Merge pull request #408 from stefanprodan/release-6.9.1

Release 6.9.1

.github/actions/release-notes/Dockerfile

@@ -1,6 +0,0 @@
-FROM stefanprodan/alpine-base:latest
-
-COPY entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
-
-ENTRYPOINT ["/entrypoint.sh"]

.github/actions/release-notes/action.yml

@@ -1,9 +0,0 @@
-name: 'github-release-notes'
-description: 'A GitHub Action to run github-release-notes commands'
-author: 'Stefan Prodan'
-branding:
-  icon: 'command'
-  color: 'blue'
-runs:
-  using: 'docker'
-  image: 'Dockerfile'

.github/actions/release-notes/entrypoint.sh

@@ -1,25 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-set -o pipefail
-
-VERSION=0.2.0
-BIN_DIR="$GITHUB_WORKSPACE/bin"
-
-main() {
-  mkdir -p ${BIN_DIR}
-  tmpDir=$(mktemp -d)
-
-  pushd $tmpDir >& /dev/null
-
-  curl -sSL https://github.com/buchanae/github-release-notes/releases/download/${VERSION}/github-release-notes-linux-amd64-${VERSION}.tar.gz | tar xz
-  cp github-release-notes ${BIN_DIR}/github-release-notes
-
-  popd >& /dev/null
-  rm -rf $tmpDir
-}
-
-main
-
-echo "$BIN_DIR" >> $GITHUB_PATH
-echo "$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/bin" >> $GITHUB_PATH

.github/dependabot.yaml

@@ -0,0 +1,11 @@
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    groups:
+      actions:
+        patterns:
+          - "*"
+    schedule:
+      interval: "weekly"

.github/workflows/cve-scan.yml

@@ -1,31 +1,23 @@
 name: cve-scan
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - "master"
+  pull_request:
+    branches:
+      - "master"
 
 permissions:
   contents: read
 
 jobs:
-  trivy:
+  govulncheck:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build image
-        id: build
-        run: |
-          IMAGE=test/podinfo:${GITHUB_SHA}
-          docker build -t ${IMAGE} .
-          echo "image=$IMAGE" >> $GITHUB_OUTPUT
-      - name: Run Trivy vulnerability scanner
-        uses: aquasecurity/trivy-action@master
-        with:
-          image-ref: ${{ steps.build.outputs.image }}
-          format: table
-          exit-code: "1"
-          ignore-unfixed: true
-          vuln-type: os,library
-          severity: CRITICAL,HIGH
+        uses: actions/checkout@v4
+      - name: Vulnerability scan
+        id: govulncheck
+        uses: golang/govulncheck-action@v1

.github/workflows/e2e.yml

@@ -16,18 +16,17 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Kubernetes
-        uses: helm/kind-action@v1.8.0
+        uses: helm/kind-action@v1.12.0
         with:
-          version: v0.20.0
           cluster_name: kind
       - name: Build container image
         run: |
           ./test/build.sh
           kind load docker-image test/podinfo:latest
       - name: Setup Helm
-        uses: azure/setup-helm@v3
+        uses: azure/setup-helm@v4
         with:
-          version: v3.12.3
+          version: v3.17.3
       - name: Deploy
         run: ./test/deploy.sh
       - name: Run integration tests
@@ -53,9 +52,8 @@ jobs:
       - name: Setup Timoni
         uses: stefanprodan/timoni/actions/setup@main
       - name: Setup Kubernetes
-        uses: helm/kind-action@v1.8.0
+        uses: helm/kind-action@v1.12.0
         with:
-          version: v0.20.0
           cluster_name: kind
       - name: Build container
         run: |

.github/workflows/release.yml

@@ -18,12 +18,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: sigstore/cosign-installer@v3
-      - uses: fluxcd/flux2/action@main
-      - uses: stefanprodan/timoni/actions/setup@main
+      - uses: fluxcd/flux2/action@v2.6.4
+      - uses: stefanprodan/timoni/actions/setup@v0.25.1
       - name: Setup Notation CLI
         uses: notaryproject/notation-action/setup@v1
         with:
-          version: "1.0.0"
+          version: "1.1.0"
       - name: Setup Notation signing keys
         run: |
           mkdir -p ~/.config/notation/localkeys/
@@ -33,13 +33,13 @@ jobs:
         env:
           NOTATION_KEY: ${{ secrets.NOTATION_SIGNING_KEY }}
       - name: Setup Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
-          go-version: 1.21.x
+          go-version: 1.24.x
       - name: Setup Helm
-        uses: azure/setup-helm@v3
+        uses: azure/setup-helm@v4
         with:
-          version: v3.12.3
+          version: v3.17.3
       - name: Setup QEMU
         uses: docker/setup-qemu-action@v3
         with:
@@ -79,7 +79,7 @@ jobs:
             type=raw,value=${{ steps.prep.outputs.VERSION }}
             type=raw,value=latest
       - name: Publish multi-arch image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           sbom: true
           provenance: true
@@ -113,7 +113,7 @@ jobs:
             --source="${{ github.event.repository.html_url }}" \
             --revision="${GITHUB_REF_NAME}/${GITHUB_SHA}"
           flux tag artifact oci://ghcr.io/stefanprodan/manifests/podinfo:${{ steps.prep.outputs.VERSION }} --tag latest
-      - name: Sign OCI artifacts
+      - name: Sign artifacts with Cosign
         env:
           COSIGN_EXPERIMENTAL: 1
         run: |
@@ -121,12 +121,8 @@ jobs:
           cosign sign ghcr.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }} --yes
           cosign sign ghcr.io/stefanprodan/charts/podinfo:${{ steps.prep.outputs.VERSION }} --yes
           cosign sign ghcr.io/stefanprodan/manifests/podinfo:${{ steps.prep.outputs.VERSION }} --yes
-          notation sign --signature-format cose docker.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }}
-          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }}
-          notation sign --signature-format cose ghcr.io/stefanprodan/charts/podinfo:${{ steps.prep.outputs.VERSION }}
-          notation sign --signature-format cose ghcr.io/stefanprodan/manifests/podinfo:${{ steps.prep.outputs.VERSION }}
       - name: Publish base image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           push: true
           builder: ${{ steps.buildx.outputs.name }}
@@ -145,25 +141,25 @@ jobs:
             --source="${{ github.event.repository.html_url }}" \
             --revision="${GITHUB_REF_NAME}/${GITHUB_SHA}"
           flux tag artifact oci://ghcr.io/stefanprodan/podinfo-deploy:${{ steps.prep.outputs.VERSION }} --tag latest
-      - name: Sign config artifact
+      - name: Sign config artifact with cso
         run: |
           echo "$COSIGN_KEY" > /tmp/cosign.key
           cosign sign -key /tmp/cosign.key ghcr.io/stefanprodan/podinfo-deploy:${{ steps.prep.outputs.VERSION }} --yes
           cosign sign -key /tmp/cosign.key ghcr.io/stefanprodan/podinfo-deploy:latest --yes
-          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo-deploy:${{ steps.prep.outputs.VERSION }}
-          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo-deploy:latest
         env:
           COSIGN_PASSWORD: ${{secrets.COSIGN_PASSWORD}}
           COSIGN_KEY: ${{secrets.COSIGN_KEY}}
-      - uses: ./.github/actions/release-notes
-      - name: Generate release notes
+      - name: Sign artifacts with Notation
         run: |
-          echo 'CHANGELOG' > /tmp/release.txt
-          github-release-notes -org stefanprodan -repo podinfo -since-latest-release >> /tmp/release.txt
+          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }}
+          notation sign --signature-format cose ghcr.io/stefanprodan/charts/podinfo:${{ steps.prep.outputs.VERSION }}
+          notation sign --signature-format cose ghcr.io/stefanprodan/manifests/podinfo:${{ steps.prep.outputs.VERSION }}
+          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo-deploy:${{ steps.prep.outputs.VERSION }}
+          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo-deploy:latest
       - name: Publish release
-        uses: goreleaser/goreleaser-action@v5
+        uses: goreleaser/goreleaser-action@v6
         with:
           version: latest
-          args: release --release-notes=/tmp/release.txt --skip-validate
+          args: release --skip=validate
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -10,7 +10,8 @@ permissions:
   contents: read
 
 env:
-  KUBERNETES_VERSION: 1.26.0
+  KUBERNETES_VERSION: 1.31.0
+  HELM_VERSION: 3.17.3
 
 jobs:
   test:
@@ -19,26 +20,26 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
-          go-version: 1.21.x
+          go-version: 1.24.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
       - name: Setup kubectl
-        uses: azure/setup-kubectl@v3
+        uses: azure/setup-kubectl@v4
         with:
           version: v${{ env.KUBERNETES_VERSION }}
       - name: Setup kubeconform
         uses: ./.github/actions/kubeconform
       - name: Setup Helm
-        uses: azure/setup-helm@v3
+        uses: azure/setup-helm@v4
         with:
-          version: v3.10.3
+          version: v${{ env.HELM_VERSION }}
       - name: Setup CUE
-        uses: cue-lang/setup-cue@v1.0.0
+        uses: cue-lang/setup-cue@v1.0.1
       - name: Setup Timoni
-        uses: stefanprodan/timoni/actions/setup@main
+        uses: stefanprodan/timoni/actions/setup@v0.25.1
       - name: Run unit tests
         run: make test
       - name: Validate Helm chart
@@ -51,7 +52,7 @@ jobs:
       - name: Verify CUE formatting
         working-directory: ./timoni/podinfo
         run: |
-          cue fmt ./..
+          cue fmt ./...
           status=$(git status . --porcelain)
           [[ -z "$status" ]] || {
             echo "CUE files are not correctly formatted"

.gitignore

@@ -23,3 +23,6 @@ bin/
 cue/cue.mod/gen/
 cue/go.mod
 cue/go.sum
+
+.notation/podinfo.csr
+.notation/podinfo.key

.goreleaser.yml

@@ -1,3 +1,18 @@
+version: 2
+
+# xref: https://goreleaser.com/customization/project/
+project_name: podinfo
+
+# xref: https://goreleaser.com/customization/hooks/
+before:
+  hooks:
+    - go mod download
+
+# xref: https://goreleaser.com/customization/env/
+env:
+  - CGO_ENABLED=0
+
+# xref: https://goreleaser.com/customization/build/
 builds:
   - main: ./cmd/podcli
     binary: podcli
@@ -8,9 +23,13 @@ builds:
       - linux
     goarch:
       - amd64
-    env:
-      - CGO_ENABLED=0
+
+# xref: https://goreleaser.com/customization/archive/
 archives:
   - name_template: "{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
     files:
-      - none*
+      - LICENSE
+
+# xref: https://goreleaser.com/customization/changelog/
+changelog:
+  use: github-native

.notation/README.md

@@ -0,0 +1,15 @@
+# Podinfo signed releases
+
+Podinfo release assets such as the Helm chart and the Flux artifact
+are published to GitHub Container Registry and are signed with
+[Notation](https://github.com/notaryproject/notation).
+
+## Generate signing keys
+
+Generate a new signing key pair:
+
+```sh
+openssl genrsa -out podinfo.key 2048
+openssl req -new -key podinfo.key -out podinfo.csr -config codesign.cnf
+openssl x509 -req -days 1826 -in podinfo.csr -signkey podinfo.key -out notation.crt -extensions v3_req -extfile codesign.cnf
+```

.notation/codesign.cnf

@@ -0,0 +1,18 @@
+[ req ]
+default_bits           = 2048
+default_keyfile        = privatekey.pem
+distinguished_name     = req_distinguished_name
+req_extensions         = v3_req
+prompt                 = no
+
+[ req_distinguished_name ]
+C                      = RO
+ST                     = BU
+L                      = Bucharest
+O                      = Notary
+CN                     = stefanprodan.com
+
+[ v3_req ]
+keyUsage               = critical,digitalSignature
+extendedKeyUsage       = critical,codeSigning
+#subjectKeyIdentifier  = hash

.notation/notation.crt

@@ -1,20 +1,21 @@
 -----BEGIN CERTIFICATE-----
-MIIDWjCCAkKgAwIBAgIUBk/7TYVIUsiCeUm5c11abfwMrZUwDQYJKoZIhvcNAQEL
-BQAwUTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAldBMRAwDgYDVQQHDAdTZWF0dGxl
-MQ8wDQYDVQQKDAZOb3RhcnkxEjAQBgNVBAMMCWZsdXhjZC5pbzAeFw0yMzEyMDcw
-NDIwNDhaFw0yNDEyMDYwNDIwNDhaMFExCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJX
-QTEQMA4GA1UEBwwHU2VhdHRsZTEPMA0GA1UECgwGTm90YXJ5MRIwEAYDVQQDDAlm
-bHV4Y2QuaW8wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCx1hpkMmSD
-rlyjjL8UYaciLBmMtwbpFUcejDgKSSKAqHGtTPrzSHrza1oFybyjwkG7SlbR6k23
-fuWTIz7gVjx+rEmbnJuAnzhGCES4TY+dPO/svhuAT9iGVlJ4TKuPXFO53c+GKY+t
-AJoWO04uzVbZsCNPlYmKoq3XvaMc3bnn2APr9xb7aHqF7LggqWe7GeKQEJvEdBYZ
-m1KLKym6+pqnEDSPENUVGMYKQwQHNmpVz6y+HdvuR4AQxHrHGvDxo+G7GIjrDe8l
-cW4PurFAbv3yLLvpC4ZkppPLuVv7p0kUwy1sSeWVu7uxZ/MPGqI2HSMctDbAvGLj
-bPY+rkVf3+4ZAgMBAAGjKjAoMA4GA1UdDwEB/wQEAwIHgDAWBgNVHSUBAf8EDDAK
-BggrBgEFBQcDAzANBgkqhkiG9w0BAQsFAAOCAQEAO2TSX5ewQXidW14UzhjNKTXt
-Yc8O6qMGNlv2PuCWT9k0ce6qC7s2XYAbvEWYNAS/fwdFC6cJMT/6/Y3s/zbFNrAH
-TMJTmGKZvtJnWywcCOg+HcRrLIpExJB1bAaTUW+oea9ABiitMeUEY6oiBGqacPeA
-4eVoDQ8wVS8oNHx71fmC9G6iNHaBTip3x81j0koz3JhHf1Mc3gKN56ww1RF/LMEa
-NW473dG/8pkuFOp6kuz775/EKBNuYfR6bEYx9zPNIpYAzVsveTnXTHsec3xkUoCQ
-xtfR15R8dfbvNFB1iFiew6oiBQ5Wz9abB0PU7b/pE21SjT1+lBKJ9xmMOzFwag==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 -----END CERTIFICATE-----

.notation/signingkeys.json

@@ -1,8 +1,8 @@
 {
-    "default": "fluxcd.io",
+    "default": "stefanprodan.com",
     "keys": [
         {
-            "name": "fluxcd.io",
+            "name": "stefanprodan.com",
             "keyPath": "/home/runner/.config/notation/localkeys/notation.key",
             "certPath": "/home/runner/.config/notation/localkeys/notation.crt"
         }

.notation/trustpolicy.json

@@ -2,7 +2,7 @@
     "version": "1.0",
     "trustPolicies": [
         {
-            "name": "fluxcd.io",
+            "name": "stefanprodan.com",
             "registryScopes": [
                 "ghcr.io/stefanprodan/podinfo-deploy",
                 "ghcr.io/stefanprodan/charts/podinfo"
@@ -10,9 +10,9 @@
             "signatureVerification": {
                 "level" : "strict"
             },
-            "trustStores": [ "ca:fluxcd.io" ],
+            "trustStores": [ "ca:stefanprodan.com" ],
             "trustedIdentities": [
-                "x509.subject: C=US, ST=WA, L=Seattle, O=Notary, CN=fluxcd.io"
+                "x509.subject: C=RO, ST=BU, L=Bucharest, O=Notary, CN=stefanprodan.com"
             ]
         }
     ]

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine as builder
+FROM golang:1.24-alpine AS builder
 
 ARG REVISION
 
@@ -18,7 +18,7 @@ RUN CGO_ENABLED=0 go build -ldflags "-s -w \
     -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${REVISION}" \
     -a -o bin/podcli cmd/podcli/*
 
-FROM alpine:3.19
+FROM alpine:3.22
 
 ARG BUILD_DATE
 ARG VERSION

Dockerfile.base

@@ -1,4 +1,4 @@
-FROM golang:1.21
+FROM golang:1.24
 
 WORKDIR /workspace
 

Dockerfile.xx

@@ -1,5 +1,5 @@
-ARG GO_VERSION=1.21
-ARG XX_VERSION=1.3.0
+ARG GO_VERSION=1.24
+ARG XX_VERSION=1.6.1
 
 FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
 
@@ -28,7 +28,7 @@ RUN xx-go build -ldflags "-s -w \
     -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${REVISION}" \
     -a -o bin/podcli cmd/podcli/*
 
-FROM alpine:3.19
+FROM alpine:3.22
 
 ARG BUILD_DATE
 ARG VERSION

Makefile

@@ -16,7 +16,7 @@ run:
 	--ui-logo=https://raw.githubusercontent.com/stefanprodan/podinfo/gh-pages/cuddle_clap.gif $(EXTRA_RUN_ARGS)
 
 .PHONY: test
-test:
+test: tidy fmt vet
 	go test ./... -coverprofile cover.out
 
 build:
@@ -24,14 +24,13 @@ build:
 	GIT_COMMIT=$$(git rev-list -1 HEAD) && CGO_ENABLED=0 go build  -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" -a -o ./bin/podcli ./cmd/podcli/*
 
 tidy:
-	rm -f go.sum; go mod tidy -compat=1.21
+	rm -f go.sum; go mod tidy -compat=1.24
 
 vet:
 	go vet ./...
 
 fmt:
-	gofmt -l -s -w ./
-	goimports -l -w ./
+	go fmt ./...
 
 build-charts:
 	helm lint charts/*
@@ -93,7 +92,7 @@ swagger:
 	go install github.com/swaggo/swag/cmd/swag@latest
 	go get github.com/swaggo/swag/gen@latest
 	go get github.com/swaggo/swag/cmd/swag@latest
-	cd pkg/api && $$(go env GOPATH)/bin/swag init -g server.go
+	cd pkg/api/http && $$(go env GOPATH)/bin/swag init -g server.go
 
 .PHONY: timoni-build
 timoni-build:

README.md

@@ -22,10 +22,10 @@ Specifications:
 * Swagger docs
 * Timoni, Helm and Kustomize installers
 * End-to-End testing with Kubernetes Kind and Helm
-* Multi-arch container image with Docker buildx and Github Actions
+* Multi-arch container image with Docker buildx and GitHub Actions
 * Container image signing with Sigstore cosign
 * SBOMs and SLSA Provenance embedded in the container image
-* CVE scanning with Trivy
+* CVE scanning with govulncheck
 
 Web API:
 
@@ -57,6 +57,16 @@ Web API:
 gRPC API:
 
 * `/grpc.health.v1.Health/Check` health checking
+* `/grpc.EchoService/Echo` echos the received content
+* `/grpc.VersionService/Version` returns podinfo version and Git commit hash
+* `/grpc.DelayService/Delay` returns a successful response after the given seconds in the body of gRPC request
+* `/grpc.EnvService/Env` returns environment variables as a JSON array
+* `/grpc.HeaderService/Header` returns the headers present in the gRPC request. Any custom header can also be given as a part of request and that can be returned using this API
+* `/grpc.InfoService/Info` returns the runtime information
+* `/grpc.PanicService/Panic` crashes the process with gRPC status code as '1 CANCELLED'
+* `/grpc.StatusService/Status` returns the gRPC Status code given in the request body
+* `/grpc.TokenService/TokenGenerate` issues a JWT token valid for one minute
+* `/grpc.TokenService/TokenValidate` validates the JWT token
 
 Web UI:
 

charts/podinfo/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
-version: 6.5.4
-appVersion: 6.5.4
+version: 6.9.1
+appVersion: 6.9.1
 name: podinfo
 engine: gotpl
 description: Podinfo Helm chart for Kubernetes

charts/podinfo/README.md

@@ -79,6 +79,10 @@ The following tables lists the configurable parameters of the podinfo chart and
 | `service.grpcService`             | `podinfo`              | gPRC service name                                                                                                      |
 | `service.nodePort`                | `31198`                | NodePort for the HTTP endpoint                                                                                         |
 | `h2c.enabled`                     | `false`                | Allow upgrading to h2c (non-TLS version of HTTP/2)                                                                     |
+| `extraEnvs`                       | `[]`                   | Extra environment variables for the podinfo container                                                                  |
+| `config.path`                     | `""`                   | config file path                                                                                                       |
+| `config.name`                     | `""`                   | config file name                                                                                                       |
+| `extraArgs`                       | `[]`                   | Additional command line arguments to pass to podinfo container                                                         |
 | `hpa.enabled`                     | `false`                | Enables the Kubernetes HPA                                                                                             |
 | `hpa.maxReplicas`                 | `10`                   | Maximum amount of pods                                                                                                 |
 | `hpa.cpu`                         | `None`                 | Target CPU usage per pod                                                                                               |
@@ -88,12 +92,13 @@ The following tables lists the configurable parameters of the podinfo chart and
 | `serviceAccount.name`             | `None`                 | The name of the service account to use, if not set and create is true, a name is generated using the fullname template |
 | `serviceAccount.imagePullSecrets` | `[]`                   | List of image pull secrets if pulling from private registries.                                                         |
 | `securityContext`                 | `{}`                   | The security context to be set on the podinfo container                                                                |
+| `podSecurityContext`              | `{}`                   | The security context to be set on the pod                                                                              |
 | `linkerd.profile.enabled`         | `false`                | Create Linkerd service profile                                                                                         |
 | `serviceMonitor.enabled`          | `false`                | Whether a Prometheus Operator service monitor should be created                                                        |
 | `serviceMonitor.interval`         | `15s`                  | Prometheus scraping interval                                                                                           |
 | `serviceMonitor.additionalLabels` | `{}`                   | Add additional labels to the service monitor                                                                           |
 | `ingress.enabled`                 | `false`                | Enables Ingress                                                                                                        |
-| `ingress.className `              | `""`                   | Use ingressClassName                                                                                                   |
+| `ingress.className`               | `""`                    | Use ingressClassName                                                                                                  |
 | `ingress.additionalLabels`        | `{}`                   | Add additional labels to the ingress                                                                                   |
 | `ingress.annotations`             | `{}`                   | Ingress annotations                                                                                                    |
 | `ingress.hosts`                   | `[]`                   | Ingress accepted hosts                                                                                                 |

charts/podinfo/templates/NOTES.txt

@@ -6,15 +6,15 @@
   {{- end }}
 {{- 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}")
+  export NODE_PORT=$(kubectl get --namespace {{ include "podinfo.namespace" . }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "podinfo.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ include "podinfo.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=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "podinfo.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  export SERVICE_IP=$(kubectl get svc --namespace {{ include "podinfo.namespace" . }} {{ template "podinfo.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
   echo http://$SERVICE_IP:{{ .Values.service.externalPort }}
 {{- else if contains "ClusterIP" .Values.service.type }}
   echo "Visit http://127.0.0.1:8080 to use your application"
-  kubectl -n {{ .Release.Namespace }} port-forward deploy/{{ template "podinfo.fullname" . }} 8080:{{ .Values.service.externalPort }}
+  kubectl -n {{ include "podinfo.namespace" . }} port-forward deploy/{{ template "podinfo.fullname" . }} 8080:{{ .Values.service.externalPort }}
 {{- end }}

charts/podinfo/templates/_helpers.tpl

@@ -23,6 +23,13 @@ If release name contains chart name it will be used as a full name.
 {{- end }}
 {{- end }}
 
+{{/*
+Allow the release namespace to be overridden for multi-namespace deployments in combined charts.
+*/}}
+{{- define "podinfo.namespace" -}}
+{{- default .Release.Namespace .Values.namespaceOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
 {{/*
 Create chart name and version as used by the chart label.
 */}}

charts/podinfo/templates/certificate.yaml

@@ -3,6 +3,7 @@ apiVersion: cert-manager.io/v1
 kind: Certificate
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
 spec:

charts/podinfo/templates/deployment.yaml

@@ -2,6 +2,7 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
 spec:
@@ -87,6 +88,15 @@ spec:
             {{- if .Values.h2c.enabled }}
             - --h2c
             {{- end }}
+            {{- with .Values.config.path }}
+            - --config-path={{ . }}
+            {{- end }}
+            {{- with .Values.config.name }}
+            - --config={{ . }}
+            {{- end }}
+            {{- with .Values.extraArgs }}
+              {{- toYaml . | nindent 12 }}
+            {{- end }}
           env:
           {{- if .Values.ui.message }}
           - name: PODINFO_UI_MESSAGE
@@ -104,6 +114,9 @@ spec:
           - name: PODINFO_BACKEND_URL
             value: {{ .Values.backend }}
           {{- end }}
+          {{- if .Values.extraEnvs }}
+{{ toYaml .Values.extraEnvs | indent 10 }}
+          {{- end }}
           ports:
             - name: http
               containerPort: {{ .Values.service.httpPort | default 9898 }}
@@ -183,6 +196,10 @@ spec:
           {{- end }}
           resources:
 {{ toYaml .Values.resources | indent 12 }}
+    {{- with .Values.podSecurityContext }}
+      securityContext:
+{{ toYaml . | indent 8 }}
+    {{- end }}
     {{- with .Values.nodeSelector }}
       nodeSelector:
 {{ toYaml . | indent 8 }}
@@ -203,3 +220,7 @@ spec:
         secret:
           secretName: {{ template "podinfo.tlsSecretName" . }}
       {{- end }}
+    {{- with .Values.topologySpreadConstraints }}
+      topologySpreadConstraints:
+{{- toYaml . | nindent 8 }}
+    {{- end }}

charts/podinfo/templates/hpa.yaml

@@ -3,6 +3,7 @@ apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}  
 spec:

charts/podinfo/templates/ingress.yaml

@@ -5,6 +5,7 @@ apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: {{ $fullName }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
     {{- with .Values.ingress.additionalLabels }}

charts/podinfo/templates/linkerd.yaml

@@ -2,7 +2,8 @@
 apiVersion: linkerd.io/v1alpha2
 kind: ServiceProfile
 metadata:
-  name: {{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
+  name: {{ template "podinfo.fullname" . }}.{{ include "podinfo.namespace" . }}.svc.cluster.local
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}  
 spec:

charts/podinfo/templates/pdb.yaml

@@ -0,0 +1,14 @@
+{{- if and .Values.podDisruptionBudget (gt (int .Values.replicaCount) 1) }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
+  labels:
+    {{- include "podinfo.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "podinfo.selectorLabels" . | nindent 6 }}
+  {{- toYaml .Values.podDisruptionBudget | nindent 2 }}
+{{- end }}

charts/podinfo/templates/service.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
 {{- with .Values.service.annotations }}

charts/podinfo/templates/servicemonitor.yaml

@@ -3,6 +3,7 @@ apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
     {{- with .Values.serviceMonitor.additionalLabels }}
@@ -15,7 +16,7 @@ spec:
       interval: {{ .Values.serviceMonitor.interval }}
   namespaceSelector:
     matchNames:
-      - {{ .Release.Namespace }}
+      - {{ include "podinfo.namespace" . }}
   selector:
     matchLabels:
       {{- include "podinfo.selectorLabels" . | nindent 6 }}

charts/podinfo/templates/tests/cache.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-cache-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
@@ -24,6 +25,6 @@ spec:
           curl -s -XDELETE ${PODINFO_SVC}/cache/test
       env:
       - name: PODINFO_SVC
-        value: "{{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.service.externalPort }}"
+        value: "{{ template "podinfo.fullname" . }}.{{ include "podinfo.namespace" . }}:{{ .Values.service.externalPort }}"
   restartPolicy: Never
 {{- end }}

charts/podinfo/templates/tests/fail.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-fault-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:

charts/podinfo/templates/tests/grpc.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-grpc-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
@@ -15,5 +16,5 @@ spec:
     - 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 }}']
+      args:  ['-addr={{ template "podinfo.fullname" . }}.{{ include "podinfo.namespace" . }}:{{ .Values.service.grpcPort }}']
   restartPolicy: Never

charts/podinfo/templates/tests/jwt.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-jwt-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
@@ -22,5 +23,5 @@ spec:
           curl -sH "Authorization: Bearer ${TOKEN}" ${PODINFO_SVC}/token/validate | grep test
       env:
       - name: PODINFO_SVC
-        value: "{{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.service.externalPort }}"
+        value: "{{ template "podinfo.fullname" . }}.{{ include "podinfo.namespace" . }}:{{ .Values.service.externalPort }}"
   restartPolicy: Never

charts/podinfo/templates/tests/service.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-service-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
@@ -21,5 +22,5 @@ spec:
           curl -s ${PODINFO_SVC}/api/info | grep version
       env:
         - name: PODINFO_SVC
-          value: "{{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.service.externalPort }}"
+          value: "{{ template "podinfo.fullname" . }}.{{ include "podinfo.namespace" . }}:{{ .Values.service.externalPort }}"
   restartPolicy: Never

charts/podinfo/templates/tests/timeout.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-fault-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:

charts/podinfo/templates/tests/tls.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-tls-test-{{ randAlphaNum 5 | lower }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
@@ -22,6 +23,6 @@ spec:
           curl -sk ${PODINFO_SVC}/api/info | grep version
       env:
         - name: PODINFO_SVC
-          value: "https://{{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.tls.port }}"
+          value: "https://{{ template "podinfo.fullname" . }}.{{ include "podinfo.namespace" . }}:{{ .Values.tls.port }}"
   restartPolicy: Never
 {{- end }}

charts/podinfo/values-prod.yaml

@@ -8,7 +8,7 @@ backends: []
 
 image:
   repository: ghcr.io/stefanprodan/podinfo
-  tag: 6.5.4
+  tag: 6.9.1
   pullPolicy: IfNotPresent
 
 ui:
@@ -41,6 +41,16 @@ service:
 h2c:
   enabled: false
 
+# config file settings
+config:
+  # config file path
+  path: ""
+  # config file name
+  name: ""
+
+# Additional command line arguments to pass to podinfo container
+extraArgs: []
+
 # enable tls on the podinfo service
 tls:
   enabled: false
@@ -97,6 +107,9 @@ serviceAccount:
 # set container security context
 securityContext: {}
 
+# set pod security context
+podSecurityContext: {}
+
 ingress:
   enabled: false
   className: ""
@@ -131,6 +144,14 @@ resources:
     cpu: 100m
     memory: 64Mi
 
+# Extra environment variables for the podinfo container
+extraEnvs: []
+# Example on how to configure extraEnvs
+#  - name: OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+#    value: "http://otel:4317"
+#  - name: MULTIPLE_VALUES
+#    value: TEST
+
 nodeSelector: {}
 
 tolerations: []

charts/podinfo/values.yaml

@@ -8,7 +8,7 @@ backends: []
 
 image:
   repository: ghcr.io/stefanprodan/podinfo
-  tag: 6.5.4
+  tag: 6.9.1
   pullPolicy: IfNotPresent
 
 ui:
@@ -45,6 +45,16 @@ service:
 h2c:
   enabled: false
 
+# config file settings
+config:
+  # config file path
+  path: ""
+  # config file name
+  name: ""
+
+# Additional command line arguments to pass to podinfo container
+extraArgs: []
+
 # enable tls on the podinfo service
 tls:
   enabled: false
@@ -101,6 +111,9 @@ serviceAccount:
 # set container security context
 securityContext: {}
 
+# set pod security context
+podSecurityContext: {}
+
 ingress:
   enabled: false
   className: ""
@@ -134,6 +147,14 @@ resources:
     cpu: 1m
     memory: 16Mi
 
+# Extra environment variables for the podinfo container
+extraEnvs: []
+# Example on how to configure extraEnvs
+#  - name: OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
+#    value: "http://otel:4317"
+#  - name: MULTIPLE_VALUES
+#    value: TEST
+
 nodeSelector: {}
 
 tolerations: []
@@ -142,6 +163,13 @@ affinity: {}
 
 podAnnotations: {}
 
+# https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/
+topologySpreadConstraints: []
+
+# Disruption budget will be configured only when the replicaCount is greater than 1
+podDisruptionBudget: {}
+#  maxUnavailable: 1
+
 # https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
 probes:
   readiness:

cmd/podinfo/main.go

@@ -13,8 +13,8 @@ import (
 	"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/api/grpc"
+	"github.com/stefanprodan/podinfo/pkg/api/http"
 	"github.com/stefanprodan/podinfo/pkg/signals"
 	"github.com/stefanprodan/podinfo/pkg/version"
 	go_grpc "google.golang.org/grpc"
@@ -138,11 +138,13 @@ func main() {
 	var grpcServer *go_grpc.Server
 	if grpcCfg.Port > 0 {
 		grpcSrv, _ := grpc.NewServer(&grpcCfg, logger)
+		//grpcinfoSrv, _ := grpc.NewInfoServer(&grpcCfg)
+
 		grpcServer = grpcSrv.ListenAndServe()
 	}
 
 	// load HTTP server config
-	var srvCfg api.Config
+	var srvCfg http.Config
 	if err := viper.Unmarshal(&srvCfg); err != nil {
 		logger.Panic("config unmarshal failed", zap.Error(err))
 	}
@@ -155,7 +157,7 @@ func main() {
 	)
 
 	// start HTTP server
-	srv, _ := api.NewServer(&srvCfg, logger)
+	srv, _ := http.NewServer(&srvCfg, logger)
 	httpServer, httpsServer, healthy, ready := srv.ListenAndServe()
 
 	// graceful shutdown

deploy/bases/backend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: backend
-        image: ghcr.io/stefanprodan/podinfo:6.5.4
+        image: ghcr.io/stefanprodan/podinfo:6.9.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http
@@ -42,7 +42,7 @@ spec:
         - --grpc-port=9999
         - --grpc-service-name=backend
         - --level=info
-        - --cache-server=cache:6379
+        - --cache-server=tcp://cache:6379
         env:
         - name: PODINFO_UI_COLOR
           value: "#34577c"

deploy/bases/frontend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: frontend
-        image: ghcr.io/stefanprodan/podinfo:6.5.4
+        image: ghcr.io/stefanprodan/podinfo:6.9.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http
@@ -41,7 +41,7 @@ spec:
         - --port-metrics=9797
         - --level=info
         - --backend-url=http://backend:9898/echo
-        - --cache-server=cache:6379
+        - --cache-server=tcp://cache:6379
         env:
         - name: PODINFO_UI_COLOR
           value: "#34577c"

deploy/webapp/backend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: backend
-        image: ghcr.io/stefanprodan/podinfo:6.5.4
+        image: ghcr.io/stefanprodan/podinfo:6.9.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/webapp/frontend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: frontend
-        image: ghcr.io/stefanprodan/podinfo:6.5.4
+        image: ghcr.io/stefanprodan/podinfo:6.9.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

go.mod

@@ -1,89 +1,81 @@
 module github.com/stefanprodan/podinfo
 
-go 1.21
+go 1.24
 
 require (
 	github.com/chzyer/readline v1.5.1
-	github.com/fatih/color v1.16.0
-	github.com/fsnotify/fsnotify v1.7.0
-	github.com/golang-jwt/jwt/v4 v4.5.0
-	github.com/gomodule/redigo v1.8.9
+	github.com/fatih/color v1.18.0
+	github.com/fsnotify/fsnotify v1.9.0
+	github.com/golang-jwt/jwt/v4 v4.5.2
+	github.com/gomodule/redigo v1.9.2
 	github.com/gorilla/mux v1.8.1
-	github.com/gorilla/websocket v1.5.1
-	github.com/prometheus/client_golang v1.17.0
-	github.com/spf13/cobra v1.8.0
-	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.18.1
+	github.com/gorilla/websocket v1.5.3
+	github.com/prometheus/client_golang v1.22.0
+	github.com/spf13/cobra v1.9.1
+	github.com/spf13/pflag v1.0.6
+	github.com/spf13/viper v1.20.1
 	github.com/swaggo/http-swagger v1.3.4
-	github.com/swaggo/swag v1.16.2
-	go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux v0.46.1
-	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.46.1
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1
-	go.opentelemetry.io/contrib/propagators/aws v1.21.1
-	go.opentelemetry.io/contrib/propagators/b3 v1.21.1
-	go.opentelemetry.io/contrib/propagators/jaeger v1.21.1
-	go.opentelemetry.io/contrib/propagators/ot v1.21.1
-	go.opentelemetry.io/otel v1.21.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0
-	go.opentelemetry.io/otel/sdk v1.21.0
-	go.opentelemetry.io/otel/trace v1.21.0
-	go.uber.org/zap v1.26.0
-	golang.org/x/net v0.19.0
-	google.golang.org/grpc v1.60.0
+	github.com/swaggo/swag v1.16.4
+	go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux v0.62.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.62.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.62.0
+	go.opentelemetry.io/contrib/propagators/aws v1.37.0
+	go.opentelemetry.io/contrib/propagators/b3 v1.37.0
+	go.opentelemetry.io/contrib/propagators/jaeger v1.37.0
+	go.opentelemetry.io/contrib/propagators/ot v1.37.0
+	go.opentelemetry.io/otel v1.37.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.37.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.37.0
+	go.opentelemetry.io/otel/sdk v1.37.0
+	go.opentelemetry.io/otel/trace v1.37.0
+	go.uber.org/zap v1.27.0
+	golang.org/x/net v0.42.0
+	google.golang.org/grpc v1.73.0
+	google.golang.org/protobuf v1.36.6
 )
 
-// Fix CVE-2022-32149
-replace golang.org/x/text => golang.org/x/text v0.14.0
-
 // Fix CVE-2022-28948
 replace gopkg.in/yaml.v3 => gopkg.in/yaml.v3 v3.0.1
 
 require (
 	github.com/KyleBanks/depth v1.2.1 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.2 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
-	github.com/go-logr/logr v1.3.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-openapi/jsonpointer v0.19.5 // indirect
-	github.com/go-openapi/jsonreference v0.20.0 // indirect
-	github.com/go-openapi/spec v0.20.6 // indirect
-	github.com/go-openapi/swag v0.19.15 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 // indirect
-	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/go-openapi/jsonpointer v0.21.1 // indirect
+	github.com/go-openapi/jsonreference v0.21.0 // indirect
+	github.com/go-openapi/spec v0.21.0 // indirect
+	github.com/go-openapi/swag v0.23.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.3.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
-	github.com/magiconair/properties v1.8.7 // indirect
-	github.com/mailru/easyjson v0.7.6 // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mailru/easyjson v0.9.0 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
-	github.com/mitchellh/mapstructure v1.5.0 // indirect
-	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
-	github.com/prometheus/client_model v0.4.1-0.20230718164431-9a2bf3000d16 // indirect
-	github.com/prometheus/common v0.44.0 // indirect
-	github.com/prometheus/procfs v0.11.1 // indirect
-	github.com/sagikazarmark/locafero v0.4.0 // indirect
-	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/common v0.62.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/sagikazarmark/locafero v0.9.0 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
-	github.com/spf13/afero v1.11.0 // indirect
-	github.com/spf13/cast v1.6.0 // indirect
+	github.com/spf13/afero v1.14.0 // indirect
+	github.com/spf13/cast v1.9.2 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
-	github.com/swaggo/files v0.0.0-20220610200504-28940afbdbfe // indirect
-	go.opentelemetry.io/otel/metric v1.21.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
+	github.com/swaggo/files v1.0.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel/metric v1.37.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.7.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
-	golang.org/x/sys v0.15.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	golang.org/x/tools v0.13.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20231106174013-bbf56f31fb17 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
-	gopkg.in/ini.v1 v1.67.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/text v0.27.0 // indirect
+	golang.org/x/tools v0.35.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250603155806-513f23925822 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -2,242 +2,208 @@ github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc
 github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
-github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cenkalti/backoff/v5 v5.0.2 h1:rIfFVxEf1QsI7E1ZHfp/B4DF/6QBAUhmgkxc0H7Zss8=
+github.com/cenkalti/backoff/v5 v5.0.2/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.2.1 h1:XHDu3E6q+gdHgsdTPH6ImJMIp436vR6MPtH8gP05QzM=
 github.com/chzyer/logex v1.2.1/go.mod h1:JLbx6lG2kDbNRFnfkgvh4eRJRPX1QCoOIWomwysCBrQ=
 github.com/chzyer/readline v1.5.1 h1:upd/6fQk4src78LMRzh5vItIt361/o4uq553V8B5sGI=
 github.com/chzyer/readline v1.5.1/go.mod h1:Eh+b79XXUwfKfcPLepksvw2tcLE/Ct21YObkaSkeBlk=
 github.com/chzyer/test v1.0.0 h1:p3BQDXSxOhOG0P9z6/hGnII4LGiEPOYBhs8asl/fC04=
 github.com/chzyer/test v1.0.0/go.mod h1:2JlltgoNkt4TW/z9V/IzDdFaMTM2JPIi26O1pF38GC8=
-github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
-github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
-github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
+github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
+github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
-github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
-github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
+github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-logr/logr v1.3.0 h1:2y3SDp0ZXuc6/cjLSZ+Q3ir+QB9T/iG5yYRXqsagWSY=
-github.com/go-logr/logr v1.3.0/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
-github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
-github.com/go-openapi/jsonpointer v0.19.5 h1:gZr+CIYByUqjcgeLXnQu2gHYQC9o73G2XUeOFYEICuY=
-github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
-github.com/go-openapi/jsonreference v0.20.0 h1:MYlu0sBgChmCfJxxUKZ8g1cPWFOB37YSZqewK7OKeyA=
-github.com/go-openapi/jsonreference v0.20.0/go.mod h1:Ag74Ico3lPc+zR+qjn4XBUmXymS4zJbYVCZmcgkasdo=
-github.com/go-openapi/spec v0.20.6 h1:ich1RQ3WDbfoeTqTAb+5EIxNmpKVJZWBNah9RAT0jIQ=
-github.com/go-openapi/spec v0.20.6/go.mod h1:2OpW+JddWPrpXSCIX8eOx7lZ5iyuWj3RYR6VaaBKcWA=
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-github.com/golang-jwt/jwt/v4 v4.5.0 h1:7cYmW1XlMY7h7ii7UhUyChSgS5wUJEnm9uZVTGqOWzg=
-github.com/golang-jwt/jwt/v4 v4.5.0/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
-github.com/golang/glog v1.1.2 h1:DVjP2PbBOzHyzA+dn3WhHIq4NdVu3Q+pvivFICf/7fo=
-github.com/golang/glog v1.1.2/go.mod h1:zR+okUeTbrL6EL3xHUDxZuEtGv04p5shwip1+mL/rLQ=
-github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
-github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/gomodule/redigo v1.8.9 h1:Sl3u+2BI/kk+VEatbj0scLdrFhjPmbxOc1myhDP41ws=
-github.com/gomodule/redigo v1.8.9/go.mod h1:7ArFNvsTjH8GMMzB4uy1snslv2BwmginuMs06a1uzZE=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
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+github.com/go-openapi/jsonreference v0.21.0/go.mod h1:LmZmgsrTkVg9LG4EaHeY8cBDslNPMo06cago5JNLkm4=
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+github.com/golang-jwt/jwt/v4 v4.5.2 h1:YtQM7lnr8iZ+j5q71MGKkNw9Mn7AjHM68uc9g5fXeUI=
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+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.1/go.mod h1:Zanoh4+gvIgluNqcfMVTJueD4wSS5hT7zTt4Mrutd90=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
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+google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
-gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
-gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

kustomize/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: podinfod
-        image: ghcr.io/stefanprodan/podinfo:6.5.4
+        image: ghcr.io/stefanprodan/podinfo:6.9.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http
@@ -72,3 +72,9 @@ spec:
           requests:
             cpu: 100m
             memory: 64Mi
+        volumeMounts:
+          - name: data
+            mountPath: /data
+      volumes:
+        - name: data
+          emptyDir: {}

kustomize/kustomization.yaml

@@ -4,4 +4,3 @@ resources:
   - hpa.yaml
   - deployment.yaml
   - service.yaml
-

pkg/api/grpc/delay.go

@@ -0,0 +1,21 @@
+package grpc
+
+import (
+	"context"
+	"time"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/delay"
+	"go.uber.org/zap"
+)
+
+type DelayServer struct {
+	pb.UnimplementedDelayServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *DelayServer) Delay(ctx context.Context, delayInput *pb.DelayRequest) (*pb.DelayResponse, error) {
+
+	time.Sleep(time.Duration(delayInput.Seconds) * time.Second)
+	return &pb.DelayResponse{Message: delayInput.Seconds}, nil
+}

pkg/api/grpc/delay/delay.pb.go

@@ -0,0 +1,211 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.25.0
+// source: delay/delay.proto
+
+package delay
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type DelayRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"`
+}
+
+func (x *DelayRequest) Reset() {
+	*x = DelayRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_delay_delay_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DelayRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DelayRequest) ProtoMessage() {}
+
+func (x *DelayRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_delay_delay_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DelayRequest.ProtoReflect.Descriptor instead.
+func (*DelayRequest) Descriptor() ([]byte, []int) {
+	return file_delay_delay_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *DelayRequest) GetSeconds() int64 {
+	if x != nil {
+		return x.Seconds
+	}
+	return 0
+}
+
+type DelayResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Message int64 `protobuf:"varint,1,opt,name=message,proto3" json:"message,omitempty"`
+}
+
+func (x *DelayResponse) Reset() {
+	*x = DelayResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_delay_delay_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DelayResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DelayResponse) ProtoMessage() {}
+
+func (x *DelayResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_delay_delay_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DelayResponse.ProtoReflect.Descriptor instead.
+func (*DelayResponse) Descriptor() ([]byte, []int) {
+	return file_delay_delay_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *DelayResponse) GetMessage() int64 {
+	if x != nil {
+		return x.Message
+	}
+	return 0
+}
+
+var File_delay_delay_proto protoreflect.FileDescriptor
+
+var file_delay_delay_proto_rawDesc = []byte{
+	0x0a, 0x11, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x2f, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x2e, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x12, 0x05, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x22, 0x28, 0x0a, 0x0c, 0x44, 0x65,
+	0x6c, 0x61, 0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x18, 0x0a, 0x07, 0x73, 0x65,
+	0x63, 0x6f, 0x6e, 0x64, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07, 0x73, 0x65, 0x63,
+	0x6f, 0x6e, 0x64, 0x73, 0x22, 0x29, 0x0a, 0x0d, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x03, 0x52, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x32,
+	0x44, 0x0a, 0x0c, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12,
+	0x34, 0x0a, 0x05, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x12, 0x13, 0x2e, 0x64, 0x65, 0x6c, 0x61, 0x79,
+	0x2e, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x14, 0x2e,
+	0x64, 0x65, 0x6c, 0x61, 0x79, 0x2e, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x2f, 0x64, 0x65, 0x6c, 0x61, 0x79,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_delay_delay_proto_rawDescOnce sync.Once
+	file_delay_delay_proto_rawDescData = file_delay_delay_proto_rawDesc
+)
+
+func file_delay_delay_proto_rawDescGZIP() []byte {
+	file_delay_delay_proto_rawDescOnce.Do(func() {
+		file_delay_delay_proto_rawDescData = protoimpl.X.CompressGZIP(file_delay_delay_proto_rawDescData)
+	})
+	return file_delay_delay_proto_rawDescData
+}
+
+var file_delay_delay_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_delay_delay_proto_goTypes = []interface{}{
+	(*DelayRequest)(nil),  // 0: delay.DelayRequest
+	(*DelayResponse)(nil), // 1: delay.DelayResponse
+}
+var file_delay_delay_proto_depIdxs = []int32{
+	0, // 0: delay.DelayService.Delay:input_type -> delay.DelayRequest
+	1, // 1: delay.DelayService.Delay:output_type -> delay.DelayResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_delay_delay_proto_init() }
+func file_delay_delay_proto_init() {
+	if File_delay_delay_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_delay_delay_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*DelayRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_delay_delay_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*DelayResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_delay_delay_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_delay_delay_proto_goTypes,
+		DependencyIndexes: file_delay_delay_proto_depIdxs,
+		MessageInfos:      file_delay_delay_proto_msgTypes,
+	}.Build()
+	File_delay_delay_proto = out.File
+	file_delay_delay_proto_rawDesc = nil
+	file_delay_delay_proto_goTypes = nil
+	file_delay_delay_proto_depIdxs = nil
+}

pkg/api/grpc/delay/delay.proto

@@ -0,0 +1,17 @@
+syntax = "proto3";
+
+option go_package = "./delay";
+
+package delay;
+
+message DelayRequest {
+    int64 seconds = 1;
+}
+
+message DelayResponse {
+    int64 message = 1;
+}
+
+service DelayService {
+    rpc Delay (DelayRequest) returns (DelayResponse) {}
+}

pkg/api/grpc/delay/delay_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v4.25.0
+// source: delay/delay.proto
+
+package delay
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// DelayServiceClient is the client API for DelayService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type DelayServiceClient interface {
+	Delay(ctx context.Context, in *DelayRequest, opts ...grpc.CallOption) (*DelayResponse, error)
+}
+
+type delayServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewDelayServiceClient(cc grpc.ClientConnInterface) DelayServiceClient {
+	return &delayServiceClient{cc}
+}
+
+func (c *delayServiceClient) Delay(ctx context.Context, in *DelayRequest, opts ...grpc.CallOption) (*DelayResponse, error) {
+	out := new(DelayResponse)
+	err := c.cc.Invoke(ctx, "/delay.DelayService/Delay", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// DelayServiceServer is the server API for DelayService service.
+// All implementations must embed UnimplementedDelayServiceServer
+// for forward compatibility
+type DelayServiceServer interface {
+	Delay(context.Context, *DelayRequest) (*DelayResponse, error)
+	mustEmbedUnimplementedDelayServiceServer()
+}
+
+// UnimplementedDelayServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedDelayServiceServer struct {
+}
+
+func (UnimplementedDelayServiceServer) Delay(context.Context, *DelayRequest) (*DelayResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Delay not implemented")
+}
+func (UnimplementedDelayServiceServer) mustEmbedUnimplementedDelayServiceServer() {}
+
+// UnsafeDelayServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to DelayServiceServer will
+// result in compilation errors.
+type UnsafeDelayServiceServer interface {
+	mustEmbedUnimplementedDelayServiceServer()
+}
+
+func RegisterDelayServiceServer(s grpc.ServiceRegistrar, srv DelayServiceServer) {
+	s.RegisterService(&DelayService_ServiceDesc, srv)
+}
+
+func _DelayService_Delay_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DelayRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DelayServiceServer).Delay(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/delay.DelayService/Delay",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DelayServiceServer).Delay(ctx, req.(*DelayRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// DelayService_ServiceDesc is the grpc.ServiceDesc for DelayService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var DelayService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "delay.DelayService",
+	HandlerType: (*DelayServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Delay",
+			Handler:    _DelayService_Delay_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "delay/delay.proto",
+}

pkg/api/grpc/delay_test.go

@@ -0,0 +1,75 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net"
+	"regexp"
+	"strconv"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/delay"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcDelay(t *testing.T) {
+
+	// Server initialization
+	// bufconn => uses in-memory connection instead of system network I/O
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	delay.RegisterDelayServiceServer(srv, &DelayServer{})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	// - Test
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := delay.NewDelayServiceClient(conn)
+	res, err := client.Delay(context.Background(), &delay.DelayRequest{Seconds: 3})
+
+	// Check the status code is what we expect.
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Delay returned type %T, want %T", err, status.Error)
+	}
+
+	if res != nil {
+		fmt.Printf("res %v\n", res)
+	}
+
+	// Check the response body is what we expect. Here we expect the response to be "3" as the delay is set to 3 seconds.
+	expected := "3"
+	r := regexp.MustCompile(expected)
+	if !r.MatchString(strconv.FormatInt(res.Message, 10)) {
+		t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+			res.Message, expected)
+	}
+}

pkg/api/grpc/echo.go

@@ -0,0 +1,20 @@
+package grpc
+
+import (
+	"context"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/echo"
+	"go.uber.org/zap"
+)
+
+type echoServer struct {
+	echo.UnimplementedEchoServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *echoServer) Echo(ctx context.Context, message *echo.Message) (*echo.Message, error) {
+
+	s.logger.Info("Received message body from client:", zap.String("input body", message.Body))
+	return &echo.Message{Body: message.Body}, nil
+}

pkg/api/grpc/echo/echo.pb.go

@@ -0,0 +1,146 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v4.24.3
+// source: echo/echo.proto
+
+package echo
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Message struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Body string `protobuf:"bytes,1,opt,name=body,proto3" json:"body,omitempty"`
+}
+
+func (x *Message) Reset() {
+	*x = Message{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_echo_echo_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message) ProtoMessage() {}
+
+func (x *Message) ProtoReflect() protoreflect.Message {
+	mi := &file_echo_echo_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Message.ProtoReflect.Descriptor instead.
+func (*Message) Descriptor() ([]byte, []int) {
+	return file_echo_echo_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Message) GetBody() string {
+	if x != nil {
+		return x.Body
+	}
+	return ""
+}
+
+var File_echo_echo_proto protoreflect.FileDescriptor
+
+var file_echo_echo_proto_rawDesc = []byte{
+	0x0a, 0x0f, 0x65, 0x63, 0x68, 0x6f, 0x2f, 0x65, 0x63, 0x68, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x12, 0x04, 0x65, 0x63, 0x68, 0x6f, 0x22, 0x1d, 0x0a, 0x07, 0x4d, 0x65, 0x73, 0x73, 0x61,
+	0x67, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x62, 0x6f, 0x64, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x04, 0x62, 0x6f, 0x64, 0x79, 0x32, 0x35, 0x0a, 0x0b, 0x45, 0x63, 0x68, 0x6f, 0x53, 0x65,
+	0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x26, 0x0a, 0x04, 0x45, 0x63, 0x68, 0x6f, 0x12, 0x0d, 0x2e,
+	0x65, 0x63, 0x68, 0x6f, 0x2e, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x1a, 0x0d, 0x2e, 0x65,
+	0x63, 0x68, 0x6f, 0x2e, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x22, 0x00, 0x42, 0x08, 0x5a,
+	0x06, 0x2e, 0x2f, 0x65, 0x63, 0x68, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_echo_echo_proto_rawDescOnce sync.Once
+	file_echo_echo_proto_rawDescData = file_echo_echo_proto_rawDesc
+)
+
+func file_echo_echo_proto_rawDescGZIP() []byte {
+	file_echo_echo_proto_rawDescOnce.Do(func() {
+		file_echo_echo_proto_rawDescData = protoimpl.X.CompressGZIP(file_echo_echo_proto_rawDescData)
+	})
+	return file_echo_echo_proto_rawDescData
+}
+
+var file_echo_echo_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_echo_echo_proto_goTypes = []interface{}{
+	(*Message)(nil), // 0: echo.Message
+}
+var file_echo_echo_proto_depIdxs = []int32{
+	0, // 0: echo.EchoService.Echo:input_type -> echo.Message
+	0, // 1: echo.EchoService.Echo:output_type -> echo.Message
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_echo_echo_proto_init() }
+func file_echo_echo_proto_init() {
+	if File_echo_echo_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_echo_echo_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_echo_echo_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_echo_echo_proto_goTypes,
+		DependencyIndexes: file_echo_echo_proto_depIdxs,
+		MessageInfos:      file_echo_echo_proto_msgTypes,
+	}.Build()
+	File_echo_echo_proto = out.File
+	file_echo_echo_proto_rawDesc = nil
+	file_echo_echo_proto_goTypes = nil
+	file_echo_echo_proto_depIdxs = nil
+}

pkg/api/grpc/echo/echo.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+option go_package = "./echo";
+
+package echo;
+
+message Message {
+    string body = 1;
+}
+
+
+service EchoService {
+    rpc Echo(Message) returns (Message) {}
+}

pkg/api/grpc/echo/echo_grpc.pb.go

@@ -0,0 +1,109 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.3.0
+// - protoc             v4.24.3
+// source: echo/echo.proto
+
+package echo
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+const (
+	EchoService_Echo_FullMethodName = "/echo.EchoService/Echo"
+)
+
+// EchoServiceClient is the client API for EchoService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type EchoServiceClient interface {
+	Echo(ctx context.Context, in *Message, opts ...grpc.CallOption) (*Message, error)
+}
+
+type echoServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewEchoServiceClient(cc grpc.ClientConnInterface) EchoServiceClient {
+	return &echoServiceClient{cc}
+}
+
+func (c *echoServiceClient) Echo(ctx context.Context, in *Message, opts ...grpc.CallOption) (*Message, error) {
+	out := new(Message)
+	err := c.cc.Invoke(ctx, EchoService_Echo_FullMethodName, in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// EchoServiceServer is the server API for EchoService service.
+// All implementations must embed UnimplementedEchoServiceServer
+// for forward compatibility
+type EchoServiceServer interface {
+	Echo(context.Context, *Message) (*Message, error)
+	mustEmbedUnimplementedEchoServiceServer()
+}
+
+// UnimplementedEchoServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedEchoServiceServer struct {
+}
+
+func (UnimplementedEchoServiceServer) Echo(context.Context, *Message) (*Message, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Echo not implemented")
+}
+func (UnimplementedEchoServiceServer) mustEmbedUnimplementedEchoServiceServer() {}
+
+// UnsafeEchoServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to EchoServiceServer will
+// result in compilation errors.
+type UnsafeEchoServiceServer interface {
+	mustEmbedUnimplementedEchoServiceServer()
+}
+
+func RegisterEchoServiceServer(s grpc.ServiceRegistrar, srv EchoServiceServer) {
+	s.RegisterService(&EchoService_ServiceDesc, srv)
+}
+
+func _EchoService_Echo_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Message)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(EchoServiceServer).Echo(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: EchoService_Echo_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(EchoServiceServer).Echo(ctx, req.(*Message))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// EchoService_ServiceDesc is the grpc.ServiceDesc for EchoService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var EchoService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "echo.EchoService",
+	HandlerType: (*EchoServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Echo",
+			Handler:    _EchoService_Echo_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "echo/echo.proto",
+}

pkg/api/grpc/echo_test.go

@@ -0,0 +1,65 @@
+package grpc
+
+import (
+	"context"
+	"log"
+	"net"
+	"regexp"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/echo"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcEcho(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	s := NewMockGrpcServer()
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	echo.RegisterEchoServiceServer(srv, &echoServer{config: s.config, logger: s.logger})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := echo.NewEchoServiceClient(conn)
+	res, err := client.Echo(context.Background(), &echo.Message{Body: "test123-test"})
+
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Echo returned type %T, want %T", err, status.Error)
+	}
+
+	expected := ".*body.*test123-test.*"
+	r := regexp.MustCompile(expected)
+	if !r.MatchString(res.String()) {
+		t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+			res, expected)
+	}
+}

pkg/api/grpc/env.go

@@ -0,0 +1,19 @@
+package grpc
+
+import (
+	"context"
+	"go.uber.org/zap"
+	"os"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/env"
+)
+
+type EnvServer struct {
+	pb.UnimplementedEnvServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *EnvServer) Env(ctx context.Context, envInput *pb.EnvRequest) (*pb.EnvResponse, error) {
+	return &pb.EnvResponse{EnvVars: os.Environ()}, nil
+}

pkg/api/grpc/env/env.pb.go

@@ -0,0 +1,199 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.25.0
+// source: env/env.proto
+
+package env
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type EnvRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *EnvRequest) Reset() {
+	*x = EnvRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_env_env_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *EnvRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*EnvRequest) ProtoMessage() {}
+
+func (x *EnvRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_env_env_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use EnvRequest.ProtoReflect.Descriptor instead.
+func (*EnvRequest) Descriptor() ([]byte, []int) {
+	return file_env_env_proto_rawDescGZIP(), []int{0}
+}
+
+type EnvResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	EnvVars []string `protobuf:"bytes,1,rep,name=envVars,proto3" json:"envVars,omitempty"`
+}
+
+func (x *EnvResponse) Reset() {
+	*x = EnvResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_env_env_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *EnvResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*EnvResponse) ProtoMessage() {}
+
+func (x *EnvResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_env_env_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use EnvResponse.ProtoReflect.Descriptor instead.
+func (*EnvResponse) Descriptor() ([]byte, []int) {
+	return file_env_env_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *EnvResponse) GetEnvVars() []string {
+	if x != nil {
+		return x.EnvVars
+	}
+	return nil
+}
+
+var File_env_env_proto protoreflect.FileDescriptor
+
+var file_env_env_proto_rawDesc = []byte{
+	0x0a, 0x0d, 0x65, 0x6e, 0x76, 0x2f, 0x65, 0x6e, 0x76, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
+	0x03, 0x65, 0x6e, 0x76, 0x22, 0x0c, 0x0a, 0x0a, 0x45, 0x6e, 0x76, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x22, 0x27, 0x0a, 0x0b, 0x45, 0x6e, 0x76, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x76, 0x56, 0x61, 0x72, 0x73, 0x18, 0x01, 0x20, 0x03,
+	0x28, 0x09, 0x52, 0x07, 0x65, 0x6e, 0x76, 0x56, 0x61, 0x72, 0x73, 0x32, 0x38, 0x0a, 0x0a, 0x45,
+	0x6e, 0x76, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x2a, 0x0a, 0x03, 0x45, 0x6e, 0x76,
+	0x12, 0x0f, 0x2e, 0x65, 0x6e, 0x76, 0x2e, 0x45, 0x6e, 0x76, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x1a, 0x10, 0x2e, 0x65, 0x6e, 0x76, 0x2e, 0x45, 0x6e, 0x76, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x07, 0x5a, 0x05, 0x2e, 0x2f, 0x65, 0x6e, 0x76, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_env_env_proto_rawDescOnce sync.Once
+	file_env_env_proto_rawDescData = file_env_env_proto_rawDesc
+)
+
+func file_env_env_proto_rawDescGZIP() []byte {
+	file_env_env_proto_rawDescOnce.Do(func() {
+		file_env_env_proto_rawDescData = protoimpl.X.CompressGZIP(file_env_env_proto_rawDescData)
+	})
+	return file_env_env_proto_rawDescData
+}
+
+var file_env_env_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_env_env_proto_goTypes = []interface{}{
+	(*EnvRequest)(nil),  // 0: env.EnvRequest
+	(*EnvResponse)(nil), // 1: env.EnvResponse
+}
+var file_env_env_proto_depIdxs = []int32{
+	0, // 0: env.EnvService.Env:input_type -> env.EnvRequest
+	1, // 1: env.EnvService.Env:output_type -> env.EnvResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_env_env_proto_init() }
+func file_env_env_proto_init() {
+	if File_env_env_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_env_env_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*EnvRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_env_env_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*EnvResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_env_env_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_env_env_proto_goTypes,
+		DependencyIndexes: file_env_env_proto_depIdxs,
+		MessageInfos:      file_env_env_proto_msgTypes,
+	}.Build()
+	File_env_env_proto = out.File
+	file_env_env_proto_rawDesc = nil
+	file_env_env_proto_goTypes = nil
+	file_env_env_proto_depIdxs = nil
+}

pkg/api/grpc/env/env.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+option go_package = "./env";
+
+package env;
+
+message EnvRequest {}
+
+message EnvResponse {
+    repeated string envVars = 1;
+}
+
+service EnvService {
+    rpc Env (EnvRequest) returns (EnvResponse) {}
+}

pkg/api/grpc/env/env_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v4.25.0
+// source: env/env.proto
+
+package env
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// EnvServiceClient is the client API for EnvService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type EnvServiceClient interface {
+	Env(ctx context.Context, in *EnvRequest, opts ...grpc.CallOption) (*EnvResponse, error)
+}
+
+type envServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewEnvServiceClient(cc grpc.ClientConnInterface) EnvServiceClient {
+	return &envServiceClient{cc}
+}
+
+func (c *envServiceClient) Env(ctx context.Context, in *EnvRequest, opts ...grpc.CallOption) (*EnvResponse, error) {
+	out := new(EnvResponse)
+	err := c.cc.Invoke(ctx, "/env.EnvService/Env", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// EnvServiceServer is the server API for EnvService service.
+// All implementations must embed UnimplementedEnvServiceServer
+// for forward compatibility
+type EnvServiceServer interface {
+	Env(context.Context, *EnvRequest) (*EnvResponse, error)
+	mustEmbedUnimplementedEnvServiceServer()
+}
+
+// UnimplementedEnvServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedEnvServiceServer struct {
+}
+
+func (UnimplementedEnvServiceServer) Env(context.Context, *EnvRequest) (*EnvResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Env not implemented")
+}
+func (UnimplementedEnvServiceServer) mustEmbedUnimplementedEnvServiceServer() {}
+
+// UnsafeEnvServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to EnvServiceServer will
+// result in compilation errors.
+type UnsafeEnvServiceServer interface {
+	mustEmbedUnimplementedEnvServiceServer()
+}
+
+func RegisterEnvServiceServer(s grpc.ServiceRegistrar, srv EnvServiceServer) {
+	s.RegisterService(&EnvService_ServiceDesc, srv)
+}
+
+func _EnvService_Env_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(EnvRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(EnvServiceServer).Env(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/env.EnvService/Env",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(EnvServiceServer).Env(ctx, req.(*EnvRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// EnvService_ServiceDesc is the grpc.ServiceDesc for EnvService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var EnvService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "env.EnvService",
+	HandlerType: (*EnvServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Env",
+			Handler:    _EnvService_Env_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "env/env.proto",
+}

pkg/api/grpc/env_test.go

@@ -0,0 +1,64 @@
+package grpc
+
+import (
+	"context"
+	"log"
+	"net"
+	"regexp"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/env"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcEnv(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	env.RegisterEnvServiceServer(srv, &EnvServer{})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := env.NewEnvServiceClient(conn)
+	res, err := client.Env(context.Background(), &env.EnvRequest{})
+
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Env returned type %T, want %T", err, status.Error)
+	}
+
+	expected := ".*PATH.*"
+	r := regexp.MustCompile(expected)
+	if !r.MatchString(res.String()) {
+		t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+			res, expected)
+	}
+}

pkg/api/grpc/headers.go

@@ -0,0 +1,34 @@
+package grpc
+
+import (
+	"context"
+	"strings"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/headers"
+	"go.uber.org/zap"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+type HeaderServer struct {
+	pb.UnimplementedHeaderServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *HeaderServer) Header(ctx context.Context, in *pb.HeaderRequest) (*pb.HeaderResponse, error) {
+	md, ok := metadata.FromIncomingContext(ctx)
+	if !ok {
+		return nil, status.Errorf(codes.DataLoss, "UnaryEcho: failed to get metadata")
+	}
+
+	// Creating slices beacause echoing the header metadata can't be predetermined by the proto contract
+	res := []string{}
+	for i, e := range md {
+		res = append(res, i+"="+strings.Join(e, ","))
+	}
+
+	return &pb.HeaderResponse{Headers: res}, nil
+
+}

pkg/api/grpc/headers/headers.pb.go

@@ -0,0 +1,201 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.25.0
+// source: headers/headers.proto
+
+package header
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type HeaderRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *HeaderRequest) Reset() {
+	*x = HeaderRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_headers_headers_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *HeaderRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HeaderRequest) ProtoMessage() {}
+
+func (x *HeaderRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_headers_headers_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HeaderRequest.ProtoReflect.Descriptor instead.
+func (*HeaderRequest) Descriptor() ([]byte, []int) {
+	return file_headers_headers_proto_rawDescGZIP(), []int{0}
+}
+
+type HeaderResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Headers []string `protobuf:"bytes,1,rep,name=headers,proto3" json:"headers,omitempty"`
+}
+
+func (x *HeaderResponse) Reset() {
+	*x = HeaderResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_headers_headers_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *HeaderResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HeaderResponse) ProtoMessage() {}
+
+func (x *HeaderResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_headers_headers_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HeaderResponse.ProtoReflect.Descriptor instead.
+func (*HeaderResponse) Descriptor() ([]byte, []int) {
+	return file_headers_headers_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *HeaderResponse) GetHeaders() []string {
+	if x != nil {
+		return x.Headers
+	}
+	return nil
+}
+
+var File_headers_headers_proto protoreflect.FileDescriptor
+
+var file_headers_headers_proto_rawDesc = []byte{
+	0x0a, 0x15, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x2f, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72,
+	0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x22,
+	0x0f, 0x0a, 0x0d, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x22, 0x2a, 0x0a, 0x0e, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
+	0x73, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x18, 0x01, 0x20,
+	0x03, 0x28, 0x09, 0x52, 0x07, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x73, 0x32, 0x4a, 0x0a, 0x0d,
+	0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x39, 0x0a,
+	0x06, 0x48, 0x65, 0x61, 0x64, 0x65, 0x72, 0x12, 0x15, 0x2e, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72,
+	0x2e, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16,
+	0x2e, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x2e, 0x68, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65,
+	0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x0a, 0x5a, 0x08, 0x2e, 0x2f, 0x68, 0x65,
+	0x61, 0x64, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_headers_headers_proto_rawDescOnce sync.Once
+	file_headers_headers_proto_rawDescData = file_headers_headers_proto_rawDesc
+)
+
+func file_headers_headers_proto_rawDescGZIP() []byte {
+	file_headers_headers_proto_rawDescOnce.Do(func() {
+		file_headers_headers_proto_rawDescData = protoimpl.X.CompressGZIP(file_headers_headers_proto_rawDescData)
+	})
+	return file_headers_headers_proto_rawDescData
+}
+
+var file_headers_headers_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_headers_headers_proto_goTypes = []interface{}{
+	(*HeaderRequest)(nil),  // 0: header.headerRequest
+	(*HeaderResponse)(nil), // 1: header.headerResponse
+}
+var file_headers_headers_proto_depIdxs = []int32{
+	0, // 0: header.HeaderService.Header:input_type -> header.headerRequest
+	1, // 1: header.HeaderService.Header:output_type -> header.headerResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_headers_headers_proto_init() }
+func file_headers_headers_proto_init() {
+	if File_headers_headers_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_headers_headers_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*HeaderRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_headers_headers_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*HeaderResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_headers_headers_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_headers_headers_proto_goTypes,
+		DependencyIndexes: file_headers_headers_proto_depIdxs,
+		MessageInfos:      file_headers_headers_proto_msgTypes,
+	}.Build()
+	File_headers_headers_proto = out.File
+	file_headers_headers_proto_rawDesc = nil
+	file_headers_headers_proto_goTypes = nil
+	file_headers_headers_proto_depIdxs = nil
+}

pkg/api/grpc/headers/headers.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+option go_package = "./header";
+
+package header;
+
+message HeaderRequest {}
+
+message HeaderResponse {
+   repeated string headers = 1;
+}
+
+service HeaderService {
+    rpc Header(HeaderRequest) returns (HeaderResponse) {}
+}

pkg/api/grpc/headers/headers_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v4.25.0
+// source: headers/headers.proto
+
+package header
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// HeaderServiceClient is the client API for HeaderService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type HeaderServiceClient interface {
+	Header(ctx context.Context, in *HeaderRequest, opts ...grpc.CallOption) (*HeaderResponse, error)
+}
+
+type headerServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewHeaderServiceClient(cc grpc.ClientConnInterface) HeaderServiceClient {
+	return &headerServiceClient{cc}
+}
+
+func (c *headerServiceClient) Header(ctx context.Context, in *HeaderRequest, opts ...grpc.CallOption) (*HeaderResponse, error) {
+	out := new(HeaderResponse)
+	err := c.cc.Invoke(ctx, "/header.HeaderService/Header", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// HeaderServiceServer is the server API for HeaderService service.
+// All implementations must embed UnimplementedHeaderServiceServer
+// for forward compatibility
+type HeaderServiceServer interface {
+	Header(context.Context, *HeaderRequest) (*HeaderResponse, error)
+	mustEmbedUnimplementedHeaderServiceServer()
+}
+
+// UnimplementedHeaderServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedHeaderServiceServer struct {
+}
+
+func (UnimplementedHeaderServiceServer) Header(context.Context, *HeaderRequest) (*HeaderResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Header not implemented")
+}
+func (UnimplementedHeaderServiceServer) mustEmbedUnimplementedHeaderServiceServer() {}
+
+// UnsafeHeaderServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to HeaderServiceServer will
+// result in compilation errors.
+type UnsafeHeaderServiceServer interface {
+	mustEmbedUnimplementedHeaderServiceServer()
+}
+
+func RegisterHeaderServiceServer(s grpc.ServiceRegistrar, srv HeaderServiceServer) {
+	s.RegisterService(&HeaderService_ServiceDesc, srv)
+}
+
+func _HeaderService_Header_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(HeaderRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(HeaderServiceServer).Header(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/header.HeaderService/Header",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(HeaderServiceServer).Header(ctx, req.(*HeaderRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// HeaderService_ServiceDesc is the grpc.ServiceDesc for HeaderService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var HeaderService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "header.HeaderService",
+	HandlerType: (*HeaderServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Header",
+			Handler:    _HeaderService_Header_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "headers/headers.proto",
+}

pkg/api/grpc/headers_test.go

@@ -0,0 +1,69 @@
+package grpc
+
+import (
+	"context"
+	"log"
+	"net"
+	"regexp"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/headers"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcHeader(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	header.RegisterHeaderServiceServer(srv, &HeaderServer{})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	conn, err := grpc.DialContext(context.Background(), "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	headers := metadata.New(map[string]string{
+		"X-Test": "testing",
+	})
+
+	ctx := metadata.NewOutgoingContext(context.Background(), headers)
+
+	client := header.NewHeaderServiceClient(conn)
+	res, err := client.Header(ctx, &header.HeaderRequest{})
+
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Header returned type %T, want %T", err, status.Error)
+	}
+
+	expected := ".*testing.*"
+	r := regexp.MustCompile(expected)
+	if !r.MatchString(res.String()) {
+		t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+			res, expected)
+	}
+}

pkg/api/grpc/info.go

@@ -0,0 +1,70 @@
+package grpc
+
+import (
+	"context"
+	"go.uber.org/zap"
+	"log"
+	"runtime"
+	"strconv"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/info"
+	"github.com/stefanprodan/podinfo/pkg/version"
+)
+
+type infoServer struct {
+	pb.UnimplementedInfoServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *infoServer) Info(ctx context.Context, message *pb.InfoRequest) (*pb.InfoResponse, error) {
+
+	defer func() {
+		if r := recover(); r != nil {
+			log.Println("Recovered from panic:", r)
+		}
+	}()
+
+	data := RuntimeResponse{
+		Hostname:     s.config.Hostname,
+		Version:      version.VERSION,
+		Revision:     version.REVISION,
+		Color:        s.config.UIColor,
+		Logo:         s.config.UILogo,
+		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),
+	}
+
+	return &pb.InfoResponse{
+		Hostname:     data.Hostname,
+		Version:      data.Version,
+		Revision:     data.Revision,
+		Color:        data.Color,
+		Logo:         data.Logo,
+		Message:      data.Message,
+		Goos:         data.Goos,
+		Goarch:       data.Goarch,
+		Runtime:      data.Runtime,
+		Numgoroutine: data.Numgoroutine,
+		Numcpu:       data.Numcpu,
+	}, nil
+
+}
+
+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/grpc/info/info.pb.go

@@ -0,0 +1,296 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.25.0
+// source: info/info.proto
+
+package info
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type InfoRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *InfoRequest) Reset() {
+	*x = InfoRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_info_info_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *InfoRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*InfoRequest) ProtoMessage() {}
+
+func (x *InfoRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_info_info_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use InfoRequest.ProtoReflect.Descriptor instead.
+func (*InfoRequest) Descriptor() ([]byte, []int) {
+	return file_info_info_proto_rawDescGZIP(), []int{0}
+}
+
+type InfoResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Hostname     string `protobuf:"bytes,1,opt,name=hostname,proto3" json:"hostname,omitempty"`
+	Version      string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
+	Revision     string `protobuf:"bytes,3,opt,name=revision,proto3" json:"revision,omitempty"`
+	Color        string `protobuf:"bytes,4,opt,name=color,proto3" json:"color,omitempty"`
+	Logo         string `protobuf:"bytes,5,opt,name=logo,proto3" json:"logo,omitempty"`
+	Message      string `protobuf:"bytes,6,opt,name=message,proto3" json:"message,omitempty"`
+	Goos         string `protobuf:"bytes,7,opt,name=goos,proto3" json:"goos,omitempty"`
+	Goarch       string `protobuf:"bytes,8,opt,name=goarch,proto3" json:"goarch,omitempty"`
+	Runtime      string `protobuf:"bytes,9,opt,name=runtime,proto3" json:"runtime,omitempty"`
+	Numgoroutine string `protobuf:"bytes,10,opt,name=numgoroutine,proto3" json:"numgoroutine,omitempty"`
+	Numcpu       string `protobuf:"bytes,11,opt,name=numcpu,proto3" json:"numcpu,omitempty"`
+}
+
+func (x *InfoResponse) Reset() {
+	*x = InfoResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_info_info_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *InfoResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*InfoResponse) ProtoMessage() {}
+
+func (x *InfoResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_info_info_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use InfoResponse.ProtoReflect.Descriptor instead.
+func (*InfoResponse) Descriptor() ([]byte, []int) {
+	return file_info_info_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *InfoResponse) GetHostname() string {
+	if x != nil {
+		return x.Hostname
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetVersion() string {
+	if x != nil {
+		return x.Version
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetRevision() string {
+	if x != nil {
+		return x.Revision
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetColor() string {
+	if x != nil {
+		return x.Color
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetLogo() string {
+	if x != nil {
+		return x.Logo
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetGoos() string {
+	if x != nil {
+		return x.Goos
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetGoarch() string {
+	if x != nil {
+		return x.Goarch
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetRuntime() string {
+	if x != nil {
+		return x.Runtime
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetNumgoroutine() string {
+	if x != nil {
+		return x.Numgoroutine
+	}
+	return ""
+}
+
+func (x *InfoResponse) GetNumcpu() string {
+	if x != nil {
+		return x.Numcpu
+	}
+	return ""
+}
+
+var File_info_info_proto protoreflect.FileDescriptor
+
+var file_info_info_proto_rawDesc = []byte{
+	0x0a, 0x0f, 0x69, 0x6e, 0x66, 0x6f, 0x2f, 0x69, 0x6e, 0x66, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x12, 0x04, 0x69, 0x6e, 0x66, 0x6f, 0x22, 0x0d, 0x0a, 0x0b, 0x49, 0x6e, 0x66, 0x6f, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x22, 0xa6, 0x02, 0x0a, 0x0c, 0x49, 0x6e, 0x66, 0x6f, 0x52,
+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x1a, 0x0a, 0x08, 0x68, 0x6f, 0x73, 0x74, 0x6e,
+	0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x68, 0x6f, 0x73, 0x74, 0x6e,
+	0x61, 0x6d, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x02,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1a, 0x0a,
+	0x08, 0x72, 0x65, 0x76, 0x69, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x08, 0x72, 0x65, 0x76, 0x69, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x14, 0x0a, 0x05, 0x63, 0x6f, 0x6c,
+	0x6f, 0x72, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x63, 0x6f, 0x6c, 0x6f, 0x72, 0x12,
+	0x12, 0x0a, 0x04, 0x6c, 0x6f, 0x67, 0x6f, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6c,
+	0x6f, 0x67, 0x6f, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x06,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x12, 0x0a,
+	0x04, 0x67, 0x6f, 0x6f, 0x73, 0x18, 0x07, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x67, 0x6f, 0x6f,
+	0x73, 0x12, 0x16, 0x0a, 0x06, 0x67, 0x6f, 0x61, 0x72, 0x63, 0x68, 0x18, 0x08, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x06, 0x67, 0x6f, 0x61, 0x72, 0x63, 0x68, 0x12, 0x18, 0x0a, 0x07, 0x72, 0x75, 0x6e,
+	0x74, 0x69, 0x6d, 0x65, 0x18, 0x09, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x72, 0x75, 0x6e, 0x74,
+	0x69, 0x6d, 0x65, 0x12, 0x22, 0x0a, 0x0c, 0x6e, 0x75, 0x6d, 0x67, 0x6f, 0x72, 0x6f, 0x75, 0x74,
+	0x69, 0x6e, 0x65, 0x18, 0x0a, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0c, 0x6e, 0x75, 0x6d, 0x67, 0x6f,
+	0x72, 0x6f, 0x75, 0x74, 0x69, 0x6e, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x6e, 0x75, 0x6d, 0x63, 0x70,
+	0x75, 0x18, 0x0b, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x6e, 0x75, 0x6d, 0x63, 0x70, 0x75, 0x32,
+	0x3e, 0x0a, 0x0b, 0x49, 0x6e, 0x66, 0x6f, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x2f,
+	0x0a, 0x04, 0x49, 0x6e, 0x66, 0x6f, 0x12, 0x11, 0x2e, 0x69, 0x6e, 0x66, 0x6f, 0x2e, 0x49, 0x6e,
+	0x66, 0x6f, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x12, 0x2e, 0x69, 0x6e, 0x66, 0x6f,
+	0x2e, 0x49, 0x6e, 0x66, 0x6f, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42,
+	0x08, 0x5a, 0x06, 0x2e, 0x2f, 0x69, 0x6e, 0x66, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
+}
+
+var (
+	file_info_info_proto_rawDescOnce sync.Once
+	file_info_info_proto_rawDescData = file_info_info_proto_rawDesc
+)
+
+func file_info_info_proto_rawDescGZIP() []byte {
+	file_info_info_proto_rawDescOnce.Do(func() {
+		file_info_info_proto_rawDescData = protoimpl.X.CompressGZIP(file_info_info_proto_rawDescData)
+	})
+	return file_info_info_proto_rawDescData
+}
+
+var file_info_info_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_info_info_proto_goTypes = []interface{}{
+	(*InfoRequest)(nil),  // 0: info.InfoRequest
+	(*InfoResponse)(nil), // 1: info.InfoResponse
+}
+var file_info_info_proto_depIdxs = []int32{
+	0, // 0: info.InfoService.Info:input_type -> info.InfoRequest
+	1, // 1: info.InfoService.Info:output_type -> info.InfoResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_info_info_proto_init() }
+func file_info_info_proto_init() {
+	if File_info_info_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_info_info_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*InfoRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_info_info_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*InfoResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_info_info_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_info_info_proto_goTypes,
+		DependencyIndexes: file_info_info_proto_depIdxs,
+		MessageInfos:      file_info_info_proto_msgTypes,
+	}.Build()
+	File_info_info_proto = out.File
+	file_info_info_proto_rawDesc = nil
+	file_info_info_proto_goTypes = nil
+	file_info_info_proto_depIdxs = nil
+}

pkg/api/grpc/info/info.proto

@@ -0,0 +1,25 @@
+syntax = "proto3";
+
+option go_package = "./info";
+
+package info;
+
+message InfoRequest {}
+
+message InfoResponse {
+  	string	hostname = 1;
+	string	version = 2;
+	string	revision = 3;
+    string  color = 4 ;
+	string	logo = 5 ;
+	string	message = 6 ;
+	string	goos = 7;
+    string	goarch = 8; 
+    string	runtime = 9; 
+	string	numgoroutine =  10;
+	string	numcpu = 11;
+}
+
+service InfoService {
+    rpc Info (InfoRequest) returns (InfoResponse) {}
+}

pkg/api/grpc/info/info_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v4.25.0
+// source: info/info.proto
+
+package info
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// InfoServiceClient is the client API for InfoService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type InfoServiceClient interface {
+	Info(ctx context.Context, in *InfoRequest, opts ...grpc.CallOption) (*InfoResponse, error)
+}
+
+type infoServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewInfoServiceClient(cc grpc.ClientConnInterface) InfoServiceClient {
+	return &infoServiceClient{cc}
+}
+
+func (c *infoServiceClient) Info(ctx context.Context, in *InfoRequest, opts ...grpc.CallOption) (*InfoResponse, error) {
+	out := new(InfoResponse)
+	err := c.cc.Invoke(ctx, "/info.InfoService/Info", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// InfoServiceServer is the server API for InfoService service.
+// All implementations must embed UnimplementedInfoServiceServer
+// for forward compatibility
+type InfoServiceServer interface {
+	Info(context.Context, *InfoRequest) (*InfoResponse, error)
+	mustEmbedUnimplementedInfoServiceServer()
+}
+
+// UnimplementedInfoServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedInfoServiceServer struct {
+}
+
+func (UnimplementedInfoServiceServer) Info(context.Context, *InfoRequest) (*InfoResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Info not implemented")
+}
+func (UnimplementedInfoServiceServer) mustEmbedUnimplementedInfoServiceServer() {}
+
+// UnsafeInfoServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to InfoServiceServer will
+// result in compilation errors.
+type UnsafeInfoServiceServer interface {
+	mustEmbedUnimplementedInfoServiceServer()
+}
+
+func RegisterInfoServiceServer(s grpc.ServiceRegistrar, srv InfoServiceServer) {
+	s.RegisterService(&InfoService_ServiceDesc, srv)
+}
+
+func _InfoService_Info_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(InfoRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(InfoServiceServer).Info(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/info.InfoService/Info",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(InfoServiceServer).Info(ctx, req.(*InfoRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// InfoService_ServiceDesc is the grpc.ServiceDesc for InfoService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var InfoService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "info.InfoService",
+	HandlerType: (*InfoServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Info",
+			Handler:    _InfoService_Info_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "info/info.proto",
+}

pkg/api/grpc/info_test.go

@@ -0,0 +1,65 @@
+package grpc
+
+import (
+	"context"
+	"log"
+	"net"
+	"regexp"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/info"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcInfo(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	s := NewMockGrpcServer()
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	info.RegisterInfoServiceServer(srv, &infoServer{config: s.config})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := info.NewInfoServiceClient(conn)
+	res, err := client.Info(context.Background(), &info.InfoRequest{})
+
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Info returned type %T, want %T", err, status.Error)
+	}
+
+	expected := ".*color.*blue.*"
+	r := regexp.MustCompile(expected)
+	if !r.MatchString(res.String()) {
+		t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+			res.Color, expected)
+	}
+}

pkg/api/grpc/mock_grpc.go

@@ -0,0 +1,30 @@
+package grpc
+
+import (
+	"go.uber.org/zap"
+)
+
+func NewMockGrpcServer() *Server {
+	config := &Config{
+		Port: 9999,
+		// ServerShutdownTimeout: 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,
+		//tracer: trace.NewNoopTracerProvider().Tracer("mock"),
+	}
+}

pkg/api/grpc/panic.go

@@ -0,0 +1,22 @@
+package grpc
+
+import (
+	"context"
+	// "log"
+	"os"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/panic"
+	"go.uber.org/zap"
+)
+
+type PanicServer struct {
+	pb.UnimplementedPanicServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *PanicServer) Panic(ctx context.Context, req *pb.PanicRequest) (*pb.PanicResponse, error) {
+	s.logger.Info("Panic command received")
+	os.Exit(225)
+	return &pb.PanicResponse{}, nil
+}

pkg/api/grpc/panic/panic.pb.go

@@ -0,0 +1,189 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v3.6.1
+// source: panic.proto
+
+package panic
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type PanicRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *PanicRequest) Reset() {
+	*x = PanicRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_panic_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PanicRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PanicRequest) ProtoMessage() {}
+
+func (x *PanicRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_panic_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PanicRequest.ProtoReflect.Descriptor instead.
+func (*PanicRequest) Descriptor() ([]byte, []int) {
+	return file_panic_proto_rawDescGZIP(), []int{0}
+}
+
+type PanicResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *PanicResponse) Reset() {
+	*x = PanicResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_panic_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PanicResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PanicResponse) ProtoMessage() {}
+
+func (x *PanicResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_panic_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PanicResponse.ProtoReflect.Descriptor instead.
+func (*PanicResponse) Descriptor() ([]byte, []int) {
+	return file_panic_proto_rawDescGZIP(), []int{1}
+}
+
+var File_panic_proto protoreflect.FileDescriptor
+
+var file_panic_proto_rawDesc = []byte{
+	0x0a, 0x0b, 0x70, 0x61, 0x6e, 0x69, 0x63, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x05, 0x70,
+	0x61, 0x6e, 0x69, 0x63, 0x22, 0x0e, 0x0a, 0x0c, 0x50, 0x61, 0x6e, 0x69, 0x63, 0x52, 0x65, 0x71,
+	0x75, 0x65, 0x73, 0x74, 0x22, 0x0f, 0x0a, 0x0d, 0x50, 0x61, 0x6e, 0x69, 0x63, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x32, 0x44, 0x0a, 0x0c, 0x50, 0x61, 0x6e, 0x69, 0x63, 0x53, 0x65,
+	0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x34, 0x0a, 0x05, 0x50, 0x61, 0x6e, 0x69, 0x63, 0x12, 0x13,
+	0x2e, 0x70, 0x61, 0x6e, 0x69, 0x63, 0x2e, 0x50, 0x61, 0x6e, 0x69, 0x63, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x14, 0x2e, 0x70, 0x61, 0x6e, 0x69, 0x63, 0x2e, 0x50, 0x61, 0x6e, 0x69,
+	0x63, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x09, 0x5a, 0x07, 0x2e,
+	0x2f, 0x70, 0x61, 0x6e, 0x69, 0x63, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_panic_proto_rawDescOnce sync.Once
+	file_panic_proto_rawDescData = file_panic_proto_rawDesc
+)
+
+func file_panic_proto_rawDescGZIP() []byte {
+	file_panic_proto_rawDescOnce.Do(func() {
+		file_panic_proto_rawDescData = protoimpl.X.CompressGZIP(file_panic_proto_rawDescData)
+	})
+	return file_panic_proto_rawDescData
+}
+
+var file_panic_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_panic_proto_goTypes = []interface{}{
+	(*PanicRequest)(nil),  // 0: panic.PanicRequest
+	(*PanicResponse)(nil), // 1: panic.PanicResponse
+}
+var file_panic_proto_depIdxs = []int32{
+	0, // 0: panic.PanicService.Panic:input_type -> panic.PanicRequest
+	1, // 1: panic.PanicService.Panic:output_type -> panic.PanicResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_panic_proto_init() }
+func file_panic_proto_init() {
+	if File_panic_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_panic_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PanicRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_panic_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PanicResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_panic_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_panic_proto_goTypes,
+		DependencyIndexes: file_panic_proto_depIdxs,
+		MessageInfos:      file_panic_proto_msgTypes,
+	}.Build()
+	File_panic_proto = out.File
+	file_panic_proto_rawDesc = nil
+	file_panic_proto_goTypes = nil
+	file_panic_proto_depIdxs = nil
+}

pkg/api/grpc/panic/panic.proto

@@ -0,0 +1,17 @@
+syntax = "proto3";
+
+option go_package = "./panic";
+
+package panic;
+
+// The greeting service definition.
+service PanicService {
+    rpc Panic (PanicRequest) returns (PanicResponse) {}
+}
+
+message PanicRequest {
+}
+
+message PanicResponse {
+}
+

pkg/api/grpc/panic/panic_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.6.1
+// source: panic.proto
+
+package panic
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// PanicServiceClient is the client API for PanicService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type PanicServiceClient interface {
+	Panic(ctx context.Context, in *PanicRequest, opts ...grpc.CallOption) (*PanicResponse, error)
+}
+
+type panicServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewPanicServiceClient(cc grpc.ClientConnInterface) PanicServiceClient {
+	return &panicServiceClient{cc}
+}
+
+func (c *panicServiceClient) Panic(ctx context.Context, in *PanicRequest, opts ...grpc.CallOption) (*PanicResponse, error) {
+	out := new(PanicResponse)
+	err := c.cc.Invoke(ctx, "/panic.PanicService/Panic", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// PanicServiceServer is the server API for PanicService service.
+// All implementations must embed UnimplementedPanicServiceServer
+// for forward compatibility
+type PanicServiceServer interface {
+	Panic(context.Context, *PanicRequest) (*PanicResponse, error)
+	mustEmbedUnimplementedPanicServiceServer()
+}
+
+// UnimplementedPanicServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedPanicServiceServer struct {
+}
+
+func (UnimplementedPanicServiceServer) Panic(context.Context, *PanicRequest) (*PanicResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Panic not implemented")
+}
+func (UnimplementedPanicServiceServer) mustEmbedUnimplementedPanicServiceServer() {}
+
+// UnsafePanicServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to PanicServiceServer will
+// result in compilation errors.
+type UnsafePanicServiceServer interface {
+	mustEmbedUnimplementedPanicServiceServer()
+}
+
+func RegisterPanicServiceServer(s grpc.ServiceRegistrar, srv PanicServiceServer) {
+	s.RegisterService(&PanicService_ServiceDesc, srv)
+}
+
+func _PanicService_Panic_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PanicRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(PanicServiceServer).Panic(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/panic.PanicService/Panic",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(PanicServiceServer).Panic(ctx, req.(*PanicRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// PanicService_ServiceDesc is the grpc.ServiceDesc for PanicService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var PanicService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "panic.PanicService",
+	HandlerType: (*PanicServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Panic",
+			Handler:    _PanicService_Panic_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "panic.proto",
+}

pkg/api/grpc/server.go

@@ -0,0 +1,99 @@
+package grpc
+
+import (
+	"fmt"
+	"net"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/echo"
+
+	"go.uber.org/zap"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/health"
+	"google.golang.org/grpc/health/grpc_health_v1"
+	"google.golang.org/grpc/reflection"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/delay"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/env"
+	header "github.com/stefanprodan/podinfo/pkg/api/grpc/headers"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/info"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/panic"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/status"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/token"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/version"
+)
+
+type Server struct {
+	logger *zap.Logger
+	config *Config
+}
+
+type Config struct {
+	Port        int    `mapstructure:"grpc-port"`
+	ServiceName string `mapstructure:"grpc-service-name"`
+
+	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"`
+	CertPath   string   `mapstructure:"cert-path"`
+	Host       string   `mapstructure:"host"`
+	//Port                  string        `mapstructure:"port"`
+	SecurePort      string `mapstructure:"secure-port"`
+	PortMetrics     int    `mapstructure:"port-metrics"`
+	Hostname        string `mapstructure:"hostname"`
+	H2C             bool   `mapstructure:"h2c"`
+	RandomDelay     bool   `mapstructure:"random-delay"`
+	RandomDelayUnit string `mapstructure:"random-delay-unit"`
+	RandomDelayMin  int    `mapstructure:"random-delay-min"`
+	RandomDelayMax  int    `mapstructure:"random-delay-max"`
+	RandomError     bool   `mapstructure:"random-error"`
+	Unhealthy       bool   `mapstructure:"unhealthy"`
+	Unready         bool   `mapstructure:"unready"`
+	JWTSecret       string `mapstructure:"jwt-secret"`
+	CacheServer     string `mapstructure:"cache-server"`
+}
+
+func NewServer(config *Config, logger *zap.Logger) (*Server, error) {
+	srv := &Server{
+		logger: logger,
+		config: config,
+	}
+
+	return srv, nil
+}
+
+func (s *Server) ListenAndServe() *grpc.Server {
+	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()
+
+	// Register grpc apis for reflection
+	echo.RegisterEchoServiceServer(srv, &echoServer{config: s.config, logger: s.logger})
+	version.RegisterVersionServiceServer(srv, &VersionServer{config: s.config, logger: s.logger})
+	panic.RegisterPanicServiceServer(srv, &PanicServer{config: s.config, logger: s.logger})
+	delay.RegisterDelayServiceServer(srv, &DelayServer{config: s.config, logger: s.logger})
+	header.RegisterHeaderServiceServer(srv, &HeaderServer{config: s.config, logger: s.logger})
+	info.RegisterInfoServiceServer(srv, &infoServer{config: s.config})
+	status.RegisterStatusServiceServer(srv, &StatusServer{config: s.config, logger: s.logger})
+	token.RegisterTokenServiceServer(srv, &TokenServer{config: s.config, logger: s.logger})
+	env.RegisterEnvServiceServer(srv, &EnvServer{config: s.config, logger: s.logger})
+
+	reflection.Register(srv)
+	grpc_health_v1.RegisterHealthServer(srv, server)
+	server.SetServingStatus(s.config.ServiceName, grpc_health_v1.HealthCheckResponse_SERVING)
+
+	go func() {
+		if err := srv.Serve(listener); err != nil {
+			s.logger.Fatal("failed to serve", zap.Error(err))
+		}
+	}()
+
+	return srv
+}

pkg/api/grpc/status.go

@@ -0,0 +1,47 @@
+package grpc
+
+import (
+	"context"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/status"
+	"go.uber.org/zap"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type StatusServer struct {
+	pb.UnimplementedStatusServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *StatusServer) Status(ctx context.Context, req *pb.StatusRequest) (*pb.StatusResponse, error) {
+	reqCode := req.GetCode()
+
+	grpcCodes := map[string]codes.Code{
+		"Ok":                 codes.OK,
+		"Canceled":           codes.Canceled,
+		"Unknown":            codes.Unknown,
+		"InvalidArgument":    codes.InvalidArgument,
+		"DeadlineExceeded":   codes.DeadlineExceeded,
+		"NotFound":           codes.NotFound,
+		"AlreadyExists":      codes.AlreadyExists,
+		"PermissionDenied":   codes.PermissionDenied,
+		"ResourceExhausted":  codes.ResourceExhausted,
+		"FailedPrecondition": codes.FailedPrecondition,
+		"Aborted":            codes.Aborted,
+		"OutOfRange":         codes.OutOfRange,
+		"Unimplemented":      codes.Unimplemented,
+		"Internal":           codes.Internal,
+		"Unavailable":        codes.Unavailable,
+		"DataLoss":           codes.DataLoss,
+		"Unauthenticated":    codes.Unauthenticated,
+	}
+
+	code, ok := grpcCodes[reqCode]
+	if !ok {
+		return nil, status.Error(codes.Unknown, "Unknown status code for more information check https://chromium.googlesource.com/external/github.com/grpc/grpc/+/refs/tags/v1.21.4-pre1/doc/statuscodes.md")
+	}
+
+	return &pb.StatusResponse{Status: reqCode}, status.Error(code, "")
+}

pkg/api/grpc/status/status.pb.go

@@ -0,0 +1,211 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.25.0
+// source: status/status.proto
+
+package status
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type StatusRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Code string `protobuf:"bytes,1,opt,name=code,proto3" json:"code,omitempty"`
+}
+
+func (x *StatusRequest) Reset() {
+	*x = StatusRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_status_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *StatusRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*StatusRequest) ProtoMessage() {}
+
+func (x *StatusRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_status_status_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use StatusRequest.ProtoReflect.Descriptor instead.
+func (*StatusRequest) Descriptor() ([]byte, []int) {
+	return file_status_status_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *StatusRequest) GetCode() string {
+	if x != nil {
+		return x.Code
+	}
+	return ""
+}
+
+type StatusResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Status string `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
+}
+
+func (x *StatusResponse) Reset() {
+	*x = StatusResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_status_status_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *StatusResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*StatusResponse) ProtoMessage() {}
+
+func (x *StatusResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_status_status_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use StatusResponse.ProtoReflect.Descriptor instead.
+func (*StatusResponse) Descriptor() ([]byte, []int) {
+	return file_status_status_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *StatusResponse) GetStatus() string {
+	if x != nil {
+		return x.Status
+	}
+	return ""
+}
+
+var File_status_status_proto protoreflect.FileDescriptor
+
+var file_status_status_proto_rawDesc = []byte{
+	0x0a, 0x13, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x2f, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x2e,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x22, 0x23, 0x0a,
+	0x0d, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x12,
+	0x0a, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x63, 0x6f,
+	0x64, 0x65, 0x22, 0x28, 0x0a, 0x0e, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65, 0x73, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x18, 0x01,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x32, 0x4a, 0x0a, 0x0d,
+	0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x39, 0x0a,
+	0x06, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x12, 0x15, 0x2e, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73,
+	0x2e, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16,
+	0x2e, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x2e, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65,
+	0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x0a, 0x5a, 0x08, 0x2e, 0x2f, 0x73, 0x74,
+	0x61, 0x74, 0x75, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_status_status_proto_rawDescOnce sync.Once
+	file_status_status_proto_rawDescData = file_status_status_proto_rawDesc
+)
+
+func file_status_status_proto_rawDescGZIP() []byte {
+	file_status_status_proto_rawDescOnce.Do(func() {
+		file_status_status_proto_rawDescData = protoimpl.X.CompressGZIP(file_status_status_proto_rawDescData)
+	})
+	return file_status_status_proto_rawDescData
+}
+
+var file_status_status_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_status_status_proto_goTypes = []interface{}{
+	(*StatusRequest)(nil),  // 0: status.StatusRequest
+	(*StatusResponse)(nil), // 1: status.StatusResponse
+}
+var file_status_status_proto_depIdxs = []int32{
+	0, // 0: status.StatusService.Status:input_type -> status.StatusRequest
+	1, // 1: status.StatusService.Status:output_type -> status.StatusResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_status_status_proto_init() }
+func file_status_status_proto_init() {
+	if File_status_status_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_status_status_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*StatusRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_status_status_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*StatusResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_status_status_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_status_status_proto_goTypes,
+		DependencyIndexes: file_status_status_proto_depIdxs,
+		MessageInfos:      file_status_status_proto_msgTypes,
+	}.Build()
+	File_status_status_proto = out.File
+	file_status_status_proto_rawDesc = nil
+	file_status_status_proto_goTypes = nil
+	file_status_status_proto_depIdxs = nil
+}

pkg/api/grpc/status/status.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+option go_package = "./status";
+
+package status;
+
+// The greeting service definition.
+service StatusService {
+    rpc Status (StatusRequest) returns (StatusResponse) {}
+}
+
+message StatusRequest {
+    string code = 1;
+}
+
+message StatusResponse {
+    string status = 1;
+}

pkg/api/grpc/status/status_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v4.25.0
+// source: status/status.proto
+
+package status
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// StatusServiceClient is the client API for StatusService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type StatusServiceClient interface {
+	Status(ctx context.Context, in *StatusRequest, opts ...grpc.CallOption) (*StatusResponse, error)
+}
+
+type statusServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewStatusServiceClient(cc grpc.ClientConnInterface) StatusServiceClient {
+	return &statusServiceClient{cc}
+}
+
+func (c *statusServiceClient) Status(ctx context.Context, in *StatusRequest, opts ...grpc.CallOption) (*StatusResponse, error) {
+	out := new(StatusResponse)
+	err := c.cc.Invoke(ctx, "/status.StatusService/Status", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// StatusServiceServer is the server API for StatusService service.
+// All implementations must embed UnimplementedStatusServiceServer
+// for forward compatibility
+type StatusServiceServer interface {
+	Status(context.Context, *StatusRequest) (*StatusResponse, error)
+	mustEmbedUnimplementedStatusServiceServer()
+}
+
+// UnimplementedStatusServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedStatusServiceServer struct {
+}
+
+func (UnimplementedStatusServiceServer) Status(context.Context, *StatusRequest) (*StatusResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Status not implemented")
+}
+func (UnimplementedStatusServiceServer) mustEmbedUnimplementedStatusServiceServer() {}
+
+// UnsafeStatusServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to StatusServiceServer will
+// result in compilation errors.
+type UnsafeStatusServiceServer interface {
+	mustEmbedUnimplementedStatusServiceServer()
+}
+
+func RegisterStatusServiceServer(s grpc.ServiceRegistrar, srv StatusServiceServer) {
+	s.RegisterService(&StatusService_ServiceDesc, srv)
+}
+
+func _StatusService_Status_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(StatusRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(StatusServiceServer).Status(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/status.StatusService/Status",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(StatusServiceServer).Status(ctx, req.(*StatusRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// StatusService_ServiceDesc is the grpc.ServiceDesc for StatusService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var StatusService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "status.StatusService",
+	HandlerType: (*StatusServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Status",
+			Handler:    _StatusService_Status_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "status/status.proto",
+}

pkg/api/grpc/status_test.go

@@ -0,0 +1,124 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net"
+	"regexp"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/status"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	st "google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcStatusError(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	status.RegisterStatusServiceServer(srv, &StatusServer{})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := status.NewStatusServiceClient(conn)
+
+	res, err := client.Status(context.Background(), &status.StatusRequest{Code: "NotFound"})
+
+	if err != nil {
+		if e, ok := st.FromError(err); ok {
+			if e.Code() != codes.NotFound {
+				if res != nil {
+					fmt.Printf("res %v\n", res)
+				}
+				t.Errorf("Status returned %s, want %s", fmt.Sprint(e.Code()), fmt.Sprint(codes.Aborted))
+			}
+		}
+	}
+
+}
+
+func TestGrpcStatusOk(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	status.RegisterStatusServiceServer(srv, &StatusServer{})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := status.NewStatusServiceClient(conn)
+
+	res, err := client.Status(context.Background(), &status.StatusRequest{Code: "Ok"})
+
+	if err != nil {
+		if e, ok := st.FromError(err); ok {
+			t.Errorf("Status returned %s, want %s", fmt.Sprint(e.Code()), fmt.Sprint(codes.OK))
+		}
+	}
+
+	expected := ".*Ok.*"
+	r := regexp.MustCompile(expected)
+	if res != nil {
+		if !r.MatchString(res.Status) {
+			t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+				res, expected)
+		}
+	}
+
+}

pkg/api/grpc/token.go

@@ -0,0 +1,103 @@
+package grpc
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"github.com/golang-jwt/jwt/v4"
+	"go.uber.org/zap"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/token"
+)
+
+type TokenServer struct {
+	pb.UnimplementedTokenServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+type jwtCustomClaims struct {
+	Name string `json:"name"`
+	jwt.StandardClaims
+}
+
+func (s *TokenServer) TokenGenerate(ctx context.Context, req *pb.TokenRequest) (*pb.TokenResponse, error) {
+
+	user := "anonymous"
+	expiresAt := time.Now().Add(time.Minute * 1).Unix()
+
+	claims := &jwtCustomClaims{
+		user,
+		jwt.StandardClaims{
+			Issuer:    "podinfo",
+			ExpiresAt: expiresAt,
+		},
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	t, err := token.SignedString([]byte(s.config.JWTSecret))
+
+	if err != nil {
+		s.logger.Error("Failed to generate token", zap.Error(err))
+		return &pb.TokenResponse{}, err
+	}
+
+	var result = pb.TokenResponse{
+		Token:     t,
+		ExpiresAt: time.Unix(claims.StandardClaims.ExpiresAt, 0).String(),
+		Message:   "Token generated successfully",
+	}
+
+	return &result, nil
+}
+
+func (s *TokenServer) TokenValidate(ctx context.Context, req *pb.TokenRequest) (*pb.TokenResponse, error) {
+	md, ok := metadata.FromIncomingContext(ctx)
+	if !ok {
+		return nil, status.Errorf(codes.DataLoss, "UnaryEcho: failed to get metadata")
+	}
+
+	authorization := md.Get("authorization")
+
+	if len(authorization) == 0 {
+		return nil, status.Errorf(codes.Unauthenticated, "Authorization token not found in metadata")
+	}
+
+	token := strings.TrimSpace(strings.TrimPrefix(authorization[0], "Bearer"))
+
+	claims := jwtCustomClaims{}
+
+	parsed_token, err := jwt.ParseWithClaims(token, &claims, func(parsed_token *jwt.Token) (interface{}, error) {
+		if _, ok := parsed_token.Method.(*jwt.SigningMethodHMAC); !ok {
+			return nil, status.Errorf(codes.Canceled, "invalid signing method")
+		}
+		return []byte(s.config.JWTSecret), nil
+	})
+	if err != nil {
+		if strings.Contains(err.Error(), "token is expired") || strings.Contains(err.Error(), "signature is invalid") {
+			return &pb.TokenResponse{
+				Message: err.Error(),
+			}, nil
+		}
+		return nil, status.Errorf(codes.Unauthenticated, "Unable to parse token")
+
+	}
+
+	if parsed_token.Valid {
+		if claims.StandardClaims.Issuer != "podinfo" {
+			return nil, status.Errorf(codes.OK, "Invalid issuer")
+		} else {
+			var result = pb.TokenResponse{
+				Token:     claims.Name,
+				ExpiresAt: time.Unix(claims.StandardClaims.ExpiresAt, 0).String(),
+			}
+			return &result, nil
+		}
+	} else {
+		return nil, status.Errorf(codes.Unauthenticated, "Unauthenticated")
+	}
+}

pkg/api/grpc/token/token.pb.go

@@ -0,0 +1,226 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.25.0
+// source: token/token.proto
+
+package token
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type TokenRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *TokenRequest) Reset() {
+	*x = TokenRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_token_token_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TokenRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TokenRequest) ProtoMessage() {}
+
+func (x *TokenRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_token_token_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TokenRequest.ProtoReflect.Descriptor instead.
+func (*TokenRequest) Descriptor() ([]byte, []int) {
+	return file_token_token_proto_rawDescGZIP(), []int{0}
+}
+
+type TokenResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Token     string `protobuf:"bytes,1,opt,name=token,proto3" json:"token,omitempty"`
+	ExpiresAt string `protobuf:"bytes,2,opt,name=expiresAt,proto3" json:"expiresAt,omitempty"`
+	Message   string `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
+}
+
+func (x *TokenResponse) Reset() {
+	*x = TokenResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_token_token_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TokenResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TokenResponse) ProtoMessage() {}
+
+func (x *TokenResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_token_token_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TokenResponse.ProtoReflect.Descriptor instead.
+func (*TokenResponse) Descriptor() ([]byte, []int) {
+	return file_token_token_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *TokenResponse) GetToken() string {
+	if x != nil {
+		return x.Token
+	}
+	return ""
+}
+
+func (x *TokenResponse) GetExpiresAt() string {
+	if x != nil {
+		return x.ExpiresAt
+	}
+	return ""
+}
+
+func (x *TokenResponse) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
+var File_token_token_proto protoreflect.FileDescriptor
+
+var file_token_token_proto_rawDesc = []byte{
+	0x0a, 0x11, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x2f, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x2e, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x12, 0x05, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x22, 0x0e, 0x0a, 0x0c, 0x54, 0x6f,
+	0x6b, 0x65, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x22, 0x5d, 0x0a, 0x0d, 0x54, 0x6f,
+	0x6b, 0x65, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x74,
+	0x6f, 0x6b, 0x65, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x74, 0x6f, 0x6b, 0x65,
+	0x6e, 0x12, 0x1c, 0x0a, 0x09, 0x65, 0x78, 0x70, 0x69, 0x72, 0x65, 0x73, 0x41, 0x74, 0x18, 0x02,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x09, 0x65, 0x78, 0x70, 0x69, 0x72, 0x65, 0x73, 0x41, 0x74, 0x12,
+	0x18, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x32, 0x8a, 0x01, 0x0a, 0x0c, 0x54, 0x6f,
+	0x6b, 0x65, 0x6e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x3c, 0x0a, 0x0d, 0x54, 0x6f,
+	0x6b, 0x65, 0x6e, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x74, 0x65, 0x12, 0x13, 0x2e, 0x74, 0x6f,
+	0x6b, 0x65, 0x6e, 0x2e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x14, 0x2e, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x2e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x52, 0x65,
+	0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3c, 0x0a, 0x0d, 0x54, 0x6f, 0x6b, 0x65,
+	0x6e, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x65, 0x12, 0x13, 0x2e, 0x74, 0x6f, 0x6b, 0x65,
+	0x6e, 0x2e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x14,
+	0x2e, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x2e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x52, 0x65, 0x73, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x2f, 0x74, 0x6f, 0x6b, 0x65,
+	0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_token_token_proto_rawDescOnce sync.Once
+	file_token_token_proto_rawDescData = file_token_token_proto_rawDesc
+)
+
+func file_token_token_proto_rawDescGZIP() []byte {
+	file_token_token_proto_rawDescOnce.Do(func() {
+		file_token_token_proto_rawDescData = protoimpl.X.CompressGZIP(file_token_token_proto_rawDescData)
+	})
+	return file_token_token_proto_rawDescData
+}
+
+var file_token_token_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_token_token_proto_goTypes = []interface{}{
+	(*TokenRequest)(nil),  // 0: token.TokenRequest
+	(*TokenResponse)(nil), // 1: token.TokenResponse
+}
+var file_token_token_proto_depIdxs = []int32{
+	0, // 0: token.TokenService.TokenGenerate:input_type -> token.TokenRequest
+	0, // 1: token.TokenService.TokenValidate:input_type -> token.TokenRequest
+	1, // 2: token.TokenService.TokenGenerate:output_type -> token.TokenResponse
+	1, // 3: token.TokenService.TokenValidate:output_type -> token.TokenResponse
+	2, // [2:4] is the sub-list for method output_type
+	0, // [0:2] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_token_token_proto_init() }
+func file_token_token_proto_init() {
+	if File_token_token_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_token_token_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TokenRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_token_token_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TokenResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_token_token_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_token_token_proto_goTypes,
+		DependencyIndexes: file_token_token_proto_depIdxs,
+		MessageInfos:      file_token_token_proto_msgTypes,
+	}.Build()
+	File_token_token_proto = out.File
+	file_token_token_proto_rawDesc = nil
+	file_token_token_proto_goTypes = nil
+	file_token_token_proto_depIdxs = nil
+}

pkg/api/grpc/token/token.proto

@@ -0,0 +1,20 @@
+syntax = "proto3";
+
+option go_package = "./token";
+
+package token;
+
+
+// The greeting service definition.
+service TokenService {
+    rpc TokenGenerate (TokenRequest) returns (TokenResponse) {}
+    rpc TokenValidate (TokenRequest) returns (TokenResponse) {}
+}
+
+message TokenRequest {}
+
+message TokenResponse {
+    string token = 1;
+    string expiresAt = 2;
+    string message = 3;
+}

pkg/api/grpc/token/token_grpc.pb.go

@@ -0,0 +1,141 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v4.25.0
+// source: token/token.proto
+
+package token
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// TokenServiceClient is the client API for TokenService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type TokenServiceClient interface {
+	TokenGenerate(ctx context.Context, in *TokenRequest, opts ...grpc.CallOption) (*TokenResponse, error)
+	TokenValidate(ctx context.Context, in *TokenRequest, opts ...grpc.CallOption) (*TokenResponse, error)
+}
+
+type tokenServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewTokenServiceClient(cc grpc.ClientConnInterface) TokenServiceClient {
+	return &tokenServiceClient{cc}
+}
+
+func (c *tokenServiceClient) TokenGenerate(ctx context.Context, in *TokenRequest, opts ...grpc.CallOption) (*TokenResponse, error) {
+	out := new(TokenResponse)
+	err := c.cc.Invoke(ctx, "/token.TokenService/TokenGenerate", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *tokenServiceClient) TokenValidate(ctx context.Context, in *TokenRequest, opts ...grpc.CallOption) (*TokenResponse, error) {
+	out := new(TokenResponse)
+	err := c.cc.Invoke(ctx, "/token.TokenService/TokenValidate", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// TokenServiceServer is the server API for TokenService service.
+// All implementations must embed UnimplementedTokenServiceServer
+// for forward compatibility
+type TokenServiceServer interface {
+	TokenGenerate(context.Context, *TokenRequest) (*TokenResponse, error)
+	TokenValidate(context.Context, *TokenRequest) (*TokenResponse, error)
+	mustEmbedUnimplementedTokenServiceServer()
+}
+
+// UnimplementedTokenServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedTokenServiceServer struct {
+}
+
+func (UnimplementedTokenServiceServer) TokenGenerate(context.Context, *TokenRequest) (*TokenResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method TokenGenerate not implemented")
+}
+func (UnimplementedTokenServiceServer) TokenValidate(context.Context, *TokenRequest) (*TokenResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method TokenValidate not implemented")
+}
+func (UnimplementedTokenServiceServer) mustEmbedUnimplementedTokenServiceServer() {}
+
+// UnsafeTokenServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to TokenServiceServer will
+// result in compilation errors.
+type UnsafeTokenServiceServer interface {
+	mustEmbedUnimplementedTokenServiceServer()
+}
+
+func RegisterTokenServiceServer(s grpc.ServiceRegistrar, srv TokenServiceServer) {
+	s.RegisterService(&TokenService_ServiceDesc, srv)
+}
+
+func _TokenService_TokenGenerate_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(TokenRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TokenServiceServer).TokenGenerate(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/token.TokenService/TokenGenerate",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TokenServiceServer).TokenGenerate(ctx, req.(*TokenRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _TokenService_TokenValidate_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(TokenRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TokenServiceServer).TokenValidate(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/token.TokenService/TokenValidate",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TokenServiceServer).TokenValidate(ctx, req.(*TokenRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// TokenService_ServiceDesc is the grpc.ServiceDesc for TokenService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var TokenService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "token.TokenService",
+	HandlerType: (*TokenServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "TokenGenerate",
+			Handler:    _TokenService_TokenGenerate_Handler,
+		},
+		{
+			MethodName: "TokenValidate",
+			Handler:    _TokenService_TokenValidate_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "token/token.proto",
+}

pkg/api/grpc/token_test.go

@@ -0,0 +1,66 @@
+package grpc
+
+import (
+	"context"
+	"log"
+	"net"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/token"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcToken(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+	config := &Config{}
+	config.JWTSecret = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
+	token.RegisterTokenServiceServer(srv, &TokenServer{config: config})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := token.NewTokenServiceClient(conn)
+	res, err := client.TokenGenerate(context.Background(), &token.TokenRequest{})
+
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Token Handler returned type %T, want %T", err, status.Error)
+	}
+
+	var token = token.TokenResponse{
+		Token:     res.Token,
+		ExpiresAt: res.ExpiresAt,
+	}
+
+	if token.Token == "" {
+		t.Fatalf("Handler returned no token")
+	}
+}

pkg/api/grpc/version.go

@@ -0,0 +1,19 @@
+package grpc
+
+import (
+	"context"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/version"
+	"github.com/stefanprodan/podinfo/pkg/version"
+	"go.uber.org/zap"
+)
+
+type VersionServer struct {
+	pb.UnimplementedVersionServiceServer
+	config *Config
+	logger *zap.Logger
+}
+
+func (s *VersionServer) Version(ctx context.Context, req *pb.VersionRequest) (*pb.VersionResponse, error) {
+	return &pb.VersionResponse{Version: version.VERSION, Commit: version.REVISION}, nil
+}

pkg/api/grpc/version/version.pb.go

@@ -0,0 +1,211 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v3.6.1
+// source: version.proto
+
+package version
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type VersionRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *VersionRequest) Reset() {
+	*x = VersionRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_version_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VersionRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VersionRequest) ProtoMessage() {}
+
+func (x *VersionRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_version_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VersionRequest.ProtoReflect.Descriptor instead.
+func (*VersionRequest) Descriptor() ([]byte, []int) {
+	return file_version_proto_rawDescGZIP(), []int{0}
+}
+
+type VersionResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Version string `protobuf:"bytes,1,opt,name=version,proto3" json:"version,omitempty"`
+	Commit  string `protobuf:"bytes,2,opt,name=commit,proto3" json:"commit,omitempty"`
+}
+
+func (x *VersionResponse) Reset() {
+	*x = VersionResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_version_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VersionResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VersionResponse) ProtoMessage() {}
+
+func (x *VersionResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_version_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VersionResponse.ProtoReflect.Descriptor instead.
+func (*VersionResponse) Descriptor() ([]byte, []int) {
+	return file_version_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *VersionResponse) GetVersion() string {
+	if x != nil {
+		return x.Version
+	}
+	return ""
+}
+
+func (x *VersionResponse) GetCommit() string {
+	if x != nil {
+		return x.Commit
+	}
+	return ""
+}
+
+var File_version_proto protoreflect.FileDescriptor
+
+var file_version_proto_rawDesc = []byte{
+	0x0a, 0x0d, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
+	0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x22, 0x10, 0x0a, 0x0e, 0x56, 0x65, 0x72, 0x73,
+	0x69, 0x6f, 0x6e, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x22, 0x43, 0x0a, 0x0f, 0x56, 0x65,
+	0x72, 0x73, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x18, 0x0a,
+	0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07,
+	0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x16, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x69,
+	0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x32,
+	0x50, 0x0a, 0x0e, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63,
+	0x65, 0x12, 0x3e, 0x0a, 0x07, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x17, 0x2e, 0x76,
+	0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x2e, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x18, 0x2e, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x2e,
+	0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
+	0x00, 0x42, 0x0b, 0x5a, 0x09, 0x2e, 0x2f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_version_proto_rawDescOnce sync.Once
+	file_version_proto_rawDescData = file_version_proto_rawDesc
+)
+
+func file_version_proto_rawDescGZIP() []byte {
+	file_version_proto_rawDescOnce.Do(func() {
+		file_version_proto_rawDescData = protoimpl.X.CompressGZIP(file_version_proto_rawDescData)
+	})
+	return file_version_proto_rawDescData
+}
+
+var file_version_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_version_proto_goTypes = []interface{}{
+	(*VersionRequest)(nil),  // 0: version.VersionRequest
+	(*VersionResponse)(nil), // 1: version.VersionResponse
+}
+var file_version_proto_depIdxs = []int32{
+	0, // 0: version.VersionService.Version:input_type -> version.VersionRequest
+	1, // 1: version.VersionService.Version:output_type -> version.VersionResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_version_proto_init() }
+func file_version_proto_init() {
+	if File_version_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_version_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*VersionRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_version_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*VersionResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_version_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_version_proto_goTypes,
+		DependencyIndexes: file_version_proto_depIdxs,
+		MessageInfos:      file_version_proto_msgTypes,
+	}.Build()
+	File_version_proto = out.File
+	file_version_proto_rawDesc = nil
+	file_version_proto_goTypes = nil
+	file_version_proto_depIdxs = nil
+}

pkg/api/grpc/version/version.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+option go_package = "./version";
+
+package version;
+
+
+service VersionService {
+    rpc Version (VersionRequest) returns (VersionResponse) {}
+}
+
+
+message VersionRequest {}
+
+message VersionResponse {
+  string version = 1;
+  string commit = 2;
+}

pkg/api/grpc/version/version_grpc.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.6.1
+// source: version.proto
+
+package version
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// VersionServiceClient is the client API for VersionService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type VersionServiceClient interface {
+	Version(ctx context.Context, in *VersionRequest, opts ...grpc.CallOption) (*VersionResponse, error)
+}
+
+type versionServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewVersionServiceClient(cc grpc.ClientConnInterface) VersionServiceClient {
+	return &versionServiceClient{cc}
+}
+
+func (c *versionServiceClient) Version(ctx context.Context, in *VersionRequest, opts ...grpc.CallOption) (*VersionResponse, error) {
+	out := new(VersionResponse)
+	err := c.cc.Invoke(ctx, "/version.VersionService/Version", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// VersionServiceServer is the server API for VersionService service.
+// All implementations must embed UnimplementedVersionServiceServer
+// for forward compatibility
+type VersionServiceServer interface {
+	Version(context.Context, *VersionRequest) (*VersionResponse, error)
+	mustEmbedUnimplementedVersionServiceServer()
+}
+
+// UnimplementedVersionServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedVersionServiceServer struct {
+}
+
+func (UnimplementedVersionServiceServer) Version(context.Context, *VersionRequest) (*VersionResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Version not implemented")
+}
+func (UnimplementedVersionServiceServer) mustEmbedUnimplementedVersionServiceServer() {}
+
+// UnsafeVersionServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to VersionServiceServer will
+// result in compilation errors.
+type UnsafeVersionServiceServer interface {
+	mustEmbedUnimplementedVersionServiceServer()
+}
+
+func RegisterVersionServiceServer(s grpc.ServiceRegistrar, srv VersionServiceServer) {
+	s.RegisterService(&VersionService_ServiceDesc, srv)
+}
+
+func _VersionService_Version_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VersionRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VersionServiceServer).Version(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/version.VersionService/Version",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VersionServiceServer).Version(ctx, req.(*VersionRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// VersionService_ServiceDesc is the grpc.ServiceDesc for VersionService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var VersionService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "version.VersionService",
+	HandlerType: (*VersionServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Version",
+			Handler:    _VersionService_Version_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "version.proto",
+}

pkg/api/grpc/version_test.go

@@ -0,0 +1,66 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net"
+	"regexp"
+	"testing"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/version"
+	v "github.com/stefanprodan/podinfo/pkg/version"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+func TestGrpcVersion(t *testing.T) {
+
+	lis := bufconn.Listen(1024 * 1024)
+	t.Cleanup(func() {
+		lis.Close()
+	})
+
+	srv := grpc.NewServer()
+	t.Cleanup(func() {
+		srv.Stop()
+	})
+
+	version.RegisterVersionServiceServer(srv, &VersionServer{})
+
+	go func() {
+		if err := srv.Serve(lis); err != nil {
+			log.Fatalf("srv.Serve %v", err)
+		}
+	}()
+
+	dialer := func(context.Context, string) (net.Conn, error) {
+		return lis.Dial()
+	}
+
+	ctx := context.Background()
+
+	conn, err := grpc.DialContext(ctx, "", grpc.WithContextDialer(dialer), grpc.WithInsecure())
+	t.Cleanup(func() {
+		conn.Close()
+	})
+
+	if err != nil {
+		t.Fatalf("grpc.DialContext %v", err)
+	}
+
+	client := version.NewVersionServiceClient(conn)
+	res, err := client.Version(context.Background(), &version.VersionRequest{})
+
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Version returned type %T, want %T", err, status.Error)
+	}
+
+	expected := fmt.Sprintf(".*%s.*", v.VERSION)
+	r := regexp.MustCompile(expected)
+	if !r.MatchString(res.String()) {
+		t.Fatalf("Returned unexpected body:\ngot \n%v \nwant \n%s",
+			res, expected)
+	}
+}

pkg/api/http/cache.go

@@ -1,4 +1,4 @@
-package api
+package http
 
 import (
 	"fmt"

pkg/api/http/chunked.go

@@ -1,4 +1,4 @@
-package api
+package http
 
 import (
 	"math/rand"
@@ -17,7 +17,7 @@ import (
 // @Produce json
 // @Param seconds path int true "seconds to wait for"
 // @Router /chunked/{seconds} [get]
-// @Success 200 {object} api.MapResponse
+// @Success 200 {object} http.MapResponse
 func (s *Server) chunkedHandler(w http.ResponseWriter, r *http.Request) {
 	_, span := s.tracer.Start(r.Context(), "chunkedHandler")
 	defer span.End()

pkg/api/http/chunked_test.go

@@ -1,4 +1,4 @@
-package api
+package http
 
 import (
 	"net/http"

pkg/api/http/configs.go

@@ -1,4 +1,4 @@
-package api
+package http
 
 import "net/http"