Merge pull request #111 from stefanprodan/release-v5.1.1

Release v5.1.1

.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/workflows/e2e.yml

@@ -18,11 +18,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Setup Kubernetes
-        uses: engineerd/setup-kind@v0.4.0
+        uses: engineerd/setup-kind@v0.5.0
       - name: Build container image
         run: |
-          GIT_COMMIT=$(git rev-list -1 HEAD) && \
-          docker build -t test/podinfo:latest --build-arg "REVISION=${GIT_COMMIT}" .
+          ./hack/build.sh
           kind load docker-image test/podinfo:latest
       - name: Setup Helm
         uses: ./.github/actions/helm
@@ -30,20 +29,11 @@ jobs:
           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
+        run: ./hack/tiller.sh
       - name: Deploy
-        run: |
-          helm upgrade -i podinfo ./charts/podinfo \
-          --set image.repository=test/podinfo \
-          --set image.tag=latest \
-          --namespace=default
+        run: ./hack/deploy.sh
       - name: Run integration tests
-        run: |
-          kubectl rollout status deployment/podinfo --timeout=1m
-          helm test podinfo
+        run: ./hack/test.sh
       - name: Debug failure
         if: failure()
         run: |

charts/podinfo/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
-version: 5.0.3
-appVersion: 5.0.3
+version: 5.1.1
+appVersion: 5.1.1
 name: podinfo
 engine: gotpl
 description: Podinfo Helm chart for Kubernetes

charts/podinfo/templates/_helpers.tpl

@@ -59,3 +59,11 @@ Create the name of the service account to use
 {{- 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

@@ -34,9 +34,24 @@ spec:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
+          {{- 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.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 }}
@@ -87,6 +102,17 @@ 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 }}
@@ -118,6 +144,11 @@ spec:
           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 }}
@@ -135,3 +166,8 @@ spec:
       volumes:
       - name: data
         emptyDir: {}
+      {{- if .Values.tls.enabled }}
+      - name: tls
+        secret:
+          secretName: {{ template "podinfo.tlsSecretName" . }}
+      {{- end }}

charts/podinfo/templates/service.yaml

@@ -15,6 +15,12 @@ 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

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

@@ -23,7 +23,7 @@ h2c:
 
 image:
   repository: ghcr.io/stefanprodan/podinfo
-  tag: 5.0.3
+  tag: 5.1.1
   pullPolicy: IfNotPresent
 
 service:

charts/podinfo/values-secure.yaml

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

charts/podinfo/values.yaml

@@ -23,7 +23,7 @@ h2c:
 
 image:
   repository: ghcr.io/stefanprodan/podinfo
-  tag: 5.0.3
+  tag: 5.1.1
   pullPolicy: IfNotPresent
 
 service:
@@ -35,6 +35,35 @@ 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 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
+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:

cmd/podinfo/main.go

@@ -24,6 +24,7 @@ func main() {
 	// flags definition
 	fs := pflag.NewFlagSet("default", pflag.ContinueOnError)
 	fs.Int("port", 9898, "HTTP port")
+	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")
@@ -34,6 +35,7 @@ func main() {
 	fs.Duration("http-server-shutdown-timeout", 5*time.Second, "server graceful shutdown timeout duration")
 	fs.String("data-path", "/data", "data local path")
 	fs.String("config-path", "", "config dir path")
+	fs.String("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")
@@ -81,12 +83,14 @@ 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)
 		}
+	}else{
+		fmt.Printf("Error to open config file, %v\n",fileErr)
 	}
 
 	// configure logging
@@ -104,6 +108,12 @@ 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`")

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: ghcr.io/stefanprodan/podinfo:5.0.3
+        image: ghcr.io/stefanprodan/podinfo:5.1.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/bases/frontend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: frontend
-        image: ghcr.io/stefanprodan/podinfo:5.0.3
+        image: ghcr.io/stefanprodan/podinfo:5.1.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/kind.sh

@@ -0,0 +1,33 @@
+#! /usr/bin/env sh
+
+# 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/kind.yaml

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

deploy/secure/backend/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/v2beta2
+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/v2beta2
+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: ghcr.io/stefanprodan/podinfo:5.0.3
+        image: ghcr.io/stefanprodan/podinfo:5.1.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/webapp/frontend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: frontend
-        image: ghcr.io/stefanprodan/podinfo:5.0.3
+        image: ghcr.io/stefanprodan/podinfo:5.1.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

hack/build.sh

@@ -0,0 +1,7 @@
+#! /usr/bin/env sh
+
+set -e
+
+# build the docker file
+GIT_COMMIT=$(git rev-list -1 HEAD) && \
+DOCKER_BUILDKIT=1 docker build --tag test/podinfo --build-arg "REVISION=${GIT_COMMIT}" .

hack/deploy.sh

@@ -0,0 +1,32 @@
+#! /usr/bin/env sh
+
+# add jetstack repository
+helm repo add jetstack https://charts.jetstack.io || true
+
+# install cert-manager
+helm upgrade --install cert-manager jetstack/cert-manager \
+    --set installCRDs=true \
+    --namespace default
+
+# wait for cert manager
+kubectl rollout status deployment/cert-manager --timeout=2m
+kubectl rollout status deployment/cert-manager-webhook --timeout=2m
+kubectl rollout status deployment/cert-manager-cainjector --timeout=2m
+
+# install self-signed certificate
+cat << 'EOF' | kubectl apply -f -
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: self-signed
+spec:
+  selfSigned: {}
+EOF
+
+# install podinfo with tls enabled
+helm upgrade --install podinfo ./charts/podinfo \
+    --set image.repository=test/podinfo \
+    --set image.tag=latest \
+    --set tls.enabled=true \
+    --set certificate.create=true \
+    --namespace=default

hack/e2e.sh

@@ -0,0 +1,20 @@
+#! /usr/bin/env sh
+
+set -e
+
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd -P)
+
+# run the build
+$SCRIPT_DIR/build.sh
+
+# create the kind cluster
+kind create cluster || true
+
+# load the docker image
+kind load docker-image test/podinfo:latest
+
+# run the deploy
+$SCRIPT_DIR/deploy.sh
+
+# run the tests
+$SCRIPT_DIR/test.sh

hack/test.sh

@@ -0,0 +1,9 @@
+#1 /usr/bin/env sh
+
+set -e
+
+# wait for podinfo
+kubectl rollout status deployment/podinfo --timeout=3m
+
+# test podinfo
+helm test podinfo

hack/tiller.sh

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

kustomize/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: podinfod
-        image: ghcr.io/stefanprodan/podinfo:5.0.3
+        image: ghcr.io/stefanprodan/podinfo:5.1.1
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

pkg/api/server.go

@@ -6,6 +6,7 @@ import (
 	"net/http"
 	_ "net/http/pprof"
 	"os"
+	"path"
 	"strings"
 	"sync/atomic"
 	"time"
@@ -54,7 +55,9 @@ type Config struct {
 	UIPath                    string        `mapstructure:"ui-path"`
 	DataPath                  string        `mapstructure:"data-path"`
 	ConfigPath                string        `mapstructure:"config-path"`
+	CertPath                  string        `mapstructure:"cert-path"`
 	Port                      string        `mapstructure:"port"`
+	SecurePort                string        `mapstructure:"secure-port"`
 	PortMetrics               int           `mapstructure:"port-metrics"`
 	Hostname                  string        `mapstructure:"hostname"`
 	H2C                       bool          `mapstructure:"h2c"`
@@ -70,10 +73,11 @@ type Config struct {
 }
 
 type Server struct {
-	router *mux.Router
-	logger *zap.Logger
-	config *Config
-	pool   *redis.Pool
+	router  *mux.Router
+	logger  *zap.Logger
+	config  *Config
+	pool    *redis.Pool
+	handler http.Handler
 }
 
 func NewServer(config *Config, logger *zap.Logger) (*Server, error) {
@@ -151,19 +155,10 @@ func (s *Server) ListenAndServe(stopCh <-chan struct{}) {
 	s.registerHandlers()
 	s.registerMiddlewares()
 
-	var handler http.Handler
 	if s.config.H2C {
-		handler = h2c.NewHandler(s.router, &http2.Server{})
+		s.handler = h2c.NewHandler(s.router, &http2.Server{})
 	} else {
-		handler = s.router
-	}
-
-	srv := &http.Server{
-		Addr:         ":" + s.config.Port,
-		WriteTimeout: s.config.HttpServerTimeout,
-		ReadTimeout:  s.config.HttpServerTimeout,
-		IdleTimeout:  2 * s.config.HttpServerTimeout,
-		Handler:      handler,
+		s.handler = s.router
 	}
 
 	//s.printRoutes()
@@ -183,12 +178,11 @@ func (s *Server) ListenAndServe(stopCh <-chan struct{}) {
 	ticker := time.NewTicker(30 * time.Second)
 	s.startCachePool(ticker, stopCh)
 
-	// run server in background
-	go func() {
-		if err := srv.ListenAndServe(); err != http.ErrServerClosed {
-			s.logger.Fatal("HTTP server crashed", zap.Error(err))
-		}
-	}()
+	// create the http server
+	srv := s.startServer()
+
+	// create the secure server
+	secureSrv := s.startSecureServer()
 
 	// signal Kubernetes the server is ready to receive traffic
 	if !s.config.Unhealthy {
@@ -212,7 +206,7 @@ func (s *Server) ListenAndServe(stopCh <-chan struct{}) {
 		_ = s.pool.Close()
 	}
 
-	s.logger.Info("Shutting down HTTP server", zap.Duration("timeout", s.config.HttpServerShutdownTimeout))
+	s.logger.Info("Shutting down HTTP/HTTPS server", zap.Duration("timeout", s.config.HttpServerShutdownTimeout))
 
 	// wait for Kubernetes readiness probe to remove this instance from the load balancer
 	// the readiness check interval must be lower than the timeout
@@ -220,12 +214,78 @@ func (s *Server) ListenAndServe(stopCh <-chan struct{}) {
 		time.Sleep(3 * time.Second)
 	}
 
-	// attempt graceful shutdown
-	if err := srv.Shutdown(ctx); err != nil {
-		s.logger.Warn("HTTP server graceful shutdown failed", zap.Error(err))
-	} else {
-		s.logger.Info("HTTP server stopped")
+	// determine if the http server was started
+	if srv != nil {
+		if err := srv.Shutdown(ctx); err != nil {
+			s.logger.Warn("HTTP server graceful shutdown failed", zap.Error(err))
+		}
 	}
+
+	// determine if the secure server was started
+	if secureSrv != nil {
+		if err := secureSrv.Shutdown(ctx); err != nil {
+			s.logger.Warn("HTTPS server graceful shutdown failed", zap.Error(err))
+		}
+	}
+}
+
+func (s *Server) startServer() *http.Server {
+
+	// determine if the port is specified
+	if s.config.Port == "0" {
+
+		// move on immediately
+		return nil
+	}
+
+	srv := &http.Server{
+		Addr:         ":" + s.config.Port,
+		WriteTimeout: s.config.HttpServerTimeout,
+		ReadTimeout:  s.config.HttpServerTimeout,
+		IdleTimeout:  2 * s.config.HttpServerTimeout,
+		Handler:      s.handler,
+	}
+
+	// start the server in the background
+	go func() {
+		if err := srv.ListenAndServe(); err != http.ErrServerClosed {
+			s.logger.Fatal("HTTP server crashed", zap.Error(err))
+		}
+	}()
+
+	// return the server and routine
+	return srv
+}
+
+func (s *Server) startSecureServer() *http.Server {
+
+	// determine if the port is specified
+	if s.config.SecurePort == "0" {
+
+		// move on immediately
+		return nil
+	}
+
+	srv := &http.Server{
+		Addr:         ":" + s.config.SecurePort,
+		WriteTimeout: s.config.HttpServerTimeout,
+		ReadTimeout:  s.config.HttpServerTimeout,
+		IdleTimeout:  2 * s.config.HttpServerTimeout,
+		Handler:      s.handler,
+	}
+
+	cert := path.Join(s.config.CertPath, "tls.crt")
+	key := path.Join(s.config.CertPath, "tls.key")
+
+	// start the server in the background
+	go func() {
+		if err := srv.ListenAndServeTLS(cert, key); err != http.ErrServerClosed {
+			s.logger.Fatal("HTTPS server crashed", zap.Error(err))
+		}
+	}()
+
+	// return the server
+	return srv
 }
 
 func (s *Server) startMetricsServer() {

pkg/version/version.go

@@ -1,4 +1,4 @@
 package version
 
-var VERSION = "5.0.3"
+var VERSION = "5.1.1"
 var REVISION = "unknown"