Add helm install based on kubeblocks

tools/kubeblocks_helm/README.md

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+
+# Install pika cluster by kubeblocks
+Fellow the kubeblock docs [Install kbcli](https://kubeblocks.io/docs/preview/user_docs/installation/install-kbcli)
+
+## install kubeblocks
+Fellow the kubeblock docs [kubeblocks](https://kubeblocks.io/docs/preview/user_docs/installation/install-kubeblocks)
+
+## install pika cluster
+
+### install pika CD and pika cluster 
+First, use helm install pika cluster definition and install pika cluster.
+
+```bash
+cd ./tools/kubeblocks-helm/
+helm install pika ./pika
+helm install pika-cluster ./pika-cluster
+```
+
+Wait for pika cluster until the status to be `Running`.
+```bash
+kubectl get cluster --watch
+````
+
+### Add Pika instance to codis
+Then connect codis front end.
+```bash
+ kubectl port-forward svc/pika-cluster-codis-fe 8080
+```
+Open browser and visit `http://localhost:8080`
+
+Then add pika instance to codis
+1. Input group id `1` and click `Add Group` button
+2. Input the following pika instance url and group id, then click `Add Server` button
+- pika-cluster-pika-0.pika-cluster-pika-headless:9221
+- pika-cluster-pika-1.pika-cluster-pika-headless:9221
+
+3. Click `Rebalance all slots` button
+
+
+### connect to pika cluster
+```bash
+kubectl port-forward svc/pika-cluster-codis-proxy 19000
+# start new terminal
+redis-cli -p 19000 info
+```
+
+## Scale pika cluster
+
+Use kb cli horizontal scale pika instance, you will get 2 new pika instances.
+```bash
+kbcli cluster hscale pika-cluster --replicas 4 --components pika
+```
+
+Add new pika instances to codis
+1. Input group id `2` and click `Add Group` button
+2. Input the following pika instance url and group id, then click `Add Server` button
+- pika-cluster-pika-2.pika-cluster-pika-headless:9221
+- pika-cluster-pika-3.pika-cluster-pika-headless:9221
+3. Click `Rebalance all slots` button
+

tools/kubeblocks_helm/pika-cluster/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

tools/kubeblocks_helm/pika-cluster/Chart.yaml

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+apiVersion: v2
+name: pika-cluster
+description: A Pika Codis Cluster Helm chart for KubeBlocks.
+
+type: application
+
+version: 0.6.0-alpha.21
+
+appVersion: "3.5.0-alpha"
+
+home: https://github.com/OpenAtomFoundation/pika
+keywords:
+  - pika
+  - redis
+  - database
+  - nosql
+  - replication
+  - codis
+
+maintainers:
+  - name: pika
+    url: https://github.com/OpenAtomFoundation/pika/tools/helm

tools/kubeblocks_helm/pika-cluster/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+

tools/kubeblocks_helm/pika-cluster/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "pika-cluster.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "pika-cluster.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 }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "pika-cluster.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "pika-cluster.labels" -}}
+helm.sh/chart: {{ include "pika-cluster.chart" . }}
+{{ include "pika-cluster.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "pika-cluster.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "pika-cluster.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{- define "clustername" -}}
+{{ include "pika-cluster.fullname" .}}
+{{- end}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "pika-cluster.serviceAccountName" -}}
+{{- default (printf "kb-%s" (include "clustername" .)) .Values.serviceAccount.name }}
+{{- end }}

tools/kubeblocks_helm/pika-cluster/templates/cluster.yaml

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+apiVersion: apps.kubeblocks.io/v1alpha1
+kind: Cluster
+metadata:
+  name: {{ include "clustername" . }}
+  labels: {{ include "pika-cluster.labels" . | nindent 4 }}
+spec:
+  clusterDefinitionRef: pika  # ref clusterDefinition.name
+  clusterVersionRef: pika-{{ default .Chart.AppVersion .Values.clusterVersionOverride }} # ref clusterVersion.name
+  terminationPolicy: {{ .Values.terminationPolicy }}
+  affinity:
+    {{- with .Values.topologyKeys }}
+    topologyKeys: {{ . | toYaml | nindent 6 }}
+    {{- end }}
+  {{- with $.Values.tolerations }}
+  tolerations: {{ . | toYaml | nindent 4 }}
+  {{- end }}
+  componentSpecs:
+    - name: pika # user-defined
+      componentDefRef: pika # ref clusterDefinition componentDefs.name
+      monitor: {{ .Values.monitor.enabled | default false }}
+      enabledLogs: {{ .Values.enabledLogs | toJson | indent 4 }}
+      replicas: {{ .Values.replicaCount | default 2 }}
+      serviceAccountName: {{ include "pika-cluster.serviceAccountName" . }}
+      switchPolicy:
+        type: {{ .Values.switchPolicy.type}}
+      {{- with  .Values.resources }}
+      resources:
+        limits:
+          cpu: {{ .limits.cpu | quote }}
+          memory: {{ .limits.memory | quote }}
+        requests:
+          cpu: {{ .requests.cpu | quote }}
+          memory: {{ .requests.memory | quote }}
+      {{- end }}
+      {{- if .Values.persistence.enabled }}
+      volumeClaimTemplates:
+        - name: data # ref clusterdefinition components.containers.volumeMounts.name
+          spec:
+            accessModes:
+              - ReadWriteOnce
+            resources:
+              requests:
+                storage: {{ .Values.persistence.data.size }}
+      {{- end }}
+    - name: etcd # user-defined
+      componentDefRef: etcd # ref clusterdefinition components.name
+      monitor: {{ .Values.monitor.enabled | default false }}
+      replicas: {{ .Values.etcdReplicaCount| default 3 }}
+      {{- with  .Values.resources }}
+      resources:
+        {{- with .limits }}
+        limits:
+          cpu: {{ .cpu | quote }}
+          memory: {{ .memory | quote }}
+        {{- end }}
+        {{- with .requests }}
+        requests:
+          cpu: {{ .cpu | quote }}
+          memory: {{ .memory | quote }}
+        {{- end }}
+      {{- end }}
+      {{- if .Values.persistence.enabled }}
+      volumeClaimTemplates:
+        - name: data # ref clusterdefinition components.containers.volumeMounts.name
+          spec:
+            storageClassName: {{ .Values.persistence.data.storageClassName }}
+            accessModes:
+              - ReadWriteOnce
+            resources:
+              requests:
+                storage: {{ .Values.persistence.data.size }}
+      {{- end }}
+    - name: codis-proxy
+      componentDefRef: codis-proxy # ref clusterDefinition componentDefs.name
+      replicas: {{ .Values.codisProxyReplicaCount | default 2 }}
+      {{- with  .Values.resources }}
+      resources:
+        limits:
+          cpu: {{ .limits.cpu | quote }}
+          memory: {{ .limits.memory | quote }}
+        requests:
+          cpu: {{ .requests.cpu | quote }}
+          memory: {{ .requests.memory | quote }}
+      {{- end }}
+      {{- if .Values.persistence.enabled }}
+      volumeClaimTemplates:
+        - name: data # ref clusterdefinition components.containers.volumeMounts.name
+          spec:
+            accessModes:
+              - ReadWriteOnce
+            resources:
+              requests:
+                storage: {{ .Values.persistence.data.size }}
+      {{- end }}
+    - name: codis-fe
+      componentDefRef: codis-fe # ref clusterDefinition componentDefs.name
+      replicas: {{ .Values.codisFeReplicaCount | default 1 }}
+      {{- with  .Values.resources }}
+      resources:
+        limits:
+          cpu: {{ .limits.cpu | quote }}
+          memory: {{ .limits.memory | quote }}
+        requests:
+          cpu: {{ .requests.cpu | quote }}
+          memory: {{ .requests.memory | quote }}
+      {{- end }}
+      {{- if .Values.persistence.enabled }}
+      volumeClaimTemplates:
+        - name: data # ref clusterdefinition components.containers.volumeMounts.name
+          spec:
+            accessModes:
+              - ReadWriteOnce
+            resources:
+              requests:
+                storage: {{ .Values.persistence.data.size }}
+      {{- end }}
+    - name: codis-dashboard
+      componentDefRef: codis-dashboard # ref clusterDefinition componentDefs.name
+      replicas: 1
+    {{- with  .Values.resources }}
+      resources:
+        limits:
+          cpu: {{ .limits.cpu | quote }}
+          memory: {{ .limits.memory | quote }}
+        requests:
+          cpu: {{ .requests.cpu | quote }}
+          memory: {{ .requests.memory | quote }}
+    {{- end }}
+    {{- if .Values.persistence.enabled }}
+      volumeClaimTemplates:
+        - name: data # ref clusterdefinition components.containers.volumeMounts.name
+          spec:
+            accessModes:
+              - ReadWriteOnce
+            resources:
+              requests:
+                storage: {{ .Values.persistence.data.size }}
+    {{- end }}

tools/kubeblocks_helm/pika-cluster/templates/role.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: kb-{{ include "clustername" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{ include "pika-cluster.labels" . | nindent 4 }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - events
+    verbs:
+      - create

tools/kubeblocks_helm/pika-cluster/templates/rolebinding.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: kb-{{ include "clustername" . }}
+  labels:
+    {{ include "pika-cluster.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: kb-{{ include "clustername" . }}
+subjects:
+  - kind: ServiceAccount
+    name: {{ include "pika-cluster.serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}

tools/kubeblocks_helm/pika-cluster/templates/serviceaccount.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "pika-cluster.serviceAccountName" . }}
+  labels:
+    {{ include "pika-cluster.labels" . | nindent 4 }}