Merge pull request #87 from stefanprodan/release-4.0.5

Release v4.0.5

Dockerfile

@@ -18,7 +18,7 @@ RUN CGO_ENABLED=0 go build -ldflags "-s -w \
     -X github.com/stefanprodan/podinfo/pkg/version.REVISION=${REVISION}" \
     -a -o bin/podcli cmd/podcli/*
 
-FROM alpine:3.11
+FROM alpine:3.12
 
 ARG BUILD_DATE
 ARG VERSION
@@ -38,7 +38,7 @@ LABEL maintainer="stefanprodan" \
 RUN addgroup -S app \
     && adduser -S -g app app \
     && apk --no-cache add \
-    curl openssl netcat-openbsd
+    ca-certificates curl netcat-openbsd
 
 WORKDIR /home/app
 

charts/podinfo/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
-version: 4.0.2
-appVersion: 4.0.2
+version: 4.0.5
+appVersion: 4.0.5
 name: podinfo
 engine: gotpl
 description: Podinfo Helm chart for Kubernetes

charts/podinfo/README.md

@@ -37,6 +37,7 @@ Parameter | Default | Description
 `backend` | `None` | Echo backend URL
 `backends` | `[]` | Array of echo backend URLs
 `cache` | `None` | Redis address in the format `<host>:<port>`
+`redis.enabled` | `false` | Create Redis deployment for caching purposes
 `ui.color` | `#34577c` |  UI color
 `ui.message` | `None` |  UI greetings message
 `ui.logo` | `None` |  UI logo
@@ -80,6 +81,7 @@ Parameter | Default | Description
 `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,
 
@@ -88,6 +90,13 @@ $ helm install my-release podinfo/podinfo \
   --set=serviceMonitor.enabled=true,serviceMonitor.interval=5s
 ```
 
+To add custom annotations you need to escape the annotation key string:
+
+```console
+$ helm upgrade -i my-release podinfo/podinfo \
+--set podAnnotations."appmesh\.k8s\.aws\/preview"=enabled
+```
+
 Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
 
 ```console

charts/podinfo/templates/deployment.yaml

@@ -25,6 +25,9 @@ spec:
       annotations:
         prometheus.io/scrape: "true"
         prometheus.io/port: "{{ .Values.service.httpPort }}"
+        {{- range $key, $value := .Values.podAnnotations }}
+        {{ $key }}: {{ $value | quote }}
+        {{- end }}
     spec:
       terminationGracePeriodSeconds: 30
       {{- if .Values.serviceAccount.enabled }}
@@ -51,6 +54,8 @@ spec:
             {{- end }}
             {{- if .Values.cache }}
             - --cache-server={{ .Values.cache }}
+            {{- else if .Values.redis.enabled }}
+            - --cache-server={{ template "podinfo.fullname" . }}:6379
             {{- end }}
             - --level={{ .Values.logLevel }}
             - --random-delay={{ .Values.faults.delay }}

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/values.yaml

@@ -4,7 +4,6 @@ replicaCount: 1
 logLevel: info
 backend: #http://backend-podinfo:9898/echo
 backends: []
-cache: ""
 
 ui:
   color: "#34577c"
@@ -24,7 +23,7 @@ h2c:
 
 image:
   repository: stefanprodan/podinfo
-  tag: 4.0.2
+  tag: 4.0.5
   pullPolicy: IfNotPresent
 
 service:
@@ -48,6 +47,14 @@ hpa:
   # 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: 6.0.1
+
 serviceAccount:
   # Specifies whether a service account should be created
   enabled: false
@@ -88,3 +95,4 @@ tolerations: []
 
 affinity: {}
 
+podAnnotations: {}

deploy/bases/backend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: backend
-        image: stefanprodan/podinfo:4.0.2
+        image: stefanprodan/podinfo:4.0.5
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/bases/frontend/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: frontend
-        image: stefanprodan/podinfo:4.0.2
+        image: stefanprodan/podinfo:4.0.5
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/webapp/backend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: backend
-        image: stefanprodan/podinfo:4.0.2
+        image: stefanprodan/podinfo:4.0.5
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

deploy/webapp/frontend/deployment.yaml

@@ -25,7 +25,7 @@ spec:
       serviceAccountName: webapp
       containers:
       - name: frontend
-        image: stefanprodan/podinfo:4.0.2
+        image: stefanprodan/podinfo:4.0.5
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

kustomize/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
       - name: podinfod
-        image: stefanprodan/podinfo:4.0.2
+        image: stefanprodan/podinfo:4.0.5
         imagePullPolicy: IfNotPresent
         ports:
         - name: http

pkg/grpc/server.go

@@ -8,6 +8,7 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/health"
 	"google.golang.org/grpc/health/grpc_health_v1"
+	"google.golang.org/grpc/reflection"
 )
 
 type Server struct {
@@ -37,6 +38,7 @@ func (s *Server) ListenAndServe() {
 
 	srv := grpc.NewServer()
 	server := health.NewServer()
+	reflection.Register(srv)
 	grpc_health_v1.RegisterHealthServer(srv, server)
 	server.SetServingStatus(s.config.ServiceName, grpc_health_v1.HealthCheckResponse_SERVING)
 

pkg/version/version.go

@@ -1,4 +1,4 @@
 package version
 
-var VERSION = "4.0.2"
+var VERSION = "4.0.5"
 var REVISION = "unknown"