0.创建目录

mkdir -pv /data/pv/zk{1..3}

1.创建命名空间（非必须，根据自己实际情况灵活处理）

kubectl create ns bigdata

2.创建pv,pvc

# k8s编排文件存放目录
cd /data/k8s/bigdata
vim k8s-zk-pv-pvc.yaml

apiVersion: v1
kind: PersistentVolume
metadata: 
  name: k8s-pv-zk1
  namespace: bigdata
  labels: 
    type: local
spec: 
  capacity: 
    storage: 2Gi
  accessModes: 
    - ReadWriteOnce
  hostPath: 
    path: /data/pv/zk1
  persistentVolumeReclaimPolicy: Recycle
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: k8s-pv-zk2
  namespace: bigdata
  labels:
    type: local
spec:
  capacity:
    storage: 2Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: /data/pv/zk2
  persistentVolumeReclaimPolicy: Recycle
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: k8s-pv-zk3
  namespace: bigdata
  labels:
    type: local
spec:
  capacity:
    storage: 2Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: /data/pv/zk3
  persistentVolumeReclaimPolicy: Recycle

创建pv,pvc

kubectl  apply  -f  k8s-zk-pv-pvc.yaml

查看部署状态：

kubectl get pv

3.编排zk集群服务

vi k8s-zk-cluster.yaml

apiVersion: v1
kind: Service
metadata:
  name: zk-hs
  namespace: bigdata
  labels:
    app: zk
spec:
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
  selector:
    app: zk
---
apiVersion: v1
kind: Service
metadata:
  name: zk-cs
  namespace: bigdata
  labels:
    app: zk
spec:
  ports:
  - port: 2181
    name: client
  selector:
    app: zk
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: zk-pdb
  namespace: bigdata
spec:
  selector:
    matchLabels:
      app: zk
  maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zk
  namespace: bigdata
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: kubernetes-zookeeper
        imagePullPolicy: IfNotPresent
        image: "mirrorgcrio/kubernetes-zookeeper:1.0-3.4.10"
        resources:
          requests:
            memory: "500Mi"
            cpu: "0.5"
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        command:
        - sh
        - -c
        - "start-zookeeper \
          --servers=3 \
          --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: datadir
          mountPath: /var/lib/zookeeper
  volumeClaimTemplates:
  - metadata:
      name: datadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 2Gi

部署集群

kubectl apply -f k8s-zk-cluster.yaml

查看pod
查看pv绑定状态：

kubectl get pvc -n bigdata -o wide

查看zk配置：

kubectl exec -n bigdata zk-0 -- cat /opt/zookeeper/conf/zoo.cfg

查看zk集群状态信息：