feat: Add an optional Redis component to the Higress helm package (#1973)

helm/core/charts/redis/templates/_helpers.tpl

@@ -0,0 +1,34 @@
+{{/*
+Expand the name of the chart.
+*/}}
+
+{{- define "redis.name" -}}
+{{- .Values.redis.name | default "redis-stack-server" -}}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "redis.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "redis.labels" -}}
+helm.sh/chart: {{ include "redis.chart" . }}
+{{ include "redis.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "redis.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "redis.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

helm/core/charts/redis/templates/configmap.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "redis.name" . }}
+  namespace: {{ .Release.Namespace }}
+data:
+  redis-stack.conf: |
+    {{- if .Values.redis.password }}
+    requirepass {{ .Values.redis.password }}
+    {{- end }}

helm/core/charts/redis/templates/pvc.yaml

@@ -0,0 +1,16 @@
+{{- if .Values.redis.persistence.enabled }}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ include "redis.name" . }}
+  namespace: {{ .Release.Namespace }}
+spec:
+  accessModes:
+  {{- range .Values.redis.persistence.accessModes }}
+    - {{ . | quote }}
+  {{- end }}
+  storageClassName: {{ .Values.redis.persistence.storageClass }}
+  resources:
+    requests:
+      storage: {{ .Values.redis.persistence.size | quote }}
+{{- end }}

helm/core/charts/redis/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "redis.name" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "redis.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.redis.service.type }}
+  ports:
+    - port: {{ .Values.redis.service.port }}
+      targetPort: 6379
+      protocol: TCP
+  selector:
+    {{- include "redis.selectorLabels" . | nindent 4 }}

helm/core/charts/redis/templates/statefulset.yaml

@@ -0,0 +1,74 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "redis.name" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "redis.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.redis.replicas }}
+  serviceName: {{ include "redis.name" . }}
+  selector:
+    matchLabels:
+      {{- include "redis.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "redis.selectorLabels" . | nindent 8 }}
+    spec:
+      terminationGracePeriodSeconds: 10
+      {{- with .Values.global.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.global.hub }}/{{ .Values.redis.image | default "redis-stack-server" }}:{{ .Values.redis.tag | default .Chart.AppVersion }}"
+          {{- if .Values.global.imagePullPolicy }}
+          imagePullPolicy: {{ .Values.global.imagePullPolicy }}
+          {{- end }}
+          ports:
+            - name: http
+              containerPort: 6379
+              protocol: TCP
+          livenessProbe:
+            tcpSocket:
+              port: 6379
+            initialDelaySeconds: 15
+            periodSeconds: 10
+          readinessProbe:
+            tcpSocket:
+              port: 6379
+            initialDelaySeconds: 15
+            periodSeconds: 10
+          resources:
+            {{- toYaml .Values.redis.resources | nindent 12 }}
+          volumeMounts:
+            - name: config
+              mountPath: /redis-stack.conf
+              subPath: redis-stack.conf
+            {{- if .Values.redis.persistence.enabled }}
+            - name: db
+              mountPath: /data
+            {{- end }}
+      {{- with .Values.redis.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.redis.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.redis.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      volumes:
+        - name: config
+          configMap:
+            name: {{ include "redis.name" . }}
+        {{- if .Values.redis.persistence.enabled }}
+        - name: db
+          persistentVolumeClaim:
+            claimName: {{ include "redis.name" . }}
+        {{- end }}