statefulset.yaml

apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: {{ template "zookeeper.fullname" . }}
  labels:
    app: {{ include "zookeeper.name" . | quote }}
    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
    release: {{ .Release.Name | quote }}
    heritage: {{ .Release.Service | quote }}
spec:
  serviceName: {{ template "zookeeper.fullname" . }}-headless
  replicas: {{ .Values.servers }}
  updateStrategy:
{{ toYaml .Values.updateStrategy | indent 4 }}
  template:
    metadata:
      labels:
        app: {{ include "zookeeper.name" . | quote }}
        release: {{ .Release.Name | quote }}
    spec:
{{- if .Values.tolerations }}
      tolerations:
{{ toYaml .Values.tolerations | indent 8 }}
{{- end }}
{{- if .Values.schedulerName }}
      schedulerName: "{{ .Values.schedulerName }}"
{{- end }}
{{- if .Values.affinity }}
      affinity:
{{ toYaml .Values.affinity | indent 8 }}
{{- end }}
{{- if .Values.nodeSelector }}
      nodeSelector:
{{ toYaml .Values.nodeSelector | indent 8 }}
{{- end }}
      containers:
      - name: {{ template "zookeeper.name" . }}-server
        imagePullPolicy: {{ .Values.imagePullPolicy }}
        image: gcr.io/google_samples/k8szk:v2
        resources:
{{ toYaml .Values.resources | indent 10 }}
        ports:
        - containerPort: {{ .Values.clientPort }}
          name: client
        - containerPort: {{ .Values.serverPort }}
          name: server
        - containerPort: {{ .Values.leaderElectionPort }}
          name: leader-election
        env:
        - name : ZK_REPLICAS
          value: "{{ .Values.servers }}"
        - name : ZK_HEAP_SIZE
          value: "{{ .Values.heap }}"
        - name : ZK_TICK_TIME
          value: "{{ .Values.tickTimeMs }}"
        - name : ZK_INIT_LIMIT
          value: "{{ .Values.initTicks }}"
        - name : ZK_SYNC_LIMIT
          value: "{{ .Values.syncTicks }}"
        - name : ZK_MAX_CLIENT_CNXNS
          value: "{{ .Values.clientCnxns }}"
        - name: ZK_SNAP_RETAIN_COUNT
          value: "{{ .Values.snapRetain }}"
        - name: ZK_PURGE_INTERVAL
          value: "{{ .Values.purgeHours }}"
        - name: ZK_LOG_LEVEL
          value: {{ .Values.logLevel }}
        - name: ZK_CLIENT_PORT
          value: "{{ .Values.clientPort }}"
        - name: ZK_SERVER_PORT
          value: "{{ .Values.serverPort }}"
        - name: ZK_ELECTION_PORT
          value: "{{ .Values.leaderElectionPort }}"
        command:
        - sh
        - -c
        - zkGenConfig.sh && exec zkServer.sh start-foreground
        readinessProbe:
          exec:
            command:
            - "zkOk.sh"
          initialDelaySeconds: {{ .Values.probeInitialDelaySeconds }}
          timeoutSeconds: {{ .Values.probeTimeoutSeconds }}
        livenessProbe:
          exec:
            command:
            - "zkOk.sh"
          initialDelaySeconds: {{ .Values.probeInitialDelaySeconds }}
          timeoutSeconds: {{ .Values.probeTimeoutSeconds }}
        volumeMounts:
        - name: datadir
          mountPath: /var/lib/zookeeper
          subPath: data
      {{ if not .Values.persistence.enabled }}
      volumes:
      - name: datadir
        emptyDir: {}
      {{- end }}
      {{- if eq .Values.security.enabled true }}
      securityContext:
        runAsUser: {{ .Values.security.runAsUser }}
        fsGroup: {{ .Values.security.fsGroup }}
      {{- end }}
  {{- if .Values.persistence.enabled }}
  volumeClaimTemplates:
  - metadata:
      name: datadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: {{ .Values.persistence.size }}
      {{- if .Values.persistence.storageClass }}
      {{- if (eq "-" .Values.persistence.storageClass) }}
      storageClassName: ""
      {{- else }}
      storageClassName: "{{ .Values.persistence.storageClass }}"
      {{- end }}
      {{- end }}
  {{- end }}