k8s/helm-charts/zookeeper/templates/zookeeper.yaml

{{- if .Values.enabled }}
apiVersion: v1
kind: Service
metadata:
  name: {{ .Release.Name }}-zookeeper-hs
  labels:
    app: {{ .Release.Name }}-zookeeper
spec:
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
  selector:
    app: {{ .Release.Name }}-zookeeper
---
apiVersion: v1
kind: Service
metadata:
  name: {{ .Release.Name }}-zookeeper-cs
  labels:
    app: {{ .Release.Name }}-zookeeper
spec:
  ports:
  - port: 2181
    name: client
  selector:
    app: {{ .Release.Name }}-zookeeper
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: {{ .Release.Name }}-zookeeper-pdb
spec:
  selector:
    matchLabels:
      app: {{ .Release.Name }}-zookeeper
  maxUnavailable: 1
---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: {{ .Release.Name }}-zookeeper
  labels:
    chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
    release: {{ .Release.Name }}
spec:
  selector:
    matchLabels:
      app: {{ .Release.Name }}-zookeeper
  serviceName: {{ .Release.Name }}-zookeeper-hs
  replicas: {{.Values.replicas}}
  updateStrategy:
    type: RollingUpdate
  podManagementPolicy: Parallel
  template:
    metadata:
      labels:
        app: {{ .Release.Name }}-zookeeper
    spec:
{{- if .Values.affinity }}
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - {{ .Release.Name }}-zookeeper
              topologyKey: "kubernetes.io/hostname"
{{end}}
      containers:
      - name: kubernetes-zookeeper
        image: "k8s.gcr.io/kubernetes-zookeeper:1.0-3.4.10"
        resources:
          requests:
            memory: "1Gi"
            cpu: "0.5"
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        command:
        - sh
        - -c
        - "start-zookeeper \
          --servers={{.Values.replicas}} \
          --data_dir=/var/lib/zookeeper/data \
          --data_log_dir=/var/lib/zookeeper/data/log \
          --conf_dir=/opt/zookeeper/conf \
          --client_port=2181 \
          --election_port=3888 \
          --server_port=2888 \
          --tick_time=2000 \
          --init_limit=10 \
          --sync_limit=5 \
          --heap=512M \
          --max_client_cnxns=60 \
          --snap_retain_count=3 \
          --purge_interval=12 \
          --max_session_timeout=40000 \
          --min_session_timeout=4000 \
          --log_level=INFO"
        readinessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        volumeMounts:
        - name: zookeeper-datadir
          mountPath: /var/lib/zookeeper
{{- if .Values.persistence.enabled }}
  volumeClaimTemplates:
  - metadata:
      name: zookeeper-datadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: {{ .Values.persistence.size }}
{{- else }}
      volumes:
        - name: zookeeper-datadir
          emptyDir: {}
{{- end }}
{{end}}