type }}
-  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "ngrok.fullname" . }})
-  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
-  echo http://$NODE_IP:$NODE_PORT
-{{- else if contains "LoadBalancer" .Values.service.type }}
-     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
-           You can watch the status of by running 'kubectl get svc -w {{ template "ngrok.fullname" . }}'
-  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "ngrok.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
-  echo http://$SERVICE_IP:{{ .Values.service.port }}
-{{- else if contains "ClusterIP" .Values.service.type }}
-  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "ngrok.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
-  echo "Visit http://127.0.0.1:8080 to use your application"
-  kubectl port-forward $POD_NAME 8080:80
-{{- end }}

charts/ngrok/templates/_helpers.tpl

@@ -1,32 +0,0 @@
-{{/* vim: set filetype=mustache: */}}
-{{/*
-Expand the name of the chart.
-*/}}
-{{- define "ngrok.name" -}}
-{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
-
-{{/*
-Create a default fully qualified app name.
-We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
-If release name contains chart name it will be used as a full name.
-*/}}
-{{- define "ngrok.fullname" -}}
-{{- if .Values.fullnameOverride -}}
-{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
-{{- else -}}
-{{- $name := default .Chart.Name .Values.nameOverride -}}
-{{- if contains $name .Release.Name -}}
-{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
-{{- else -}}
-{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
-
-{{/*
-Create chart name and version as used by the chart label.
-*/}}
-{{- define "ngrok.chart" -}}
-{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
-{{- end -}}

charts/ngrok/templates/config.yaml

@@ -1,12 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: {{ template "ngrok.fullname" . }}
-data:
-  ngrok.yml: |-
-    web_addr: 0.0.0.0:4040
-    update: false
-    log: stdout
-{{- if .Values.token }}
-    authtoken: {{ .Values.token }}
-{{- end }}

charts/ngrok/templates/deployment.yaml

@@ -1,65 +0,0 @@
-apiVersion: apps/v1beta2
-kind: Deployment
-metadata:
-  name: {{ template "ngrok.fullname" . }}
-  labels:
-    app: {{ template "ngrok.name" . }}
-    chart: {{ template "ngrok.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-spec:
-  replicas: {{ .Values.replicaCount }}
-  selector:
-    matchLabels:
-      app: {{ template "ngrok.name" . }}
-      release: {{ .Release.Name }}
-  template:
-    metadata:
-      labels:
-        app: {{ template "ngrok.name" . }}
-        release: {{ .Release.Name }}
-      annotations:
-        prometheus.io/scrape: 'false'
-    spec:
-      containers:
-        - name: {{ .Chart.Name }}
-          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
-          imagePullPolicy: {{ .Values.image.pullPolicy }}
-          command:
-            - ./ngrok
-            - http
-            {{- if .Values.subdomain }}
-            - --subdomain={{ .Values.subdomain }}
-            {{- end }}
-            - {{ .Values.expose.service }}
-          volumeMounts:
-          - name: config
-            mountPath: /home/ngrok/.ngrok2
-          ports:
-            - name: http
-              containerPort: 4040
-              protocol: TCP
-          livenessProbe:
-            httpGet:
-              path: /api/tunnels
-              port: http
-            initialDelaySeconds: 10
-            periodSeconds: 30
-          resources:
-{{ toYaml .Values.resources | indent 12 }}
-    {{- with .Values.nodeSelector }}
-      nodeSelector:
-{{ toYaml . | indent 8 }}
-    {{- end }}
-    {{- with .Values.affinity }}
-      affinity:
-{{ toYaml . | indent 8 }}
-    {{- end }}
-    {{- with .Values.tolerations }}
-      tolerations:
-{{ toYaml . | indent 8 }}
-    {{- end }}
-      volumes:
-      - name: config
-        configMap:
-          name: {{ template "ngrok.fullname" . }}

charts/ngrok/templates/service.yaml

@@ -1,19 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: {{ template "ngrok.fullname" . }}
-  labels:
-    app: {{ template "ngrok.name" . }}
-    chart: {{ template "ngrok.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-spec:
-  type: {{ .Values.service.type }}
-  ports:
-    - port: {{ .Values.service.port }}
-      targetPort: http
-      protocol: TCP
-      name: http
-  selector:
-    app: {{ template "ngrok.name" . }}
-    release: {{ .Release.Name }}

charts/ngrok/values.yaml

@@ -1,27 +0,0 @@
-# Default values for ngrok.
-# This is a YAML-formatted file.
-# Declare variables to be passed into your templates.
-
-replicaCount: 1
-
-image:
-  repository: stefanprodan/ngrok
-  tag: latest
-  pullPolicy: IfNotPresent
-
-service:
-  type: ClusterIP
-  port: 4040
-
-expose:
-  service: ga-podinfo:9898
-
-token: 4i3rDinhLqMHtvez71N9S_38rkS7onwv77VFNZTaUR6
-
-nodeSelector: {}
-
-tolerations: []
-
-affinity: {}
-
-subdomain:

charts/podinfo/.helmignore

@@ -1,21 +0,0 @@
-# Patterns to ignore when building packages.
-# This supports shell glob matching, relative path matching, and
-# negation (prefixed with !). Only one pattern per line.
-.DS_Store
-# Common VCS dirs
-.git/
-.gitignore
-.bzr/
-.bzrignore
-.hg/
-.hgignore
-.svn/
-# Common backup files
-*.swp
-*.bak
-*.tmp
-*~
-# Various IDEs
-.project
-.idea/
-*.tmproj

charts/podinfo/Chart.yaml

@@ -1,12 +0,0 @@
-apiVersion: v1
-version: 3.1.3
-appVersion: 3.1.3
-name: podinfo
-engine: gotpl
-description: Podinfo Helm chart for Kubernetes
-home: https://github.com/stefanprodan/podinfo
-maintainers:
-- email: stefanprodan@users.noreply.github.com
-  name: stefanprodan
-sources:
-- https://github.com/stefanprodan/podinfo

charts/podinfo/README.md

@@ -1,86 +0,0 @@
-# Podinfo
-
-Podinfo is a tiny web application made with Go 
-that showcases best practices of running microservices in Kubernetes.
-
-## Installing the Chart
-
-To install the chart with the release name `my-release`:
-
-```console
-$ helm repo add sp https://stefanprodan.github.io/podinfo
-$ helm upgrade my-release --install sp/podinfo 
-```
-
-The command deploys podinfo on the Kubernetes cluster in the default namespace.
-The [configuration](#configuration) section lists the parameters that can be configured during installation.
-
-## Uninstalling the Chart
-
-To uninstall/delete the `my-release` deployment:
-
-```console
-$ helm delete --purge my-release
-```
-
-The command removes all the Kubernetes components associated with the chart and deletes the release.
-
-## Configuration
-
-The following tables lists the configurable parameters of the podinfo chart and their default values.
-
-Parameter | Description | Default
---- | --- | ---
-`affinity` | node/pod affinities | None
-`backend` | echo backend URL | None
-`backends` | echo backend URL array | None
-`faults.delay` | random HTTP response delays between 0 and 5 seconds | `false`
-`faults.error` | 1/3 chances of a random HTTP response error | `false`
-`hpa.enabled` | enables HPA | `false`
-`hpa.cpu` | target CPU usage per pod | None
-`hpa.memory` | target memory usage per pod | None
-`hpa.requests` | target requests per second per pod | None
-`hpa.maxReplicas` | maximum pod replicas | `10`
-`image.pullPolicy` | image pull policy | `IfNotPresent`
-`image.repository` | image repository | `stefanprodan/podinfo`
-`image.tag` | image tag | `<VERSION>`
-`ingress.enabled` | enables ingress | `false`
-`ingress.annotations` | ingress annotations | None
-`ingress.hosts` | ingress accepted hostnames | None
-`ingress.tls` | ingress TLS configuration | None
-`message` | UI greetings message | None
-`nodeSelector` | node labels for pod assignment | `{}`
-`replicaCount` | desired number of pods | `2`
-`resources.requests/cpu` | pod CPU request | `1m`
-`resources.requests/memory` | pod memory request | `16Mi`
-`resources.limits/cpu` | pod CPU limit | None
-`resources.limits/memory` | pod memory limit | None
-`service.enabled` | create Kubernetes service (should be disabled when using Flagger) | `true`
-`service.metricsPort` | Prometheus metrics endpoint port | `9797`
-`service.externalPort` | ClusterIP HTTP port | `9898`
-`service.httpPort` | container HTTP port | `9898`
-`service.nodePort` | NodePort for the HTTP endpoint | `31198`
-`service.grpcPort` | ClusterIP gPRC port | `9999`
-`service.grpcService` | gPRC service name | `podinfo`
-`service.type` | type of service | `ClusterIP`
-`tolerations` | list of node taints to tolerate | `[]`
-`serviceAccount.enabled` | specifies whether a service account should be created | `false`
-`serviceAccount.name` | the name of the service account to use, if not set and create is true, a name is generated using the fullname template | None
-`linkerd.profile.enabled` | create Linkerd service profile | `false`
-
-Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
-
-```console
-$ helm install stable/podinfo --name my-release \
-  --set=image.tag=0.0.2,service.type=NodePort
-```
-
-Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
-
-```console
-$ helm install stable/podinfo --name my-release -f values.yaml
-```
-
-> **Tip**: You can use the default [values.yaml](values.yaml)
-```
-

charts/podinfo/templates/NOTES.txt

@@ -1,19 +0,0 @@
-1. Get the application URL by running these commands:
-{{- if .Values.ingress.enabled }}
-{{- range .Values.ingress.hosts }}
-  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
-{{- end }}
-{{- else if contains "NodePort" .Values.service.type }}
-  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "podinfo.fullname" . }})
-  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
-  echo http://$NODE_IP:$NODE_PORT
-{{- else if contains "LoadBalancer" .Values.service.type }}
-     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
-           You can watch the status of by running 'kubectl get svc -w {{ template "podinfo.fullname" . }}'
-  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "podinfo.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
-  echo http://$SERVICE_IP:{{ .Values.service.port }}
-{{- else if contains "ClusterIP" .Values.service.type }}
-  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "podinfo.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
-  echo "Visit http://127.0.0.1:8080 to use your application"
-  kubectl port-forward $POD_NAME 8080:{{ .Values.service.externalPort }}
-{{- end }}

charts/podinfo/templates/_helpers.tpl

@@ -1,43 +0,0 @@
-{{/* vim: set filetype=mustache: */}}
-{{/*
-Expand the name of the chart.
-*/}}
-{{- define "podinfo.name" -}}
-{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
-
-{{/*
-Create a default fully qualified app name.
-We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
-If release name contains chart name it will be used as a full name.
-*/}}
-{{- define "podinfo.fullname" -}}
-{{- if .Values.fullnameOverride -}}
-{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
-{{- else -}}
-{{- $name := default .Chart.Name .Values.nameOverride -}}
-{{- if contains $name .Release.Name -}}
-{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
-{{- else -}}
-{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
-
-{{/*
-Create chart name and version as used by the chart label.
-*/}}
-{{- define "podinfo.chart" -}}
-{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
-
-{{/*
-Create the name of the service account to use
-*/}}
-{{- define "podinfo.serviceAccountName" -}}
-{{- if .Values.serviceAccount.enabled -}}
-    {{ default (include "podinfo.fullname" .) .Values.serviceAccount.name }}
-{{- else -}}
-    {{ default "default" .Values.serviceAccount.name }}
-{{- end -}}
-{{- end -}}

charts/podinfo/templates/deployment.yaml

@@ -1,125 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: {{ template "podinfo.fullname" . }}
-  labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-spec:
-  {{- if not .Values.hpa.enabled }}
-  replicas: {{ .Values.replicaCount }}
-  {{- end }}
-  strategy:
-    type: RollingUpdate
-    rollingUpdate:
-      maxUnavailable: 1
-  selector:
-    matchLabels:
-      app: {{ template "podinfo.name" . }}
-      release: {{ .Release.Name }}
-  template:
-    metadata:
-      labels:
-        app: {{ template "podinfo.name" . }}
-        release: {{ .Release.Name }}
-      annotations:
-        prometheus.io/scrape: "true"
-        prometheus.io/port: "{{ .Values.service.httpPort }}"
-    spec:
-      terminationGracePeriodSeconds: 30
-      {{- if .Values.serviceAccount.enabled }}
-      serviceAccountName: {{ template "podinfo.serviceAccountName" . }}
-      {{- end }}
-      containers:
-        - name: {{ .Chart.Name }}
-          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
-          imagePullPolicy: {{ .Values.image.pullPolicy }}
-          command:
-            - ./podinfo
-            - --port={{ .Values.service.httpPort | default 9898 }}
-            {{- if .Values.service.metricsPort }}
-            - --port-metrics={{ .Values.service.metricsPort }}
-            {{- end }}
-            {{- if .Values.service.grpcPort }}
-            - --grpc-port={{ .Values.service.grpcPort }}
-            {{- end }}
-            {{- if .Values.service.grpcService }}
-            - --grpc-service-name={{ .Values.service.grpcService }}
-            {{- end }}
-            {{- range .Values.backends }}
-            - --backend-url={{ . }}
-            {{- end }}
-            - --level={{ .Values.logLevel }}
-            - --random-delay={{ .Values.faults.delay }}
-            - --random-error={{ .Values.faults.error }}
-          env:
-          {{- if .Values.ui.message }}
-          - name: PODINFO_UI_MESSAGE
-            value: {{ .Values.ui.message }}
-          {{- end }}
-          {{- if .Values.ui.logo }}
-          - name: PODINFO_UI_LOGO
-            value: {{ .Values.ui.logo }}
-          {{- end }}
-          {{- if .Values.ui.color }}
-          - name: PODINFO_UI_COLOR
-            value: {{ .Values.ui.color }}
-          {{- end }}
-          {{- if .Values.backend }}
-          - name: PODINFO_BACKEND_URL
-            value: {{ .Values.backend }}
-          {{- end }}
-          ports:
-            - name: http
-              containerPort: {{ .Values.service.httpPort | default 9898 }}
-              protocol: TCP
-            {{- if .Values.service.metricsPort }}
-            - name: http-metrics
-              containerPort: {{ .Values.service.metricsPort }}
-              protocol: TCP
-            {{- end }}
-            {{- if .Values.service.grpcPort }}
-            - name: grpc
-              containerPort: {{ .Values.service.grpcPort }}
-              protocol: TCP
-            {{- end }}
-          livenessProbe:
-            exec:
-              command:
-              - podcli
-              - check
-              - http
-              - localhost:{{ .Values.service.httpPort | default 9898 }}/healthz
-            initialDelaySeconds: 1
-            timeoutSeconds: 5
-          readinessProbe:
-            exec:
-              command:
-              - podcli
-              - check
-              - http
-              - localhost:{{ .Values.service.httpPort | default 9898 }}/readyz
-            initialDelaySeconds: 1
-            timeoutSeconds: 5
-          volumeMounts:
-          - name: data
-            mountPath: /data
-          resources:
-{{ toYaml .Values.resources | indent 12 }}
-    {{- with .Values.nodeSelector }}
-      nodeSelector:
-{{ toYaml . | indent 8 }}
-    {{- end }}
-    {{- with .Values.affinity }}
-      affinity:
-{{ toYaml . | indent 8 }}
-    {{- end }}
-    {{- with .Values.tolerations }}
-      tolerations:
-{{ toYaml . | indent 8 }}
-    {{- end }}
-      volumes:
-      - name: data
-        emptyDir: {}

charts/podinfo/templates/hpa.yaml

@@ -1,32 +0,0 @@
-{{- if .Values.hpa.enabled -}}
-apiVersion: autoscaling/v2beta1
-kind: HorizontalPodAutoscaler
-metadata:
-  name: {{ template "podinfo.fullname" . }}
-spec:
-  scaleTargetRef:
-    apiVersion: apps/v1beta2
-    kind: Deployment
-    name: {{ template "podinfo.fullname" . }}
-  minReplicas: {{ .Values.replicaCount }}
-  maxReplicas: {{ .Values.hpa.maxReplicas }}
-  metrics:
-  {{- if .Values.hpa.cpu }}
-  - type: Resource
-    resource:
-      name: cpu
-      targetAverageUtilization: {{ .Values.hpa.cpu }}
-  {{- end }}
-  {{- if .Values.hpa.memory }}
-  - type: Resource
-    resource:
-      name: memory
-      targetAverageValue: {{ .Values.hpa.memory }}
-  {{- end }}
-  {{- if .Values.hpa.requests }}
-  - type: Pod
-      pods:
-        metricName: http_requests
-        targetAverageValue: {{ .Values.hpa.requests }}
-  {{- end }}
-{{- end }}

charts/podinfo/templates/ingress.yaml

@@ -1,46 +0,0 @@
-{{- if .Values.ingress.enabled -}}
-{{- $fullName := include "podinfo.fullname" . -}}
-{{- $ingressPath := .Values.ingress.path -}}
-apiVersion: extensions/v1beta1
-kind: Ingress
-metadata:
-  name: {{ $fullName }}
-  labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-{{- with .Values.ingress.annotations }}
-  annotations:
-{{ toYaml . | indent 4 }}
-{{- end }}
-spec:
-{{- if .Values.ingress.tls }}
-  tls:
-  {{- range .Values.ingress.tls }}
-    - hosts:
-      {{- range .hosts }}
-        - {{ . }}
-      {{- end }}
-      secretName: {{ .secretName }}
-  {{- end }}
-{{- end }}
-  rules:
-  {{- range .Values.ingress.hosts }}
-    - host: {{ . }}
-      http:
-        paths:
-          - path: {{ $ingressPath }}
-            backend:
-              serviceName: {{ $fullName }}
-              servicePort: http
-  {{- end }}
-  {{- if not .Values.ingress.hosts }}
-    - http:
-        paths:
-          - path: {{ $ingressPath }}
-            backend:
-              serviceName: {{ $fullName }}
-              servicePort: http
-  {{- end }}
-{{- end }}

charts/podinfo/templates/linkerd.yaml

@@ -1,88 +0,0 @@
-{{- if .Values.linkerd.profile.enabled -}}
-apiVersion: linkerd.io/v1alpha2
-kind: ServiceProfile
-metadata:
-  name: {{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
-spec:
-  routes:
-    - condition:
-        method: GET
-        pathRegex: /
-      name: GET /
-    - condition:
-        method: POST
-        pathRegex: /api/echo
-      name: POST /api/echo
-    - condition:
-        method: GET
-        pathRegex: /api/info
-      name: GET /api/info
-    - condition:
-        method: GET
-        pathRegex: /chunked/[^/]*
-      name: GET /chunked/{seconds}
-    - condition:
-        method: GET
-        pathRegex: /delay/[^/]*
-      name: GET /delay/{seconds}
-    - condition:
-        method: GET
-        pathRegex: /env
-      name: GET /env
-    - condition:
-        method: GET
-        pathRegex: /headers
-      name: GET /headers
-    - condition:
-        method: GET
-        pathRegex: /healthz
-      name: GET /healthz
-    - condition:
-        method: GET
-        pathRegex: /metrics
-      name: GET /metrics
-    - condition:
-        method: GET
-        pathRegex: /panic
-      name: GET /panic
-    - condition:
-        method: GET
-        pathRegex: /readyz
-      name: GET /readyz
-    - condition:
-        method: POST
-        pathRegex: /readyz/disable
-      name: POST /readyz/disable
-    - condition:
-        method: POST
-        pathRegex: /readyz/enable
-      name: POST /readyz/enable
-    - condition:
-        method: GET
-        pathRegex: /status/[^/]*
-      name: GET /status/{code}
-    - condition:
-        method: POST
-        pathRegex: /store
-      name: POST /store
-    - condition:
-        method: GET
-        pathRegex: /store/[^/]*
-      name: GET /store/{hash}
-    - condition:
-        method: POST
-        pathRegex: /token
-      name: POST /token
-    - condition:
-        method: POST
-        pathRegex: /token/validate
-      name: POST /token/validate
-    - condition:
-        method: GET
-        pathRegex: /version
-      name: GET /version
-    - condition:
-        method: POST
-        pathRegex: /ws/echo
-      name: POST /ws/echo
-{{- end }}

charts/podinfo/templates/service.yaml

@@ -1,30 +0,0 @@
-{{- if .Values.service.enabled -}}
-apiVersion: v1
-kind: Service
-metadata:
-  name: {{ template "podinfo.fullname" . }}
-  labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-spec:
-  type: {{ .Values.service.type }}
-  ports:
-    - port: {{ .Values.service.externalPort }}
-      targetPort: http
-      protocol: TCP
-      name: http
-      {{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.nodePort))) }}
-      nodePort: {{ .Values.service.nodePort }}
-      {{- end }}
-    {{- if .Values.service.grpcPort }}
-    - port: {{ .Values.service.grpcPort }}
-      targetPort: grpc
-      protocol: TCP
-      name: grpc
-    {{- end }}
-  selector:
-    app: {{ template "podinfo.name" . }}
-    release: {{ .Release.Name }}
-{{- end }}

charts/podinfo/templates/serviceaccount.yaml

@@ -1,11 +0,0 @@
-{{- if .Values.serviceAccount.enabled -}}
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: {{ template "podinfo.serviceAccountName" . }}
-  labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-{{- end -}}

charts/podinfo/templates/tests/grpc.yaml

@@ -1,21 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  name: {{ template "podinfo.fullname" . }}-grpc-test-{{ randAlphaNum 5 | lower }}
-  labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
-  annotations:
-    "helm.sh/hook": test-success
-    sidecar.istio.io/inject: "false"
-    linkerd.io/inject: disabled
-    appmesh.k8s.aws/sidecarInjectorWebhook: disabled
-spec:
-  containers:
-    - name: grpc-health-probe
-      image: stefanprodan/grpc_health_probe:v0.3.0
-      command: ['grpc_health_probe']
-      args:  ['-addr={{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.service.grpcPort }}']
-  restartPolicy: Never

charts/podinfo/templates/tests/jwt.yaml

@@ -1,29 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  name: {{ template "podinfo.fullname" . }}-jwt-test-{{ randAlphaNum 5 | lower }}
-  labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
-  annotations:
-    "helm.sh/hook": test-success
-    sidecar.istio.io/inject: "false"
-    linkerd.io/inject: disabled
-    appmesh.k8s.aws/sidecarInjectorWebhook: disabled
-spec:
-  containers:
-    - name: tools
-      image: giantswarm/tiny-tools
-      command:
-        - sh
-        - -c
-        - |
-          TOKEN=$(curl -sd 'test' ${PODINFO_SVC}/token | jq -r .token) &&
-          curl -sH "Authorization: Bearer ${TOKEN}" ${PODINFO_SVC}/token/validate | grep test
-      env:
-      - name: PODINFO_SVC
-        value: {{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.service.externalPort }}
-  restartPolicy: Never
-

charts/podinfo/templates/tests/service.yaml

@@ -1,27 +0,0 @@
-apiVersion: v1
-kind: Pod
-metadata:
-  name: {{ template "podinfo.fullname" . }}-service-test-{{ randAlphaNum 5 | lower }}
-  labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
-  annotations:
-    "helm.sh/hook": test-success
-    sidecar.istio.io/inject: "false"
-    linkerd.io/inject: disabled
-    appmesh.k8s.aws/sidecarInjectorWebhook: disabled
-spec:
-  containers:
-    - name: curl
-      image: giantswarm/tiny-tools
-      command:
-        - sh
-        - -c
-        - |
-          curl -s ${PODINFO_SVC}/api/info | grep version
-      env:
-        - name: PODINFO_SVC
-          value: {{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.service.externalPort }}
-  restartPolicy: Never

charts/podinfo/values.yaml

@@ -1,78 +0,0 @@
-# Default values for podinfo.
-
-replicaCount: 1
-logLevel: info
-backend: #http://backend-podinfo:9898/echo
-backends: []
-
-ui:
-  color: "cyan"
-  message: ""
-  logo: ""
-
-faults:
-  delay: false
-  error: false
-
-image:
-  repository: stefanprodan/podinfo
-  tag: 3.1.3
-  pullPolicy: IfNotPresent
-
-service:
-  enabled: true
-  type: ClusterIP
-  metricsPort: 9797
-  httpPort: 9898
-  externalPort: 9898
-  grpcPort: 9999
-  grpcService: podinfo
-  nodePort: 31198
-
-# metrics-server add-on required
-hpa:
-  enabled: false
-  maxReplicas: 10
-  # average total CPU usage per pod (1-100)
-  cpu:
-  # average memory usage per pod (100Mi-1Gi)
-  memory:
-  # average http requests per second per pod (k8s-prometheus-adapter)
-  requests:
-
-serviceAccount:
-  # Specifies whether a service account should be created
-  enabled: false
-  # The name of the service account to use.
-  # If not set and create is true, a name is generated using the fullname template
-  name:
-
-linkerd:
-  profile:
-    enabled: false
-
-ingress:
-  enabled: false
-  annotations: {}
-    # kubernetes.io/ingress.class: nginx
-    # kubernetes.io/tls-acme: "true"
-  path: /*
-  hosts: []
-#    - podinfo.local
-  tls: []
-  #  - secretName: chart-example-tls
-  #    hosts:
-  #      - chart-example.local
-
-resources:
-  limits:
-  requests:
-    cpu: 1m
-    memory: 16Mi
-
-nodeSelector: {}
-
-tolerations: []
-
-affinity: {}
-

cloudbuild.yaml

@@ -1,4 +0,0 @@
-steps:
-- name: 'gcr.io/cloud-builders/docker'
-  args: ['build','-f' , 'Dockerfile', '-t', 'gcr.io/$PROJECT_ID/podinfo:$BRANCH_NAME-$SHORT_SHA', '.']
-images: ['gcr.io/$PROJECT_ID/podinfo:$BRANCH_NAME-$SHORT_SHA']

cmd/podcli/check.go

@@ -1,313 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"context"
-	"crypto/tls"
-	"fmt"
-	"net"
-	"net/http"
-	"net/url"
-	"os"
-	"strings"
-	"time"
-
-	"github.com/spf13/cobra"
-	"go.uber.org/zap"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/health/grpc_health_v1"
-	"google.golang.org/grpc/status"
-)
-
-var (
-	retryCount      int
-	retryDelay      time.Duration
-	method          string
-	body            string
-	timeout         time.Duration
-	grpcServiceName string
-)
-
-var checkCmd = &cobra.Command{
-	Use:   `check`,
-	Short: "Health check commands",
-	Long:  "Commands for running health checks",
-}
-
-var checkUrlCmd = &cobra.Command{
-	Use:     `http [address]`,
-	Short:   "HTTP(S) health check",
-	Example: `  check http https://httpbin.org/anything --method=POST --retry=2 --delay=2s --timeout=3s --body='{"test"=1}'`,
-	RunE:    runCheck,
-}
-
-var checkTcpCmd = &cobra.Command{
-	Use:     `tcp [address]`,
-	Short:   "TCP health check",
-	Example: `  check tcp httpbin.org:443 --retry=1 --delay=2s --timeout=2s`,
-	RunE:    runCheckTCP,
-}
-
-var checkCertCmd = &cobra.Command{
-	Use:     `cert [address]`,
-	Short:   "SSL/TLS certificate validity check",
-	Example: `  check cert httpbin.org`,
-	RunE:    runCheckCert,
-}
-
-var checkgRPCCmd = &cobra.Command{
-	Use:     `grpc [address]`,
-	Short:   "gRPC health check",
-	Example: `  check grpc localhost:8080 --service=podinfo --retry=1 --delay=2s --timeout=2s`,
-	RunE:    runCheckgPRC,
-}
-
-func init() {
-	checkUrlCmd.Flags().StringVar(&method, "method", "GET", "HTTP method")
-	checkUrlCmd.Flags().StringVar(&body, "body", "", "HTTP POST/PUT content")
-	checkUrlCmd.Flags().IntVar(&retryCount, "retry", 0, "times to retry the HTTP call")
-	checkUrlCmd.Flags().DurationVar(&retryDelay, "delay", 1*time.Second, "wait duration between retries")
-	checkUrlCmd.Flags().DurationVar(&timeout, "timeout", 5*time.Second, "timeout")
-	checkCmd.AddCommand(checkUrlCmd)
-
-	checkTcpCmd.Flags().IntVar(&retryCount, "retry", 0, "times to retry the TCP check")
-	checkTcpCmd.Flags().DurationVar(&retryDelay, "delay", 1*time.Second, "wait duration between retries")
-	checkTcpCmd.Flags().DurationVar(&timeout, "timeout", 5*time.Second, "timeout")
-	checkCmd.AddCommand(checkTcpCmd)
-
-	checkgRPCCmd.Flags().IntVar(&retryCount, "retry", 0, "times to retry the TCP check")
-	checkgRPCCmd.Flags().DurationVar(&retryDelay, "delay", 1*time.Second, "wait duration between retries")
-	checkgRPCCmd.Flags().DurationVar(&timeout, "timeout", 5*time.Second, "timeout")
-	checkgRPCCmd.Flags().StringVar(&grpcServiceName, "service", "", "gRPC service name")
-	checkCmd.AddCommand(checkgRPCCmd)
-
-	checkCmd.AddCommand(checkCertCmd)
-
-	rootCmd.AddCommand(checkCmd)
-}
-
-func runCheck(cmd *cobra.Command, args []string) error {
-	if retryCount < 0 {
-		return fmt.Errorf("--retry is required")
-	}
-	if len(args) < 1 {
-		return fmt.Errorf("address is required! example: check http https://httpbin.org")
-	}
-
-	address := args[0]
-	if !strings.HasPrefix(address, "http://") && !strings.HasPrefix(address, "https://") {
-		address = fmt.Sprintf("http://%s", address)
-	}
-
-	for n := 0; n <= retryCount; n++ {
-		if n != 1 {
-			time.Sleep(retryDelay)
-		}
-
-		req, err := http.NewRequest(method, address, bytes.NewBuffer([]byte(body)))
-		if err != nil {
-			logger.Info("check failed",
-				zap.String("address", address),
-				zap.Error(err))
-			os.Exit(1)
-		}
-
-		ctx, cancel := context.WithTimeout(req.Context(), timeout)
-		resp, err := http.DefaultClient.Do(req.WithContext(ctx))
-		cancel()
-		if err != nil {
-			logger.Info("check failed",
-				zap.String("address", address),
-				zap.Error(err))
-			continue
-		}
-
-		if resp.Body != nil {
-			resp.Body.Close()
-		}
-
-		if resp.StatusCode >= 200 && resp.StatusCode < 400 {
-			logger.Info("check succeed",
-				zap.String("address", address),
-				zap.Int("status code", resp.StatusCode),
-				zap.String("response size", fmtContentLength(resp.ContentLength)))
-			os.Exit(0)
-		} else {
-			logger.Info("check failed",
-				zap.String("address", address),
-				zap.Int("status code", resp.StatusCode))
-			continue
-		}
-	}
-
-	os.Exit(1)
-	return nil
-}
-
-func runCheckTCP(cmd *cobra.Command, args []string) error {
-	if retryCount < 0 {
-		return fmt.Errorf("--retry is required")
-	}
-	if len(args) < 1 {
-		return fmt.Errorf("address is required! example: check tcp httpbin.org:80")
-	}
-	address := args[0]
-
-	for n := 0; n <= retryCount; n++ {
-		if n != 1 {
-			time.Sleep(retryDelay)
-		}
-
-		conn, err := net.DialTimeout("tcp", address, timeout)
-
-		if err != nil {
-			logger.Info("check failed",
-				zap.String("address", address),
-				zap.Error(err))
-			continue
-		}
-
-		conn.Close()
-		logger.Info("check succeed", zap.String("address", address))
-		os.Exit(0)
-
-	}
-
-	os.Exit(1)
-	return nil
-}
-
-func runCheckCert(cmd *cobra.Command, args []string) error {
-	if len(args) < 1 {
-		return fmt.Errorf("address is required! example: check cert httpbin.org")
-	}
-	host := args[0]
-	if !strings.HasPrefix(host, "https://") {
-		host = "https://" + host
-	}
-
-	u, err := url.Parse(host)
-	if err != nil {
-		logger.Info("check failed",
-			zap.String("address", host),
-			zap.Error(err))
-		os.Exit(1)
-	}
-
-	address := u.Hostname() + ":443"
-	ipConn, err := net.DialTimeout("tcp", address, 5*time.Second)
-	if err != nil {
-		logger.Info("check failed",
-			zap.String("address", address),
-			zap.Error(err))
-		os.Exit(1)
-
-	}
-
-	defer ipConn.Close()
-	conn := tls.Client(ipConn, &tls.Config{
-		InsecureSkipVerify: true,
-		ServerName:         u.Hostname(),
-	})
-	if err = conn.Handshake(); err != nil {
-		logger.Info("check failed",
-			zap.String("address", address),
-			zap.Error(err))
-		os.Exit(1)
-	}
-
-	defer conn.Close()
-	addr := conn.RemoteAddr()
-	_, _, err = net.SplitHostPort(addr.String())
-	if err != nil {
-		logger.Info("check failed",
-			zap.String("address", address),
-			zap.Error(err))
-		os.Exit(1)
-	}
-
-	cert := conn.ConnectionState().PeerCertificates[0]
-
-	timeNow := time.Now()
-	if timeNow.After(cert.NotAfter) {
-		logger.Info("check failed",
-			zap.String("address", address),
-			zap.String("issuer", cert.Issuer.CommonName),
-			zap.String("subject", cert.Subject.CommonName),
-			zap.Time("expired", cert.NotAfter))
-		os.Exit(1)
-	}
-
-	logger.Info("check succeed",
-		zap.String("address", address),
-		zap.String("issuer", cert.Issuer.CommonName),
-		zap.String("subject", cert.Subject.CommonName),
-		zap.Time("notAfter", cert.NotAfter),
-		zap.Time("notBefore", cert.NotBefore))
-
-	return nil
-}
-
-func fmtContentLength(b int64) string {
-	const unit = 1000
-	if b < unit {
-		return fmt.Sprintf("%d B", b)
-	}
-	div, exp := int64(unit), 0
-	for n := b / unit; n >= unit; n /= unit {
-		div *= unit
-		exp++
-	}
-	return fmt.Sprintf("%.1f %cB", float64(b)/float64(div), "kMGTPE"[exp])
-}
-
-func runCheckgPRC(cmd *cobra.Command, args []string) error {
-	if retryCount < 0 {
-		return fmt.Errorf("--retry is required")
-	}
-	if len(args) < 1 {
-		return fmt.Errorf("address is required! example: check grpc localhost:8080")
-	}
-	address := args[0]
-
-	for n := 0; n <= retryCount; n++ {
-		if n != 1 {
-			time.Sleep(retryDelay)
-		}
-
-		conn, err := grpc.Dial(address, grpc.WithInsecure())
-		if err != nil {
-			logger.Info("check failed",
-				zap.String("address", address),
-				zap.Error(err))
-			continue
-		}
-		ctx, cancel := context.WithTimeout(context.Background(), timeout)
-		resp, err := grpc_health_v1.NewHealthClient(conn).Check(ctx, &grpc_health_v1.HealthCheckRequest{
-			Service: grpcServiceName,
-		})
-		cancel()
-
-		if err != nil {
-			if stat, ok := status.FromError(err); ok && stat.Code() == codes.Unimplemented {
-				logger.Info("gPRC health protocol not implemented")
-				os.Exit(1)
-			} else {
-				logger.Info("check failed",
-					zap.String("address", address),
-					zap.Error(err))
-			}
-			continue
-		}
-
-		conn.Close()
-		logger.Info("check succeed",
-			zap.String("status", resp.GetStatus().String()))
-		os.Exit(0)
-
-	}
-
-	os.Exit(1)
-	return nil
-}

cmd/podcli/code.go

@@ -1,365 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io"
-	"io/ioutil"
-	"log"
-	"os"
-	"os/exec"
-	"path"
-	"path/filepath"
-	"regexp"
-	"strings"
-
-	"github.com/hashicorp/go-getter"
-	"github.com/spf13/cobra"
-)
-
-var (
-	codeProjectName string
-	codeGitUser     string
-	codeVersion     string
-	codeProjectPath string
-)
-
-var codeCmd = &cobra.Command{
-	Use:   `code`,
-	Short: "Code commands",
-}
-
-var codeInitCmd = &cobra.Command{
-	Use:     `init [name]`,
-	Short:   "initialize podinfo code repo",
-	Example: `  code init demo-app --version=v1.2.0 --git-user=stefanprodan`,
-	RunE:    runCodeInit,
-}
-
-func init() {
-	codeInitCmd.Flags().StringVar(&codeGitUser, "git-user", "", "GitHub user or org")
-	codeInitCmd.Flags().StringVar(&codeVersion, "version", "master", "podinfo repo tag or branch name")
-	codeInitCmd.Flags().StringVar(&codeProjectPath, "path", ".", "destination repo")
-
-	codeCmd.AddCommand(codeInitCmd)
-
-	rootCmd.AddCommand(codeCmd)
-}
-
-func runCodeInit(cmd *cobra.Command, args []string) error {
-
-	if len(codeGitUser) < 0 {
-		return fmt.Errorf("--git-user is required")
-	}
-	if len(args) < 1 {
-		return fmt.Errorf("project name is required")
-	}
-
-	codeProjectName = args[0]
-
-	pwd, err := os.Getwd()
-	if err != nil {
-		log.Fatalf("Error getting pwd: %s", err)
-		os.Exit(1)
-	}
-
-	tmpPath := "/tmp/k8s-podinfo"
-	versionName := fmt.Sprintf("k8s-podinfo-%s", codeVersion)
-
-	downloadURL := fmt.Sprintf("https://github.com/stefanprodan/podinfo/archive/%s.zip", codeVersion)
-	client := &getter.Client{
-		Src:  downloadURL,
-		Dst:  tmpPath,
-		Pwd:  pwd,
-		Mode: getter.ClientModeAny,
-	}
-
-	fmt.Printf("Downloading %s\n", downloadURL)
-
-	if err := client.Get(); err != nil {
-		log.Fatalf("Error downloading: %s", err)
-		os.Exit(1)
-	}
-
-	pkgFrom := "github.com/stefanprodan/podinfo"
-	pkgTo := fmt.Sprintf("github.com/%s/%s", codeGitUser, codeProjectName)
-
-	if err := replaceImports(tmpPath, pkgFrom, pkgTo); err != nil {
-		log.Fatalf("Error parsing imports: %s", err)
-		os.Exit(1)
-	}
-
-	dirs := []string{"pkg", "cmd", "ui", "vendor", ".github"}
-	for _, dir := range dirs {
-
-		err = os.MkdirAll(path.Join(codeProjectPath, dir), os.ModePerm)
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-		if err := copyDir(path.Join(tmpPath, versionName, dir), path.Join(codeProjectPath, dir)); err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-	}
-
-	files := []string{"Gopkg.toml", "Gopkg.lock"}
-	for _, file := range files {
-		if err := copyFile(path.Join(tmpPath, versionName, file), path.Join(codeProjectPath, file)); err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-
-		fileContent, err := ioutil.ReadFile(path.Join(codeProjectPath, file))
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-
-		newContent := strings.Replace(string(fileContent), pkgFrom, pkgTo, -1)
-		err = ioutil.WriteFile(path.Join(codeProjectPath, file), []byte(newContent), os.ModePerm)
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-	}
-
-	projFrom := "stefanprodan/podinfo"
-	projTo := fmt.Sprintf("%s/%s", codeGitUser, codeProjectName)
-
-	makeFiles := []string{"Makefile.gh", "Dockerfile.gh"}
-	for _, file := range makeFiles {
-		fileContent, err := ioutil.ReadFile(path.Join(tmpPath, versionName, file))
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-
-		destFile := strings.Replace(file, ".gh", "", -1)
-		newContent := strings.Replace(string(fileContent), projFrom, projTo, -1)
-		err = ioutil.WriteFile(path.Join(codeProjectPath, destFile), []byte(newContent), os.ModePerm)
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-	}
-
-	workflows := []string{".github/main.workflow"}
-	for _, file := range workflows {
-		fileContent, err := ioutil.ReadFile(path.Join(codeProjectPath, file))
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-
-		newContent := strings.Replace(string(fileContent), "Dockerfile.gh", "Dockerfile", -1)
-		err = ioutil.WriteFile(path.Join(codeProjectPath, file), []byte(newContent), os.ModePerm)
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-	}
-
-	dockerFiles := []string{"Dockerfile.ci"}
-	for _, file := range dockerFiles {
-		fileContent, err := ioutil.ReadFile(path.Join(tmpPath, versionName, file))
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-
-		newContent := strings.Replace(string(fileContent), projFrom, projTo, -1)
-		err = ioutil.WriteFile(path.Join(codeProjectPath, file), []byte(newContent), os.ModePerm)
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-	}
-
-	travisFiles := []string{"travis.lite.yml"}
-	for _, file := range travisFiles {
-		fileContent, err := ioutil.ReadFile(path.Join(tmpPath, versionName, file))
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-
-		destFile := strings.Replace(file, "travis.lite.yml", ".travis.yml", -1)
-		newContent := strings.Replace(string(fileContent), projFrom, projTo, -1)
-		err = ioutil.WriteFile(path.Join(codeProjectPath, destFile), []byte(newContent), os.ModePerm)
-		if err != nil {
-			log.Fatalf("Error: %s", err)
-			os.Exit(1)
-		}
-	}
-
-	err = gitPush()
-	if err != nil {
-		log.Fatalf("git push error: %s", err)
-		os.Exit(1)
-	}
-
-	fmt.Println("Initialization finished")
-	return nil
-}
-
-func gitPush() error {
-	cmdPush := fmt.Sprintf("git add . && git commit -m \"sync %s\" && git push", codeVersion)
-	cmd := exec.Command("sh", "-c", cmdPush)
-	output, err := cmd.Output()
-	if err != nil {
-		return err
-	}
-	fmt.Println(string(output))
-	return nil
-}
-
-func replaceImports(projectPath string, pkgFrom string, pkgTo string) error {
-	regexImport, err := regexp.Compile(`(?s)(import(.*?)\)|import.*$)`)
-	if err != nil {
-		return err
-	}
-
-	regexImportedPackage, err := regexp.Compile(`"(.*?)"`)
-	if err != nil {
-		return err
-	}
-
-	found := []string{}
-
-	err = filepath.Walk(projectPath, func(path string, info os.FileInfo, err error) error {
-		if filepath.Ext(path) == ".go" {
-			bts, err := ioutil.ReadFile(path)
-			if err != nil {
-				return err
-			}
-
-			content := string(bts)
-			matches := regexImport.FindAllString(content, -1)
-			isExists := false
-
-		isReplaceable:
-			for _, each := range matches {
-				for _, eachLine := range strings.Split(each, "\n") {
-					matchesInline := regexImportedPackage.FindAllString(eachLine, -1)
-					if err != nil {
-						return err
-					}
-
-					for _, eachSubline := range matchesInline {
-						if strings.Contains(eachSubline, pkgFrom) {
-							isExists = true
-							break isReplaceable
-						}
-					}
-				}
-			}
-
-			if isExists {
-				content = strings.Replace(content, `"`+pkgFrom+`"`, `"`+pkgTo+`"`, -1)
-				content = strings.Replace(content, `"`+pkgFrom+`/`, `"`+pkgTo+`/`, -1)
-				found = append(found, path)
-			}
-
-			err = ioutil.WriteFile(path, []byte(content), info.Mode())
-			if err != nil {
-				return err
-			}
-		}
-
-		return nil
-	})
-
-	if err != nil {
-		fmt.Println("ERROR", err.Error())
-	}
-
-	if len(found) == 0 {
-		fmt.Println("Nothing replaced")
-	} else {
-		fmt.Printf("Go imports total %d file replaced\n", len(found))
-	}
-
-	return nil
-}
-
-func copyDir(src string, dst string) error {
-	si, err := os.Stat(src)
-	if err != nil {
-		return err
-	}
-	if !si.IsDir() {
-		return fmt.Errorf("source is not a directory")
-	}
-
-	err = os.MkdirAll(dst, si.Mode())
-	if err != nil {
-		return err
-	}
-
-	entries, err := ioutil.ReadDir(src)
-	if err != nil {
-		return err
-	}
-
-	for _, entry := range entries {
-		srcPath := filepath.Join(src, entry.Name())
-		dstPath := filepath.Join(dst, entry.Name())
-
-		if entry.IsDir() {
-			err = copyDir(srcPath, dstPath)
-			if err != nil {
-				return err
-			}
-		} else {
-			// Skip symlinks.
-			if entry.Mode()&os.ModeSymlink != 0 {
-				continue
-			}
-
-			err = copyFile(srcPath, dstPath)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func copyFile(src, dst string) (err error) {
-	in, err := os.Open(src)
-	if err != nil {
-		return
-	}
-	defer in.Close()
-
-	out, err := os.Create(dst)
-	if err != nil {
-		return
-	}
-	defer func() {
-		if e := out.Close(); e != nil {
-			err = e
-		}
-	}()
-
-	_, err = io.Copy(out, in)
-	if err != nil {
-		return
-	}
-
-	err = out.Sync()
-	if err != nil {
-		return
-	}
-
-	si, err := os.Stat(src)
-	if err != nil {
-		return
-	}
-	err = os.Chmod(dst, si.Mode())
-	if err != nil {
-		return
-	}
-
-	return
-}

cmd/podcli/main.go

@@ -1,38 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/spf13/cobra"
-	"go.uber.org/zap"
-	"log"
-	"os"
-	"strings"
-)
-
-var rootCmd = &cobra.Command{
-	Use:   "podcli",
-	Short: "podinfo command line",
-	Long: `
-podinfo command line utilities`,
-}
-
-var (
-	logger *zap.Logger
-)
-
-func main() {
-
-	var err error
-	logger, err = zap.NewDevelopment()
-	if err != nil {
-		log.Fatalf("can't initialize zap logger: %v", err)
-	}
-	defer logger.Sync()
-
-	rootCmd.SetArgs(os.Args[1:])
-	if err := rootCmd.Execute(); err != nil {
-		e := err.Error()
-		fmt.Println(strings.ToUpper(e[:1]) + e[1:])
-		os.Exit(1)
-	}
-}

cmd/podcli/version.go

@@ -1,20 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/spf13/cobra"
-	"github.com/stefanprodan/podinfo/pkg/version"
-)
-
-func init() {
-	rootCmd.AddCommand(versionCmd)
-}
-
-var versionCmd = &cobra.Command{
-	Use:   `version`,
-	Short: "Prints podcli version",
-	RunE: func(cmd *cobra.Command, args []string) error {
-		fmt.Println(version.VERSION)
-		return nil
-	},
-}

cmd/podcli/ws.go

@@ -1,143 +0,0 @@
-package main
-
-import (
-	"encoding/hex"
-	"fmt"
-	"net/http"
-	"net/url"
-	"os"
-	"regexp"
-	"strings"
-
-	"github.com/chzyer/readline"
-	"github.com/fatih/color"
-	"github.com/gorilla/websocket"
-	"github.com/spf13/cobra"
-	"go.uber.org/zap"
-)
-
-var origin string
-
-func init() {
-	wsCmd.Flags().StringVarP(&origin, "origin", "o", "", "websocket origin")
-	rootCmd.AddCommand(wsCmd)
-}
-
-var wsCmd = &cobra.Command{
-	Use:     `ws [address]`,
-	Short:   "Websocket client",
-	Example: `  ws localhost:9898/ws/echo`,
-	RunE: func(cmd *cobra.Command, args []string) error {
-		if len(args) < 1 {
-			return fmt.Errorf("address is required")
-		}
-
-		address := args[0]
-		if !strings.HasPrefix(address, "ws://") && !strings.HasPrefix(address, "wss://") {
-			address = fmt.Sprintf("ws://%s", address)
-		}
-
-		dest, err := url.Parse(address)
-		if err != nil {
-			return err
-		}
-		if origin != "" {
-		} else {
-			originURL := *dest
-			if dest.Scheme == "wss" {
-				originURL.Scheme = "https"
-			} else {
-				originURL.Scheme = "http"
-			}
-			origin = originURL.String()
-		}
-
-		err = connect(dest.String(), origin, &readline.Config{
-			Prompt: "> ",
-		})
-		if err != nil {
-			logger.Info("websocket closed", zap.Error(err))
-		}
-		return nil
-	},
-}
-
-type session struct {
-	ws      *websocket.Conn
-	rl      *readline.Instance
-	errChan chan error
-}
-
-func connect(url, origin string, rlConf *readline.Config) error {
-	headers := make(http.Header)
-	headers.Add("Origin", origin)
-
-	ws, _, err := websocket.DefaultDialer.Dial(url, headers)
-	if err != nil {
-		return err
-	}
-
-	rl, err := readline.NewEx(rlConf)
-	if err != nil {
-		return err
-	}
-	defer rl.Close()
-
-	sess := &session{
-		ws:      ws,
-		rl:      rl,
-		errChan: make(chan error),
-	}
-
-	go sess.readConsole()
-	go sess.readWebsocket()
-
-	return <-sess.errChan
-}
-
-func (s *session) readConsole() {
-	for {
-		line, err := s.rl.Readline()
-		if err != nil {
-			s.errChan <- err
-			return
-		}
-
-		err = s.ws.WriteMessage(websocket.TextMessage, []byte(line))
-		if err != nil {
-			s.errChan <- err
-			return
-		}
-	}
-}
-
-func bytesToFormattedHex(bytes []byte) string {
-	text := hex.EncodeToString(bytes)
-	return regexp.MustCompile("(..)").ReplaceAllString(text, "$1 ")
-}
-
-func (s *session) readWebsocket() {
-	rxSprintf := color.New(color.FgGreen).SprintfFunc()
-
-	for {
-		msgType, buf, err := s.ws.ReadMessage()
-		if err != nil {
-			fmt.Fprint(s.rl.Stdout(), rxSprintf("< %s\n", err.Error()))
-			os.Exit(1)
-			return
-		}
-
-		var text string
-		switch msgType {
-		case websocket.TextMessage:
-			text = string(buf)
-		case websocket.BinaryMessage:
-			text = bytesToFormattedHex(buf)
-		default:
-			s.errChan <- fmt.Errorf("unknown websocket frame type: %d", msgType)
-			return
-		}
-
-		fmt.Fprint(s.rl.Stdout(), rxSprintf("< %s\n", text))
-	}
-}

cmd/podinfo/main.go

@@ -1,218 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/spf13/pflag"
-	"github.com/spf13/viper"
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
-
-	"github.com/stefanprodan/podinfo/pkg/api"
-	"github.com/stefanprodan/podinfo/pkg/grpc"
-	"github.com/stefanprodan/podinfo/pkg/signals"
-	"github.com/stefanprodan/podinfo/pkg/version"
-)
-
-func main() {
-	// flags definition
-	fs := pflag.NewFlagSet("default", pflag.ContinueOnError)
-	fs.Int("port", 9898, "HTTP port")
-	fs.Int("port-metrics", 0, "metrics port")
-	fs.Int("grpc-port", 0, "gRPC port")
-	fs.String("grpc-service-name", "podinfo", "gPRC service name")
-	fs.String("level", "info", "log level debug, info, warn, error, flat or panic")
-	fs.StringSlice("backend-url", []string{}, "backend service URL")
-	fs.Duration("http-client-timeout", 2*time.Minute, "client timeout duration")
-	fs.Duration("http-server-timeout", 30*time.Second, "server read and write timeout duration")
-	fs.Duration("http-server-shutdown-timeout", 5*time.Second, "server graceful shutdown timeout duration")
-	fs.String("data-path", "/data", "data local path")
-	fs.String("config-path", "", "config dir path")
-	fs.String("config", "config.yaml", "config file name")
-	fs.String("ui-path", "./ui", "UI local path")
-	fs.String("ui-logo", "", "UI logo")
-	fs.String("ui-color", "cyan", "UI color")
-	fs.String("ui-message", fmt.Sprintf("greetings from podinfo v%v", version.VERSION), "UI message")
-	fs.Bool("random-delay", false, "between 0 and 5 seconds random delay")
-	fs.Bool("random-error", false, "1/3 chances of a random response error")
-	fs.Int("stress-cpu", 0, "Number of CPU cores with 100 load")
-	fs.Int("stress-memory", 0, "MB of data to load into memory")
-
-	versionFlag := fs.BoolP("version", "v", false, "get version number")
-
-	// parse flags
-	err := fs.Parse(os.Args[1:])
-	switch {
-	case err == pflag.ErrHelp:
-		os.Exit(0)
-	case err != nil:
-		fmt.Fprintf(os.Stderr, "Error: %s\n\n", err.Error())
-		fs.PrintDefaults()
-		os.Exit(2)
-	case *versionFlag:
-		fmt.Println(version.VERSION)
-		os.Exit(0)
-	}
-
-	// bind flags and environment variables
-	viper.BindPFlags(fs)
-	viper.RegisterAlias("backendUrl", "backend-url")
-	hostname, _ := os.Hostname()
-	viper.SetDefault("jwt-secret", "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9")
-	viper.SetDefault("ui-logo", "https://d33wubrfki0l68.cloudfront.net/33a12d8be0bc50be4738443101616e968c7afb8f/cba76/images/scalable.png")
-	viper.Set("hostname", hostname)
-	viper.Set("version", version.VERSION)
-	viper.Set("revision", version.REVISION)
-	viper.SetEnvPrefix("PODINFO")
-	viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
-	viper.AutomaticEnv()
-
-	// load config from file
-	if _, err := os.Stat(filepath.Join(viper.GetString("config-path"), viper.GetString("config"))); err == nil {
-		viper.SetConfigName(strings.Split(viper.GetString("config"), ".")[0])
-		viper.AddConfigPath(viper.GetString("config-path"))
-		if err := viper.ReadInConfig(); err != nil {
-			fmt.Printf("Error reading config file, %v\n", err)
-		}
-	}
-
-	// configure logging
-	logger, _ := initZap(viper.GetString("level"))
-	defer logger.Sync()
-	stdLog := zap.RedirectStdLog(logger)
-	defer stdLog()
-
-	// start stress tests if any
-	beginStressTest(viper.GetInt("stress-cpu"), viper.GetInt("stress-memory"), logger)
-
-	// validate port
-	if _, err := strconv.Atoi(viper.GetString("port")); err != nil {
-		port, _ := fs.GetInt("port")
-		viper.Set("port", strconv.Itoa(port))
-	}
-
-	// load gRPC server config
-	var grpcCfg grpc.Config
-	if err := viper.Unmarshal(&grpcCfg); err != nil {
-		logger.Panic("config unmarshal failed", zap.Error(err))
-	}
-
-	// start gRPC server
-	if grpcCfg.Port > 0 {
-		grpcSrv, _ := grpc.NewServer(&grpcCfg, logger)
-		go grpcSrv.ListenAndServe()
-	}
-
-	// load HTTP server config
-	var srvCfg api.Config
-	if err := viper.Unmarshal(&srvCfg); err != nil {
-		logger.Panic("config unmarshal failed", zap.Error(err))
-	}
-
-	// log version and port
-	logger.Info("Starting podinfo",
-		zap.String("version", viper.GetString("version")),
-		zap.String("revision", viper.GetString("revision")),
-		zap.String("port", srvCfg.Port),
-	)
-
-	// start HTTP server
-	srv, _ := api.NewServer(&srvCfg, logger)
-	stopCh := signals.SetupSignalHandler()
-	srv.ListenAndServe(stopCh)
-}
-
-func initZap(logLevel string) (*zap.Logger, error) {
-	level := zap.NewAtomicLevelAt(zapcore.InfoLevel)
-	switch logLevel {
-	case "debug":
-		level = zap.NewAtomicLevelAt(zapcore.DebugLevel)
-	case "info":
-		level = zap.NewAtomicLevelAt(zapcore.InfoLevel)
-	case "warn":
-		level = zap.NewAtomicLevelAt(zapcore.WarnLevel)
-	case "error":
-		level = zap.NewAtomicLevelAt(zapcore.ErrorLevel)
-	case "fatal":
-		level = zap.NewAtomicLevelAt(zapcore.FatalLevel)
-	case "panic":
-		level = zap.NewAtomicLevelAt(zapcore.PanicLevel)
-	}
-
-	zapEncoderConfig := zapcore.EncoderConfig{
-		TimeKey:        "ts",
-		LevelKey:       "level",
-		NameKey:        "logger",
-		CallerKey:      "caller",
-		MessageKey:     "msg",
-		StacktraceKey:  "stacktrace",
-		LineEnding:     zapcore.DefaultLineEnding,
-		EncodeLevel:    zapcore.LowercaseLevelEncoder,
-		EncodeTime:     zapcore.ISO8601TimeEncoder,
-		EncodeDuration: zapcore.SecondsDurationEncoder,
-		EncodeCaller:   zapcore.ShortCallerEncoder,
-	}
-
-	zapConfig := zap.Config{
-		Level:       level,
-		Development: false,
-		Sampling: &zap.SamplingConfig{
-			Initial:    100,
-			Thereafter: 100,
-		},
-		Encoding:         "json",
-		EncoderConfig:    zapEncoderConfig,
-		OutputPaths:      []string{"stderr"},
-		ErrorOutputPaths: []string{"stderr"},
-	}
-
-	return zapConfig.Build()
-}
-
-var stressMemoryPayload []byte
-
-func beginStressTest(cpus int, mem int, logger *zap.Logger) {
-	done := make(chan int)
-	if cpus > 0 {
-		logger.Info("starting CPU stress", zap.Int("cores", cpus))
-		for i := 0; i < cpus; i++ {
-			go func() {
-				for {
-					select {
-					case <-done:
-						return
-					default:
-
-					}
-				}
-			}()
-		}
-	}
-
-	if mem > 0 {
-		path := "/tmp/podinfo.data"
-		f, err := os.Create(path)
-
-		if err != nil {
-			logger.Error("memory stress failed", zap.Error(err))
-		}
-
-		if err := f.Truncate(1000000 * int64(mem)); err != nil {
-			logger.Error("memory stress failed", zap.Error(err))
-		}
-
-		stressMemoryPayload, err = ioutil.ReadFile(path)
-		f.Close()
-		os.Remove(path)
-		if err != nil {
-			logger.Error("memory stress failed", zap.Error(err))
-		}
-		logger.Info("starting CPU stress", zap.Int("memory", len(stressMemoryPayload)))
-	}
-}

e2e/README.md

@@ -1,35 +0,0 @@
-# podinfo end-to-end testing
-
-The e2e testing infrastructure is powered by CircleCI and [Kubernetes Kind](https://github.com/kubernetes-sigs/kind).
-
-### CI workflow
-
-* download go modules
-* run unit tests
-* build container
-* install kubectl, helm and Kubernetes Kind CLIs
-* create local Kubernetes cluster with kind
-* deploy Tiller on the local cluster
-* load podinfo image onto the local cluster
-* deploy podinfo with Helm
-* run Helm tests
-
-```yaml
-jobs:
-  e2e-kubernetes:
-    machine: true
-    steps:
-      - checkout
-      - run:
-          name: Build podinfo container
-          command: e2e/build.sh
-      - run:
-          name: Start Kubernetes Kind cluster
-          command: e2e/bootstrap.sh
-      - run:
-          name: Install podinfo with Helm
-          command: e2e/install.sh
-      - run:
-          name: Run Helm tests
-          command: e2e/test.sh
-```

e2e/bootstrap.sh

@@ -1,34 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-
-REPO_ROOT=$(git rev-parse --show-toplevel)
-KIND_VERSION=v0.5.1
-
-if [[ "$1" ]]; then
-  KIND_VERSION=$1
-fi
-
-echo ">>> Installing kubectl"
-curl -sLO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl && \
-chmod +x kubectl && \
-sudo mv kubectl /usr/local/bin/
-
-echo ">>> Installing kind"
-curl -sSLo kind "https://github.com/kubernetes-sigs/kind/releases/download/$KIND_VERSION/kind-linux-amd64"
-chmod +x kind
-sudo mv kind /usr/local/bin/kind
-
-echo ">>> Creating kind cluster"
-kind create cluster --wait 5m
-
-export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"
-kubectl get pods --all-namespaces
-
-echo ">>> Installing Helm"
-curl https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get | bash
-
-echo '>>> Installing Tiller'
-kubectl --namespace kube-system create sa tiller
-kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
-helm init --service-account tiller --upgrade --wait

e2e/build.sh

@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-
-docker build -t test/podinfo:latest .
-

e2e/install.sh

@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-
-REPO_ROOT=$(git rev-parse --show-toplevel)
-export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"
-
-echo '>>> Loading image in Kind'
-kind load docker-image test/podinfo:latest
-
-echo '>>> Installing'
-helm upgrade -i podinfo ${REPO_ROOT}/charts/podinfo --namespace=default
-kubectl set image deployment/podinfo podinfo=test/podinfo:latest
-kubectl rollout status deployment/podinfo

e2e/test.sh

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-
-REPO_ROOT=$(git rev-parse --show-toplevel)
-export KUBECONFIG="$(kind get kubeconfig-path --name="kind")"
-
-function finish {
-  echo '>>> Test logs'
-  kubectl logs -l app=podinfo
-}
-trap finish EXIT
-
-echo '>>> Testing'
-helm test podinfo
-

go.mod

@@ -1,52 +0,0 @@
-module github.com/stefanprodan/podinfo
-
-go 1.13
-
-require (
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751
-	github.com/aws/aws-sdk-go v1.15.63 // indirect
-	github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 // indirect
-	github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d // indirect
-	github.com/chzyer/logex v1.1.10 // indirect
-	github.com/chzyer/readline v0.0.0-20160726135117-62c6fe619375
-	github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 // indirect
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible
-	github.com/fatih/color v1.7.0
-	github.com/fsnotify/fsnotify v1.4.7
-	github.com/go-chi/chi v4.0.2+incompatible // indirect
-	github.com/gorilla/mux v1.7.3
-	github.com/gorilla/websocket v1.4.0
-	github.com/hashicorp/go-cleanhttp v0.5.0 // indirect
-	github.com/hashicorp/go-getter v0.0.0-20180809191950-4bda8fa99001
-	github.com/hashicorp/go-safetemp v1.0.0 // indirect
-	github.com/hashicorp/go-version v1.0.0 // indirect
-	github.com/hashicorp/hcl v0.0.0-20180404174102-ef8a98b0bbce // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/magiconair/properties v1.8.0 // indirect
-	github.com/mattn/go-colorable v0.0.9 // indirect
-	github.com/mattn/go-isatty v0.0.4 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
-	github.com/mitchellh/go-homedir v1.0.0 // indirect
-	github.com/mitchellh/go-testing-interface v1.0.0 // indirect
-	github.com/mitchellh/mapstructure v0.0.0-20180715050151-f15292f7a699 // indirect
-	github.com/pelletier/go-toml v1.2.0 // indirect
-	github.com/prometheus/client_golang v0.8.0
-	github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910 // indirect
-	github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e // indirect
-	github.com/prometheus/procfs v0.0.0-20180725123919-05ee40e3a273 // indirect
-	github.com/spf13/afero v1.1.1 // indirect
-	github.com/spf13/cast v1.2.0 // indirect
-	github.com/spf13/cobra v0.0.3
-	github.com/spf13/jwalterweatherman v0.0.0-20180814060501-14d3d4c51834 // indirect
-	github.com/spf13/pflag v1.0.2
-	github.com/spf13/viper v1.1.0
-	github.com/swaggo/files v0.0.0-20190704085106-630677cd5c14 // indirect
-	github.com/swaggo/http-swagger v0.0.0-20190614090009-c2865af9083e
-	github.com/swaggo/swag v1.6.2
-	github.com/ulikunitz/xz v0.5.4 // indirect
-	go.uber.org/atomic v1.3.2 // indirect
-	go.uber.org/multierr v1.1.0 // indirect
-	go.uber.org/zap v1.9.1
-	golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 // indirect
-	google.golang.org/grpc v1.23.0
-)

go.sum

@@ -1,159 +0,0 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc=
-github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
-github.com/PuerkitoBio/purell v1.1.0 h1:rmGxhojJlM0tuKtfdvliR84CFHljx9ag64t2xmVkjK4=
-github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-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/aws/aws-sdk-go v1.15.63 h1:rPr7eEm/FSK23DoDKhbd9oLMYGT7JU9pkyfBUVOHXUo=
-github.com/aws/aws-sdk-go v1.15.63/go.mod h1:E3/ieXAlvM0XWO57iftYVDLLvQ824smPP3ATZkfNZeM=
-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/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d h1:xDfNPAt8lFiC1UJrqV3uuy861HCTo708pDMbjHHdCas=
-github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d/go.mod h1:6QX/PXZ00z/TKoufEY6K/a0k6AhaJrQKdFe6OfVXsa4=
-github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20160726135117-62c6fe619375 h1:JVe1zduaiPlSLOuQcU/MqRJkBbWRPsjdW48+20AtJXM=
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-google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
-google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
-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 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

kustomize/deployment.yaml

@@ -1,76 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: podinfo
-  labels:
-    app: podinfo
-spec:
-  minReadySeconds: 3
-  revisionHistoryLimit: 5
-  progressDeadlineSeconds: 60
-  strategy:
-    rollingUpdate:
-      maxUnavailable: 0
-    type: RollingUpdate
-  selector:
-    matchLabels:
-      app: podinfo
-  template:
-    metadata:
-      annotations:
-        prometheus.io/scrape: "true"
-        prometheus.io/port: "9797"
-      labels:
-        app: podinfo
-    spec:
-      containers:
-      - name: podinfod
-        image: stefanprodan/podinfo:3.1.3
-        imagePullPolicy: IfNotPresent
-        ports:
-        - name: http
-          containerPort: 9898
-          protocol: TCP
-        - name: http-metrics
-          containerPort: 9797
-          protocol: TCP
-        - name: grpc
-          containerPort: 9999
-          protocol: TCP
-        command:
-        - ./podinfo
-        - --port=9898
-        - --port-metrics=9797
-        - --grpc-port=9999
-        - --grpc-service-name=podinfo
-        - --level=info
-        - --random-delay=false
-        - --random-error=false
-        env:
-        - name: PODINFO_UI_COLOR
-          value: cyan
-        livenessProbe:
-          exec:
-            command:
-            - podcli
-            - check
-            - http
-            - localhost:9898/healthz
-          initialDelaySeconds: 5
-          timeoutSeconds: 5
-        readinessProbe:
-          exec:
-            command:
-            - podcli
-            - check
-            - http
-            - localhost:9898/readyz
-          initialDelaySeconds: 5
-          timeoutSeconds: 5
-        resources:
-          limits:
-            cpu: 2000m
-            memory: 512Mi
-          requests:
-            cpu: 100m
-            memory: 64Mi

kustomize/hpa.yaml

@@ -1,18 +0,0 @@
-apiVersion: autoscaling/v2beta1
-kind: HorizontalPodAutoscaler
-metadata:
-  name: podinfo
-spec:
-  scaleTargetRef:
-    apiVersion: apps/v1
-    kind: Deployment
-    name: podinfo
-  minReplicas: 2
-  maxReplicas: 4
-  metrics:
-  - type: Resource
-    resource:
-      name: cpu
-      # scale up if usage is above
-      # 99% of the requested CPU (100m)
-      targetAverageUtilization: 99

kustomize/kustomization.yaml

@@ -1,4 +0,0 @@
-resources:
-  - hpa.yaml
-  - deployment.yaml
-  - service.yaml

kustomize/service.yaml

@@ -1,19 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: podinfo
-  labels:
-    app: podinfo
-spec:
-  type: ClusterIP
-  selector:
-    app: podinfo
-  ports:
-    - name: http
-      port: 9898
-      protocol: TCP
-      targetPort: http
-    - port: 9999
-      targetPort: grpc
-      protocol: TCP
-      name: grpc

pkg/api/chunked.go

@@ -1,44 +0,0 @@
-package api
-
-import (
-	"math/rand"
-	"net/http"
-	"strconv"
-	"time"
-
-	"github.com/gorilla/mux"
-)
-
-// Chunked godoc
-// @Summary Chunked transfer encoding
-// @Description uses transfer-encoding type chunked to give a partial response and then waits for the specified period
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /chunked/{seconds} [get]
-// @Success 200 {object} api.MapResponse
-func (s *Server) chunkedHandler(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-
-	delay, err := strconv.Atoi(vars["wait"])
-	if err != nil {
-		delay = rand.Intn(int(s.config.HttpServerTimeout*time.Second)-10) + 10
-	}
-
-	flusher, ok := w.(http.Flusher)
-	if !ok {
-		s.ErrorResponse(w, r, "Streaming unsupported!", http.StatusInternalServerError)
-		return
-	}
-
-	w.Header().Set("Connection", "Keep-Alive")
-	w.Header().Set("Transfer-Encoding", "chunked")
-	w.Header().Set("X-Content-Type-Options", "nosniff")
-
-	flusher.Flush()
-
-	time.Sleep(time.Duration(delay) * time.Second)
-	s.JSONResponse(w, r, map[string]int{"delay": delay})
-
-	flusher.Flush()
-}

pkg/api/chunked_test.go

@@ -1,35 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"regexp"
-	"testing"
-)
-
-func TestChunkedHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/chunked/0", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-
-	srv.router.HandleFunc("/chunked/{wait}", srv.chunkedHandler)
-	srv.router.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusOK {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusOK)
-	}
-
-	// Check the response body is what we expect.
-	expected := ".*delay.*0.*"
-	r := regexp.MustCompile(expected)
-	if !r.MatchString(rr.Body.String()) {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/api/configs.go

@@ -1,15 +0,0 @@
-package api
-
-import "net/http"
-
-func (s *Server) configReadHandler(w http.ResponseWriter, r *http.Request) {
-	files := make(map[string]string)
-	if watcher != nil {
-		watcher.Cache.Range(func(key interface{}, value interface{}) bool {
-			files[key.(string)] = value.(string)
-			return true
-		})
-	}
-
-	s.JSONResponse(w, r, files)
-}

pkg/api/delay.go

@@ -1,31 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"github.com/gorilla/mux"
-	"strconv"
-	"time"
-)
-
-// Delay godoc
-// @Summary Delay
-// @Description waits for the specified period
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /delay/{seconds} [get]
-// @Success 200 {object} api.MapResponse
-func (s *Server) delayHandler(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-
-	delay, err := strconv.Atoi(vars["wait"])
-	if err != nil {
-		s.ErrorResponse(w, r, err.Error(), http.StatusBadRequest)
-		return
-	}
-
-	time.Sleep(time.Duration(delay) * time.Second)
-
-	s.JSONResponse(w, r, map[string]int{"delay": delay})
-}

pkg/api/delay_test.go

@@ -1,35 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"regexp"
-	"testing"
-)
-
-func TestDelayHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/delay/0", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-
-	srv.router.HandleFunc("/delay/{wait}", srv.delayHandler)
-	srv.router.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusOK {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusOK)
-	}
-
-	// Check the response body is what we expect.
-	expected := ".*delay.*0.*"
-	r := regexp.MustCompile(expected)
-	if !r.MatchString(rr.Body.String()) {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/api/docs/docs.go

@@ -1,594 +0,0 @@
-// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
-// This file was generated by swaggo/swag at
-// 2019-08-07 15:52:23.918713 +0300 EEST m=+0.023438272
-
-package docs
-
-import (
-	"bytes"
-	"encoding/json"
-
-	"github.com/alecthomas/template"
-	"github.com/swaggo/swag"
-)
-
-var doc = `{
-    "schemes": {{ marshal .Schemes }},
-    "swagger": "2.0",
-    "info": {
-        "description": "Go microservice template for Kubernetes.",
-        "title": "Podinfo API",
-        "contact": {
-            "name": "Source Code",
-            "url": "https://github.com/stefanprodan/podinfo"
-        },
-        "license": {
-            "name": "MIT License",
-            "url": "https://github.com/stefanprodan/podinfo/blob/master/LICENSE"
-        },
-        "version": "2.0"
-    },
-    "host": "localhost:9898",
-    "basePath": "/",
-    "paths": {
-        "/": {
-            "get": {
-                "description": "renders podinfo UI",
-                "produces": [
-                    "text/html"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Index",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/api/echo": {
-            "post": {
-                "description": "forwards the call to the backend service and echos the posted content",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Echo",
-                "responses": {
-                    "202": {
-                        "description": "Accepted",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/api/info": {
-            "get": {
-                "description": "returns the runtime information",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Runtime information",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.RuntimeResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/chunked/{seconds}": {
-            "get": {
-                "description": "uses transfer-encoding type chunked to give a partial response and then waits for the specified period",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Chunked transfer encoding",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/delay/{seconds}": {
-            "get": {
-                "description": "waits for the specified period",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Delay",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/env": {
-            "get": {
-                "description": "returns the environment variables as a JSON array",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Environment",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.ArrayResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/headers": {
-            "get": {
-                "description": "returns a JSON array with the request HTTP headers",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Headers",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.ArrayResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/healthz": {
-            "get": {
-                "description": "used by Kubernetes liveness probe",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Liveness check",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/metrics": {
-            "get": {
-                "description": "returns HTTP requests duration and Go runtime metrics",
-                "produces": [
-                    "text/plain"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Prometheus metrics",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/panic": {
-            "get": {
-                "description": "crashes the process with exit code 255",
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Panic"
-            }
-        },
-        "/readyz": {
-            "get": {
-                "description": "used by Kubernetes readiness probe",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Readiness check",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/readyz/disable": {
-            "post": {
-                "description": "signals the Kubernetes LB to stop sending requests to this instance",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Disable ready state",
-                "responses": {
-                    "202": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/readyz/enable": {
-            "post": {
-                "description": "signals the Kubernetes LB that this instance is ready to receive traffic",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Enable ready state",
-                "responses": {
-                    "202": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/status/{code}": {
-            "get": {
-                "description": "sets the response status code to the specified code",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Status code",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/store": {
-            "post": {
-                "description": "writes the posted content to disk at /data/hash and returns the SHA1 hash of the content",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Upload file",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/store/{hash}": {
-            "get": {
-                "description": "returns the content of the file /data/hash if exists",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "text/plain"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Download file",
-                "responses": {
-                    "200": {
-                        "description": "file",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/token": {
-            "post": {
-                "description": "issues a JWT token valid for one minute",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Generate JWT token",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.TokenResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/token/validate": {
-            "post": {
-                "description": "validates the JWT token",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Validate JWT token",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.TokenValidationResponse"
-                        }
-                    },
-                    "401": {
-                        "description": "Unauthorized",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/version": {
-            "get": {
-                "description": "returns podinfo version and git commit hash",
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Version",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/ws/echo": {
-            "post": {
-                "description": "echos content via websockets",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Echo over websockets",
-                "responses": {
-                    "202": {
-                        "description": "Accepted",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        }
-    },
-    "definitions": {
-        "api.ArrayResponse": {
-            "type": "array",
-            "items": {}
-        },
-        "api.MapResponse": {
-            "type": "object",
-            "additionalProperties": {}
-        },
-        "api.RuntimeResponse": {
-            "type": "object",
-            "properties": {
-                "color": {
-                    "type": "string"
-                },
-                "goarch": {
-                    "type": "string"
-                },
-                "goos": {
-                    "type": "string"
-                },
-                "hostname": {
-                    "type": "string"
-                },
-                "message": {
-                    "type": "string"
-                },
-                "num_cpu": {
-                    "type": "string"
-                },
-                "num_goroutine": {
-                    "type": "string"
-                },
-                "revision": {
-                    "type": "string"
-                },
-                "runtime": {
-                    "type": "string"
-                },
-                "version": {
-                    "type": "string"
-                }
-            }
-        },
-        "api.TokenResponse": {
-            "type": "object",
-            "properties": {
-                "expires_at": {
-                    "type": "string"
-                },
-                "token": {
-                    "type": "string"
-                }
-            }
-        },
-        "api.TokenValidationResponse": {
-            "type": "object",
-            "properties": {
-                "expires_at": {
-                    "type": "string"
-                },
-                "token_name": {
-                    "type": "string"
-                }
-            }
-        }
-    }
-}`
-
-type swaggerInfo struct {
-	Version     string
-	Host        string
-	BasePath    string
-	Schemes     []string
-	Title       string
-	Description string
-}
-
-// SwaggerInfo holds exported Swagger Info so clients can modify it
-var SwaggerInfo = swaggerInfo{Schemes: []string{"http", "https"}}
-
-type s struct{}
-
-func (s *s) ReadDoc() string {
-	t, err := template.New("swagger_info").Funcs(template.FuncMap{
-		"marshal": func(v interface{}) string {
-			a, _ := json.Marshal(v)
-			return string(a)
-		},
-	}).Parse(doc)
-	if err != nil {
-		return doc
-	}
-
-	var tpl bytes.Buffer
-	if err := t.Execute(&tpl, SwaggerInfo); err != nil {
-		return doc
-	}
-
-	return tpl.String()
-}
-
-func init() {
-	swag.Register(swag.Name, &s{})
-}

pkg/api/docs/swagger.json

@@ -1,542 +0,0 @@
-{
-    "swagger": "2.0",
-    "info": {
-        "description": "Go microservice template for Kubernetes.",
-        "title": "Podinfo API",
-        "contact": {
-            "name": "Source Code",
-            "url": "https://github.com/stefanprodan/podinfo"
-        },
-        "license": {
-            "name": "MIT License",
-            "url": "https://github.com/stefanprodan/podinfo/blob/master/LICENSE"
-        },
-        "version": "2.0"
-    },
-    "host": "localhost:9898",
-    "basePath": "/",
-    "paths": {
-        "/": {
-            "get": {
-                "description": "renders podinfo UI",
-                "produces": [
-                    "text/html"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Index",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/api/echo": {
-            "post": {
-                "description": "forwards the call to the backend service and echos the posted content",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Echo",
-                "responses": {
-                    "202": {
-                        "description": "Accepted",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/api/info": {
-            "get": {
-                "description": "returns the runtime information",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Runtime information",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.RuntimeResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/chunked/{seconds}": {
-            "get": {
-                "description": "uses transfer-encoding type chunked to give a partial response and then waits for the specified period",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Chunked transfer encoding",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/delay/{seconds}": {
-            "get": {
-                "description": "waits for the specified period",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Delay",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/env": {
-            "get": {
-                "description": "returns the environment variables as a JSON array",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Environment",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.ArrayResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/headers": {
-            "get": {
-                "description": "returns a JSON array with the request HTTP headers",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Headers",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.ArrayResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/healthz": {
-            "get": {
-                "description": "used by Kubernetes liveness probe",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Liveness check",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/metrics": {
-            "get": {
-                "description": "returns HTTP requests duration and Go runtime metrics",
-                "produces": [
-                    "text/plain"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Prometheus metrics",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/panic": {
-            "get": {
-                "description": "crashes the process with exit code 255",
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Panic"
-            }
-        },
-        "/readyz": {
-            "get": {
-                "description": "used by Kubernetes readiness probe",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Readiness check",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/readyz/disable": {
-            "post": {
-                "description": "signals the Kubernetes LB to stop sending requests to this instance",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Disable ready state",
-                "responses": {
-                    "202": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/readyz/enable": {
-            "post": {
-                "description": "signals the Kubernetes LB that this instance is ready to receive traffic",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "Kubernetes"
-                ],
-                "summary": "Enable ready state",
-                "responses": {
-                    "202": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/status/{code}": {
-            "get": {
-                "description": "sets the response status code to the specified code",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Status code",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/store": {
-            "post": {
-                "description": "writes the posted content to disk at /data/hash and returns the SHA1 hash of the content",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Upload file",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/store/{hash}": {
-            "get": {
-                "description": "returns the content of the file /data/hash if exists",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "text/plain"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Download file",
-                "responses": {
-                    "200": {
-                        "description": "file",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/token": {
-            "post": {
-                "description": "issues a JWT token valid for one minute",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Generate JWT token",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.TokenResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/token/validate": {
-            "post": {
-                "description": "validates the JWT token",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Validate JWT token",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.TokenValidationResponse"
-                        }
-                    },
-                    "401": {
-                        "description": "Unauthorized",
-                        "schema": {
-                            "type": "string"
-                        }
-                    }
-                }
-            }
-        },
-        "/version": {
-            "get": {
-                "description": "returns podinfo version and git commit hash",
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Version",
-                "responses": {
-                    "200": {
-                        "description": "OK",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        },
-        "/ws/echo": {
-            "post": {
-                "description": "echos content via websockets",
-                "consumes": [
-                    "application/json"
-                ],
-                "produces": [
-                    "application/json"
-                ],
-                "tags": [
-                    "HTTP API"
-                ],
-                "summary": "Echo over websockets",
-                "responses": {
-                    "202": {
-                        "description": "Accepted",
-                        "schema": {
-                            "type": "object",
-                            "$ref": "#/definitions/api.MapResponse"
-                        }
-                    }
-                }
-            }
-        }
-    },
-    "definitions": {
-        "api.ArrayResponse": {
-            "type": "array",
-            "items": {}
-        },
-        "api.MapResponse": {
-            "type": "object",
-            "additionalProperties": {}
-        },
-        "api.RuntimeResponse": {
-            "type": "object",
-            "properties": {
-                "color": {
-                    "type": "string"
-                },
-                "goarch": {
-                    "type": "string"
-                },
-                "goos": {
-                    "type": "string"
-                },
-                "hostname": {
-                    "type": "string"
-                },
-                "message": {
-                    "type": "string"
-                },
-                "num_cpu": {
-                    "type": "string"
-                },
-                "num_goroutine": {
-                    "type": "string"
-                },
-                "revision": {
-                    "type": "string"
-                },
-                "runtime": {
-                    "type": "string"
-                },
-                "version": {
-                    "type": "string"
-                }
-            }
-        },
-        "api.TokenResponse": {
-            "type": "object",
-            "properties": {
-                "expires_at": {
-                    "type": "string"
-                },
-                "token": {
-                    "type": "string"
-                }
-            }
-        },
-        "api.TokenValidationResponse": {
-            "type": "object",
-            "properties": {
-                "expires_at": {
-                    "type": "string"
-                },
-                "token_name": {
-                    "type": "string"
-                }
-            }
-        }
-    }
-}

pkg/api/docs/swagger.yaml

@@ -1,362 +0,0 @@
-basePath: /
-definitions:
-  api.ArrayResponse:
-    items: {}
-    type: array
-  api.MapResponse:
-    additionalProperties: {}
-    type: object
-  api.RuntimeResponse:
-    properties:
-      color:
-        type: string
-      goarch:
-        type: string
-      goos:
-        type: string
-      hostname:
-        type: string
-      message:
-        type: string
-      num_cpu:
-        type: string
-      num_goroutine:
-        type: string
-      revision:
-        type: string
-      runtime:
-        type: string
-      version:
-        type: string
-    type: object
-  api.TokenResponse:
-    properties:
-      expires_at:
-        type: string
-      token:
-        type: string
-    type: object
-  api.TokenValidationResponse:
-    properties:
-      expires_at:
-        type: string
-      token_name:
-        type: string
-    type: object
-host: localhost:9898
-info:
-  contact:
-    name: Source Code
-    url: https://github.com/stefanprodan/podinfo
-  description: Go microservice template for Kubernetes.
-  license:
-    name: MIT License
-    url: https://github.com/stefanprodan/podinfo/blob/master/LICENSE
-  title: Podinfo API
-  version: "2.0"
-paths:
-  /:
-    get:
-      description: renders podinfo UI
-      produces:
-      - text/html
-      responses:
-        "200":
-          description: OK
-          schema:
-            type: string
-      summary: Index
-      tags:
-      - HTTP API
-  /api/echo:
-    post:
-      consumes:
-      - application/json
-      description: forwards the call to the backend service and echos the posted content
-      produces:
-      - application/json
-      responses:
-        "202":
-          description: Accepted
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Echo
-      tags:
-      - HTTP API
-  /api/info:
-    get:
-      consumes:
-      - application/json
-      description: returns the runtime information
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.RuntimeResponse'
-            type: object
-      summary: Runtime information
-      tags:
-      - HTTP API
-  /chunked/{seconds}:
-    get:
-      consumes:
-      - application/json
-      description: uses transfer-encoding type chunked to give a partial response
-        and then waits for the specified period
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Chunked transfer encoding
-      tags:
-      - HTTP API
-  /delay/{seconds}:
-    get:
-      consumes:
-      - application/json
-      description: waits for the specified period
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Delay
-      tags:
-      - HTTP API
-  /env:
-    get:
-      consumes:
-      - application/json
-      description: returns the environment variables as a JSON array
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.ArrayResponse'
-            type: object
-      summary: Environment
-      tags:
-      - HTTP API
-  /headers:
-    get:
-      consumes:
-      - application/json
-      description: returns a JSON array with the request HTTP headers
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.ArrayResponse'
-            type: object
-      summary: Headers
-      tags:
-      - HTTP API
-  /healthz:
-    get:
-      consumes:
-      - application/json
-      description: used by Kubernetes liveness probe
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            type: string
-      summary: Liveness check
-      tags:
-      - Kubernetes
-  /metrics:
-    get:
-      description: returns HTTP requests duration and Go runtime metrics
-      produces:
-      - text/plain
-      responses:
-        "200":
-          description: OK
-          schema:
-            type: string
-      summary: Prometheus metrics
-      tags:
-      - Kubernetes
-  /panic:
-    get:
-      description: crashes the process with exit code 255
-      summary: Panic
-      tags:
-      - HTTP API
-  /readyz:
-    get:
-      consumes:
-      - application/json
-      description: used by Kubernetes readiness probe
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            type: string
-      summary: Readiness check
-      tags:
-      - Kubernetes
-  /readyz/disable:
-    post:
-      consumes:
-      - application/json
-      description: signals the Kubernetes LB to stop sending requests to this instance
-      produces:
-      - application/json
-      responses:
-        "202":
-          description: OK
-          schema:
-            type: string
-      summary: Disable ready state
-      tags:
-      - Kubernetes
-  /readyz/enable:
-    post:
-      consumes:
-      - application/json
-      description: signals the Kubernetes LB that this instance is ready to receive
-        traffic
-      produces:
-      - application/json
-      responses:
-        "202":
-          description: OK
-          schema:
-            type: string
-      summary: Enable ready state
-      tags:
-      - Kubernetes
-  /status/{code}:
-    get:
-      consumes:
-      - application/json
-      description: sets the response status code to the specified code
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Status code
-      tags:
-      - HTTP API
-  /store:
-    post:
-      consumes:
-      - application/json
-      description: writes the posted content to disk at /data/hash and returns the
-        SHA1 hash of the content
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Upload file
-      tags:
-      - HTTP API
-  /store/{hash}:
-    get:
-      consumes:
-      - application/json
-      description: returns the content of the file /data/hash if exists
-      produces:
-      - text/plain
-      responses:
-        "200":
-          description: file
-          schema:
-            type: string
-      summary: Download file
-      tags:
-      - HTTP API
-  /token:
-    post:
-      consumes:
-      - application/json
-      description: issues a JWT token valid for one minute
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.TokenResponse'
-            type: object
-      summary: Generate JWT token
-      tags:
-      - HTTP API
-  /token/validate:
-    post:
-      consumes:
-      - application/json
-      description: validates the JWT token
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.TokenValidationResponse'
-            type: object
-        "401":
-          description: Unauthorized
-          schema:
-            type: string
-      summary: Validate JWT token
-      tags:
-      - HTTP API
-  /version:
-    get:
-      description: returns podinfo version and git commit hash
-      produces:
-      - application/json
-      responses:
-        "200":
-          description: OK
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Version
-      tags:
-      - HTTP API
-  /ws/echo:
-    post:
-      consumes:
-      - application/json
-      description: echos content via websockets
-      produces:
-      - application/json
-      responses:
-        "202":
-          description: Accepted
-          schema:
-            $ref: '#/definitions/api.MapResponse'
-            type: object
-      summary: Echo over websockets
-      tags:
-      - HTTP API
-swagger: "2.0"

pkg/api/echo.go

@@ -1,98 +0,0 @@
-package api
-
-import (
-	"bytes"
-	"context"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"sync"
-
-	"github.com/stefanprodan/podinfo/pkg/version"
-	"go.uber.org/zap"
-)
-
-// Echo godoc
-// @Summary Echo
-// @Description forwards the call to the backend service and echos the posted content
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /api/echo [post]
-// @Success 202 {object} api.MapResponse
-func (s *Server) echoHandler(w http.ResponseWriter, r *http.Request) {
-	body, err := ioutil.ReadAll(r.Body)
-	if err != nil {
-		s.logger.Error("reading the request body failed", zap.Error(err))
-		s.ErrorResponse(w, r, "invalid request body", http.StatusBadRequest)
-		return
-	}
-	defer r.Body.Close()
-	if len(s.config.BackendURL) > 0 {
-		result := make([]string, len(s.config.BackendURL))
-		var wg sync.WaitGroup
-		wg.Add(len(s.config.BackendURL))
-		for i, b := range s.config.BackendURL {
-			go func(index int, backend string) {
-				defer wg.Done()
-				backendReq, err := http.NewRequest("POST", backend, bytes.NewReader(body))
-				if err != nil {
-					s.logger.Error("backend call failed", zap.Error(err), zap.String("url", backend))
-					return
-				}
-
-				// forward headers
-				copyTracingHeaders(r, backendReq)
-
-				backendReq.Header.Set("X-API-Version", version.VERSION)
-				backendReq.Header.Set("X-API-Revision", version.REVISION)
-
-				ctx, cancel := context.WithTimeout(backendReq.Context(), s.config.HttpClientTimeout)
-				defer cancel()
-
-				// call backend
-				resp, err := http.DefaultClient.Do(backendReq.WithContext(ctx))
-				if err != nil {
-					s.logger.Error("backend call failed", zap.Error(err), zap.String("url", backend))
-					result[index] = fmt.Sprintf("backend %v call failed %v", backend, err)
-					return
-				}
-				defer resp.Body.Close()
-
-				// copy error status from backend and exit
-				if resp.StatusCode >= 400 {
-					s.logger.Error("backend call failed", zap.Int("status", resp.StatusCode), zap.String("url", backend))
-					result[index] = fmt.Sprintf("backend %v response status code %v", backend, resp.StatusCode)
-					return
-				}
-
-				// forward the received body
-				rbody, err := ioutil.ReadAll(resp.Body)
-				if err != nil {
-					s.logger.Error(
-						"reading the backend request body failed",
-						zap.Error(err),
-						zap.String("url", backend))
-					result[index] = fmt.Sprintf("backend %v call failed %v", backend, err)
-					return
-				}
-
-				s.logger.Debug(
-					"payload received from backend",
-					zap.String("response", string(rbody)),
-					zap.String("url", backend))
-
-				result[index] = string(rbody)
-			}(i, b)
-		}
-		wg.Wait()
-
-		w.Header().Set("X-Color", s.config.UIColor)
-		s.JSONResponse(w, r, result)
-
-	} else {
-		w.Header().Set("X-Color", s.config.UIColor)
-		w.WriteHeader(http.StatusAccepted)
-		w.Write(body)
-	}
-}

pkg/api/echo_test.go

@@ -1,34 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"strings"
-	"testing"
-)
-
-func TestEchoHandler(t *testing.T) {
-	expected := `{"test": true}`
-	req, err := http.NewRequest("POST", "/api/echo", strings.NewReader(expected))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.echoHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusAccepted {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusAccepted)
-	}
-
-	// Check the response body is what we expect.
-	if rr.Body.String() != expected {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/api/echows.go

@@ -1,90 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"strings"
-	"time"
-
-	"github.com/gorilla/websocket"
-	"go.uber.org/zap"
-)
-
-var wsCon = websocket.Upgrader{}
-
-// EchoWS godoc
-// @Summary Echo over websockets
-// @Description echos content via websockets
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /ws/echo [post]
-// @Success 202 {object} api.MapResponse
-// Test: go run ./cmd/podcli/* ws localhost:9898/ws/echo
-func (s *Server) echoWsHandler(w http.ResponseWriter, r *http.Request) {
-	c, err := wsCon.Upgrade(w, r, nil)
-	if err != nil {
-		if err != nil {
-			s.logger.Warn("websocket upgrade error", zap.Error(err))
-			return
-		}
-	}
-	defer c.Close()
-	done := make(chan struct{})
-	defer close(done)
-	in := make(chan interface{})
-	defer close(in)
-	go s.writeWs(c, in)
-	go s.sendHostWs(c, in, done)
-	for {
-		_, message, err := c.ReadMessage()
-		if err != nil {
-			if !strings.Contains(err.Error(), "close") {
-				s.logger.Warn("websocket read error", zap.Error(err))
-			}
-			break
-		}
-		var response = struct {
-			Time    time.Time `json:"ts"`
-			Message string    `json:"msg"`
-		}{
-			Time:    time.Now(),
-			Message: string(message),
-		}
-		in <- response
-	}
-}
-
-func (s *Server) sendHostWs(ws *websocket.Conn, in chan interface{}, done chan struct{}) {
-	ticker := time.NewTicker(5 * time.Second)
-	defer ticker.Stop()
-	for {
-		select {
-		case <-ticker.C:
-			var status = struct {
-				Time time.Time `json:"ts"`
-				Host string    `json:"server"`
-			}{
-				Time: time.Now(),
-				Host: s.config.Hostname,
-			}
-			in <- status
-		case <-done:
-			s.logger.Debug("websocket exit")
-			return
-		}
-	}
-}
-
-func (s *Server) writeWs(ws *websocket.Conn, in chan interface{}) {
-	for {
-		select {
-		case msg := <-in:
-			if err := ws.WriteJSON(msg); err != nil {
-				if !strings.Contains(err.Error(), "close") {
-					s.logger.Warn("websocket write error", zap.Error(err))
-				}
-				return
-			}
-		}
-	}
-}

pkg/api/env.go

@@ -1,19 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"os"
-)
-
-// Env godoc
-// @Summary Environment
-// @Description returns the environment variables as a JSON array
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /env [get]
-// @Success 200 {object} api.ArrayResponse
-func (s *Server) envHandler(w http.ResponseWriter, r *http.Request) {
-	s.JSONResponse(w, r, os.Environ())
-}

pkg/api/env_test.go

@@ -1,35 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"regexp"
-	"testing"
-)
-
-func TestEnvHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/api/env", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.infoHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusOK {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusOK)
-	}
-
-	// Check the response body is what we expect.
-	expected := ".*hostname.*"
-	r := regexp.MustCompile(expected)
-	if !r.MatchString(rr.Body.String()) {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/api/headers.go

@@ -1,17 +0,0 @@
-package api
-
-import (
-	"net/http"
-)
-
-// Headers godoc
-// @Summary Headers
-// @Description returns a JSON array with the request HTTP headers
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /headers [get]
-// @Success 200 {object} api.ArrayResponse
-func (s *Server) echoHeadersHandler(w http.ResponseWriter, r *http.Request) {
-	s.JSONResponse(w, r, r.Header)
-}

pkg/api/headers_test.go

@@ -1,36 +0,0 @@
-package api
-
-import (
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"regexp"
-	"testing"
-)
-
-func TestEchoHeadersHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/api/headers", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	req.Header.Set("X-Test", "testing")
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.echoHeadersHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusOK {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusOK)
-	}
-
-	// Check the response body is what we expect.
-	expected := "testing"
-	r := regexp.MustCompile(fmt.Sprintf("(?m:%s)", expected))
-	if !r.MatchString(rr.Body.String()) {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/api/health.go

@@ -1,64 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"sync/atomic"
-)
-
-// Healthz godoc
-// @Summary Liveness check
-// @Description used by Kubernetes liveness probe
-// @Tags Kubernetes
-// @Accept json
-// @Produce json
-// @Router /healthz [get]
-// @Success 200 {string} string "OK"
-func (s *Server) healthzHandler(w http.ResponseWriter, r *http.Request) {
-	if atomic.LoadInt32(&healthy) == 1 {
-		s.JSONResponse(w, r, map[string]string{"status": "OK"})
-		return
-	}
-	w.WriteHeader(http.StatusServiceUnavailable)
-}
-
-// Readyz godoc
-// @Summary Readiness check
-// @Description used by Kubernetes readiness probe
-// @Tags Kubernetes
-// @Accept json
-// @Produce json
-// @Router /readyz [get]
-// @Success 200 {string} string "OK"
-func (s *Server) readyzHandler(w http.ResponseWriter, r *http.Request) {
-	if atomic.LoadInt32(&ready) == 1 {
-		s.JSONResponse(w, r, map[string]string{"status": "OK"})
-		return
-	}
-	w.WriteHeader(http.StatusServiceUnavailable)
-}
-
-// EnableReady godoc
-// @Summary Enable ready state
-// @Description signals the Kubernetes LB that this instance is ready to receive traffic
-// @Tags Kubernetes
-// @Accept json
-// @Produce json
-// @Router /readyz/enable [post]
-// @Success 202 {string} string "OK"
-func (s *Server) enableReadyHandler(w http.ResponseWriter, r *http.Request) {
-	atomic.StoreInt32(&ready, 1)
-	w.WriteHeader(http.StatusAccepted)
-}
-
-// DisableReady godoc
-// @Summary Disable ready state
-// @Description signals the Kubernetes LB to stop sending requests to this instance
-// @Tags Kubernetes
-// @Accept json
-// @Produce json
-// @Router /readyz/disable [post]
-// @Success 202 {string} string "OK"
-func (s *Server) disableReadyHandler(w http.ResponseWriter, r *http.Request) {
-	atomic.StoreInt32(&ready, 0)
-	w.WriteHeader(http.StatusAccepted)
-}

pkg/api/health_test.go

@@ -1,45 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-)
-
-func TestHealthzHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/healthz", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.healthzHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusServiceUnavailable {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusServiceUnavailable)
-	}
-}
-
-func TestReadyzHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/readyz", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.readyzHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusServiceUnavailable {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusServiceUnavailable)
-	}
-}

pkg/api/http.go

@@ -1,122 +0,0 @@
-package api
-
-import (
-	"bytes"
-	"encoding/json"
-	"math/rand"
-	"net/http"
-	"time"
-
-	"github.com/stefanprodan/podinfo/pkg/version"
-	"go.uber.org/zap"
-)
-
-func randomDelayMiddleware(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		min := 0
-		max := 5
-		rand.Seed(time.Now().Unix())
-		delay := rand.Intn(max-min) + min
-		time.Sleep(time.Duration(delay) * time.Second)
-		next.ServeHTTP(w, r)
-	})
-}
-
-func randomErrorMiddleware(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		rand.Seed(time.Now().Unix())
-		if rand.Int31n(3) == 0 {
-
-			errors := []int{http.StatusInternalServerError, http.StatusBadRequest, http.StatusConflict}
-			w.WriteHeader(errors[rand.Intn(len(errors))])
-			return
-		}
-		next.ServeHTTP(w, r)
-	})
-}
-
-func versionMiddleware(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		r.Header.Set("X-API-Version", version.VERSION)
-		r.Header.Set("X-API-Revision", version.REVISION)
-
-		next.ServeHTTP(w, r)
-	})
-}
-
-// TODO: use Istio tracing package
-// https://github.com/istio/istio/blob/master/pkg/tracing/config.go
-func copyTracingHeaders(from *http.Request, to *http.Request) {
-	headers := []string{
-		"x-request-id",
-		"x-b3-traceid",
-		"x-b3-spanid",
-		"x-b3-parentspanid",
-		"x-b3-sampled",
-		"x-b3-flags",
-		"x-ot-span-context",
-	}
-
-	for i := range headers {
-		headerValue := from.Header.Get(headers[i])
-		if len(headerValue) > 0 {
-			to.Header.Set(headers[i], headerValue)
-		}
-	}
-}
-
-func (s *Server) JSONResponse(w http.ResponseWriter, r *http.Request, result interface{}) {
-	body, err := json.Marshal(result)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		s.logger.Error("JSON marshal failed", zap.Error(err))
-		return
-	}
-
-	w.Header().Set("Content-Type", "application/json; charset=utf-8")
-	w.Header().Set("X-Content-Type-Options", "nosniff")
-	w.WriteHeader(http.StatusOK)
-	w.Write(prettyJSON(body))
-}
-
-func (s *Server) JSONResponseCode(w http.ResponseWriter, r *http.Request, result interface{}, responseCode int) {
-	body, err := json.Marshal(result)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		s.logger.Error("JSON marshal failed", zap.Error(err))
-		return
-	}
-
-	w.Header().Set("Content-Type", "application/json; charset=utf-8")
-	w.Header().Set("X-Content-Type-Options", "nosniff")
-	w.WriteHeader(responseCode)
-	w.Write(prettyJSON(body))
-}
-
-func (s *Server) ErrorResponse(w http.ResponseWriter, r *http.Request, error string, code int) {
-	data := struct {
-		Code    int    `json:"code"`
-		Message string `json:"message"`
-	}{
-		Code:    code,
-		Message: error,
-	}
-
-	body, err := json.Marshal(data)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		s.logger.Error("JSON marshal failed", zap.Error(err))
-		return
-	}
-
-	w.Header().Set("Content-Type", "application/json; charset=utf-8")
-	w.Header().Set("X-Content-Type-Options", "nosniff")
-	w.WriteHeader(http.StatusOK)
-	w.Write(prettyJSON(body))
-}
-
-func prettyJSON(b []byte) []byte {
-	var out bytes.Buffer
-	json.Indent(&out, b, "", "  ")
-	return out.Bytes()
-}

pkg/api/index.go

@@ -1,35 +0,0 @@
-package api
-
-import (
-	"html/template"
-	"net/http"
-	"path"
-)
-
-// Index godoc
-// @Summary Index
-// @Description renders podinfo UI
-// @Tags HTTP API
-// @Produce html
-// @Router / [get]
-// @Success 200 {string} string "OK"
-func (s *Server) indexHandler(w http.ResponseWriter, r *http.Request) {
-	tmpl, err := template.New("vue.html").ParseFiles(path.Join(s.config.UIPath, "vue.html"))
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		w.Write([]byte(path.Join(s.config.UIPath, "vue.html") + err.Error()))
-		return
-	}
-
-	data := struct {
-		Title string
-		Logo  string
-	}{
-		Title: s.config.Hostname,
-		Logo:  s.config.UILogo,
-	}
-
-	if err := tmpl.Execute(w, data); err != nil {
-		http.Error(w, path.Join(s.config.UIPath, "vue.html")+err.Error(), http.StatusInternalServerError)
-	}
-}

pkg/api/info.go

@@ -1,50 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"runtime"
-	"strconv"
-
-	"github.com/stefanprodan/podinfo/pkg/version"
-)
-
-// Info godoc
-// @Summary Runtime information
-// @Description returns the runtime information
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Success 200 {object} api.RuntimeResponse
-// @Router /api/info [get]
-func (s *Server) infoHandler(w http.ResponseWriter, r *http.Request) {
-	data := RuntimeResponse{
-		Hostname:     s.config.Hostname,
-		Version:      version.VERSION,
-		Revision:     version.REVISION,
-		Logo:         s.config.UILogo,
-		Color:        s.config.UIColor,
-		Message:      s.config.UIMessage,
-		GOOS:         runtime.GOOS,
-		GOARCH:       runtime.GOARCH,
-		Runtime:      runtime.Version(),
-		NumGoroutine: strconv.FormatInt(int64(runtime.NumGoroutine()), 10),
-		NumCPU:       strconv.FormatInt(int64(runtime.NumCPU()), 10),
-	}
-
-	s.JSONResponse(w, r, data)
-}
-
-type RuntimeResponse struct {
-	Hostname     string `json:"hostname"`
-	Version      string `json:"version"`
-	Revision     string `json:"revision"`
-	Color        string `json:"color"`
-	Logo         string `json:"logo"`
-	Message      string `json:"message"`
-	GOOS         string `json:"goos"`
-	GOARCH       string `json:"goarch"`
-	Runtime      string `json:"runtime"`
-	NumGoroutine string `json:"num_goroutine"`
-	NumCPU       string `json:"num_cpu"`
-}

pkg/api/info_test.go

@@ -1,35 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"regexp"
-	"testing"
-)
-
-func TestInfoHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/api/info", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.infoHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusOK {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusOK)
-	}
-
-	// Check the response body is what we expect.
-	expected := ".*color.*blue.*"
-	r := regexp.MustCompile(expected)
-	if !r.MatchString(rr.Body.String()) {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/api/logging.go

@@ -1,31 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"go.uber.org/zap"
-)
-
-type LoggingMiddleware struct {
-	logger *zap.Logger
-}
-
-func NewLoggingMiddleware(logger *zap.Logger) *LoggingMiddleware {
-	return &LoggingMiddleware{
-		logger: logger,
-	}
-}
-
-func (m *LoggingMiddleware) Handler(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		m.logger.Debug(
-			"request started",
-			zap.String("proto", r.Proto),
-			zap.String("uri", r.RequestURI),
-			zap.String("method", r.Method),
-			zap.String("remote", r.RemoteAddr),
-			zap.String("user-agent", r.UserAgent()),
-		)
-		next.ServeHTTP(w, r)
-	})
-}

pkg/api/metrics.go

@@ -1,379 +0,0 @@
-package api
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"regexp"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/gorilla/mux"
-	"github.com/prometheus/client_golang/prometheus"
-)
-
-type PrometheusMiddleware struct {
-	Histogram *prometheus.HistogramVec
-	Counter   *prometheus.CounterVec
-}
-
-func NewPrometheusMiddleware() *PrometheusMiddleware {
-	// used for monitoring and alerting (RED method)
-	histogram := prometheus.NewHistogramVec(prometheus.HistogramOpts{
-		Subsystem: "http",
-		Name:      "request_duration_seconds",
-		Help:      "Seconds spent serving HTTP requests.",
-		Buckets:   prometheus.DefBuckets,
-	}, []string{"method", "path", "status"})
-	// used for horizontal pod auto-scaling (Kubernetes HPA v2)
-	counter := prometheus.NewCounterVec(
-		prometheus.CounterOpts{
-			Subsystem: "http",
-			Name:      "requests_total",
-			Help:      "The total number of HTTP requests.",
-		},
-		[]string{"status"},
-	)
-
-	prometheus.MustRegister(histogram)
-	prometheus.MustRegister(counter)
-
-	return &PrometheusMiddleware{
-		Histogram: histogram,
-		Counter:   counter,
-	}
-}
-
-// Metrics godoc
-// @Summary Prometheus metrics
-// @Description returns HTTP requests duration and Go runtime metrics
-// @Tags Kubernetes
-// @Produce plain
-// @Router /metrics [get]
-// @Success 200 {string} string "OK"
-func (p *PrometheusMiddleware) Handler(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		begin := time.Now()
-		interceptor := &interceptor{ResponseWriter: w, statusCode: http.StatusOK}
-		path := p.getRouteName(r)
-		next.ServeHTTP(interceptor.wrappedResponseWriter(), r)
-		var (
-			status = strconv.Itoa(interceptor.statusCode)
-			took   = time.Since(begin)
-		)
-		p.Histogram.WithLabelValues(r.Method, path, status).Observe(took.Seconds())
-		p.Counter.WithLabelValues(status).Inc()
-	})
-}
-
-// converts gorilla mux routes from '/api/delay/{wait}' to 'api_delay_wait'
-func (p *PrometheusMiddleware) getRouteName(r *http.Request) string {
-	if mux.CurrentRoute(r) != nil {
-		if name := mux.CurrentRoute(r).GetName(); len(name) > 0 {
-			return urlToLabel(name)
-		}
-		if path, err := mux.CurrentRoute(r).GetPathTemplate(); err == nil {
-			if len(path) > 0 {
-				return urlToLabel(path)
-			}
-		}
-	}
-	return urlToLabel(r.RequestURI)
-}
-
-var invalidChars = regexp.MustCompile(`[^a-zA-Z0-9]+`)
-
-// converts a URL path to a string compatible with Prometheus label value.
-func urlToLabel(path string) string {
-	result := invalidChars.ReplaceAllString(path, "_")
-	result = strings.ToLower(strings.Trim(result, "_"))
-	if result == "" {
-		result = "root"
-	}
-	return result
-}
-
-type interceptor struct {
-	http.ResponseWriter
-	statusCode int
-	recorded   bool
-}
-
-func (i *interceptor) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	hj, ok := i.ResponseWriter.(http.Hijacker)
-	if !ok {
-		return nil, nil, fmt.Errorf("interceptor: can't cast parent ResponseWriter to Hijacker")
-	}
-	return hj.Hijack()
-}
-
-func (i *interceptor) WriteHeader(code int) {
-	if !i.recorded {
-		i.statusCode = code
-		i.recorded = true
-	}
-	i.ResponseWriter.WriteHeader(code)
-}
-
-// Returns a wrapped http.ResponseWriter that implements the same optional interfaces
-// that the underlying ResponseWriter has.
-// Handle every possible combination so that code that checks for the existence of each
-// optional interface functions properly.
-// Based on https://github.com/felixge/httpsnoop/blob/eadd4fad6aac69ae62379194fe0219f3dbc80fd3/wrap_generated_gteq_1.8.go#L66
-func (i *interceptor) wrappedResponseWriter() http.ResponseWriter {
-	closeNotifier, isCloseNotifier := i.ResponseWriter.(http.CloseNotifier)
-	flush, isFlusher := i.ResponseWriter.(http.Flusher)
-	hijack, isHijacker := i.ResponseWriter.(http.Hijacker)
-	push, isPusher := i.ResponseWriter.(http.Pusher)
-	readFrom, isReaderFrom := i.ResponseWriter.(io.ReaderFrom)
-
-	switch {
-	case !isCloseNotifier && !isFlusher && !isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-		}{i}
-
-	case isCloseNotifier && !isFlusher && !isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-		}{i, closeNotifier}
-
-	case !isCloseNotifier && isFlusher && !isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-		}{i, flush}
-
-	case !isCloseNotifier && !isFlusher && isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Hijacker
-		}{i, hijack}
-
-	case !isCloseNotifier && !isFlusher && !isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Pusher
-		}{i, push}
-
-	case !isCloseNotifier && !isFlusher && !isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			io.ReaderFrom
-		}{i, readFrom}
-
-	case isCloseNotifier && isFlusher && !isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-		}{i, closeNotifier, flush}
-
-	case isCloseNotifier && !isFlusher && isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Hijacker
-		}{i, closeNotifier, hijack}
-
-	case isCloseNotifier && !isFlusher && !isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Pusher
-		}{i, closeNotifier, push}
-
-	case isCloseNotifier && !isFlusher && !isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			io.ReaderFrom
-		}{i, closeNotifier, readFrom}
-
-	case !isCloseNotifier && isFlusher && isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			http.Hijacker
-		}{i, flush, hijack}
-
-	case !isCloseNotifier && isFlusher && !isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			http.Pusher
-		}{i, flush, push}
-
-	case !isCloseNotifier && isFlusher && !isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			io.ReaderFrom
-		}{i, flush, readFrom}
-
-	case !isCloseNotifier && !isFlusher && isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Hijacker
-			http.Pusher
-		}{i, hijack, push}
-
-	case !isCloseNotifier && !isFlusher && isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Hijacker
-			io.ReaderFrom
-		}{i, hijack, readFrom}
-
-	case !isCloseNotifier && !isFlusher && !isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Pusher
-			io.ReaderFrom
-		}{i, push, readFrom}
-
-	case isCloseNotifier && isFlusher && isHijacker && !isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			http.Hijacker
-		}{i, closeNotifier, flush, hijack}
-
-	case isCloseNotifier && isFlusher && !isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			http.Pusher
-		}{i, closeNotifier, flush, push}
-
-	case isCloseNotifier && isFlusher && !isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			io.ReaderFrom
-		}{i, closeNotifier, flush, readFrom}
-
-	case isCloseNotifier && !isFlusher && isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Hijacker
-			http.Pusher
-		}{i, closeNotifier, hijack, push}
-
-	case isCloseNotifier && !isFlusher && isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Hijacker
-			io.ReaderFrom
-		}{i, closeNotifier, hijack, readFrom}
-
-	case isCloseNotifier && !isFlusher && !isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Pusher
-			io.ReaderFrom
-		}{i, closeNotifier, push, readFrom}
-
-	case !isCloseNotifier && isFlusher && isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			http.Hijacker
-			http.Pusher
-		}{i, flush, hijack, push}
-
-	case !isCloseNotifier && isFlusher && isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			http.Hijacker
-			io.ReaderFrom
-		}{i, flush, hijack, readFrom}
-
-	case !isCloseNotifier && isFlusher && !isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			http.Pusher
-			io.ReaderFrom
-		}{i, flush, push, readFrom}
-
-	case !isCloseNotifier && !isFlusher && isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Hijacker
-			http.Pusher
-			io.ReaderFrom
-		}{i, hijack, push, readFrom}
-
-	case isCloseNotifier && isFlusher && isHijacker && isPusher && !isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			http.Hijacker
-			http.Pusher
-		}{i, closeNotifier, flush, hijack, push}
-
-	case isCloseNotifier && isFlusher && isHijacker && !isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			http.Hijacker
-			io.ReaderFrom
-		}{i, closeNotifier, flush, hijack, readFrom}
-
-	case isCloseNotifier && isFlusher && !isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			http.Pusher
-			io.ReaderFrom
-		}{i, closeNotifier, flush, push, readFrom}
-
-	case isCloseNotifier && !isFlusher && isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Hijacker
-			http.Pusher
-			io.ReaderFrom
-		}{i, closeNotifier, hijack, push, readFrom}
-
-	case !isCloseNotifier && isFlusher && isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.Flusher
-			http.Hijacker
-			http.Pusher
-			io.ReaderFrom
-		}{i, flush, hijack, push, readFrom}
-
-	case isCloseNotifier && isFlusher && isHijacker && isPusher && isReaderFrom:
-		return struct {
-			http.ResponseWriter
-			http.CloseNotifier
-			http.Flusher
-			http.Hijacker
-			http.Pusher
-			io.ReaderFrom
-		}{i, closeNotifier, flush, hijack, push, readFrom}
-
-	default:
-		return struct {
-			http.ResponseWriter
-		}{i}
-	}
-}

pkg/api/mock.go

@@ -1,32 +0,0 @@
-package api
-
-import (
-	"time"
-
-	"github.com/gorilla/mux"
-	"go.uber.org/zap"
-)
-
-func NewMockServer() *Server {
-	config := &Config{
-		Port:                      "9898",
-		HttpServerShutdownTimeout: 5 * time.Second,
-		HttpServerTimeout:         30 * time.Second,
-		BackendURL:                []string{},
-		ConfigPath:                "/config",
-		DataPath:                  "/data",
-		HttpClientTimeout:         30 * time.Second,
-		UIColor:                   "blue",
-		UIPath:                    ".ui",
-		UIMessage:                 "Greetings",
-		Hostname:                  "localhost",
-	}
-
-	logger, _ := zap.NewDevelopment()
-
-	return &Server{
-		router: mux.NewRouter(),
-		logger: logger,
-		config: config,
-	}
-}

pkg/api/panic.go

@@ -1,14 +0,0 @@
-package api
-
-import (
-	"net/http"
-)
-
-// Panic godoc
-// @Summary Panic
-// @Description crashes the process with exit code 255
-// @Tags HTTP API
-// @Router /panic [get]
-func (s *Server) panicHandler(w http.ResponseWriter, r *http.Request) {
-	s.logger.Panic("Panic command received")
-}

pkg/api/server.go

@@ -1,247 +0,0 @@
-package api
-
-import (
-	"context"
-	"fmt"
-	"github.com/swaggo/swag"
-	"net/http"
-	_ "net/http/pprof"
-	"os"
-	"strings"
-	"sync/atomic"
-	"time"
-
-	"github.com/gorilla/mux"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"github.com/spf13/viper"
-	_ "github.com/stefanprodan/podinfo/pkg/api/docs"
-	"github.com/stefanprodan/podinfo/pkg/fscache"
-	"github.com/swaggo/http-swagger"
-	"go.uber.org/zap"
-)
-
-// @title Podinfo API
-// @version 2.0
-// @description Go microservice template for Kubernetes.
-
-// @contact.name Source Code
-// @contact.url https://github.com/stefanprodan/podinfo
-
-// @license.name MIT License
-// @license.url https://github.com/stefanprodan/podinfo/blob/master/LICENSE
-
-// @host localhost:9898
-// @BasePath /
-// @schemes http https
-
-var (
-	healthy int32
-	ready   int32
-	watcher *fscache.Watcher
-)
-
-type FluxConfig struct {
-	GitUrl    string `mapstructure:"git-url"`
-	GitBranch string `mapstructure:"git-branch"`
-}
-
-type Config struct {
-	HttpClientTimeout         time.Duration `mapstructure:"http-client-timeout"`
-	HttpServerTimeout         time.Duration `mapstructure:"http-server-timeout"`
-	HttpServerShutdownTimeout time.Duration `mapstructure:"http-server-shutdown-timeout"`
-	BackendURL                []string      `mapstructure:"backend-url"`
-	UILogo                    string        `mapstructure:"ui-logo"`
-	UIMessage                 string        `mapstructure:"ui-message"`
-	UIColor                   string        `mapstructure:"ui-color"`
-	UIPath                    string        `mapstructure:"ui-path"`
-	DataPath                  string        `mapstructure:"data-path"`
-	ConfigPath                string        `mapstructure:"config-path"`
-	Port                      string        `mapstructure:"port"`
-	PortMetrics               int           `mapstructure:"port-metrics"`
-	Hostname                  string        `mapstructure:"hostname"`
-	RandomDelay               bool          `mapstructure:"random-delay"`
-	RandomError               bool          `mapstructure:"random-error"`
-	JWTSecret                 string        `mapstructure:"jwt-secret"`
-}
-
-type Server struct {
-	router *mux.Router
-	logger *zap.Logger
-	config *Config
-}
-
-func NewServer(config *Config, logger *zap.Logger) (*Server, error) {
-	srv := &Server{
-		router: mux.NewRouter(),
-		logger: logger,
-		config: config,
-	}
-
-	return srv, nil
-}
-
-func (s *Server) registerHandlers() {
-	s.router.Handle("/metrics", promhttp.Handler())
-	s.router.PathPrefix("/debug/pprof/").Handler(http.DefaultServeMux)
-	s.router.HandleFunc("/", s.indexHandler).HeadersRegexp("User-Agent", "^Mozilla.*").Methods("GET")
-	s.router.HandleFunc("/", s.infoHandler).Methods("GET")
-	s.router.HandleFunc("/version", s.versionHandler).Methods("GET")
-	s.router.HandleFunc("/echo", s.echoHandler).Methods("POST")
-	s.router.HandleFunc("/env", s.envHandler).Methods("GET", "POST")
-	s.router.HandleFunc("/headers", s.echoHeadersHandler).Methods("GET", "POST")
-	s.router.HandleFunc("/delay/{wait:[0-9]+}", s.delayHandler).Methods("GET").Name("delay")
-	s.router.HandleFunc("/healthz", s.healthzHandler).Methods("GET")
-	s.router.HandleFunc("/readyz", s.readyzHandler).Methods("GET")
-	s.router.HandleFunc("/readyz/enable", s.enableReadyHandler).Methods("POST")
-	s.router.HandleFunc("/readyz/disable", s.disableReadyHandler).Methods("POST")
-	s.router.HandleFunc("/panic", s.panicHandler).Methods("GET")
-	s.router.HandleFunc("/status/{code:[0-9]+}", s.statusHandler).Methods("GET", "POST", "PUT").Name("status")
-	s.router.HandleFunc("/store", s.storeWriteHandler).Methods("POST")
-	s.router.HandleFunc("/store/{hash}", s.storeReadHandler).Methods("GET").Name("store")
-	s.router.HandleFunc("/configs", s.configReadHandler).Methods("GET")
-	s.router.HandleFunc("/token", s.tokenGenerateHandler).Methods("POST")
-	s.router.HandleFunc("/token/validate", s.tokenValidateHandler).Methods("GET")
-	s.router.HandleFunc("/api/info", s.infoHandler).Methods("GET")
-	s.router.HandleFunc("/api/echo", s.echoHandler).Methods("POST")
-	s.router.HandleFunc("/ws/echo", s.echoWsHandler)
-	s.router.HandleFunc("/chunked", s.chunkedHandler)
-	s.router.HandleFunc("/chunked/{wait:[0-9]+}", s.chunkedHandler)
-	s.router.PathPrefix("/swagger/").Handler(httpSwagger.Handler(
-		httpSwagger.URL("/swagger/doc.json"),
-	))
-	s.router.PathPrefix("/swagger/").Handler(httpSwagger.Handler(
-		httpSwagger.URL("/swagger/doc.json"),
-	))
-	s.router.HandleFunc("/swagger.json", func(w http.ResponseWriter, r *http.Request) {
-		doc, err := swag.ReadDoc()
-		if err != nil {
-			s.logger.Error("swagger error", zap.Error(err), zap.String("path", "/swagger.json"))
-		}
-		w.Write([]byte(doc))
-	})
-}
-
-func (s *Server) registerMiddlewares() {
-	prom := NewPrometheusMiddleware()
-	s.router.Use(prom.Handler)
-	httpLogger := NewLoggingMiddleware(s.logger)
-	s.router.Use(httpLogger.Handler)
-	s.router.Use(versionMiddleware)
-	if s.config.RandomDelay {
-		s.router.Use(randomDelayMiddleware)
-	}
-	if s.config.RandomError {
-		s.router.Use(randomErrorMiddleware)
-	}
-}
-
-func (s *Server) ListenAndServe(stopCh <-chan struct{}) {
-	go s.startMetricsServer()
-
-	s.registerHandlers()
-	s.registerMiddlewares()
-
-	srv := &http.Server{
-		Addr:         ":" + s.config.Port,
-		WriteTimeout: s.config.HttpServerTimeout,
-		ReadTimeout:  s.config.HttpServerTimeout,
-		IdleTimeout:  2 * s.config.HttpServerTimeout,
-		Handler:      s.router,
-	}
-
-	//s.printRoutes()
-
-	// load configs in memory and start watching for changes in the config dir
-	if stat, err := os.Stat(s.config.ConfigPath); err == nil && stat.IsDir() {
-		var err error
-		watcher, err = fscache.NewWatch(s.config.ConfigPath)
-		if err != nil {
-			s.logger.Error("config watch error", zap.Error(err), zap.String("path", s.config.ConfigPath))
-		} else {
-			watcher.Watch()
-		}
-	}
-
-	// run server in background
-	go func() {
-		if err := srv.ListenAndServe(); err != http.ErrServerClosed {
-			s.logger.Fatal("HTTP server crashed", zap.Error(err))
-		}
-	}()
-
-	// signal Kubernetes the server is ready to receive traffic
-	atomic.StoreInt32(&healthy, 1)
-	atomic.StoreInt32(&ready, 1)
-
-	// wait for SIGTERM or SIGINT
-	<-stopCh
-	ctx, cancel := context.WithTimeout(context.Background(), s.config.HttpServerShutdownTimeout)
-	defer cancel()
-
-	// all calls to /healthz and /readyz will fail from now on
-	atomic.StoreInt32(&healthy, 0)
-	atomic.StoreInt32(&ready, 0)
-
-	s.logger.Info("Shutting down HTTP server", zap.Duration("timeout", s.config.HttpServerShutdownTimeout))
-
-	// wait for Kubernetes readiness probe to remove this instance from the load balancer
-	// the readiness check interval must be lower than the timeout
-	if viper.GetString("level") != "debug" {
-		time.Sleep(3 * time.Second)
-	}
-
-	// attempt graceful shutdown
-	if err := srv.Shutdown(ctx); err != nil {
-		s.logger.Warn("HTTP server graceful shutdown failed", zap.Error(err))
-	} else {
-		s.logger.Info("HTTP server stopped")
-	}
-}
-
-func (s *Server) startMetricsServer() {
-	if s.config.PortMetrics > 0 {
-		mux := http.DefaultServeMux
-		mux.Handle("/metrics", promhttp.Handler())
-		mux.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
-			w.WriteHeader(http.StatusOK)
-			w.Write([]byte("OK"))
-		})
-
-		srv := &http.Server{
-			Addr:    fmt.Sprintf(":%v", s.config.PortMetrics),
-			Handler: mux,
-		}
-
-		srv.ListenAndServe()
-	}
-}
-
-func (s *Server) printRoutes() {
-	s.router.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
-		pathTemplate, err := route.GetPathTemplate()
-		if err == nil {
-			fmt.Println("ROUTE:", pathTemplate)
-		}
-		pathRegexp, err := route.GetPathRegexp()
-		if err == nil {
-			fmt.Println("Path regexp:", pathRegexp)
-		}
-		queriesTemplates, err := route.GetQueriesTemplates()
-		if err == nil {
-			fmt.Println("Queries templates:", strings.Join(queriesTemplates, ","))
-		}
-		queriesRegexps, err := route.GetQueriesRegexp()
-		if err == nil {
-			fmt.Println("Queries regexps:", strings.Join(queriesRegexps, ","))
-		}
-		methods, err := route.GetMethods()
-		if err == nil {
-			fmt.Println("Methods:", strings.Join(methods, ","))
-		}
-		fmt.Println()
-		return nil
-	})
-}
-
-type ArrayResponse []string
-type MapResponse map[string]string

pkg/api/status.go

@@ -1,28 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"github.com/gorilla/mux"
-	"strconv"
-)
-
-// Status godoc
-// @Summary Status code
-// @Description sets the response status code to the specified code
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /status/{code} [get]
-// @Success 200 {object} api.MapResponse
-func (s *Server) statusHandler(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-
-	code, err := strconv.Atoi(vars["code"])
-	if err != nil {
-		s.ErrorResponse(w, r, err.Error(), http.StatusBadRequest)
-		return
-	}
-
-	s.JSONResponseCode(w, r, map[string]int{"status": code}, code)
-}

pkg/api/status_test.go

@@ -1,26 +0,0 @@
-package api
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-)
-
-func TestStatusHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/status/404", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-
-	srv.router.HandleFunc("/status/{code}", srv.statusHandler)
-	srv.router.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusNotFound {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusNotFound)
-	}
-}

pkg/api/store.go

@@ -1,64 +0,0 @@
-package api
-
-import (
-	"crypto/sha1"
-	"encoding/hex"
-	"io/ioutil"
-	"net/http"
-	"path"
-
-	"github.com/gorilla/mux"
-	"go.uber.org/zap"
-)
-
-// Store godoc
-// @Summary Upload file
-// @Description writes the posted content to disk at /data/hash and returns the SHA1 hash of the content
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /store [post]
-// @Success 200 {object} api.MapResponse
-func (s *Server) storeWriteHandler(w http.ResponseWriter, r *http.Request) {
-
-	body, err := ioutil.ReadAll(r.Body)
-	if err != nil {
-		s.ErrorResponse(w, r, "reading the request body failed", http.StatusBadRequest)
-		return
-	}
-
-	hash := hash(string(body))
-	err = ioutil.WriteFile(path.Join(s.config.DataPath, hash), body, 0644)
-	if err != nil {
-		s.logger.Warn("writing file failed", zap.Error(err), zap.String("file", path.Join(s.config.DataPath, hash)))
-		s.ErrorResponse(w, r, "writing file failed", http.StatusInternalServerError)
-		return
-	}
-	s.JSONResponseCode(w, r, map[string]string{"hash": hash}, http.StatusAccepted)
-}
-
-// Store godoc
-// @Summary Download file
-// @Description returns the content of the file /data/hash if exists
-// @Tags HTTP API
-// @Accept json
-// @Produce plain
-// @Router /store/{hash} [get]
-// @Success 200 {string} string "file"
-func (s *Server) storeReadHandler(w http.ResponseWriter, r *http.Request) {
-	hash := mux.Vars(r)["hash"]
-	content, err := ioutil.ReadFile(path.Join(s.config.DataPath, hash))
-	if err != nil {
-		s.logger.Warn("reading file failed", zap.Error(err), zap.String("file", path.Join(s.config.DataPath, hash)))
-		s.ErrorResponse(w, r, "reading file failed", http.StatusInternalServerError)
-		return
-	}
-	w.WriteHeader(http.StatusAccepted)
-	w.Write([]byte(content))
-}
-
-func hash(input string) string {
-	h := sha1.New()
-	h.Write([]byte(input))
-	return hex.EncodeToString(h.Sum(nil))
-}

pkg/api/token.go

@@ -1,123 +0,0 @@
-package api
-
-import (
-	"fmt"
-	"net/http"
-	"strings"
-	"time"
-
-	"io/ioutil"
-
-	"github.com/dgrijalva/jwt-go"
-	"go.uber.org/zap"
-)
-
-type jwtCustomClaims struct {
-	Name string `json:"name"`
-	jwt.StandardClaims
-}
-
-// Token godoc
-// @Summary Generate JWT token
-// @Description issues a JWT token valid for one minute
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /token [post]
-// @Success 200 {object} api.TokenResponse
-func (s *Server) tokenGenerateHandler(w http.ResponseWriter, r *http.Request) {
-	body, err := ioutil.ReadAll(r.Body)
-	if err != nil {
-		s.logger.Error("reading the request body failed", zap.Error(err))
-		s.ErrorResponse(w, r, "invalid request body", http.StatusBadRequest)
-		return
-	}
-	defer r.Body.Close()
-
-	user := "anonymous"
-	if len(body) > 0 {
-		user = string(body)
-	}
-
-	claims := &jwtCustomClaims{
-		user,
-		jwt.StandardClaims{
-			Issuer:    "podinfo",
-			ExpiresAt: time.Now().Add(time.Minute * 1).Unix(),
-		},
-	}
-
-	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
-	t, err := token.SignedString([]byte(s.config.JWTSecret))
-	if err != nil {
-		s.ErrorResponse(w, r, err.Error(), http.StatusBadRequest)
-		return
-	}
-
-	var result = TokenResponse{
-		Token:     t,
-		ExpiresAt: time.Unix(claims.StandardClaims.ExpiresAt, 0),
-	}
-
-	s.JSONResponse(w, r, result)
-}
-
-// TokenValidate godoc
-// @Summary Validate JWT token
-// @Description validates the JWT token
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /token/validate [post]
-// @Success 200 {object} api.TokenValidationResponse
-// @Failure 401 {string} string "Unauthorized"
-// Get: JWT=$(curl -s -d 'test' localhost:9898/token | jq -r .token)
-// Post: curl -H "Authorization: Bearer ${JWT}" localhost:9898/token/validate
-func (s *Server) tokenValidateHandler(w http.ResponseWriter, r *http.Request) {
-	authorizationHeader := r.Header.Get("authorization")
-	if authorizationHeader == "" {
-		s.ErrorResponse(w, r, "authorization bearer header required", http.StatusUnauthorized)
-		return
-	}
-	bearerToken := strings.Split(authorizationHeader, " ")
-	if len(bearerToken) != 2 || strings.ToLower(bearerToken[0]) != "bearer" {
-		s.ErrorResponse(w, r, "authorization bearer header required", http.StatusUnauthorized)
-		return
-	}
-
-	claims := jwtCustomClaims{}
-	token, err := jwt.ParseWithClaims(bearerToken[1], &claims, func(token *jwt.Token) (interface{}, error) {
-		if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
-			return nil, fmt.Errorf("invalid signing method")
-		}
-		return []byte(s.config.JWTSecret), nil
-	})
-	if err != nil {
-		s.ErrorResponse(w, r, err.Error(), http.StatusUnauthorized)
-		return
-	}
-
-	if token.Valid {
-		if claims.StandardClaims.Issuer != "podinfo" {
-			s.ErrorResponse(w, r, "invalid issuer", http.StatusUnauthorized)
-		} else {
-			var result = TokenValidationResponse{
-				TokenName: claims.Name,
-				ExpiresAt: time.Unix(claims.StandardClaims.ExpiresAt, 0),
-			}
-			s.JSONResponse(w, r, result)
-		}
-	} else {
-		s.ErrorResponse(w, r, "Invalid authorization token", http.StatusUnauthorized)
-	}
-}
-
-type TokenResponse struct {
-	Token     string    `json:"token"`
-	ExpiresAt time.Time `json:"expires_at"`
-}
-
-type TokenValidationResponse struct {
-	TokenName string    `json:"token_name"`
-	ExpiresAt time.Time `json:"expires_at"`
-}

pkg/api/version.go

@@ -1,22 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"github.com/stefanprodan/podinfo/pkg/version"
-)
-
-// Version godoc
-// @Summary Version
-// @Description returns podinfo version and git commit hash
-// @Tags HTTP API
-// @Produce json
-// @Router /version [get]
-// @Success 200 {object} api.MapResponse
-func (s *Server) versionHandler(w http.ResponseWriter, r *http.Request) {
-	result := map[string]string{
-		"version": version.VERSION,
-		"commit":  version.REVISION,
-	}
-	s.JSONResponse(w, r, result)
-}

pkg/api/version_test.go

@@ -1,36 +0,0 @@
-package api
-
-import (
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"regexp"
-	"testing"
-)
-
-func TestVersionHandler(t *testing.T) {
-	req, err := http.NewRequest("GET", "/version", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	rr := httptest.NewRecorder()
-	srv := NewMockServer()
-	handler := http.HandlerFunc(srv.versionHandler)
-
-	handler.ServeHTTP(rr, req)
-
-	// Check the status code is what we expect.
-	if status := rr.Code; status != http.StatusOK {
-		t.Errorf("handler returned wrong status code: got %v want %v",
-			status, http.StatusOK)
-	}
-
-	// Check the response body is what we expect.
-	expected := "unknown"
-	r := regexp.MustCompile(fmt.Sprintf("(?m:%s)", expected))
-	if !r.MatchString(rr.Body.String()) {
-		t.Fatalf("handler returned unexpected body:\ngot \n%v \nwant \n%s",
-			rr.Body.String(), expected)
-	}
-}

pkg/fscache/fscache.go

@@ -1,112 +0,0 @@
-package fscache
-
-import (
-	"errors"
-	"io/ioutil"
-	"log"
-	"path/filepath"
-	"strings"
-	"sync"
-
-	"github.com/fsnotify/fsnotify"
-)
-
-type Watcher struct {
-	dir       string
-	fswatcher *fsnotify.Watcher
-	Cache     *sync.Map
-}
-
-// NewWatch creates a directory watcher and
-// updates the cache when any file changes in that dir
-func NewWatch(dir string) (*Watcher, error) {
-	if len(dir) < 1 {
-		return nil, errors.New("directory is empty")
-	}
-
-	fw, err := fsnotify.NewWatcher()
-	if err != nil {
-		return nil, err
-	}
-
-	w := &Watcher{
-		dir:       dir,
-		fswatcher: fw,
-		Cache:     new(sync.Map),
-	}
-
-	log.Printf("fscache start watcher for %s", w.dir)
-	err = w.fswatcher.Add(w.dir)
-	if err != nil {
-		return nil, err
-	}
-
-	// initial read
-	err = w.updateCache()
-	if err != nil {
-		return nil, err
-	}
-
-	return w, nil
-}
-
-// Watch watches for when kubelet updates the volume mount content
-func (w *Watcher) Watch() {
-	go func() {
-		for {
-			select {
-			// it can take up to a 2 minutes for kubelet to recreate the ..data symlink
-			case event := <-w.fswatcher.Events:
-				if event.Op&fsnotify.Create == fsnotify.Create {
-					if filepath.Base(event.Name) == "..data" {
-						err := w.updateCache()
-						if err != nil {
-							log.Printf("fscache update error %v", err)
-						} else {
-							log.Printf("fscache reload %s", w.dir)
-						}
-					}
-				}
-			case err := <-w.fswatcher.Errors:
-				log.Printf("fswatcher %s error %v", w.dir, err)
-			}
-		}
-	}()
-}
-
-// updateCache reads files content and loads them into the cache
-func (w *Watcher) updateCache() error {
-	fileMap := make(map[string]string)
-	files, err := ioutil.ReadDir(w.dir)
-	if err != nil {
-		return err
-	}
-
-	// read files ignoring symlinks and sub directories
-	for _, file := range files {
-		name := filepath.Base(file.Name())
-		if !file.IsDir() && !strings.Contains(name, "..") {
-			b, err := ioutil.ReadFile(filepath.Join(w.dir, file.Name()))
-			if err != nil {
-				return err
-			}
-			fileMap[name] = string(b)
-		}
-	}
-
-	// remove deleted files from cache
-	w.Cache.Range(func(key interface{}, value interface{}) bool {
-		_, ok := fileMap[key.(string)]
-		if !ok {
-			w.Cache.Delete(key)
-		}
-		return true
-	})
-
-	// sync cache
-	for k, v := range fileMap {
-		w.Cache.Store(k, v)
-	}
-
-	return nil
-}

pkg/grpc/server.go

@@ -1,46 +0,0 @@
-package grpc
-
-import (
-	"fmt"
-	"net"
-
-	"go.uber.org/zap"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/health"
-	"google.golang.org/grpc/health/grpc_health_v1"
-)
-
-type Server struct {
-	logger *zap.Logger
-	config *Config
-}
-
-type Config struct {
-	Port        int    `mapstructure:"grpc-port"`
-	ServiceName string `mapstructure:"grpc-service-name"`
-}
-
-func NewServer(config *Config, logger *zap.Logger) (*Server, error) {
-	srv := &Server{
-		logger: logger,
-		config: config,
-	}
-
-	return srv, nil
-}
-
-func (s *Server) ListenAndServe() {
-	listener, err := net.Listen("tcp", fmt.Sprintf(":%v", s.config.Port))
-	if err != nil {
-		s.logger.Fatal("failed to listen", zap.Int("port", s.config.Port))
-	}
-
-	srv := grpc.NewServer()
-	server := health.NewServer()
-	grpc_health_v1.RegisterHealthServer(srv, server)
-	server.SetServingStatus(s.config.ServiceName, grpc_health_v1.HealthCheckResponse_SERVING)
-
-	if err := srv.Serve(listener); err != nil {
-		s.logger.Fatal("failed to serve", zap.Error(err))
-	}
-}

pkg/signals/signal.go

@@ -1,27 +0,0 @@
-package signals
-
-import (
-	"os"
-	"os/signal"
-)
-
-var onlyOneSignalHandler = make(chan struct{})
-
-// SetupSignalHandler registered for SIGTERM and SIGINT. A stop channel is returned
-// which is closed on one of these signals. If a second signal is caught, the program
-// is terminated with exit code 1.
-func SetupSignalHandler() (stopCh <-chan struct{}) {
-	close(onlyOneSignalHandler) // panics when called twice
-
-	stop := make(chan struct{})
-	c := make(chan os.Signal, 2)
-	signal.Notify(c, shutdownSignals...)
-	go func() {
-		<-c
-		close(stop)
-		<-c
-		os.Exit(1) // second signal. Exit directly.
-	}()
-
-	return stop
-}

pkg/signals/signal_posix.go

@@ -1,10 +0,0 @@
-// +build !windows
-
-package signals
-
-import (
-	"os"
-	"syscall"
-)
-
-var shutdownSignals = []os.Signal{os.Interrupt, syscall.SIGTERM}

pkg/signals/signal_windows.go

@@ -1,7 +0,0 @@
-package signals
-
-import (
-	"os"
-)
-
-var shutdownSignals = []os.Signal{os.Interrupt}

pkg/version/version.go

@@ -1,4 +0,0 @@
-package version
-
-var VERSION = "3.1.3"
-var REVISION = "unknown"