k8s安装zookeeper集群

参考：https://blog.csdn.net/ljx1528/article/details/103166620

https://blog.csdn.net/miss1181248983/article/details/106588166/

二、部署

1. 拉取镜像

docker pull mirrorgooglecontainers/kubernetes-zookeeper:1.0-3.4.10

2. yaml文件

apiVersion: v1
kind: Service
metadata:
  name: zk-hs
  namespace: indoorpositioning-dev
  labels:
    app: zk
spec:
  selector:
    app: zk
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
 
---
apiVersion: v1
kind: Service
metadata:
  name: zk-cs
  namespace: indoorpositioning-dev
  labels:
    app: zk
spec:
  selector:
    app: zk
  ports:
  - port: 2181
    name: client
  
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: zk-config
  namespace: indoorpositioning-dev
data:
  ensemble: "zk-0;zk-1;zk-2"
  replicas: "3"
  jvm.heap: "512M"
  tick: "2000"
  init: "10"
  sync: "5"
  client.cnxns: "60"
  snap.retain: "3"
  purge.interval: "1"
  
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: zk-pdb
  namespace: indoorpositioning-dev
spec:
  selector:
    matchLabels:
      app: zk
  minAvailable: 2
  
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zk
  namespace: indoorpositioning-dev
spec:
  selector:
    matchLabels:
      app: zk
  serviceName: zk-hs
  replicas: 3
  updateStrategy:
    type: RollingUpdate
  podManagementPolicy: OrderedReady
  template:
    metadata:
      labels:
        app: zk
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - zk
              topologyKey: "kubernetes.io/hostname"
      containers:
      - name: zk
        image: mirrorgooglecontainers/kubernetes-zookeeper:1.0-3.4.10
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        resources:
          requests:
            cpu: "500m"
            memory: "512Mi"
        env:
        - name : ZK_ENSEMBLE
          valueFrom:
            configMapKeyRef:
              name: zk-config
              key: ensemble
        - name : ZK_REPLICAS
          valueFrom:
            configMapKeyRef:
              name: zk-config
              key: replicas
        - name : ZK_HEAP_SIZE
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: jvm.heap
        - name : ZK_TICK_TIME
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: tick
        - name : ZK_INIT_LIMIT
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: init
        - name : ZK_SYNC_LIMIT
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: tick
        - name : ZK_MAX_CLIENT_CNXNS
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: client.cnxns
        - name: ZK_SNAP_RETAIN_COUNT
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: snap.retain
        - name: ZK_PURGE_INTERVAL
          valueFrom:
            configMapKeyRef:
                name: zk-config
                key: purge.interval
        - name: ZK_CLIENT_PORT
          value: "2181"
        - name: ZK_SERVER_PORT
          value: "2888"
        - name: ZK_ELECTION_PORT
          value: "3888"
        command:
        - sh
        - -c
        - zkGenConfig.sh && zkServer.sh start-foreground
        readinessProbe:
          exec:
            command:
            - "zkOk.sh"
          initialDelaySeconds: 15
          timeoutSeconds: 5
        livenessProbe:
          exec:
            command:
            - "zkOk.sh"
          initialDelaySeconds: 15
          timeoutSeconds: 5
        volumeMounts:
        - name: data
          mountPath: /var/lib/zookeeper
      volumes:
      - name: data
        emptyDir: {}
      securityContext:
        runAsUser: 1000
        fsGroup: 1000

标签：name,ZK,config,valueFrom,zookeeper,集群,key,k8s,zk
来源： https://www.cnblogs.com/duaner92/p/14859756.html