Test Flux source-watcher

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

.cosign/README.md

@@ -0,0 +1,61 @@
+# Podinfo signed releases
+
+Podinfo release assets (container image, Helm chart, Flux artifact, Timoni module)
+are published to GitHub Container Registry and are signed with
+[Cosign v2](https://github.com/sigstore/cosign) keyless & GitHub Actions OIDC.
+
+## Verify podinfo with cosign
+
+Install the [cosign](https://github.com/sigstore/cosign) CLI:
+
+```sh
+brew install sigstore/tap/cosign
+```
+
+### Container image
+
+Verify the podinfo container image hosted on GHCR:
+
+```sh
+cosign verify ghcr.io/stefanprodan/podinfo:6.5.0 \
+--certificate-identity-regexp="^https://github.com/stefanprodan/podinfo.*$" \
+--certificate-oidc-issuer=https://token.actions.githubusercontent.com
+```
+
+Verify the podinfo container image hosted on Docker Hub:
+
+```sh
+cosign verify docker.io/stefanprodan/podinfo:6.5.0 \
+--certificate-identity-regexp="^https://github.com/stefanprodan/podinfo.*$" \
+--certificate-oidc-issuer=https://token.actions.githubusercontent.com
+```
+
+### Helm chart
+
+Verify the podinfo [Helm](https://helm.sh) chart hosted on GHCR:
+
+```sh
+cosign verify ghcr.io/stefanprodan/charts/podinfo:6.5.0 \
+--certificate-identity-regexp="^https://github.com/stefanprodan/podinfo.*$" \
+--certificate-oidc-issuer=https://token.actions.githubusercontent.com
+```
+
+### Flux artifact
+
+Verify the podinfo [Flux](https://fluxcd.io) artifact hosted on GHCR:
+
+```sh
+cosign verify ghcr.io/stefanprodan/manifests/podinfo:6.5.0 \
+--certificate-identity-regexp="^https://github.com/stefanprodan/podinfo.*$" \
+--certificate-oidc-issuer=https://token.actions.githubusercontent.com
+```
+
+### Timoni module
+
+Verify the podinfo [Timoni](https://timoni.sh) module hosted on GHCR:
+
+```sh
+cosign verify ghcr.io/stefanprodan/modules/podinfo:6.5.0 \
+--certificate-identity-regexp="^https://github.com/stefanprodan/podinfo.*$" \
+--certificate-oidc-issuer=https://token.actions.githubusercontent.com
+```

.cosign/cosign.pub

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEST+BqQ1XZhhVYx0YWQjdUJYIG5Lt
+iz2+UxRIqmKBqNmce2T+l45qyqOs99qfD7gLNGmkVZ4vtJ9bM7FxChFczg==
+-----END PUBLIC KEY-----

.gitattributes

@@ -0,0 +1 @@
+timoni/podinfo/cue.mod/** linguist-vendored

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: stefanprodan

.github/actions/helm/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/helm/action.yml

@@ -1,15 +0,0 @@
-name: 'helm'
-description: 'A GitHub Action to run helm commands'
-author: 'Stefan Prodan'
-branding:
-  icon: 'command'
-  color: 'blue'
-inputs:
-  helm-version:
-    description: Helm version to use
-    required: true
-runs:
-  using: 'docker'
-  image: 'Dockerfile'
-  args:
-    - ${{ inputs.helm-version }}

.github/actions/helm/entrypoint.sh

@@ -1,24 +0,0 @@
-#!/usr/bin/env bash
-
-set -o errexit
-set -o pipefail
-
-HELM_VERSION=$1
-BIN_DIR="$GITHUB_WORKSPACE/bin"
-
-main() {
-  mkdir -p ${BIN_DIR}
-  tmpDir=$(mktemp -d)
-
-  pushd $tmpDir >& /dev/null
-
-  curl -sSL https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz | tar xz
-  cp linux-amd64/helm ${BIN_DIR}/helm
-
-  popd >& /dev/null
-  rm -rf $tmpDir
-}
-
-main
-echo "$GITHUB_WORKSPACE/bin" >> $GITHUB_PATH
-echo "$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/bin" >> $GITHUB_PATH

.github/actions/kubeconform/action.yml

@@ -0,0 +1,38 @@
+name: Setup kubeconform
+description: A GitHub Action for running kubeconform commands
+author: Stefan Prodan
+branding:
+  color: blue
+  icon: command
+inputs:
+  version:
+    description: "kubeconform version e.g. 0.5.0 (defaults to latest stable release)"
+    required: false
+  arch:
+    description: "arch can be amd64 or arm64"
+    required: true
+    default: "amd64"
+runs:
+  using: composite
+  steps:
+    - name: "Download binary to the GH runner cache"
+      shell: bash
+      run: |  
+        ARCH=${{ inputs.arch }}
+        VERSION=${{ inputs.version }}
+
+        if [ -z $VERSION ]; then
+          VERSION=$(curl https://api.github.com/repos/yannh/kubeconform/releases/latest -sL | grep tag_name | sed -E 's/.*"([^"]+)".*/\1/' | cut -c 2-)
+        fi
+        
+        BIN_URL="https://github.com/yannh/kubeconform/releases/download/v${VERSION}/kubeconform-linux-${ARCH}.tar.gz"
+        BIN_DIR=$RUNNER_TOOL_CACHE/kubeconform/$VERSION/$ARCH
+        
+        if [[ ! -x "$BIN_DIR/kind" ]]; then
+          mkdir -p $BIN_DIR
+          cd $BIN_DIR
+          curl -sL $BIN_URL | tar xz
+          chmod +x kubeconform
+        fi
+        
+        echo "$BIN_DIR" >> "$GITHUB_PATH"

.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/policy/kubernetes.rego

@@ -1,51 +0,0 @@
-package kubernetes
-
-name = input.metadata.name
-
-kind = input.kind
-
-is_service {
-	input.kind = "Service"
-}
-
-is_deployment {
-	input.kind = "Deployment"
-}
-
-is_pod {
-	input.kind = "Pod"
-}
-
-split_image(image) = [image, "latest"] {
-	not contains(image, ":")
-}
-
-split_image(image) = [image_name, tag] {
-	[image_name, tag] = split(image, ":")
-}
-
-pod_containers(pod) = all_containers {
-	keys = {"containers", "initContainers"}
-	all_containers = [c | keys[k]; c = pod.spec[k][_]]
-}
-
-containers[container] {
-	pods[pod]
-	all_containers = pod_containers(pod)
-	container = all_containers[_]
-}
-
-containers[container] {
-	all_containers = pod_containers(input)
-	container = all_containers[_]
-}
-
-pods[pod] {
-	is_deployment
-	pod = input.spec.template
-}
-
-pods[pod] {
-	is_pod
-	pod = input
-}

.github/policy/rules.rego

@@ -1,43 +0,0 @@
-package main
-
-import data.kubernetes
-
-name = input.metadata.name
-
-# Deny containers with latest image tag
-deny[msg] {
-	kubernetes.containers[container]
-	[image_name, "latest"] = kubernetes.split_image(container.image)
-	msg = sprintf("%s in the %s %s has an image %s, using the latest tag", [container.name, kubernetes.kind, kubernetes.name, image_name])
-}
-
-# Deny services without app label selector
-service_labels {
-  input.spec.selector["app"]
-}
-deny[msg] {
-  kubernetes.is_service
-  not service_labels
-  msg = sprintf("Service %s should set app label selector", [name])
-}
-
-# Deny deployments without app label selector
-match_labels {
-  input.spec.selector.matchLabels["app"]
-}
-deny[msg] {
-  kubernetes.is_deployment
-  not match_labels
-  msg = sprintf("Service %s should set app label selector", [name])
-}
-
-# Warn if deployments have no prometheus pod annotations
-annotations {
-  input.spec.template.metadata.annotations["prometheus.io/scrape"]
-  input.spec.template.metadata.annotations["prometheus.io/port"]
-}
-warn[msg] {
-  kubernetes.is_deployment
-  not annotations
-  msg = sprintf("Deployment %s should set prometheus.io/scrape and prometheus.io/port pod annotations", [name])
-}

.github/workflows/cve-scan.yml

@@ -1,23 +1,23 @@
 name: cve-scan
 
 on:
+  workflow_dispatch:
   push:
     branches:
-      - 'master'
+      - "master"
+  pull_request:
+    branches:
+      - "master"
+
+permissions:
+  contents: read
 
 jobs:
-  trivy:
+  govulncheck:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-      - name: Build image
-        id: build
-        run: |
-          IMAGE=test/podinfo:${GITHUB_SHA}
-          docker build -t ${IMAGE} .
-          echo "::set-output name=image::$IMAGE"
-      - name: Scan image
-        uses: docker://docker.io/aquasec/trivy:latest
-        with:
-          args: --cache-dir /var/lib/trivy --no-progress --exit-code 1 --severity MEDIUM,HIGH,CRITICAL ${{ steps.build.outputs.image }}
+        uses: actions/checkout@v5
+      - name: Vulnerability scan
+        id: govulncheck
+        uses: golang/govulncheck-action@v1

.github/workflows/e2e.yml

@@ -6,35 +6,73 @@ on:
     branches:
       - 'master'
 
+permissions:
+  contents: read
+
 jobs:
   kind-helm:
-    strategy:
-      matrix:
-        helm-version:
-          - 2.16.12
-          - 3.3.4
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
       - name: Setup Kubernetes
-        uses: engineerd/setup-kind@v0.5.0
+        uses: helm/kind-action@v1.12.0
+        with:
+          cluster_name: kind
       - name: Build container image
         run: |
-          ./hack/build.sh
+          ./test/build.sh
           kind load docker-image test/podinfo:latest
       - name: Setup Helm
-        uses: ./.github/actions/helm
+        uses: azure/setup-helm@v4
         with:
-          helm-version: ${{ matrix.helm-version }}
-      - name: Install Tiller
-        if: ${{ startsWith(matrix.helm-version, '2') }}
-        run: ./hack/tiller.sh
+          version: v3.17.3
       - name: Deploy
-        run: ./hack/deploy.sh
+        run: ./test/deploy.sh
       - name: Run integration tests
-        run: ./hack/test.sh
+        run: ./test/test.sh
       - name: Debug failure
         if: failure()
         run: |
           kubectl logs -l app=podinfo || true
+  kind-timoni:
+    runs-on: ubuntu-latest
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
+    env:
+      PODINFO_IMAGE_URL: "test/podinfo"
+      PODINFO_MODULE_URL: "oci://localhost:5000/podinfo"
+      PODINFO_VERSION: "0.0.0-devel"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+      - name: Setup Timoni
+        uses: stefanprodan/timoni/actions/setup@main
+      - name: Setup Kubernetes
+        uses: helm/kind-action@v1.12.0
+        with:
+          cluster_name: kind
+      - name: Build container
+        run: |
+          docker build -t ${PODINFO_IMAGE_URL}:${PODINFO_VERSION} --build-arg "REVISION=${GITHUB_SHA}"  -f Dockerfile.xx .
+          kind load docker-image ${PODINFO_IMAGE_URL}:${PODINFO_VERSION}
+      - name: Vet module
+        run: |
+          timoni mod vet ./timoni/podinfo --debug
+      - name: Build module
+        run: |
+          timoni mod push ./timoni/podinfo ${PODINFO_MODULE_URL} -v ${PODINFO_VERSION}
+      - name: Apply bundle
+        run: |
+          timoni bundle apply -f ./timoni/bundles/test.podinfo.cue --runtime-from-env
+      - name: Verify status
+        run: |
+          timoni -n podinfo status backend
+          timoni -n podinfo status frontend
+      - name: Debug failure
+        if: failure()
+        run: |
+          kubectl -n podinfo get all || true

.github/workflows/release.yml

@@ -2,30 +2,59 @@ name: release
 
 on:
   push:
-    tags: '*'
+    tags:
+      - '*'
+
+permissions:
+  contents: read
 
 jobs:
   release:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write # needed to write releases
+      id-token: write # needed for keyless signing
+      packages: write # needed for ghcr access
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
+      - uses: sigstore/cosign-installer@v3
+      - uses: fluxcd/flux2/action@v2.6.4
+      - uses: stefanprodan/timoni/actions/setup@v0.25.2
+      - name: Setup Notation CLI
+        uses: notaryproject/notation-action/setup@v1
+        with:
+          version: "1.1.0"
+      - name: Setup Notation signing keys
+        run: |
+          mkdir -p ~/.config/notation/localkeys/
+          cp ./.notation/signingkeys.json ~/.config/notation/
+          cp ./.notation/notation.crt ~/.config/notation/localkeys/
+          echo "$NOTATION_KEY" > ~/.config/notation/localkeys/notation.key
+        env:
+          NOTATION_KEY: ${{ secrets.NOTATION_SIGNING_KEY }}
+      - name: Setup Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: 1.25.x
+      - name: Setup Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v3.17.3
       - name: Setup QEMU
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v3
         with:
           platforms: all
       - name: Setup Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v1
-        with:
-          buildkitd-flags: "--debug"
+        uses: docker/setup-buildx-action@v3
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v1
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.GHCR_TOKEN }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Login to Docker Hub
-        uses: docker/login-action@v1
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
@@ -36,30 +65,64 @@ jobs:
           if [[ $GITHUB_REF == refs/tags/* ]]; then
             VERSION=${GITHUB_REF/refs\/tags\//}
           fi
-          echo ::set-output name=BUILD_DATE::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
-          echo ::set-output name=VERSION::${VERSION}
-      - name: Publish multi-arch image
-        uses: docker/build-push-action@v2
+          echo "BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_OUTPUT
+          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
+          echo "REVISION=${GITHUB_SHA}" >> $GITHUB_OUTPUT
+      - name: Generate images meta
+        id: meta
+        uses: docker/metadata-action@v5
         with:
+          images: |
+            docker.io/stefanprodan/podinfo
+            ghcr.io/stefanprodan/podinfo
+          tags: |
+            type=raw,value=${{ steps.prep.outputs.VERSION }}
+            type=raw,value=latest
+      - name: Publish multi-arch image
+        uses: docker/build-push-action@v6
+        with:
+          sbom: true
+          provenance: true
           push: true
           builder: ${{ steps.buildx.outputs.name }}
           context: .
-          file: ./Dockerfile
+          file: ./Dockerfile.xx
+          build-args: |
+            REVISION=${{ steps.prep.outputs.REVISION }}
           platforms: linux/amd64,linux/arm/v7,linux/arm64
-          tags: |
-            docker.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }}
-            docker.io/stefanprodan/podinfo:latest
-            ghcr.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }}
-          labels: |
-            org.opencontainers.image.title=${{ github.event.repository.name }}
-            org.opencontainers.image.description=${{ github.event.repository.description }}
-            org.opencontainers.image.source=${{ github.event.repository.html_url }}
-            org.opencontainers.image.url=${{ github.event.repository.html_url }}
-            org.opencontainers.image.revision=${{ github.sha }}
-            org.opencontainers.image.version=${{ steps.prep.outputs.VERSION }}
-            org.opencontainers.image.created=${{ steps.prep.outputs.BUILD_DATE }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+      - name: Publish Timoni module to GHCR
+        run: |
+          timoni mod push ./timoni/podinfo oci://ghcr.io/stefanprodan/modules/podinfo \
+          --sign cosign \
+          --version ${{ steps.prep.outputs.VERSION }} \
+          -a 'org.opencontainers.image.source=https://github.com/stefanprodan/podinfo' \
+          -a 'org.opencontainers.image.licenses=Apache-2.0' \
+          -a 'org.opencontainers.image.description=A timoni.sh module for deploying Podinfo.' \
+          -a 'org.opencontainers.image.documentation=https://github.com/stefanprodan/podinfo/blob/main/timoni/podinfo/README.md'
+      - name: Publish Helm chart to GHCR
+        run: |
+          helm package charts/podinfo
+          helm push podinfo-${{ steps.prep.outputs.VERSION }}.tgz oci://ghcr.io/stefanprodan/charts
+          rm podinfo-${{ steps.prep.outputs.VERSION }}.tgz
+      - name: Publish Flux OCI artifact to GHCR
+        run: |
+          flux push artifact oci://ghcr.io/stefanprodan/manifests/podinfo:${{ steps.prep.outputs.VERSION }} \
+            --path="./kustomize" \
+            --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 artifacts with Cosign
+        env:
+          COSIGN_EXPERIMENTAL: 1
+        run: |
+          cosign sign docker.io/stefanprodan/podinfo:${{ steps.prep.outputs.VERSION }} --yes
+          cosign sign ghcr.io/stefanprodan/podinfo:${{ 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
       - name: Publish base image
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v6
         with:
           push: true
           builder: ${{ steps.buildx.outputs.name }}
@@ -71,15 +134,32 @@ jobs:
         uses: stefanprodan/helm-gh-pages@master
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: ./.github/actions/release-notes
-      - name: Generate release notes
+      - name: Publish config artifact
         run: |
-          echo 'CHANGELOG' > /tmp/release.txt
-          github-release-notes -org stefanprodan -repo podinfo -since-latest-release >> /tmp/release.txt
+          flux push artifact oci://ghcr.io/stefanprodan/podinfo-deploy:${{ steps.prep.outputs.VERSION }} \
+            --path="./kustomize" \
+            --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 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
+        env:
+          COSIGN_PASSWORD: ${{secrets.COSIGN_PASSWORD}}
+          COSIGN_KEY: ${{secrets.COSIGN_KEY}}
+      - name: Sign artifacts with Notation
+        run: |
+          notation sign --signature-format cose ghcr.io/stefanprodan/podinfo:${{ 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@v1
+        uses: goreleaser/goreleaser-action@v6
         with:
           version: latest
-          args: release --release-notes=/tmp/release.txt
+          args: release --skip=validate
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -6,38 +6,68 @@ on:
     branches:
       - 'master'
 
+permissions:
+  contents: read
+
+env:
+  KUBERNETES_VERSION: 1.31.0
+  HELM_VERSION: 3.17.3
+
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
-      - name: Restore Go cache
-        uses: actions/cache@v1
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: ${{ runner.os }}-go-
+        uses: actions/checkout@v5
       - name: Setup Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v6
         with:
-          go-version: 1.15.x
+          go-version: 1.25.x
+          cache-dependency-path: |
+            **/go.sum
+            **/go.mod
+      - name: Setup kubectl
+        uses: azure/setup-kubectl@v4
+        with:
+          version: v${{ env.KUBERNETES_VERSION }}
+      - name: Setup kubeconform
+        uses: ./.github/actions/kubeconform
+      - name: Setup Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: v${{ env.HELM_VERSION }}
+      - name: Setup CUE
+        uses: cue-lang/setup-cue@v1.0.1
+      - name: Setup Timoni
+        uses: stefanprodan/timoni/actions/setup@v0.25.2
       - name: Run unit tests
         run: make test
+      - name: Validate Helm chart
+        run: |
+          helm lint ./charts/podinfo/
+          helm template ./charts/podinfo/ | kubeconform -strict -summary -kubernetes-version ${{ env.KUBERNETES_VERSION }}
+      - name: Validate Kustomize overlay
+        run: |
+          kubectl kustomize ./kustomize/ | kubeconform -strict -summary -kubernetes-version ${{ env.KUBERNETES_VERSION }}
+      - name: Verify CUE formatting
+        working-directory: ./timoni/podinfo
+        run: |
+          cue fmt ./...
+          status=$(git status . --porcelain)
+          [[ -z "$status" ]] || {
+            echo "CUE files are not correctly formatted"
+            echo "$status"
+            git diff
+            exit 1
+          }
+      - name: Validate Timoni module
+        working-directory: ./timoni/podinfo
+        run: |
+          timoni mod lint . 
+          timoni build podinfo . -f test_values.cue | kubeconform -strict -summary -skip=ServiceMonitor -kubernetes-version ${{ env.KUBERNETES_VERSION }}
       - name: Check if working tree is dirty
         run: |
           if [[ $(git diff --stat) != '' ]]; then
             echo 'run make test and commit changes'
             exit 1
           fi
-      - name: Validate Helm chart
-        uses: stefanprodan/kube-tools@v1
-        with:
-          command: |
-            helmv3 template ./charts/podinfo | kubeval --strict
-      - name: Validate kustomization
-        uses: stefanprodan/kube-tools@v1
-        with:
-          command: |
-            kustomize build ./kustomize | kubeval --strict
-            kustomize build ./kustomize | conftest test -p .github/policy -

.gitignore

@@ -19,4 +19,10 @@ release/
 build/
 gcloud/
 dist/
-bin/
+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

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

.notation/signingkeys.json

@@ -0,0 +1,10 @@
+{
+    "default": "stefanprodan.com",
+    "keys": [
+        {
+            "name": "stefanprodan.com",
+            "keyPath": "/home/runner/.config/notation/localkeys/notation.key",
+            "certPath": "/home/runner/.config/notation/localkeys/notation.crt"
+        }
+    ]
+}

.notation/trustpolicy.json

@@ -0,0 +1,19 @@
+{
+    "version": "1.0",
+    "trustPolicies": [
+        {
+            "name": "stefanprodan.com",
+            "registryScopes": [
+                "ghcr.io/stefanprodan/podinfo-deploy",
+                "ghcr.io/stefanprodan/charts/podinfo"
+            ],
+            "signatureVerification": {
+                "level" : "strict"
+            },
+            "trustStores": [ "ca:stefanprodan.com" ],
+            "trustedIdentities": [
+                "x509.subject: C=RO, ST=BU, L=Bucharest, O=Notary, CN=stefanprodan.com"
+            ]
+        }
+    ]
+}

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.15-alpine as builder
+FROM golang:1.25-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:3.12
+FROM alpine:3.22
 
 ARG BUILD_DATE
 ARG VERSION
@@ -27,7 +27,7 @@ ARG REVISION
 LABEL maintainer="stefanprodan"
 
 RUN addgroup -S app \
-    && adduser -S -g app app \
+    && adduser -S -G app app \
     && apk --no-cache add \
     ca-certificates curl netcat-openbsd
 

Dockerfile.base

@@ -1,4 +1,4 @@
-FROM golang:1.15
+FROM golang:1.25
 
 WORKDIR /workspace
 

Dockerfile.xx

@@ -0,0 +1,53 @@
+ARG GO_VERSION=1.25
+ARG XX_VERSION=1.6.1
+
+FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
+
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION}-alpine as builder
+
+# Copy the build utilities.
+COPY --from=xx / /
+
+ARG TARGETPLATFORM
+ARG REVISION
+
+RUN mkdir -p /podinfo/
+
+WORKDIR /podinfo
+
+COPY . .
+
+RUN go mod download
+
+ENV CGO_ENABLED=0
+RUN xx-go build -ldflags "-s -w \
+    -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${REVISION}" \
+    -a -o bin/podinfo cmd/podinfo/*
+
+RUN xx-go build -ldflags "-s -w \
+    -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${REVISION}" \
+    -a -o bin/podcli cmd/podcli/*
+
+FROM alpine:3.22
+
+ARG BUILD_DATE
+ARG VERSION
+ARG REVISION
+
+LABEL maintainer="stefanprodan"
+
+RUN addgroup -S app \
+    && adduser -S -G app app \
+    && apk --no-cache add \
+    ca-certificates curl netcat-openbsd
+
+WORKDIR /home/app
+
+COPY --from=builder /podinfo/bin/podinfo .
+COPY --from=builder /podinfo/bin/podcli /usr/local/bin/podcli
+COPY ./ui ./ui
+RUN chown -R app:app ./
+
+USER app
+
+CMD ["./podinfo"]

Makefile

@@ -15,16 +15,22 @@ run:
 	--level=debug --grpc-port=9999 --backend-url=https://httpbin.org/status/401 --backend-url=https://httpbin.org/status/500 \
 	--ui-logo=https://raw.githubusercontent.com/stefanprodan/podinfo/gh-pages/cuddle_clap.gif $(EXTRA_RUN_ARGS)
 
-test:
-	go test -v -race ./...
+.PHONY: test
+test: tidy fmt vet
+	go test ./... -coverprofile cover.out
 
 build:
 	GIT_COMMIT=$$(git rev-list -1 HEAD) && CGO_ENABLED=0 go build  -ldflags "-s -w -X github.com/stefanprodan/podinfo/pkg/version.REVISION=$(GIT_COMMIT)" -a -o ./bin/podinfo ./cmd/podinfo/*
 	GIT_COMMIT=$$(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=1.25
+
+vet:
+	go vet ./...
+
 fmt:
-	gofmt -l -s -w ./
-	goimports -l -w ./
+	go fmt ./...
 
 build-charts:
 	helm lint charts/*
@@ -33,6 +39,13 @@ build-charts:
 build-container:
 	docker build -t $(DOCKER_IMAGE_NAME):$(VERSION) .
 
+build-xx:
+	docker buildx build \
+	--platform=linux/amd64 \
+	-t $(DOCKER_IMAGE_NAME):$(VERSION) \
+	--load \
+	-f Dockerfile.xx .
+
 build-base:
 	docker build -f Dockerfile.base -t $(DOCKER_REPOSITORY)/podinfo-base:latest .
 
@@ -58,22 +71,29 @@ push-container:
 version-set:
 	@next="$(TAG)" && \
 	current="$(VERSION)" && \
-	sed -i '' "s/$$current/$$next/g" pkg/version/version.go && \
-	sed -i '' "s/tag: $$current/tag: $$next/g" charts/podinfo/values.yaml && \
-	sed -i '' "s/tag: $$current/tag: $$next/g" charts/podinfo/values-prod.yaml && \
-	sed -i '' "s/appVersion: $$current/appVersion: $$next/g" charts/podinfo/Chart.yaml && \
-	sed -i '' "s/version: $$current/version: $$next/g" charts/podinfo/Chart.yaml && \
-	sed -i '' "s/podinfo:$$current/podinfo:$$next/g" kustomize/deployment.yaml && \
-	sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/webapp/frontend/deployment.yaml && \
-	sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/webapp/backend/deployment.yaml && \
-	sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/bases/frontend/deployment.yaml && \
-	sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/bases/backend/deployment.yaml && \
-	echo "Version $$next set in code, deployment, chart and kustomize"
+	/usr/bin/sed -i '' "s/$$current/$$next/g" pkg/version/version.go && \
+	/usr/bin/sed -i '' "s/tag: $$current/tag: $$next/g" charts/podinfo/values.yaml && \
+	/usr/bin/sed -i '' "s/tag: $$current/tag: $$next/g" charts/podinfo/values-prod.yaml && \
+	/usr/bin/sed -i '' "s/appVersion: $$current/appVersion: $$next/g" charts/podinfo/Chart.yaml && \
+	/usr/bin/sed -i '' "s/version: $$current/version: $$next/g" charts/podinfo/Chart.yaml && \
+	/usr/bin/sed -i '' "s/podinfo:$$current/podinfo:$$next/g" kustomize/deployment.yaml && \
+	/usr/bin/sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/webapp/frontend/deployment.yaml && \
+	/usr/bin/sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/webapp/backend/deployment.yaml && \
+	/usr/bin/sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/bases/frontend/deployment.yaml && \
+	/usr/bin/sed -i '' "s/podinfo:$$current/podinfo:$$next/g" deploy/bases/backend/deployment.yaml && \
+	/usr/bin/sed -i '' "s/$$current/$$next/g" timoni/podinfo/values.cue && \
+	echo "Version $$next set in code, deployment, module, chart and kustomize"
 
 release:
-	git tag $(VERSION)
+	git tag -s -m $(VERSION) $(VERSION)
 	git push origin $(VERSION)
 
 swagger:
-	go get github.com/swaggo/swag/cmd/swag
-	cd pkg/api && $$(go env GOPATH)/bin/swag init -g server.go
+	go install github.com/swaggo/swag/cmd/swag@latest
+	go get github.com/swaggo/swag/gen@latest
+	go get github.com/swaggo/swag/cmd/swag@latest
+	cd pkg/api/http && $$(go env GOPATH)/bin/swag init -g server.go
+
+.PHONY: timoni-build
+timoni-build:
+	@timoni build podinfo ./timoni/podinfo -f ./timoni/podinfo/debug_values.cue

README.md

@@ -7,24 +7,25 @@
 [![Docker Pulls](https://img.shields.io/docker/pulls/stefanprodan/podinfo)](https://hub.docker.com/r/stefanprodan/podinfo)
 
 Podinfo is a tiny web application made with Go that showcases best practices of running microservices in Kubernetes.
+Podinfo is used by CNCF projects like [Flux](https://github.com/fluxcd/flux2) and [Flagger](https://github.com/fluxcd/flagger)
+for end-to-end testing and workshops.
 
 Specifications:
 
 * Health checks (readiness and liveness)
 * Graceful shutdown on interrupt signals
 * File watcher for secrets and configmaps
-* Instrumented with Prometheus
-* Tracing with Istio and Jaeger
-* Linkerd service profile
+* Instrumented with Prometheus and Open Telemetry
 * Structured logging with zap 
 * 12-factor app with viper
 * Fault injection (random errors and latency)
 * Swagger docs
-* Helm and Kustomize installers
+* Timoni, Helm and Kustomize installers
 * End-to-End testing with Kubernetes Kind and Helm
-* Kustomize testing with GitHub Actions and Open Policy Agent
-* Multi-arch container image with Docker buildx and Github Actions
-* CVE scanning with trivy
+* 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 govulncheck
 
 Web API:
 
@@ -56,6 +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:
 
@@ -65,17 +76,26 @@ To access the Swagger UI open `<podinfo-host>/swagger/index.html` in a browser.
 
 ### Guides
 
-* [GitOps Progressive Deliver with Flagger, Helm v3 and Linkerd](https://helm.workshop.flagger.dev/intro/)
-* [GitOps Progressive Deliver on EKS with Flagger and AppMesh](https://eks.handson.flagger.dev/prerequisites/)
-* [Automated canary deployments with Flagger and Istio](https://medium.com/google-cloud/automated-canary-deployments-with-flagger-and-istio-ac747827f9d1)
-* [Kubernetes autoscaling with Istio metrics](https://medium.com/google-cloud/kubernetes-autoscaling-with-istio-metrics-76442253a45a)
-* [Autoscaling EKS on Fargate with custom metrics](https://aws.amazon.com/blogs/containers/autoscaling-eks-on-fargate-with-custom-metrics/)
-* [Managing Helm releases the GitOps way](https://medium.com/google-cloud/managing-helm-releases-the-gitops-way-207a6ac6ff0e)
-* [Securing EKS Ingress With Contour And Let’s Encrypt The GitOps Way](https://aws.amazon.com/blogs/containers/securing-eks-ingress-contour-lets-encrypt-gitops/)
+* [Getting started with Timoni](https://timoni.sh/quickstart/)
+* [Getting started with Flux](https://fluxcd.io/flux/get-started/)
+* [Progressive Deliver with Flagger and Linkerd](https://docs.flagger.app/tutorials/linkerd-progressive-delivery)
+* [Automated canary deployments with Kubernetes Gateway API](https://docs.flagger.app/tutorials/gatewayapi-progressive-delivery)
 
 ### Install
 
-Helm:
+To install Podinfo on Kubernetes the minimum required version is **Kubernetes v1.23**.
+
+#### Timoni
+
+Install with [Timoni](https://timoni.sh):
+
+```bash
+timoni -n default apply podinfo oci://ghcr.io/stefanprodan/modules/podinfo
+```
+
+#### Helm
+
+Install from github.io:
 
 ```bash
 helm repo add podinfo https://stefanprodan.github.io/podinfo
@@ -86,23 +106,107 @@ helm upgrade --install --wait frontend \
 --set backend=http://backend-podinfo:9898/echo \
 podinfo/podinfo
 
-# Test pods have hook-delete-policy: hook-succeeded
-helm test frontend
+helm test frontend --namespace test
 
 helm upgrade --install --wait backend \
 --namespace test \
---set hpa.enabled=true \
+--set redis.enabled=true \
 podinfo/podinfo
 ```
 
-Kustomize:
+Install from ghcr.io:
+
+```bash
+helm upgrade --install --wait podinfo --namespace default \
+oci://ghcr.io/stefanprodan/charts/podinfo
+```
+
+#### Kustomize
 
 ```bash
 kubectl apply -k github.com/stefanprodan/podinfo//kustomize
 ```
 
-Docker:
+#### Docker
 
 ```bash
 docker run -dp 9898:9898 stefanprodan/podinfo
-```
+```
+
+### Continuous Delivery
+
+In order to install podinfo on a Kubernetes cluster and keep it up to date with the latest
+release in an automated manner, you can use [Flux](https://fluxcd.io).
+
+Install the Flux CLI on MacOS and Linux using Homebrew:
+
+```sh
+brew install fluxcd/tap/flux
+```
+
+Install the Flux controllers needed for Helm operations:
+
+```sh
+flux install \
+--namespace=flux-system \
+--network-policy=false \
+--components=source-controller,helm-controller
+```
+
+Add podinfo's Helm repository to your cluster and
+configure Flux to check for new chart releases every ten minutes:
+
+```sh
+flux create source helm podinfo \
+--namespace=default \
+--url=https://stefanprodan.github.io/podinfo \
+--interval=10m
+```
+
+Create a `podinfo-values.yaml` file locally:
+
+```sh
+cat > podinfo-values.yaml <<EOL
+replicaCount: 2
+resources:
+  limits:
+    memory: 256Mi
+  requests:
+    cpu: 100m
+    memory: 64Mi
+EOL
+```
+
+Create a Helm release for deploying podinfo in the default namespace:
+
+```sh
+flux create helmrelease podinfo \
+--namespace=default \
+--source=HelmRepository/podinfo \
+--release-name=podinfo \
+--chart=podinfo \
+--chart-version=">5.0.0" \
+--values=podinfo-values.yaml
+```
+
+Based on the above definition, Flux will upgrade the release automatically
+when a new version of podinfo is released. If the upgrade fails, Flux
+can [rollback](https://toolkit.fluxcd.io/components/helm/helmreleases/#configuring-failure-remediation)
+to the previous working version.
+
+You can check what version is currently deployed with:
+
+```sh
+flux get helmreleases -n default
+```
+
+To delete podinfo's Helm repository and release from your cluster run:
+
+```sh
+flux -n default delete source helm podinfo
+flux -n default delete helmrelease podinfo
+```
+
+If you wish to manage the lifecycle of your applications in a **GitOps** manner, check out
+this [workflow example](https://github.com/fluxcd/flux2-kustomize-helm-example)
+for multi-env deployments with Flux, Kustomize and Helm.

charts/podinfo/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
-version: 5.1.1
-appVersion: 5.1.1
+version: 6.9.2
+appVersion: 6.9.2
 name: podinfo
 engine: gotpl
 description: Podinfo Helm chart for Kubernetes
@@ -10,3 +10,4 @@ maintainers:
   name: stefanprodan
 sources:
 - https://github.com/stefanprodan/podinfo
+kubeVersion: ">=1.23.0-0"

charts/podinfo/README.md

@@ -1,16 +1,36 @@
 # Podinfo
 
-Podinfo is a tiny web application made with Go 
+Podinfo is a tiny web application made with Go
 that showcases best practices of running microservices in Kubernetes.
 
+Podinfo is used by CNCF projects like [Flux](https://github.com/fluxcd/flux2)
+and [Flagger](https://github.com/fluxcd/flagger)
+for end-to-end testing and workshops.
+
 ## Installing the Chart
 
-To install the chart with the release name `my-release`:
+The Podinfo charts are published to
+[GitHub Container Registry](https://github.com/stefanprodan/podinfo/pkgs/container/charts%2Fpodinfo)
+and signed with [Cosign](https://github.com/sigstore/cosign) & GitHub Actions OIDC.
+
+To install the chart with the release name `my-release` from GHCR:
+
+```console
+$ helm upgrade -i my-release oci://ghcr.io/stefanprodan/charts/podinfo
+```
+
+To verify a chart with Cosign:
+
+```console
+$ cosign verify ghcr.io/stefanprodan/charts/podinfo:<VERSION>
+```
+
+Alternatively, you can install the chart from GitHub pages:
 
 ```console
 $ helm repo add podinfo https://stefanprodan.github.io/podinfo
 
-$ helm upgrade -i my-release podinfo/podinfo 
+$ helm upgrade -i my-release podinfo/podinfo
 ```
 
 The command deploys podinfo on the Kubernetes cluster in the default namespace.
@@ -30,58 +50,67 @@ The command removes all the Kubernetes components associated with the chart and
 
 The following tables lists the configurable parameters of the podinfo chart and their default values.
 
-Parameter | Default | Description
---- | --- | ---
-`replicaCount` | `1` | Desired number of pods
-`logLevel` | `info` | Log level: `debug`, `info`, `warn`, `error`, `flat` or `panic`
-`backend` | `None` | Echo backend URL
-`backends` | `[]` | Array of echo backend URLs
-`cache` | `None` | Redis address in the format `<host>:<port>`
-`redis.enabled` | `false` | Create Redis deployment for caching purposes
-`ui.color` | `#34577c` |  UI color
-`ui.message` | `None` |  UI greetings message
-`ui.logo` | `None` |  UI logo
-`faults.delay` | `false` | Random HTTP response delays between 0 and 5 seconds
-`faults.error` | `false` | 1/3 chances of a random HTTP response error
-`faults.unhealthy` | `false` | When set, the healthy state is never reached
-`faults.unready` | `false` | When set, the ready state is never reached
-`faults.testFail` | `false` | When set, a helm test is included which always fails
-`faults.testTimeout` | `false` | When set, a helm test is included which always times out
-`h2c.enabled` | `false` | Allow upgrading to h2c
-`image.repository` | `stefanprodan/podinfo` | Image repository
-`image.tag` | `<VERSION>` | Image tag
-`image.pullPolicy` | `IfNotPresent` | Image pull policy
-`service.enabled` | `true` | Create a Kubernetes Service, should be disabled when using [Flagger](https://flagger.app)
-`service.type` | `ClusterIP` | Type of the Kubernetes Service
-`service.metricsPort` | `9797` | Prometheus metrics endpoint port
-`service.httpPort` | `9898` | Container HTTP port
-`service.externalPort` | `9898` | ClusterIP HTTP port
-`service.grpcPort` | `9999` | ClusterIP gPRC port
-`service.grpcService` | `podinfo` | gPRC service name
-`service.nodePort` | `31198` | NodePort for the HTTP endpoint
-`hpa.enabled` | `false` | Enables the Kubernetes HPA
-`hpa.maxReplicas` | `10` | Maximum amount of pods
-`hpa.cpu` | `None` | Target CPU usage per pod
-`hpa.memory` | `None` | Target memory usage per pod
-`hpa.requests` | `None` | Target HTTP requests per second per pod
-`serviceAccount.enabled` | `false` | Whether a service account should be created
-`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
-`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
-`ingress.enabled` | `false` | Enables Ingress
-`ingress.annotations` | `{}` | Ingress annotations
-`ingress.path` | `/*` | Ingress path
-`ingress.hosts` | `[]` | Ingress accepted hosts
-`ingress.tls` | `[]` | Ingress TLS configuration
-`resources.requests.cpu` | `1m` | Pod CPU request
-`resources.requests.memory` | `16Mi` | Pod memory request
-`resources.limits.cpu` | `None` | Pod CPU limit
-`resources.limits.memory` | `None` | Pod memory limit
-`nodeSelector` | `{}` | Node labels for pod assignment
-`tolerations` | `[]` | List of node taints to tolerate
-`affinity` | `None` | Node/pod affinities
-`podAnnotations` | `{}` | Pod annotations
+| Parameter                         | Default                | Description                                                                                                            |
+| --------------------------------- | ---------------------- | ---------------------------------------------------------------------------------------------------------------------- |
+| `replicaCount`                    | `1`                    | Desired number of pods                                                                                                 |
+| `logLevel`                        | `info`                 | Log level: `debug`, `info`, `warn`, `error`                                                                            |
+| `backend`                         | `None`                 | Echo backend URL                                                                                                       |
+| `backends`                        | `[]`                   | Array of echo backend URLs                                                                                             |
+| `cache`                           | `None`                 | Redis address in the format `tcp://<host>:<port>`                                                                      |
+| `redis.enabled`                   | `false`                | Create Redis deployment for caching purposes                                                                           |
+| `ui.color`                        | `#34577c`              | UI color                                                                                                               |
+| `ui.message`                      | `None`                 | UI greetings message                                                                                                   |
+| `ui.logo`                         | `None`                 | UI logo                                                                                                                |
+| `faults.delay`                    | `false`                | Random HTTP response delays between 0 and 5 seconds                                                                    |
+| `faults.error`                    | `false`                | 1/3 chances of a random HTTP response error                                                                            |
+| `faults.unhealthy`                | `false`                | When set, the healthy state is never reached                                                                           |
+| `faults.unready`                  | `false`                | When set, the ready state is never reached                                                                             |
+| `faults.testFail`                 | `false`                | When set, a helm test is included which always fails                                                                   |
+| `faults.testTimeout`              | `false`                | When set, a helm test is included which always times out                                                               |
+| `image.repository`                | `stefanprodan/podinfo` | Image repository                                                                                                       |
+| `image.tag`                       | `<VERSION>`            | Image tag                                                                                                              |
+| `image.pullPolicy`                | `IfNotPresent`         | Image pull policy                                                                                                      |
+| `service.enabled`                 | `true`                 | Create a Kubernetes Service, should be disabled when using [Flagger](https://flagger.app)                              |
+| `service.type`                    | `ClusterIP`            | Type of the Kubernetes Service                                                                                         |
+| `service.metricsPort`             | `9797`                 | Prometheus metrics endpoint port                                                                                       |
+| `service.httpPort`                | `9898`                 | Container HTTP port                                                                                                    |
+| `service.externalPort`            | `9898`                 | ClusterIP HTTP port                                                                                                    |
+| `service.grpcPort`                | `9999`                 | ClusterIP gPRC port                                                                                                    |
+| `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                                                                                               |
+| `hpa.memory`                      | `None`                 | Target memory usage per pod                                                                                            |
+| `hpa.requests`                    | `None`                 | Target HTTP requests per second per pod                                                                                |
+| `serviceAccount.enabled`          | `false`                | Whether a service account should be created                                                                            |
+| `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.additionalLabels`        | `{}`                   | Add additional labels to the ingress                                                                                   |
+| `ingress.annotations`             | `{}`                   | Ingress annotations                                                                                                    |
+| `ingress.hosts`                   | `[]`                   | Ingress accepted hosts                                                                                                 |
+| `ingress.tls`                     | `[]`                   | Ingress TLS configuration                                                                                              |
+| `resources.requests.cpu`          | `1m`                   | Pod CPU request                                                                                                        |
+| `resources.requests.memory`       | `16Mi`                 | Pod memory request                                                                                                     |
+| `resources.limits.cpu`            | `None`                 | Pod CPU limit                                                                                                          |
+| `resources.limits.memory`         | `None`                 | Pod memory limit                                                                                                       |
+| `nodeSelector`                    | `{}`                   | Node labels for pod assignment                                                                                         |
+| `tolerations`                     | `[]`                   | List of node taints to tolerate                                                                                        |
+| `affinity`                        | `None`                 | Node/pod affinities                                                                                                    |
+| `podAnnotations`                  | `{}`                   | Pod annotations                                                                                                        |
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
 
@@ -104,14 +133,3 @@ $ helm install my-release podinfo/podinfo -f values.yaml
 ```
 
 > **Tip**: You can use the default [values.yaml](values.yaml)
-
-## Upgrading the chart
-
-### To =< 5.0.0
-
-Version 5.0.0 is a major update.
-
-* The chart now follows the new Kubernetes label recommendations:
-<https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/>
-
-The simplest way to update is to do a force upgrade, which recreates the resources by doing a delete and an install.

charts/podinfo/templates/NOTES.txt

@@ -1,18 +1,20 @@
 1. Get the application URL by running these commands:
 {{- if .Values.ingress.enabled }}
-{{- range .Values.ingress.hosts }}
-  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
 {{- end }}
 {{- else if contains "NodePort" .Values.service.type }}
-  export NODE_PORT=$(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:
@@ -34,7 +35,10 @@ spec:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
-          {{- if (or .Values.service.hostPort .Values.tls.hostPort) }}
+          {{- if .Values.securityContext }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          {{- else if (or .Values.service.hostPort .Values.tls.hostPort) }}
           securityContext:
             allowPrivilegeEscalation: true
             capabilities:
@@ -46,6 +50,9 @@ spec:
           command:
             - ./podinfo
             - --port={{ .Values.service.httpPort | default 9898 }}
+            {{- if .Values.host }}
+            - --host={{ .Values.host }}
+            {{- end }}
             {{- if .Values.tls.enabled }}
             - --secure-port={{ .Values.tls.port }}
             {{- end }}
@@ -67,7 +74,7 @@ spec:
             {{- if .Values.cache }}
             - --cache-server={{ .Values.cache }}
             {{- else if .Values.redis.enabled }}
-            - --cache-server={{ template "podinfo.fullname" . }}:6379
+            - --cache-server=tcp://{{ template "podinfo.fullname" . }}-redis:6379
             {{- end }}
             - --level={{ .Values.logLevel }}
             - --random-delay={{ .Values.faults.delay }}
@@ -81,6 +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
@@ -98,6 +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 }}
@@ -123,6 +142,22 @@ spec:
               containerPort: {{ .Values.service.grpcPort }}
               protocol: TCP
             {{- end }}
+          {{- if .Values.probes.startup.enable }}
+          startupProbe:
+            exec:
+              command:
+              - podcli
+              - check
+              - http
+              - localhost:{{ .Values.service.httpPort | default 9898 }}/healthz
+            {{- with .Values.probes.startup }}
+            initialDelaySeconds: {{ .initialDelaySeconds | default 1 }}
+            timeoutSeconds: {{ .timeoutSeconds | default 5 }}
+            failureThreshold: {{ .failureThreshold | default 3 }}
+            successThreshold: {{ .successThreshold | default 1 }}
+            periodSeconds: {{ .periodSeconds | default 10 }}
+            {{- end }}
+            {{- end }}
           livenessProbe:
             exec:
               command:
@@ -130,8 +165,13 @@ spec:
               - check
               - http
               - localhost:{{ .Values.service.httpPort | default 9898 }}/healthz
-            initialDelaySeconds: 1
-            timeoutSeconds: 5
+            {{- with .Values.probes.liveness }}
+            initialDelaySeconds: {{ .initialDelaySeconds | default 1 }}
+            timeoutSeconds: {{ .timeoutSeconds | default 5 }}
+            failureThreshold: {{ .failureThreshold | default 3 }}
+            successThreshold: {{ .successThreshold | default 1 }}
+            periodSeconds: {{ .periodSeconds | default 10 }}
+            {{- end }}
           readinessProbe:
             exec:
               command:
@@ -139,8 +179,13 @@ spec:
               - check
               - http
               - localhost:{{ .Values.service.httpPort | default 9898 }}/readyz
-            initialDelaySeconds: 1
-            timeoutSeconds: 5
+            {{- with .Values.probes.readiness }}
+            initialDelaySeconds: {{ .initialDelaySeconds | default 1 }}
+            timeoutSeconds: {{ .timeoutSeconds | default 5 }}
+            failureThreshold: {{ .failureThreshold | default 3 }}
+            successThreshold: {{ .successThreshold | default 1 }}
+            periodSeconds: {{ .periodSeconds | default 10 }}
+            {{- end }}
           volumeMounts:
           - name: data
             mountPath: /data
@@ -151,6 +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 }}
@@ -171,3 +220,7 @@ spec:
         secret:
           secretName: {{ template "podinfo.tlsSecretName" . }}
       {{- end }}
+    {{- with .Values.topologySpreadConstraints }}
+      topologySpreadConstraints:
+{{- toYaml . | nindent 8 }}
+    {{- end }}

charts/podinfo/templates/hpa.yaml

@@ -1,8 +1,9 @@
 {{- if .Values.hpa.enabled -}}
-apiVersion: autoscaling/v2beta2
+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

@@ -1,43 +1,45 @@
 {{- if .Values.ingress.enabled -}}
 {{- $fullName := include "podinfo.fullname" . -}}
-{{- $ingressPath := .Values.ingress.path -}}
-apiVersion: networking.k8s.io/v1beta1
+{{- $svcPort := .Values.service.externalPort -}}
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: {{ $fullName }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
-{{- with .Values.ingress.annotations }}
+    {{- with .Values.ingress.additionalLabels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+  {{- with .Values.ingress.annotations }}
   annotations:
-{{ toYaml . | indent 4 }}
-{{- end }}
-spec:
-{{- if .Values.ingress.tls }}
-  tls:
-  {{- range .Values.ingress.tls }}
-    - hosts:
-      {{- range .hosts }}
-        - {{ . }}
-      {{- end }}
-      secretName: {{ .secretName }}
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
   {{- end }}
-{{- end }}
   rules:
-  {{- range .Values.ingress.hosts }}
-    - host: {{ . }}
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
       http:
         paths:
-          - path: {{ $ingressPath }}
+          {{- range .paths }}
+          - path: {{ .path }}
+            pathType: {{ .pathType }}
             backend:
-              serviceName: {{ $fullName }}
-              servicePort: http
-  {{- end }}
-  {{- if not .Values.ingress.hosts }}
-    - http:
-        paths:
-          - path: {{ $ingressPath }}
-            backend:
-              serviceName: {{ $fullName }}
-              servicePort: http
-  {{- end }}
+              service:
+                name: {{ $fullName }}
+                port:
+                  number: {{ $svcPort }}
+          {{- end }}
+    {{- end }}
 {{- end }}

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

@@ -3,8 +3,13 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  namespace: {{ include "podinfo.namespace" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
+{{- with .Values.service.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
 spec:
   type: {{ .Values.service.type }}
   ports:

charts/podinfo/templates/serviceaccount.yaml

@@ -5,4 +5,8 @@ metadata:
   name: {{ template "podinfo.serviceAccountName" . }}
   labels:
     {{- include "podinfo.labels" . | nindent 4 }}
+{{- with .Values.serviceAccount.imagePullSecrets }}
+imagePullSecrets:
+  {{- toYaml . | nindent 2 }}
 {{- end -}}
+{{- end -}}

charts/podinfo/templates/servicemonitor.yaml

@@ -3,14 +3,21 @@ 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 }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
 spec:
   endpoints:
     - path: /metrics
       port: http
       interval: {{ .Values.serviceMonitor.interval }}
+  namespaceSelector:
+    matchNames:
+      - {{ include "podinfo.namespace" . }}
   selector:
     matchLabels:
-      app: {{ template "podinfo.fullname" . }}
+      {{- include "podinfo.selectorLabels" . | nindent 6 }}
 {{- end }}

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

@@ -1,15 +1,22 @@
-# Prod values for podinfo.
+# Production values for podinfo.
+# Includes Redis deployment and memory limits.
 
 replicaCount: 1
 logLevel: info
 backend: #http://backend-podinfo:9898/echo
 backends: []
 
+image:
+  repository: ghcr.io/stefanprodan/podinfo
+  tag: 6.9.2
+  pullPolicy: IfNotPresent
+
 ui:
   color: "#34577c"
   message: ""
   logo: ""
 
+# failure conditions
 faults:
   delay: false
   error: false
@@ -18,16 +25,10 @@ faults:
   testFail: false
   testTimeout: false
 
-h2c:
-  enabled: false
-
-image:
-  repository: ghcr.io/stefanprodan/podinfo
-  tag: 5.1.1
-  pullPolicy: IfNotPresent
-
+# Kubernetes Service settings
 service:
   enabled: true
+  annotations: {}
   type: ClusterIP
   metricsPort: 9797
   httpPort: 9898
@@ -36,6 +37,45 @@ service:
   grpcService: podinfo
   nodePort: 31198
 
+# enable h2c protocol (non-TLS version of HTTP/2)
+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
+  # the name of the secret used to mount the certificate key pair
+  secretName:
+  # the path where the certificate key pair will be mounted
+  certPath: /data/cert
+  # the port used to host the tls endpoint on the service
+  port: 9899
+  # the port used to bind the tls port to the host
+  # NOTE: requires privileged container with NET_BIND_SERVICE capability -- this is useful for testing
+  # in local clusters such as kind without port forwarding
+  hostPort:
+
+# create a certificate manager certificate (cert-manager required)
+certificate:
+  create: false
+  # the issuer used to issue the certificate
+  issuerRef:
+    kind: ClusterIssuer
+    name: self-signed
+  # the hostname / subject alternative names for the certificate
+  dnsNames:
+    - podinfo
+
 # metrics-server add-on required
 hpa:
   enabled: true
@@ -47,13 +87,13 @@ hpa:
   # average http requests per second per pod (k8s-prometheus-adapter)
   requests:
 
-# Redis address in the format <host>:<port>
+# Redis address in the format tcp://<host>:<port>
 cache: ""
 # Redis deployment
 redis:
   enabled: true
   repository: redis
-  tag: 6.0.8
+  tag: 7.0.7
 
 serviceAccount:
   # Specifies whether a service account should be created
@@ -61,27 +101,41 @@ serviceAccount:
   # The name of the service account to use.
   # If not set and create is true, a name is generated using the fullname template
   name:
+  # List of image pull secrets if pulling from private registries
+  imagePullSecrets: []
+
+# set container security context
+securityContext: {}
+
+# set pod security context
+podSecurityContext: {}
+
+ingress:
+  enabled: false
+  className: ""
+  additionalLabels: {}
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: podinfo.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
 
 linkerd:
   profile:
     enabled: false
 
+# create Prometheus Operator monitor
 serviceMonitor:
   enabled: false
   interval: 15s
-
-ingress:
-  enabled: false
-  annotations: {}
-    # kubernetes.io/ingress.class: nginx
-  # kubernetes.io/tls-acme: "true"
-  path: /*
-  hosts: []
-  #    - podinfo.local
-  tls: []
-  #  - secretName: chart-example-tls
-  #    hosts:
-  #      - chart-example.local
+  additionalLabels: {}
 
 resources:
   limits:
@@ -90,6 +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: []
@@ -97,3 +159,25 @@ tolerations: []
 affinity: {}
 
 podAnnotations: {}
+
+# https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
+probes:
+  readiness:
+    initialDelaySeconds: 1
+    timeoutSeconds: 5
+    failureThreshold: 3
+    successThreshold: 1
+    periodSeconds: 10
+  liveness:
+    initialDelaySeconds: 1
+    timeoutSeconds: 5
+    failureThreshold: 3
+    successThreshold: 1
+    periodSeconds: 10
+  startup:
+    enable: false
+    initialDelaySeconds: 10
+    timeoutSeconds: 5
+    failureThreshold: 20
+    successThreshold: 1
+    periodSeconds: 10

charts/podinfo/values-secure.yaml

@@ -1,127 +0,0 @@
-# Default values for podinfo.
-
-replicaCount: 1
-logLevel: info
-backend: #http://backend-podinfo:9898/echo
-backends: []
-
-ui:
-  color: "#34577c"
-  message: ""
-  logo: ""
-
-faults:
-  delay: false
-  error: false
-  unhealthy: false
-  unready: false
-  testFail: false
-  testTimeout: false
-
-h2c:
-  enabled: false
-
-image:
-  repository: ghcr.io/stefanprodan/podinfo
-  tag: 5.0.3
-  pullPolicy: IfNotPresent
-
-service:
-  enabled: true
-  type: ClusterIP
-  metricsPort: 9797
-  httpPort: 9898
-  externalPort: 9898
-  grpcPort: 9999
-  grpcService: podinfo
-  nodePort: 31198
-  # the port used to bind the http port to the host
-  # NOTE: requires privileged container with NET_BIND_SERVICE capability -- this is useful for testing
-  # in local clusters such as kind without port forwarding
-  hostPort:
-
-# enable tls on the podinfo service
-tls:
-  enabled: true
-  # the name of the secret used to mount the certificate key pair
-  secretName:
-  # the path where the certificate key pair will be mounted
-  certPath: /data/cert
-  # the port used to host the tls endpoint on the service
-  port: 9899
-  # the port used to bind the tls port to the host
-  # NOTE: requires privileged container with NET_BIND_SERVICE capability -- this is useful for testing
-  # in local clusters such as kind without port forwarding
-  hostPort:
-
-# create a certificate manager certificate
-certificate:
-  create: true
-  # the issuer used to issue the certificate
-  issuerRef:
-    kind: ClusterIssuer
-    name: self-signed
-  # the hostname / subject alternative names for the certificate
-  dnsNames:
-    - podinfo
-
-# metrics-server add-on required
-hpa:
-  enabled: false
-  maxReplicas: 10
-  # average total CPU usage per pod (1-100)
-  cpu:
-  # average memory usage per pod (100Mi-1Gi)
-  memory:
-  # average http requests per second per pod (k8s-prometheus-adapter)
-  requests:
-
-# Redis address in the format <host>:<port>
-cache: ""
-# Redis deployment
-redis:
-  enabled: false
-  repository: redis
-  tag: 6.0.8
-
-serviceAccount:
-  # Specifies whether a service account should be created
-  enabled: false
-  # The name of the service account to use.
-  # If not set and create is true, a name is generated using the fullname template
-  name:
-
-linkerd:
-  profile:
-    enabled: false
-
-serviceMonitor:
-  enabled: false
-  interval: 15s
-
-ingress:
-  enabled: false
-  annotations: {}
-    # kubernetes.io/ingress.class: nginx
-    # kubernetes.io/tls-acme: "true"
-  path: /*
-  hosts: []
-#    - podinfo.local
-  tls: []
-  #  - secretName: chart-example-tls
-  #    hosts:
-  #      - chart-example.local
-
-resources:
-  limits:
-  requests:
-    cpu: 1m
-    memory: 16Mi
-
-nodeSelector: {}
-
-tolerations: []
-
-affinity: {}
-
-podAnnotations: {}

charts/podinfo/values.yaml

@@ -2,14 +2,21 @@
 
 replicaCount: 1
 logLevel: info
+host: #0.0.0.0
 backend: #http://backend-podinfo:9898/echo
 backends: []
 
+image:
+  repository: ghcr.io/stefanprodan/podinfo
+  tag: 6.9.2
+  pullPolicy: IfNotPresent
+
 ui:
   color: "#34577c"
   message: ""
   logo: ""
 
+# failure conditions
 faults:
   delay: false
   error: false
@@ -18,16 +25,10 @@ faults:
   testFail: false
   testTimeout: false
 
-h2c:
-  enabled: false
-
-image:
-  repository: ghcr.io/stefanprodan/podinfo
-  tag: 5.1.1
-  pullPolicy: IfNotPresent
-
+# Kubernetes Service settings
 service:
   enabled: true
+  annotations: {}
   type: ClusterIP
   metricsPort: 9797
   httpPort: 9898
@@ -40,6 +41,20 @@ service:
   # in local clusters such as kind without port forwarding
   hostPort:
 
+# enable h2c protocol (non-TLS version of HTTP/2)
+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
@@ -54,7 +69,7 @@ tls:
   # in local clusters such as kind without port forwarding
   hostPort:
 
-# create a certificate manager certificate
+# create a certificate manager certificate (cert-manager required)
 certificate:
   create: false
   # the issuer used to issue the certificate
@@ -76,13 +91,13 @@ hpa:
   # average http requests per second per pod (k8s-prometheus-adapter)
   requests:
 
-# Redis address in the format <host>:<port>
+# Redis address in the format tcp://<host>:<port>
 cache: ""
 # Redis deployment
 redis:
   enabled: false
   repository: redis
-  tag: 6.0.8
+  tag: 7.0.7
 
 serviceAccount:
   # Specifies whether a service account should be created
@@ -90,27 +105,41 @@ serviceAccount:
   # The name of the service account to use.
   # If not set and create is true, a name is generated using the fullname template
   name:
+  # List of image pull secrets if pulling from private registries
+  imagePullSecrets: []
+
+# set container security context
+securityContext: {}
+
+# set pod security context
+podSecurityContext: {}
+
+ingress:
+  enabled: false
+  className: ""
+  additionalLabels: {}
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: podinfo.local
+      paths:
+        - path: /
+          pathType: ImplementationSpecific
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
 
 linkerd:
   profile:
     enabled: false
 
+# create Prometheus Operator monitor
 serviceMonitor:
   enabled: false
   interval: 15s
-
-ingress:
-  enabled: false
-  annotations: {}
-    # kubernetes.io/ingress.class: nginx
-    # kubernetes.io/tls-acme: "true"
-  path: /*
-  hosts: []
-#    - podinfo.local
-  tls: []
-  #  - secretName: chart-example-tls
-  #    hosts:
-  #      - chart-example.local
+  additionalLabels: {}
 
 resources:
   limits:
@@ -118,6 +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: []
@@ -125,3 +162,32 @@ tolerations: []
 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:
+    initialDelaySeconds: 1
+    timeoutSeconds: 5
+    failureThreshold: 3
+    successThreshold: 1
+    periodSeconds: 10
+  liveness:
+    initialDelaySeconds: 1
+    timeoutSeconds: 5
+    failureThreshold: 3
+    successThreshold: 1
+    periodSeconds: 10
+  startup:
+    enable: false
+    initialDelaySeconds: 10
+    timeoutSeconds: 5
+    failureThreshold: 20
+    successThreshold: 1
+    periodSeconds: 10

cmd/podinfo/main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -14,25 +13,27 @@ 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"
 )
 
 func main() {
 	// flags definition
 	fs := pflag.NewFlagSet("default", pflag.ContinueOnError)
-	fs.Int("port", 9898, "HTTP port")
+	fs.String("host", "", "Host to bind service to")
+	fs.Int("port", 9898, "HTTP port to bind service to")
 	fs.Int("secure-port", 0, "HTTPS port")
 	fs.Int("port-metrics", 0, "metrics port")
 	fs.Int("grpc-port", 0, "gRPC port")
 	fs.String("grpc-service-name", "podinfo", "gPRC service name")
-	fs.String("level", "info", "log level debug, info, warn, error, flat or panic")
+	fs.String("level", "info", "log level debug, info, warn, error, fatal or panic")
 	fs.StringSlice("backend-url", []string{}, "backend service URL")
 	fs.Duration("http-client-timeout", 2*time.Minute, "client timeout duration")
 	fs.Duration("http-server-timeout", 30*time.Second, "server read and write timeout duration")
-	fs.Duration("http-server-shutdown-timeout", 5*time.Second, "server graceful shutdown timeout duration")
+	fs.Duration("server-shutdown-timeout", 5*time.Second, "server graceful shutdown timeout duration")
 	fs.String("data-path", "/data", "data local path")
 	fs.String("config-path", "", "config dir path")
 	fs.String("cert-path", "/data/cert", "certificate path for HTTPS port")
@@ -51,7 +52,8 @@ func main() {
 	fs.Bool("unready", false, "when set, ready state is never reached")
 	fs.Int("stress-cpu", 0, "number of CPU cores with 100 load")
 	fs.Int("stress-memory", 0, "MB of data to load into memory")
-	fs.String("cache-server", "", "Redis address in the format <host>:<port>")
+	fs.String("cache-server", "", "Redis address in the format 'tcp://<host>:<port>'")
+	fs.String("otel-service-name", "", "service name for reporting to open telemetry address, when not set tracing is disabled")
 
 	versionFlag := fs.BoolP("version", "v", false, "get version number")
 
@@ -89,8 +91,6 @@ func main() {
 		if readErr := viper.ReadInConfig(); readErr != nil {
 			fmt.Printf("Error reading config file, %v\n", readErr)
 		}
-	}else{
-		fmt.Printf("Error to open config file, %v\n",fileErr)
 	}
 
 	// configure logging
@@ -135,13 +135,16 @@ func main() {
 	}
 
 	// start gRPC server
+	var grpcServer *go_grpc.Server
 	if grpcCfg.Port > 0 {
 		grpcSrv, _ := grpc.NewServer(&grpcCfg, logger)
-		go grpcSrv.ListenAndServe()
+		//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))
 	}
@@ -154,9 +157,13 @@ func main() {
 	)
 
 	// start HTTP server
-	srv, _ := api.NewServer(&srvCfg, logger)
+	srv, _ := http.NewServer(&srvCfg, logger)
+	httpServer, httpsServer, healthy, ready := srv.ListenAndServe()
+
+	// graceful shutdown
 	stopCh := signals.SetupSignalHandler()
-	srv.ListenAndServe(stopCh)
+	sd, _ := signals.NewShutdown(srvCfg.ServerShutdownTimeout, logger)
+	sd.Graceful(stopCh, httpServer, httpsServer, grpcServer, healthy, ready)
 }
 
 func initZap(logLevel string) (*zap.Logger, error) {
@@ -238,12 +245,12 @@ func beginStressTest(cpus int, mem int, logger *zap.Logger) {
 			logger.Error("memory stress failed", zap.Error(err))
 		}
 
-		stressMemoryPayload, err = ioutil.ReadFile(path)
+		stressMemoryPayload, err = os.ReadFile(path)
 		f.Close()
 		os.Remove(path)
 		if err != nil {
 			logger.Error("memory stress failed", zap.Error(err))
 		}
-		logger.Info("starting CPU stress", zap.Int("memory", len(stressMemoryPayload)))
+		logger.Info("starting MEMORY stress", zap.Int("memory", len(stressMemoryPayload)))
 	}
 }

deploy/bases/backend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: backend
-        image: ghcr.io/stefanprodan/podinfo:5.1.1
+        image: ghcr.io/stefanprodan/podinfo:6.9.2
         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/backend/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: backend

deploy/bases/cache/deployment.yaml

@@ -13,7 +13,7 @@ spec:
     spec:
       containers:
         - name: redis
-          image: redis:6.0.1
+          image: redis:7.0.7
           imagePullPolicy: IfNotPresent
           command:
             - redis-server

deploy/bases/frontend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: frontend
-        image: ghcr.io/stefanprodan/podinfo:5.1.1
+        image: ghcr.io/stefanprodan/podinfo:6.9.2
         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/bases/frontend/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: frontend

deploy/bases/frontend/kustomization.yaml

@@ -4,4 +4,6 @@ resources:
   - service.yaml
   - deployment.yaml
   - hpa.yaml
-
+images:
+  - name: ghcr.io/stefanprodan/podinfo
+    newTag: 6.9.2

deploy/kind.sh

@@ -1,5 +1,20 @@
 #! /usr/bin/env sh
 
+mkdir -p bin
+cat > ./bin/kind.yaml <<EOF
+apiVersion: kind.x-k8s.io/v1alpha4
+kind: Cluster
+nodes:
+- role: control-plane
+  extraPortMappings:
+  - containerPort: 80
+    hostPort: 80
+    protocol: TCP
+  - containerPort: 443
+    hostPort: 443
+    protocol: TCP
+EOF
+
 # create the kind cluster
 kind create cluster --config=kind.yaml
 

deploy/kind.yaml

@@ -1,11 +0,0 @@
-kind: Cluster
-apiVersion: kind.x-k8s.io/v1alpha4
-nodes:
-- role: control-plane
-  extraPortMappings:
-  - containerPort: 80
-    hostPort: 80
-    protocol: TCP
-  - containerPort: 443
-    hostPort: 443
-    protocol: TCP

deploy/secure/backend/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: backend

deploy/secure/frontend/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: frontend

deploy/webapp/backend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: backend
-        image: ghcr.io/stefanprodan/podinfo:5.1.1
+        image: ghcr.io/stefanprodan/podinfo:6.9.2
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/webapp/backend/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: backend

deploy/webapp/frontend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: frontend
-        image: ghcr.io/stefanprodan/podinfo:5.1.1
+        image: ghcr.io/stefanprodan/podinfo:6.9.2
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/webapp/frontend/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: frontend

go.mod

@@ -1,25 +1,79 @@
 module github.com/stefanprodan/podinfo
 
-go 1.15
+go 1.25
 
 require (
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751
-	github.com/chzyer/logex v1.1.10 // indirect
-	github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
-	github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 // indirect
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible
-	github.com/fatih/color v1.9.0
-	github.com/fsnotify/fsnotify v1.4.9
-	github.com/gomodule/redigo v1.8.2
-	github.com/gorilla/mux v1.8.0
-	github.com/gorilla/websocket v1.4.2
-	github.com/prometheus/client_golang v1.8.0
-	github.com/spf13/cobra v1.1.1
-	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.7.1
-	github.com/swaggo/http-swagger v0.0.0-20200308142732-58ac5e232fba
-	github.com/swaggo/swag v1.6.9
-	go.uber.org/zap v1.16.0
-	golang.org/x/net v0.0.0-20201027133719-8eef5233e2a1
-	google.golang.org/grpc v1.33.1
+	github.com/chzyer/readline v1.5.1
+	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 v1.5.3
+	github.com/prometheus/client_golang v1.22.0
+	github.com/spf13/cobra v1.10.1
+	github.com/spf13/pflag v1.0.10
+	github.com/spf13/viper v1.21.0
+	github.com/swaggo/http-swagger v1.3.4
+	github.com/swaggo/swag v1.16.4
+	go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux v0.63.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.63.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0
+	go.opentelemetry.io/contrib/propagators/aws v1.38.0
+	go.opentelemetry.io/contrib/propagators/b3 v1.38.0
+	go.opentelemetry.io/contrib/propagators/jaeger v1.38.0
+	go.opentelemetry.io/contrib/propagators/ot v1.38.0
+	go.opentelemetry.io/otel v1.38.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.38.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.38.0
+	go.opentelemetry.io/otel/sdk v1.38.0
+	go.opentelemetry.io/otel/trace v1.38.0
+	go.uber.org/zap v1.27.0
+	golang.org/x/net v0.44.0
+	google.golang.org/grpc v1.75.1
+	google.golang.org/protobuf v1.36.9
+)
+
+require (
+	github.com/KyleBanks/depth v1.2.1 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-openapi/jsonpointer v0.21.1 // 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 v2.4.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.2 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/josharian/intern v1.0.0 // 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/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 v0.11.0 // indirect
+	github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/swaggo/files v1.0.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel/metric v1.38.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.7.1 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	golang.org/x/tools v0.36.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250825161204-c5933d9347a5 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250825161204-c5933d9347a5 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,687 +1,214 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go/bigquery v1.0.1 h1:hL+ycaJpVE9M7nLoiXb/Pn10ENE2u+oddxbD8uu0ZVU=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/datastore v1.0.0 h1:Kt+gOPPp2LEPWp8CSfxhsM8ik9CcyE/gYu+0r+RnZvM=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
-cloud.google.com/go/pubsub v1.0.1 h1:W9tAK3E57P75u0XLLR82LZyw8VpAnhmyTOxW9qzmyj8=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/storage v1.0.0 h1:VV2nUM3wwLLGh9lSABFgZMjInyUbJeaRSE64WuAIQ+4=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc=
 github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
-github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
-github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
-github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
-github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
-github.com/aws/aws-sdk-go v1.27.0 h1:0xphMHGMLBrPMfxR2AmVjZKcMEESEgWF8Kru94BNByk=
-github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
-github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
-github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 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/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
-github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
-github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
-github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
-github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
-github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
-github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
-github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
-github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
-github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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-gopkg.in/go-playground/validator.v8 v8.18.2/go.mod h1:RX2a/7Ha8BgOhfk7j780h4/u/RRjR0eouCJSH80/M2Y=
-gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
-gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
-gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
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-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
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hack/tiller.sh

@@ -1,7 +0,0 @@
-#! /usr/bin/env sh
-
-set -e
-
-kubectl --namespace kube-system create sa tiller
-kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
-helm init --service-account tiller --upgrade --wait

kustomize/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: podinfod
-        image: ghcr.io/stefanprodan/podinfo:5.1.1
+        image: ghcr.io/stefanprodan/podinfo:6.9.2
         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/hpa.yaml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: podinfo

kustomize/kustomization.yaml

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

otel/Makefile

@@ -0,0 +1,20 @@
+DC=docker-compose -f docker-compose.yaml
+
+.PHONY: help
+.DEFAULT_GOAL := help
+
+help:
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+stop: ## Stop all Docker Containers run in Compose
+	$(DC) stop
+
+clean: stop ## Clean all Docker Containers and Volumes
+	$(DC) down --rmi local --remove-orphans -v
+	$(DC) rm -f -v
+
+build: clean ## Rebuild the Docker Image for use by Compose
+	$(DC) build
+
+run: stop ## Run the Application
+	$(DC) up

otel/README.md

@@ -0,0 +1,37 @@
+# Tracing Demo
+
+The directory contains sample [OpenTelemetry Collector](https://github.com/open-telemetry/opentelemetry-collector)
+and [Jaeger](https://www.jaegertracing.io) configurations for a tracing demo.
+
+## Configuration
+
+The provided [docker-compose.yaml](docker-compose.yaml) sets up 4 Containers
+
+1. PodInfo Frontend on port 9898
+2. PodInfo Backend on port 9899
+3. OpenTelemetry Collector listening on port 4317 for GRPC
+4. Jaeger all-in-one listening on multiple ports
+
+## How does it work?
+
+The frontend pods are configured to call onto the backend pods. Both the podinfo
+pods are configured to send traces over to the collector at port 4317 using GRPC.
+The collector forwards all received spans to Jaeger over port 14250 and Jaeger
+exposes a UI over port `16686`.
+
+## Running it locally
+
+1. Start all the Containers
+```shell
+make run
+```
+2. Send some sample requests
+```shell
+curl -v http://localhost:9898/status/200
+curl -X POST -v http://localhost:9898/api/echo
+```
+3. Visit `http://localhost:16686/` to see the spans
+4. Stop all the containers
+```shell
+make stop
+```

otel/docker-compose.yaml

@@ -0,0 +1,35 @@
+version: '2'
+
+services:
+  podinfo_frontend:
+    build: ..
+    command: ./podinfo --backend-url http://podinfo_backend:9899/status/200 --otel-service-name=podinfo_frontend
+    environment:
+      - OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=http://otel:4317
+    ports:
+      - "9898:9898"
+  podinfo_backend:
+    build: ..
+    command: ./podinfo --port 9899 --otel-service-name=podinfo_backend
+    environment:
+      - OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=http://otel:4317
+    ports:
+      - "9899:9899"
+  otel:
+    command: --config otel-config.yaml
+    image: otel/opentelemetry-collector:0.41.0
+    ports:
+      - "4317:4317"
+    volumes:
+      - ${PWD}/otel-config.yaml:/otel-config.yaml
+  jaeger:
+    image: jaegertracing/all-in-one:1.29.0
+    ports:
+      - "5775:5775/udp"
+      - "6831:6831/udp"
+      - "6832:6832/udp"
+      - "5778:5778"
+      - "16686:16686"
+      - "14268:14268"
+      - "14250:14250"
+      - "9411:9411"

otel/otel-config.yaml

@@ -0,0 +1,26 @@
+receivers:
+  otlp:
+    protocols:
+      grpc:
+      http:
+
+processors:
+
+exporters:
+  jaeger:
+    endpoint: jaeger:14250
+    tls:
+      insecure: true
+
+extensions:
+  health_check:
+  pprof:
+  zpages:
+
+service:
+  extensions: [health_check,pprof,zpages]
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: []
+      exporters: [jaeger]

pkg/api/echo_test.go

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

pkg/api/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"`
+}