kubernetes/zookeeper.yaml

---
# Source: zookeeper/templates/scripts-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: zookeeper-scripts
  namespace: default
  labels:
    app.kubernetes.io/name: zookeeper
    helm.sh/chart: zookeeper-11.1.6
    app.kubernetes.io/instance: zookeeper
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: zookeeper
data:
  init-certs.sh: |-
    #!/bin/bash
  setup.sh: |-
    #!/bin/bash

    # Execute entrypoint as usual after obtaining ZOO_SERVER_ID
    # check ZOO_SERVER_ID in persistent volume via myid
    # if not present, set based on POD hostname
    if [[ -f "/bitnami/zookeeper/data/myid" ]]; then
        export ZOO_SERVER_ID="$(cat /bitnami/zookeeper/data/myid)"
    else
        HOSTNAME="$(hostname -s)"
        if [[ $HOSTNAME =~ (.*)-([0-9]+)$ ]]; then
            ORD=${BASH_REMATCH[2]}
            export ZOO_SERVER_ID="$((ORD + 1 ))"
        else
            echo "Failed to get index from hostname $HOST"
            exit 1
        fi
    fi
    exec /entrypoint.sh /run.sh
---
# Source: zookeeper/templates/svc-headless.yaml
apiVersion: v1
kind: Service
metadata:
  name: zookeeper-headless
  namespace: default
  labels:
    app.kubernetes.io/name: zookeeper
    helm.sh/chart: zookeeper-11.1.6
    app.kubernetes.io/instance: zookeeper
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: zookeeper
spec:
  type: ClusterIP
  clusterIP: None
  publishNotReadyAddresses: true
  ports:
    - name: tcp-client
      port: 2181
      targetPort: client
    - name: tcp-follower
      port: 2888
      targetPort: follower
    - name: tcp-election
      port: 3888
      targetPort: election
  selector:
    app.kubernetes.io/name: zookeeper
    app.kubernetes.io/instance: zookeeper
    app.kubernetes.io/component: zookeeper
---
# Source: zookeeper/templates/svc.yaml
apiVersion: v1
kind: Service
metadata:
  name: zookeeper
  namespace: default
  labels:
    app.kubernetes.io/name: zookeeper
    helm.sh/chart: zookeeper-11.1.6
    app.kubernetes.io/instance: zookeeper
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: zookeeper
spec:
  type: ClusterIP
  sessionAffinity: None
  ports:
    - name: tcp-client
      port: 2181
      targetPort: client
      nodePort: null
    - name: tcp-follower
      port: 2888
      targetPort: follower
    - name: tcp-election
      port: 3888
      targetPort: election
  selector:
    app.kubernetes.io/name: zookeeper
    app.kubernetes.io/instance: zookeeper
    app.kubernetes.io/component: zookeeper
---
# Source: zookeeper/templates/statefulset.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zookeeper
  namespace: default
  labels:
    app.kubernetes.io/name: zookeeper
    helm.sh/chart: zookeeper-11.1.6
    app.kubernetes.io/instance: zookeeper
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: zookeeper
    role: zookeeper
spec:
  replicas: 1
  podManagementPolicy: Parallel
  selector:
    matchLabels:
      app.kubernetes.io/name: zookeeper
      app.kubernetes.io/instance: zookeeper
      app.kubernetes.io/component: zookeeper
  serviceName: zookeeper-headless
  updateStrategy:
    rollingUpdate: {}
    type: RollingUpdate
  template:
    metadata:
      annotations:
      labels:
        app.kubernetes.io/name: zookeeper
        helm.sh/chart: zookeeper-11.1.6
        app.kubernetes.io/instance: zookeeper
        app.kubernetes.io/managed-by: Helm
        app.kubernetes.io/component: zookeeper
    spec:
      serviceAccountName: default
      
      affinity:
        podAffinity:
          
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app.kubernetes.io/name: zookeeper
                    app.kubernetes.io/instance: zookeeper
                    app.kubernetes.io/component: zookeeper
                topologyKey: kubernetes.io/hostname
              weight: 1
        nodeAffinity:
          
      securityContext:
        fsGroup: 1001
      initContainers:
      containers:
        - name: zookeeper
          image: docker.io/bitnami/zookeeper:3.8.1-debian-11-r18
          imagePullPolicy: "IfNotPresent"
          securityContext:
            allowPrivilegeEscalation: false
            runAsNonRoot: true
            runAsUser: 1001
          command:
            - /scripts/setup.sh
          resources:
            limits: {}
            requests:
              cpu: 250m
              memory: 256Mi
          env:
            - name: BITNAMI_DEBUG
              value: "false"
            - name: ZOO_DATA_LOG_DIR
              value: ""
            - name: ZOO_PORT_NUMBER
              value: "2181"
            - name: ZOO_TICK_TIME
              value: "2000"
            - name: ZOO_INIT_LIMIT
              value: "10"
            - name: ZOO_SYNC_LIMIT
              value: "5"
            - name: ZOO_PRE_ALLOC_SIZE
              value: "65536"
            - name: ZOO_SNAPCOUNT
              value: "100000"
            - name: ZOO_MAX_CLIENT_CNXNS
              value: "60"
            - name: ZOO_4LW_COMMANDS_WHITELIST
              value: "srvr, mntr, ruok"
            - name: ZOO_LISTEN_ALLIPS_ENABLED
              value: "no"
            - name: ZOO_AUTOPURGE_INTERVAL
              value: "0"
            - name: ZOO_AUTOPURGE_RETAIN_COUNT
              value: "3"
            - name: ZOO_MAX_SESSION_TIMEOUT
              value: "40000"
            - name: ZOO_SERVERS
              value: zookeeper-0.zookeeper-headless.default.svc.cluster.local:2888:3888::1 
            - name: ZOO_ENABLE_AUTH
              value: "no"
            - name: ZOO_ENABLE_QUORUM_AUTH
              value: "no"
            - name: ZOO_HEAP_SIZE
              value: "1024"
            - name: ZOO_LOG_LEVEL
              value: "ERROR"
            - name: ALLOW_ANONYMOUS_LOGIN
              value: "yes"
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: metadata.name
          ports:
            - name: client
              containerPort: 2181
            - name: follower
              containerPort: 2888
            - name: election
              containerPort: 3888
          livenessProbe:
            failureThreshold: 6
            initialDelaySeconds: 30
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 5
            exec:
              command: ['/bin/bash', '-c', 'echo "ruok" | timeout 2 nc -w 2 localhost 2181 | grep imok']
          readinessProbe:
            failureThreshold: 6
            initialDelaySeconds: 5
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 5
            exec:
              command: ['/bin/bash', '-c', 'echo "ruok" | timeout 2 nc -w 2 localhost 2181 | grep imok']
          volumeMounts:
            - name: scripts
              mountPath: /scripts/setup.sh
              subPath: setup.sh
            - name: data
              mountPath: /bitnami/zookeeper
      volumes:
        - name: scripts
          configMap:
            name: zookeeper-scripts
            defaultMode: 0755
        - name: data
          emptyDir: {}