Sign only GHCR artifacts with Notation

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 $tmpDir
-}
-
-main
-echo "::add-path::$BIN_DIR"
-echo "::add-path::$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/bin"

.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/entrypoint.sh

@@ -20,5 +20,6 @@ main() {
 }
 
 main
-echo "::add-path::$BIN_DIR"
-echo "::add-path::$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/bin"
+
+echo "$BIN_DIR" >> $GITHUB_PATH
+echo "$RUNNER_WORKSPACE/$(basename $GITHUB_REPOSITORY)/bin" >> $GITHUB_PATH

.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

@@ -3,21 +3,29 @@ name: cve-scan
 on:
   push:
     branches:
-      - 'master'
+      - "master"
+
+permissions:
+  contents: read
 
 jobs:
   trivy:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - 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
+          echo "image=$IMAGE" >> $GITHUB_OUTPUT
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@master
         with:
-          args: --cache-dir /var/lib/trivy --no-progress --exit-code 1 --severity MEDIUM,HIGH,CRITICAL ${{ steps.build.outputs.image }}
+          image-ref: ${{ steps.build.outputs.image }}
+          format: table
+          exit-code: "1"
+          ignore-unfixed: true
+          vuln-type: os,library
+          severity: CRITICAL,HIGH

.github/workflows/e2e.yml

@@ -6,45 +6,75 @@ on:
     branches:
       - 'master'
 
+permissions:
+  contents: read
+
 jobs:
   kind-helm:
-    strategy:
-      matrix:
-        helm-version:
-          - 2.16.6
-          - 3.2.1
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup Kubernetes
-        uses: engineerd/setup-kind@v0.4.0
+        uses: helm/kind-action@v1.8.0
+        with:
+          version: v0.20.0
+          cluster_name: kind
       - name: Build container image
         run: |
-          GIT_COMMIT=$(git rev-list -1 HEAD) && \
-          docker build -t test/podinfo:latest --build-arg "REVISION=${GIT_COMMIT}" .
+          ./test/build.sh
           kind load docker-image test/podinfo:latest
       - name: Setup Helm
-        uses: ./.github/actions/helm
+        uses: azure/setup-helm@v3
         with:
-          helm-version: ${{ matrix.helm-version }}
-      - name: Install Tiller
-        if: ${{ startsWith(matrix.helm-version, '2') }}
-        run: |
-          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
+          version: v3.12.3
       - name: Deploy
-        run: |
-          helm upgrade -i podinfo ./charts/podinfo \
-          --set image.repository=test/podinfo \
-          --set image.tag=latest \
-          --namespace=default
+        run: ./test/deploy.sh
       - name: Run integration tests
-        run: |
-          kubectl rollout status deployment/podinfo --timeout=1m
-          helm test podinfo
+        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@v4
+      - name: Setup Timoni
+        uses: stefanprodan/timoni/actions/setup@main
+      - name: Setup Kubernetes
+        uses: helm/kind-action@v1.8.0
+        with:
+          version: v0.20.0
+          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

@@ -2,45 +2,169 @@ 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: crazy-max/ghaction-docker-buildx@v1
-      - name: Publish multi-arch image
+      - uses: actions/checkout@v4
+      - uses: sigstore/cosign-installer@v3
+      - uses: fluxcd/flux2/action@main
+      - uses: stefanprodan/timoni/actions/setup@main
+      - name: Setup Notation CLI
+        uses: notaryproject/notation-action/setup@v1
+        with:
+          version: "1.1.0"
+      - name: Setup Notation signing keys
         run: |
-          echo "${{ secrets.DOCKER_PASSWORD }}" | docker login --username "${{ secrets.DOCKER_USERNAME }}" --password-stdin
-          docker buildx build --platform "linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64" \
-            --output "type=image,push=true" \
-            --build-arg "REVISION=${GITHUB_SHA}" \
-            --build-arg "VERSION=${GITHUB_REF#refs/tags/}" \
-            --build-arg "BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
-            --tag "docker.io/stefanprodan/podinfo:${GITHUB_REF#refs/tags/}" \
-            --tag "docker.io/stefanprodan/podinfo:latest" \
-            --file Dockerfile .
-      - name: Publish base image
-        uses: docker/build-push-action@v1
+          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@v4
+        with:
+          go-version: 1.21.x
+      - name: Setup Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: v3.12.3
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: all
+      - name: Setup Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: stefanprodan/podinfo-base
-          tags: latest
+      - name: Prepare
+        id: prep
+        run: |
+          VERSION=sha-${GITHUB_SHA::8}
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF/refs\/tags\//}
+          fi
+          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@v5
+        with:
+          sbom: true
+          provenance: true
+          push: true
+          builder: ${{ steps.buildx.outputs.name }}
+          context: .
+          file: ./Dockerfile.xx
+          build-args: |
+            REVISION=${{ steps.prep.outputs.REVISION }}
+          platforms: linux/amd64,linux/arm/v7,linux/arm64
+          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@v5
+        with:
+          push: true
+          builder: ${{ steps.buildx.outputs.name }}
+          context: .
+          platforms: linux/amd64
+          file: ./Dockerfile.base
+          tags: docker.io/stefanprodan/podinfo-base:latest
       - name: Publish helm chart
         uses: stefanprodan/helm-gh-pages@master
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Publish config artifact
+        run: |
+          flux push artifact oci://ghcr.io/stefanprodan/podinfo-deploy:${{ 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
       - uses: ./.github/actions/release-notes
       - name: Generate release notes
         run: |
           echo 'CHANGELOG' > /tmp/release.txt
           github-release-notes -org stefanprodan -repo podinfo -since-latest-release >> /tmp/release.txt
       - name: Publish release
-        uses: goreleaser/goreleaser-action@v1
+        uses: goreleaser/goreleaser-action@v5
         with:
           version: latest
-          args: release --release-notes=/tmp/release.txt
+          args: release --release-notes=/tmp/release.txt --skip-validate
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -6,38 +6,67 @@ on:
     branches:
       - 'master'
 
+permissions:
+  contents: read
+
+env:
+  KUBERNETES_VERSION: 1.26.0
+
 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: ${{ runner.os }}-go-
+        uses: actions/checkout@v4
       - name: Setup Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
-          go-version: 1.14.x
+          go-version: 1.21.x
+          cache-dependency-path: |
+            **/go.sum
+            **/go.mod
+      - name: Setup kubectl
+        uses: azure/setup-kubectl@v3
+        with:
+          version: v${{ env.KUBERNETES_VERSION }}
+      - name: Setup kubeconform
+        uses: ./.github/actions/kubeconform
+      - name: Setup Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: v3.10.3
+      - name: Setup CUE
+        uses: cue-lang/setup-cue@v1.0.0
+      - name: Setup Timoni
+        uses: stefanprodan/timoni/actions/setup@main
       - 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

.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:1.14-alpine as builder
+FROM golang:1.21-alpine as builder
 
 ARG REVISION
 
@@ -18,27 +18,18 @@ 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:3.11
+FROM alpine:3.19
 
 ARG BUILD_DATE
 ARG VERSION
 ARG REVISION
 
-LABEL maintainer="stefanprodan" \
-  org.opencontainers.image.created=$BUILD_DATE \
-  org.opencontainers.image.url="https://github.com/stefanprodan/podinfo" \
-  org.opencontainers.image.source="https://github.com/stefanprodan/podinfo" \
-  org.opencontainers.image.version=$VERSION \
-  org.opencontainers.image.revision=$REVISION \
-  org.opencontainers.image.vendor="stefanprodan" \
-  org.opencontainers.image.title="podinfo" \
-  org.opencontainers.image.description="Go microservice template for Kubernetes" \
-  org.opencontainers.image.licenses="MIT"
+LABEL maintainer="stefanprodan"
 
 RUN addgroup -S app \
-    && adduser -S -g app app \
+    && adduser -S -G app app \
     && apk --no-cache add \
-    curl openssl netcat-openbsd
+    ca-certificates curl netcat-openbsd
 
 WORKDIR /home/app
 

Dockerfile.base

@@ -1,4 +1,4 @@
-FROM golang:1.14
+FROM golang:1.21
 
 WORKDIR /workspace
 

Dockerfile.xx

@@ -0,0 +1,53 @@
+ARG GO_VERSION=1.21
+ARG XX_VERSION=1.3.0
+
+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:3.19
+
+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"]

LICENSE

@@ -1,21 +1,201 @@
-MIT License
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
-Copyright (c) 2018 Stefan Prodan
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+   1. Definitions.
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2018 Stefan Prodan. All rights reserved.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

Makefile

@@ -15,13 +15,20 @@ 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)
 
+.PHONY: test
 test:
-	go test -v -race ./...
+	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=1.21
+
+vet:
+	go vet ./...
+
 fmt:
 	gofmt -l -s -w ./
 	goimports -l -w ./
@@ -33,6 +40,13 @@ 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 .
 
@@ -58,21 +72,29 @@ 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/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 && $$(go env GOPATH)/bin/swag init -g server.go
+	go install github.com/swaggo/swag/cmd/swag@latest
+	go get github.com/swaggo/swag/gen@latest
+	go get github.com/swaggo/swag/cmd/swag@latest
+	cd pkg/api && $$(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
+* Container image signing with Sigstore cosign
+* SBOMs and SLSA Provenance embedded in the container image
+* CVE scanning with Trivy
 
 Web API:
 
@@ -56,6 +57,8 @@ 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
 
 Web UI:
 
@@ -65,17 +68,26 @@ 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 +98,107 @@ 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: 4.0.4
-appVersion: 4.0.4
+version: 6.6.0
+appVersion: 6.6.0
 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/LICENSE

@@ -0,0 +1,201 @@
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+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
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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.
@@ -30,57 +50,62 @@ 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>`
-`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)                                                                     |
+| `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                                                                |
+| `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,
 

charts/podinfo/templates/NOTES.txt

@@ -1,7 +1,9 @@
 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" . }})

charts/podinfo/templates/_helpers.tpl

@@ -1,10 +1,9 @@
-{{/* vim: set filetype=mustache: */}}
 {{/*
 Expand the name of the chart.
 */}}
 {{- define "podinfo.name" -}}
-{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
 
 {{/*
 Create a default fully qualified app name.
@@ -12,32 +11,59 @@ We truncate at 63 chars because some Kubernetes name fields are limited to this
 If release name contains chart name it will be used as a full name.
 */}}
 {{- define "podinfo.fullname" -}}
-{{- if .Values.fullnameOverride -}}
-{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
-{{- else -}}
-{{- $name := default .Chart.Name .Values.nameOverride -}}
-{{- if contains $name .Release.Name -}}
-{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
-{{- else -}}
-{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
-{{- end -}}
-{{- end -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
 
 {{/*
 Create chart name and version as used by the chart label.
 */}}
 {{- define "podinfo.chart" -}}
-{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
-{{- end -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "podinfo.labels" -}}
+helm.sh/chart: {{ include "podinfo.chart" . }}
+{{ include "podinfo.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "podinfo.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "podinfo.fullname" . }}
+{{- end }}
 
 {{/*
 Create the name of the service account to use
 */}}
 {{- define "podinfo.serviceAccountName" -}}
-{{- if .Values.serviceAccount.enabled -}}
-    {{ default (include "podinfo.fullname" .) .Values.serviceAccount.name }}
-{{- else -}}
-    {{ default "default" .Values.serviceAccount.name }}
-{{- end -}}
-{{- end -}}
+{{- if .Values.serviceAccount.enabled }}
+{{- default (include "podinfo.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the tls secret for secure port
+*/}}
+{{- define "podinfo.tlsSecretName" -}}
+{{- $fullname := include "podinfo.fullname" . -}}
+{{- default (printf "%s-tls" $fullname) .Values.tls.secretName }}
+{{- end }}

charts/podinfo/templates/certificate.yaml

@@ -0,0 +1,16 @@
+{{- if .Values.certificate.create -}}
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: {{ template "podinfo.fullname" . }}
+  labels:
+    {{- include "podinfo.labels" . | nindent 4 }}
+spec:
+  dnsNames:
+  {{- range .Values.certificate.dnsNames }}
+    - {{ . | quote }}
+  {{- end }}
+  secretName: {{ template "podinfo.tlsSecretName" . }}
+  issuerRef:
+  {{- .Values.certificate.issuerRef | toYaml | trimSuffix "\n" | nindent 4 }}
+{{- end }}

charts/podinfo/templates/deployment.yaml

@@ -3,10 +3,7 @@ kind: Deployment
 metadata:
   name: {{ template "podinfo.fullname" . }}
   labels:
-    app: {{ template "podinfo.fullname" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
+    {{- include "podinfo.labels" . | nindent 4 }}
 spec:
   {{- if not .Values.hpa.enabled }}
   replicas: {{ .Values.replicaCount }}
@@ -17,11 +14,11 @@ spec:
       maxUnavailable: 1
   selector:
     matchLabels:
-      app: {{ template "podinfo.fullname" . }}
+      {{- include "podinfo.selectorLabels" . | nindent 6 }}
   template:
     metadata:
       labels:
-        app: {{ template "podinfo.fullname" . }}
+        {{- include "podinfo.selectorLabels" . | nindent 8 }}
       annotations:
         prometheus.io/scrape: "true"
         prometheus.io/port: "{{ .Values.service.httpPort }}"
@@ -37,9 +34,30 @@ spec:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
+          {{- if .Values.securityContext }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          {{- else if (or .Values.service.hostPort .Values.tls.hostPort) }}
+          securityContext:
+            allowPrivilegeEscalation: true
+            capabilities:
+              drop:
+                - ALL
+              add:
+                - NET_BIND_SERVICE
+          {{- end }}
           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 }}
+            {{- if .Values.tls.certPath }}
+            - --cert-path={{ .Values.tls.certPath }}
+            {{- end }}
             {{- if .Values.service.metricsPort }}
             - --port-metrics={{ .Values.service.metricsPort }}
             {{- end }}
@@ -54,6 +72,8 @@ spec:
             {{- end }}
             {{- if .Values.cache }}
             - --cache-server={{ .Values.cache }}
+            {{- else if .Values.redis.enabled }}
+            - --cache-server=tcp://{{ template "podinfo.fullname" . }}-redis:6379
             {{- end }}
             - --level={{ .Values.logLevel }}
             - --random-delay={{ .Values.faults.delay }}
@@ -78,7 +98,7 @@ spec:
           {{- end }}
           {{- if .Values.ui.color }}
           - name: PODINFO_UI_COLOR
-            value: {{ .Values.ui.color }}
+            value: {{ quote .Values.ui.color }}
           {{- end }}
           {{- if .Values.backend }}
           - name: PODINFO_BACKEND_URL
@@ -88,6 +108,17 @@ spec:
             - name: http
               containerPort: {{ .Values.service.httpPort | default 9898 }}
               protocol: TCP
+              {{- if .Values.service.hostPort }}
+              hostPort: {{ .Values.service.hostPort }}
+              {{- end }}
+            {{- if .Values.tls.enabled }}
+            - name: https
+              containerPort: {{ .Values.tls.port | default 9899 }}
+              protocol: TCP
+              {{- if .Values.tls.hostPort }}
+              hostPort: {{ .Values.tls.hostPort }}
+              {{- end }}
+            {{- end }}
             {{- if .Values.service.metricsPort }}
             - name: http-metrics
               containerPort: {{ .Values.service.metricsPort }}
@@ -98,6 +129,22 @@ 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:
@@ -105,8 +152,13 @@ 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:
@@ -114,11 +166,21 @@ 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
+          {{- if .Values.tls.enabled }}
+          - name: tls
+            mountPath: {{ .Values.tls.certPath | default "/data/cert" }}
+            readOnly: true
+          {{- end }}
           resources:
 {{ toYaml .Values.resources | indent 12 }}
     {{- with .Values.nodeSelector }}
@@ -136,3 +198,8 @@ spec:
       volumes:
       - name: data
         emptyDir: {}
+      {{- if .Values.tls.enabled }}
+      - name: tls
+        secret:
+          secretName: {{ template "podinfo.tlsSecretName" . }}
+      {{- end }}

charts/podinfo/templates/hpa.yaml

@@ -1,8 +1,10 @@
 {{- if .Values.hpa.enabled -}}
-apiVersion: autoscaling/v2beta1
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ template "podinfo.fullname" . }}
+  labels:
+    {{- include "podinfo.labels" . | nindent 4 }}  
 spec:
   scaleTargetRef:
     apiVersion: apps/v1
@@ -15,18 +17,25 @@ spec:
   - type: Resource
     resource:
       name: cpu
-      targetAverageUtilization: {{ .Values.hpa.cpu }}
+      target:
+        type: Utilization
+        averageUtilization: {{ .Values.hpa.cpu }}
   {{- end }}
   {{- if .Values.hpa.memory }}
   - type: Resource
     resource:
       name: memory
-      targetAverageValue: {{ .Values.hpa.memory }}
+      target:
+        type: AverageValue
+        averageValue: {{ .Values.hpa.memory }}
   {{- end }}
   {{- if .Values.hpa.requests }}
-  - type: Pod
-      pods:
-        metricName: http_requests
-        targetAverageValue: {{ .Values.hpa.requests }}
+  - type: Pods
+    pods:
+      metric:
+        name: http_requests
+      target:
+        type: AverageValue
+        averageValue: {{ .Values.hpa.requests }}
   {{- end }}
 {{- end }}

charts/podinfo/templates/ingress.yaml

@@ -1,46 +1,44 @@
 {{- 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 }}
   labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
-{{- with .Values.ingress.annotations }}
+    {{- include "podinfo.labels" . | nindent 4 }}
+    {{- 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

@@ -3,6 +3,8 @@ apiVersion: linkerd.io/v1alpha2
 kind: ServiceProfile
 metadata:
   name: {{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
+  labels:
+    {{- include "podinfo.labels" . | nindent 4 }}  
 spec:
   routes:
     - condition:

charts/podinfo/templates/redis/config.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.redis.enabled -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "podinfo.fullname" . }}-redis
+data:
+  redis.conf: |
+    maxmemory 64mb
+    maxmemory-policy allkeys-lru
+    save ""
+    appendonly no
+{{- end }}

charts/podinfo/templates/redis/deployment.yaml

@@ -0,0 +1,68 @@
+{{- if .Values.redis.enabled -}}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "podinfo.fullname" . }}-redis
+  labels:
+    app: {{ template "podinfo.fullname" . }}-redis
+spec:
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: {{ template "podinfo.fullname" . }}-redis
+  template:
+    metadata:
+      labels:
+        app: {{ template "podinfo.fullname" . }}-redis
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/redis/config.yaml") . | sha256sum | quote }}
+    spec:
+      {{- if .Values.serviceAccount.enabled }}
+      serviceAccountName: {{ template "podinfo.serviceAccountName" . }}
+      {{- end }}
+      containers:
+        - name: redis
+          image: "{{ .Values.redis.repository }}:{{ .Values.redis.tag }}"
+          imagePullPolicy: IfNotPresent
+          command:
+            - redis-server
+            - "/redis-master/redis.conf"
+          ports:
+            - name: redis
+              containerPort: 6379
+              protocol: TCP
+          livenessProbe:
+            tcpSocket:
+              port: redis
+            initialDelaySeconds: 5
+            timeoutSeconds: 5
+          readinessProbe:
+            exec:
+              command:
+                - redis-cli
+                - ping
+            initialDelaySeconds: 5
+            timeoutSeconds: 5
+          resources:
+            limits:
+              cpu: 1000m
+              memory: 128Mi
+            requests:
+              cpu: 100m
+              memory: 32Mi
+          volumeMounts:
+            - mountPath: /var/lib/redis
+              name: data
+            - mountPath: /redis-master
+              name: config
+      volumes:
+        - name: data
+          emptyDir: {}
+        - name: config
+          configMap:
+            name: {{ template "podinfo.fullname" . }}-redis
+            items:
+              - key: redis.conf
+                path: redis.conf
+{{- end }}

charts/podinfo/templates/redis/service.yaml

@@ -0,0 +1,17 @@
+{{- if .Values.redis.enabled -}}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "podinfo.fullname" . }}-redis
+  labels:
+    app: {{ template "podinfo.fullname" . }}-redis
+spec:
+  type: ClusterIP
+  selector:
+    app: {{ template "podinfo.fullname" . }}-redis
+  ports:
+    - name: redis
+      port: 6379
+      protocol: TCP
+      targetPort: redis
+{{- end }}

charts/podinfo/templates/service.yaml

@@ -4,10 +4,11 @@ kind: Service
 metadata:
   name: {{ template "podinfo.fullname" . }}
   labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
+    {{- include "podinfo.labels" . | nindent 4 }}
+{{- with .Values.service.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
 spec:
   type: {{ .Values.service.type }}
   ports:
@@ -18,6 +19,12 @@ spec:
       {{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.nodePort))) }}
       nodePort: {{ .Values.service.nodePort }}
       {{- end }}
+    {{- if .Values.tls.enabled }}
+    - port: {{ .Values.tls.port | default 9899 }}
+      targetPort: https
+      protocol: TCP
+      name: https
+    {{- end }}
     {{- if .Values.service.grpcPort }}
     - port: {{ .Values.service.grpcPort }}
       targetPort: grpc
@@ -25,5 +32,5 @@ spec:
       name: grpc
     {{- end }}
   selector:
-    app: {{ template "podinfo.fullname" . }}
-{{- end }}
+    {{- include "podinfo.selectorLabels" . | nindent 4 }}
+{{- end }}

charts/podinfo/templates/serviceaccount.yaml

@@ -4,8 +4,9 @@ kind: ServiceAccount
 metadata:
   name: {{ template "podinfo.serviceAccountName" . }}
   labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
+    {{- include "podinfo.labels" . | nindent 4 }}
+{{- with .Values.serviceAccount.imagePullSecrets }}
+imagePullSecrets:
+  {{- toYaml . | nindent 2 }}
 {{- end -}}
+{{- end -}}

charts/podinfo/templates/servicemonitor.yaml

@@ -4,16 +4,19 @@ kind: ServiceMonitor
 metadata:
   name: {{ template "podinfo.fullname" . }}
   labels:
-    app: {{ template "podinfo.name" . }}
-    chart: {{ template "podinfo.chart" . }}
-    release: {{ .Release.Name }}
-    heritage: {{ .Release.Service }}
+    {{- 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:
+      - {{ .Release.Namespace }}
   selector:
     matchLabels:
-      app: {{ template "podinfo.fullname" . }}
+      {{- include "podinfo.selectorLabels" . | nindent 6 }}
 {{- end }}

charts/podinfo/templates/tests/cache.yaml

@@ -4,10 +4,7 @@ kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-cache-test-{{ randAlphaNum 5 | lower }}
   labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
+    {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
     "helm.sh/hook": test
     "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded

charts/podinfo/templates/tests/fail.yaml

@@ -4,10 +4,7 @@ kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-fault-test-{{ randAlphaNum 5 | lower }}
   labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
+    {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
     "helm.sh/hook": test-success
     "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded

charts/podinfo/templates/tests/grpc.yaml

@@ -3,10 +3,7 @@ kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-grpc-test-{{ randAlphaNum 5 | lower }}
   labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
+    {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
     "helm.sh/hook": test-success
     "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded

charts/podinfo/templates/tests/jwt.yaml

@@ -3,10 +3,7 @@ kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-jwt-test-{{ randAlphaNum 5 | lower }}
   labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
+    {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
     "helm.sh/hook": test-success
     "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded

charts/podinfo/templates/tests/service.yaml

@@ -3,10 +3,7 @@ kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-service-test-{{ randAlphaNum 5 | lower }}
   labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
+    {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
     "helm.sh/hook": test-success
     "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded

charts/podinfo/templates/tests/timeout.yaml

@@ -4,10 +4,7 @@ kind: Pod
 metadata:
   name: {{ template "podinfo.fullname" . }}-fault-test-{{ randAlphaNum 5 | lower }}
   labels:
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    app: {{ template "podinfo.name" . }}
+    {{- include "podinfo.labels" . | nindent 4 }}
   annotations:
     "helm.sh/hook": test-success
     "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded

charts/podinfo/templates/tests/tls.yaml

@@ -0,0 +1,27 @@
+{{- if .Values.tls.enabled -}}
+apiVersion: v1
+kind: Pod
+metadata:
+  name: {{ template "podinfo.fullname" . }}-tls-test-{{ randAlphaNum 5 | lower }}
+  labels:
+    {{- include "podinfo.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
+    sidecar.istio.io/inject: "false"
+    linkerd.io/inject: disabled
+    appmesh.k8s.aws/sidecarInjectorWebhook: disabled
+spec:
+  containers:
+    - name: curl
+      image: curlimages/curl:7.69.0
+      command:
+        - sh
+        - -c
+        - |
+          curl -sk ${PODINFO_SVC}/api/info | grep version
+      env:
+        - name: PODINFO_SVC
+          value: "https://{{ template "podinfo.fullname" . }}.{{ .Release.Namespace }}:{{ .Values.tls.port }}"
+  restartPolicy: Never
+{{- end }}

charts/podinfo/values-prod.yaml

@@ -0,0 +1,140 @@
+# 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: 6.6.0
+  pullPolicy: IfNotPresent
+
+ui:
+  color: "#34577c"
+  message: ""
+  logo: ""
+
+# failure conditions
+faults:
+  delay: false
+  error: false
+  unhealthy: false
+  unready: false
+  testFail: false
+  testTimeout: false
+
+# Kubernetes Service settings
+service:
+  enabled: true
+  annotations: {}
+  type: ClusterIP
+  metricsPort: 9797
+  httpPort: 9898
+  externalPort: 9898
+  grpcPort: 9999
+  grpcService: podinfo
+  nodePort: 31198
+
+# enable h2c protocol (non-TLS version of HTTP/2)
+h2c:
+  enabled: false
+
+# 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
+  maxReplicas: 5
+  # average total CPU usage per pod (1-100)
+  cpu: 99
+  # average memory usage per pod (100Mi-1Gi)
+  memory:
+  # average http requests per second per pod (k8s-prometheus-adapter)
+  requests:
+
+# Redis address in the format tcp://<host>:<port>
+cache: ""
+# Redis deployment
+redis:
+  enabled: true
+  repository: redis
+  tag: 7.0.7
+
+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:
+  # List of image pull secrets if pulling from private registries
+  imagePullSecrets: []
+
+# set container security context
+securityContext: {}
+
+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
+  additionalLabels: {}
+
+resources:
+  limits:
+    memory: 256Mi
+  requests:
+    cpu: 100m
+    memory: 64Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
+
+podAnnotations: {}

charts/podinfo/values.yaml

@@ -2,15 +2,21 @@
 
 replicaCount: 1
 logLevel: info
+host: #0.0.0.0
 backend: #http://backend-podinfo:9898/echo
 backends: []
-cache: ""
+
+image:
+  repository: ghcr.io/stefanprodan/podinfo
+  tag: 6.6.0
+  pullPolicy: IfNotPresent
 
 ui:
   color: "#34577c"
   message: ""
   logo: ""
 
+# failure conditions
 faults:
   delay: false
   error: false
@@ -19,16 +25,10 @@ faults:
   testFail: false
   testTimeout: false
 
-h2c:
-  enabled: false
-
-image:
-  repository: stefanprodan/podinfo
-  tag: 4.0.4
-  pullPolicy: IfNotPresent
-
+# Kubernetes Service settings
 service:
   enabled: true
+  annotations: {}
   type: ClusterIP
   metricsPort: 9797
   httpPort: 9898
@@ -36,6 +36,39 @@ service:
   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 h2c protocol (non-TLS version of HTTP/2)
+h2c:
+  enabled: false
+
+# 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:
@@ -48,33 +81,52 @@ hpa:
   # average http requests per second per pod (k8s-prometheus-adapter)
   requests:
 
+# Redis address in the format tcp://<host>:<port>
+cache: ""
+# Redis deployment
+redis:
+  enabled: false
+  repository: redis
+  tag: 7.0.7
+
 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:
+  # List of image pull secrets if pulling from private registries
+  imagePullSecrets: []
+
+# set container security context
+securityContext: {}
+
+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:
@@ -89,3 +141,25 @@ 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

cmd/podcli/code.go

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

cmd/podinfo/main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -14,39 +13,47 @@ 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")
 	fs.String("config", "config.yaml", "config file name")
 	fs.String("ui-path", "./ui", "UI local path")
 	fs.String("ui-logo", "", "UI logo")
 	fs.String("ui-color", "#34577c", "UI color")
 	fs.String("ui-message", fmt.Sprintf("greetings from podinfo v%v", version.VERSION), "UI message")
 	fs.Bool("h2c", false, "allow upgrading to H2C")
-	fs.Bool("random-delay", false, "between 0 and 5 seconds random delay")
+	fs.Bool("random-delay", false, "between 0 and 5 seconds random delay by default")
+	fs.String("random-delay-unit", "s", "either s(seconds) or ms(milliseconds")
+	fs.Int("random-delay-min", 0, "min for random delay: 0 by default")
+	fs.Int("random-delay-max", 5, "max for random delay: 5 by default")
 	fs.Bool("random-error", false, "1/3 chances of a random response error")
 	fs.Bool("unhealthy", false, "when set, healthy state is never reached")
 	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")
 
@@ -78,11 +85,11 @@ func main() {
 	viper.AutomaticEnv()
 
 	// load config from file
-	if _, err := os.Stat(filepath.Join(viper.GetString("config-path"), viper.GetString("config"))); err == nil {
+	if _, fileErr := os.Stat(filepath.Join(viper.GetString("config-path"), viper.GetString("config"))); fileErr == nil {
 		viper.SetConfigName(strings.Split(viper.GetString("config"), ".")[0])
 		viper.AddConfigPath(viper.GetString("config-path"))
-		if err := viper.ReadInConfig(); err != nil {
-			fmt.Printf("Error reading config file, %v\n", err)
+		if readErr := viper.ReadInConfig(); readErr != nil {
+			fmt.Printf("Error reading config file, %v\n", readErr)
 		}
 	}
 
@@ -101,6 +108,26 @@ func main() {
 		viper.Set("port", strconv.Itoa(port))
 	}
 
+	// validate secure port
+	if _, err := strconv.Atoi(viper.GetString("secure-port")); err != nil {
+		securePort, _ := fs.GetInt("secure-port")
+		viper.Set("secure-port", strconv.Itoa(securePort))
+	}
+
+	// validate random delay options
+	if viper.GetInt("random-delay-max") < viper.GetInt("random-delay-min") {
+		logger.Panic("`--random-delay-max` should be greater than `--random-delay-min`")
+	}
+
+	switch delayUnit := viper.GetString("random-delay-unit"); delayUnit {
+	case
+		"s",
+		"ms":
+		break
+	default:
+		logger.Panic("`random-delay-unit` accepted values are: s|ms")
+	}
+
 	// load gRPC server config
 	var grpcCfg grpc.Config
 	if err := viper.Unmarshal(&grpcCfg); err != nil {
@@ -108,13 +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))
 	}
@@ -127,9 +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) {
@@ -211,12 +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/README.md

@@ -1,6 +1,7 @@
-# Deploy demo webapp 
+# Deploy demo webapp
 
 Demo webapp manifests:
+
 - [common](webapp/common)
 - [frontend](webapp/frontend)
 - [backend](webapp/backend)
@@ -30,3 +31,15 @@ Deploy the demo in the `production` namespace:
 ```bash
 kustomize build ./overlays/production | kubectl apply -f-
 ```
+
+## Testing Locally Using Kind
+
+> NOTE: You can install [kind from here](https://kind.sigs.k8s.io/docs/user/quick-start/#installation)
+
+The following will create a new cluster called "podinfo" and configure host ports on 80 and 443. You can access the
+endpoints on localhost. The example also deploys cert-manager within the cluster along with a self-signed cluster issuer
+used to generate the certificate to validate the secure port.
+
+```sh
+./kind.sh
+```

deploy/bases/backend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: backend
-        image: stefanprodan/podinfo:4.0.4
+        image: ghcr.io/stefanprodan/podinfo:6.6.0
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

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: stefanprodan/podinfo:4.0.4
+        image: ghcr.io/stefanprodan/podinfo:6.6.0
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/bases/frontend/hpa.yaml

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

deploy/kind.sh

@@ -0,0 +1,48 @@
+#! /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
+
+# add certificate manager
+kubectl apply -f https://github.com/jetstack/cert-manager/releases/download/v1.0.4/cert-manager.yaml
+
+# wait for cert manager
+kubectl rollout status --namespace cert-manager deployment/cert-manager --timeout=2m
+kubectl rollout status --namespace cert-manager deployment/cert-manager-webhook --timeout=2m
+kubectl rollout status --namespace cert-manager deployment/cert-manager-cainjector --timeout=2m
+
+# # apply the secure webapp
+kubectl apply -f ./secure/common
+kubectl apply -f ./secure/backend
+kubectl apply -f ./secure/frontend
+
+# # wait for the podinfo frontend to come up
+kubectl rollout status --namespace secure deployment/frontend --timeout=1m
+
+# curl the endpoints (responds with info due to header regexp on route handler)
+echo
+echo "http enpdoint:"
+echo "curl http://localhost"
+echo
+curl http://localhost
+
+echo
+echo "https (secure) enpdoint:"
+echo "curl --insecure https://localhost"
+echo
+curl --insecure https://localhost

deploy/secure/backend/deployment.yaml

@@ -0,0 +1,74 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: backend
+  namespace: secure
+spec:
+  minReadySeconds: 3
+  revisionHistoryLimit: 5
+  progressDeadlineSeconds: 60
+  strategy:
+    rollingUpdate:
+      maxUnavailable: 0
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app: backend
+  template:
+    metadata:
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "9797"
+      labels:
+        app: backend
+    spec:
+      serviceAccountName: secure
+      containers:
+      - name: backend
+        image: ghcr.io/stefanprodan/podinfo:5.0.3
+        imagePullPolicy: IfNotPresent
+        ports:
+        - name: http
+          containerPort: 9898
+          protocol: TCP
+        - name: http-metrics
+          containerPort: 9797
+          protocol: TCP
+        - name: grpc
+          containerPort: 9999
+          protocol: TCP
+        command:
+        - ./podinfo
+        - --port=9898
+        - --port-metrics=9797
+        - --grpc-port=9999
+        - --grpc-service-name=backend
+        - --level=info
+        env:
+        - name: PODINFO_UI_COLOR
+          value: "#34577c"
+        livenessProbe:
+          exec:
+            command:
+            - podcli
+            - check
+            - http
+            - localhost:9898/healthz
+          initialDelaySeconds: 5
+          timeoutSeconds: 5
+        readinessProbe:
+          exec:
+            command:
+            - podcli
+            - check
+            - http
+            - localhost:9898/readyz
+          initialDelaySeconds: 5
+          timeoutSeconds: 5
+        resources:
+          limits:
+            cpu: 2000m
+            memory: 512Mi
+          requests:
+            cpu: 100m
+            memory: 32Mi

deploy/secure/backend/hpa.yaml

@@ -0,0 +1,19 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: backend
+  namespace: secure
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: backend
+  minReplicas: 1
+  maxReplicas: 2
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 99

deploy/secure/backend/service.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend
+  namespace: secure
+spec:
+  type: ClusterIP
+  selector:
+    app: backend
+  ports:
+    - name: http
+      port: 9898
+      protocol: TCP
+      targetPort: http
+    - port: 9999
+      targetPort: grpc
+      protocol: TCP
+      name: grpc

deploy/secure/common/cluster-issuer.yaml

@@ -0,0 +1,6 @@
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: self-signed
+spec:
+  selfSigned: {}

deploy/secure/common/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: secure

deploy/secure/common/reconciler-rbac.yaml

@@ -0,0 +1,29 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: reconciler
+  namespace: secure
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: reconciler
+  namespace: secure
+rules:
+  - apiGroups: ['*']
+    resources: ['*']
+    verbs: ['*']
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: reconciler
+  namespace: secure
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: reconciler
+subjects:
+  - kind: ServiceAccount
+    name: reconciler
+    namespace: secure

deploy/secure/common/service-account.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: secure
+  namespace: secure

deploy/secure/frontend/certificate.yaml

@@ -0,0 +1,15 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: podinfo-frontend
+  namespace: secure
+spec:
+  dnsNames:
+    - frontend
+    - frontend.secure
+    - frontend.secure.cluster.local
+    - localhost
+  secretName: podinfo-frontend-tls
+  issuerRef:
+    name: self-signed
+    kind: ClusterIssuer

deploy/secure/frontend/deployment.yaml

@@ -0,0 +1,95 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: frontend
+  namespace: secure
+spec:
+  minReadySeconds: 3
+  revisionHistoryLimit: 5
+  progressDeadlineSeconds: 60
+  strategy:
+    rollingUpdate:
+      maxUnavailable: 0
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app: frontend
+  template:
+    metadata:
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "9797"
+      labels:
+        app: frontend
+    spec:
+      serviceAccountName: secure
+      volumes:
+      - name: tls
+        secret:
+          secretName: podinfo-frontend-tls
+      containers:
+      - name: frontend
+        image: deavon/podinfo:secure-port
+        imagePullPolicy: IfNotPresent
+        securityContext:
+          capabilities:
+            drop:
+              - ALL
+            add:
+              - NET_BIND_SERVICE
+          allowPrivilegeEscalation: true
+        ports:
+        - name: http
+          containerPort: 9898
+          protocol: TCP
+          hostPort: 80
+        - name: https
+          containerPort: 9899
+          protocol: TCP
+          hostPort: 443
+        - name: http-metrics
+          containerPort: 9797
+          protocol: TCP
+        - name: grpc
+          containerPort: 9999
+          protocol: TCP
+        volumeMounts:
+        - name: tls
+          mountPath: /data/cert
+          readOnly: true
+        command:
+        - ./podinfo
+        - --port=9898
+        - --secure-port=9899
+        - --port-metrics=9797
+        - --level=info
+        - --cert-path=/data/cert
+        - --backend-url=http://backend:9898/echo
+        env:
+        - name: PODINFO_UI_COLOR
+          value: "#34577c"
+        livenessProbe:
+          exec:
+            command:
+            - podcli
+            - check
+            - http
+            - localhost:9898/healthz
+          initialDelaySeconds: 5
+          timeoutSeconds: 5
+        readinessProbe:
+          exec:
+            command:
+            - podcli
+            - check
+            - http
+            - localhost:9898/readyz
+          initialDelaySeconds: 5
+          timeoutSeconds: 5
+        resources:
+          limits:
+            cpu: 1000m
+            memory: 128Mi
+          requests:
+            cpu: 100m
+            memory: 32Mi

deploy/secure/frontend/hpa.yaml

@@ -0,0 +1,19 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: frontend
+  namespace: secure
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: frontend
+  minReplicas: 1
+  maxReplicas: 4
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 99

deploy/secure/frontend/service.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+  namespace: secure
+spec:
+  type: ClusterIP
+  selector:
+    app: frontend
+  ports:
+    - name: http
+      port: 80
+      protocol: TCP
+      targetPort: http
+    - name: https
+      port: 443
+      protocol: TCP
+      targetPort: https

deploy/webapp/backend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: backend
-        image: stefanprodan/podinfo:4.0.4
+        image: ghcr.io/stefanprodan/podinfo:6.6.0
         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: stefanprodan/podinfo:4.0.4
+        image: ghcr.io/stefanprodan/podinfo:6.6.0
         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

@@ -1,27 +1,89 @@
 module github.com/stefanprodan/podinfo
 
-go 1.14
+go 1.21
 
 require (
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751
-	github.com/chzyer/logex v1.1.10 // indirect
-	github.com/chzyer/readline v0.0.0-20160726135117-62c6fe619375
-	github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 // indirect
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible
-	github.com/fatih/color v1.7.0
-	github.com/fsnotify/fsnotify v1.4.7
-	github.com/go-chi/chi v4.1.1+incompatible // indirect
-	github.com/gomodule/redigo v1.8.1
-	github.com/gorilla/mux v1.7.4
-	github.com/gorilla/websocket v1.4.2
-	github.com/hashicorp/go-getter v1.4.1
-	github.com/prometheus/client_golang v1.5.1
-	github.com/spf13/cobra v1.0.0
+	github.com/chzyer/readline v1.5.1
+	github.com/fatih/color v1.16.0
+	github.com/fsnotify/fsnotify v1.7.0
+	github.com/golang-jwt/jwt/v4 v4.5.0
+	github.com/gomodule/redigo v1.8.9
+	github.com/gorilla/mux v1.8.1
+	github.com/gorilla/websocket v1.5.1
+	github.com/prometheus/client_golang v1.17.0
+	github.com/spf13/cobra v1.8.0
 	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.6.2
-	github.com/swaggo/http-swagger v0.0.0-20190614090009-c2865af9083e
-	github.com/swaggo/swag v1.6.5
-	go.uber.org/zap v1.15.0
-	golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297
-	google.golang.org/grpc v1.23.0
+	github.com/spf13/viper v1.18.1
+	github.com/swaggo/http-swagger v1.3.4
+	github.com/swaggo/swag v1.16.2
+	go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux v0.46.1
+	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.46.1
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1
+	go.opentelemetry.io/contrib/propagators/aws v1.21.1
+	go.opentelemetry.io/contrib/propagators/b3 v1.21.1
+	go.opentelemetry.io/contrib/propagators/jaeger v1.21.1
+	go.opentelemetry.io/contrib/propagators/ot v1.21.1
+	go.opentelemetry.io/otel v1.21.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0
+	go.opentelemetry.io/otel/sdk v1.21.0
+	go.opentelemetry.io/otel/trace v1.21.0
+	go.uber.org/zap v1.26.0
+	golang.org/x/net v0.19.0
+	google.golang.org/grpc v1.60.0
+)
+
+// Fix CVE-2022-32149
+replace golang.org/x/text => golang.org/x/text v0.14.0
+
+// Fix CVE-2022-28948
+replace gopkg.in/yaml.v3 => gopkg.in/yaml.v3 v3.0.1
+
+require (
+	github.com/KyleBanks/depth v1.2.1 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.3.0 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-openapi/jsonpointer v0.19.5 // indirect
+	github.com/go-openapi/jsonreference v0.20.0 // indirect
+	github.com/go-openapi/spec v0.20.6 // indirect
+	github.com/go-openapi/swag v0.19.15 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mailru/easyjson v0.7.6 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
+	github.com/prometheus/client_model v0.4.1-0.20230718164431-9a2bf3000d16 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.11.1 // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/swaggo/files v0.0.0-20220610200504-28940afbdbfe // indirect
+	go.opentelemetry.io/otel/metric v1.21.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/tools v0.13.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20231106174013-bbf56f31fb17 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,470 +1,243 @@
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+google.golang.org/grpc v1.60.0 h1:6FQAR0kM31P6MRdeluor2w2gPaS4SVNrD/DNTxrQ15k=
+google.golang.org/grpc v1.60.0/go.mod h1:OlCHIeLYqSSsLi6i49B5QGdzaMZK9+M7LXN2FKz4eGM=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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+gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
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 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
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+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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kustomize/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: podinfod
-        image: stefanprodan/podinfo:4.0.4
+        image: ghcr.io/stefanprodan/podinfo:6.6.0
         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/v2beta1
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: podinfo
@@ -13,6 +13,8 @@ spec:
   - type: Resource
     resource:
       name: cpu
-      # scale up if usage is above
-      # 99% of the requested CPU (100m)
-      targetAverageUtilization: 99
+      target:
+        type: Utilization
+        # scale up if usage is above
+        # 99% of the requested CPU (100m)
+        averageUtilization: 99

kustomize/kustomization.yaml

@@ -1,7 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
 resources:
   - hpa.yaml
   - deployment.yaml
   - service.yaml
 
-commonLabels:
-  app: podinfo

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/delay.go

@@ -1,32 +0,0 @@
-package api
-
-import (
-	"net/http"
-
-	"strconv"
-	"time"
-
-	"github.com/gorilla/mux"
-)
-
-// Delay godoc
-// @Summary Delay
-// @Description waits for the specified period
-// @Tags HTTP API
-// @Accept json
-// @Produce json
-// @Router /delay/{seconds} [get]
-// @Success 200 {object} api.MapResponse
-func (s *Server) delayHandler(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-
-	delay, err := strconv.Atoi(vars["wait"])
-	if err != nil {
-		s.ErrorResponse(w, r, err.Error(), http.StatusBadRequest)
-		return
-	}
-
-	time.Sleep(time.Duration(delay) * time.Second)
-
-	s.JSONResponse(w, r, map[string]int{"delay": delay})
-}

pkg/api/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/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 +1,70 @@
+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) {
+
+	// Server initialization
+	// bufconn => uses in-memory connection instead of system network I/O
+	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)
+		}
+	}()
+
+	// - 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 := echo.NewEchoServiceClient(conn)
+	res , err := client.Echo(context.Background(), &echo.Message{Body:"test123-test"})
+
+	// Check the status code is what we expect.
+	if _, ok := status.FromError(err); !ok {
+		t.Errorf("Echo returned type %T, want %T", err, status.Error)
+	}
+
+	// Check the response body is what we expect.
+	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/mock_grpc.go

@@ -0,0 +1,31 @@
+package grpc
+
+import (
+	"go.uber.org/zap"
+)
+
+
+func NewMockGrpcServer() *Server {
+	config := &Config{
+		Port:                  9999,
+		// ServerShutdownTimeout: 5 * time.Second,
+		// HttpServerTimeout:     30 * time.Second,
+		BackendURL:            []string{},
+		ConfigPath:            "/config",
+		DataPath:              "/data",
+		// HttpClientTimeout:     30 * time.Second,
+		UIColor:               "blue",
+		UIPath:                ".ui",
+		UIMessage:             "Greetings",
+		Hostname:              "localhost",
+	}
+
+	logger, _ := zap.NewDevelopment()
+
+	return &Server{
+		//router: mux.NewRouter(),
+		logger: logger,
+		config: config,
+		//tracer: trace.NewNoopTracerProvider().Tracer("mock"),
+	}
+}

pkg/api/grpc/panic.go

@@ -0,0 +1,24 @@
+package grpc
+
+import (
+	"context"
+	// "log"
+	"os"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/panic"
+	"go.uber.org/zap"
+)
+
+type PanicServer struct {
+	pb.UnimplementedPanicServiceServer
+	config *Config
+	logger *zap.Logger
+
+}
+
+func (s *PanicServer) Panic(ctx context.Context, req *pb.PanicRequest) (*pb.PanicResponse, error) {
+	s.logger.Info("Panic command received")
+	os.Exit(225)
+	return &pb.PanicResponse{}, nil
+}
+

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

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

pkg/api/grpc/panic/panic.proto

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

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

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

pkg/api/grpc/server.go

@@ -0,0 +1,93 @@
+package grpc
+
+import (
+	"fmt"
+	"net"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/echo"
+
+	"go.uber.org/zap"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/health"
+	"google.golang.org/grpc/health/grpc_health_v1"
+	"google.golang.org/grpc/reflection"
+
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/panic"
+	"github.com/stefanprodan/podinfo/pkg/api/grpc/version"
+)
+
+
+type Server struct {
+	logger *zap.Logger
+	config *Config
+}
+
+type Config struct {
+	Port        int    `mapstructure:"grpc-port"`
+	ServiceName string `mapstructure:"grpc-service-name"`
+
+
+	BackendURL            []string      `mapstructure:"backend-url"`
+	UILogo                string        `mapstructure:"ui-logo"`
+	UIMessage             string        `mapstructure:"ui-message"`
+	UIColor               string        `mapstructure:"ui-color"`
+	UIPath                string        `mapstructure:"ui-path"`
+	DataPath              string        `mapstructure:"data-path"`
+	ConfigPath            string        `mapstructure:"config-path"`
+	CertPath              string        `mapstructure:"cert-path"`
+	Host                  string        `mapstructure:"host"`
+	//Port                  string        `mapstructure:"port"`
+	SecurePort            string        `mapstructure:"secure-port"`
+	PortMetrics           int           `mapstructure:"port-metrics"`
+	Hostname              string        `mapstructure:"hostname"`
+	H2C                   bool          `mapstructure:"h2c"`
+	RandomDelay           bool          `mapstructure:"random-delay"`
+	RandomDelayUnit       string        `mapstructure:"random-delay-unit"`
+	RandomDelayMin        int           `mapstructure:"random-delay-min"`
+	RandomDelayMax        int           `mapstructure:"random-delay-max"`
+	RandomError           bool          `mapstructure:"random-error"`
+	Unhealthy             bool          `mapstructure:"unhealthy"`
+	Unready               bool          `mapstructure:"unready"`
+	JWTSecret             string        `mapstructure:"jwt-secret"`
+	CacheServer           string        `mapstructure:"cache-server"`
+
+}
+
+func NewServer(config *Config, logger *zap.Logger) (*Server, error) {
+	srv := &Server{
+		logger: logger,
+		config: config,
+	}
+
+	return srv, nil
+}
+
+
+func (s *Server) ListenAndServe() *grpc.Server {
+	listener, err := net.Listen("tcp", fmt.Sprintf(":%v", s.config.Port))
+	if err != nil {
+		s.logger.Fatal("failed to listen", zap.Int("port", s.config.Port))
+	}
+
+	srv := grpc.NewServer()
+	server := health.NewServer()
+
+	
+	// Register grpc apis for refection
+	echo.RegisterEchoServiceServer(srv, &echoServer{config: s.config, logger: s.logger})
+
+	version.RegisterVersionServiceServer(srv, &VersionServer{config: s.config, logger: s.logger})
+	panic.RegisterPanicServiceServer(srv, &PanicServer{config: s.config, logger: s.logger})
+
+	reflection.Register(srv)
+	grpc_health_v1.RegisterHealthServer(srv, server)
+	server.SetServingStatus(s.config.ServiceName, grpc_health_v1.HealthCheckResponse_SERVING)
+
+	go func() {
+		if err := srv.Serve(listener); err != nil {
+			s.logger.Fatal("failed to serve", zap.Error(err))
+		}
+	}()
+
+	return srv
+}

pkg/api/grpc/version.go

@@ -0,0 +1,21 @@
+package grpc
+
+import (
+	"context"
+
+	pb "github.com/stefanprodan/podinfo/pkg/api/grpc/version"
+	"github.com/stefanprodan/podinfo/pkg/version"
+	"go.uber.org/zap"
+)
+
+type VersionServer struct {
+	pb.UnimplementedVersionServiceServer
+	config *Config
+	logger *zap.Logger
+	
+}
+
+func (s *VersionServer) Version(ctx context.Context, req *pb.VersionRequest) (*pb.VersionResponse, error) {
+	return &pb.VersionResponse{Version: version.VERSION, Commit: version.REVISION}, nil
+}
+

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

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