在k8s中以Deployment方式部署zookeeper集群

在k8s中部署zookeeper集群

根据业务要求，我们打算在k8s中以Deployment方式部署zk集群

注：并非使用stateful形式

以下是相关的 zk-service.yaml 和 zookeeper.yaml

apiVersion: v1
kind: Service
metadata:
  name: zoo1
  labels:
    app: zookeeper-1
spec:
  ports:
  - name: client
    port: 2181
    protocol: TCP
  - name: follower
    port: 2888
    protocol: TCP
  - name: leader
    port: 3888
    protocol: TCP
  selector:
    app: zookeeper-1
---
apiVersion: v1
kind: Service
metadata:
  name: zoo2
  labels:
    app: zookeeper-2
spec:
  ports:
  - name: client
    port: 2181
    protocol: TCP
  - name: follower
    port: 2888
    protocol: TCP
  - name: leader
    port: 3888
    protocol: TCP
  selector:
    app: zookeeper-2
---
apiVersion: v1
kind: Service
metadata:
  name: zoo3
  labels:
    app: zookeeper-3
spec:
  ports:
  - name: client
    port: 2181
    protocol: TCP
  - name: follower
    port: 2888
    protocol: TCP
  - name: leader
    port: 3888
    protocol: TCP
  selector:
    app: zookeeper-3
---

kind: Deployment
apiVersion: apps/v1
metadata:
  name: zookeeper-deployment-1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zookeeper-1
      name: zookeeper-1
  template:
    metadata:
      labels:
        app: zookeeper-1
        name: zookeeper-1
    spec:
      containers:
      - name: zoo1
        image: hbp/zookeeper:3.6.3
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 2181
        env:
        - name: ZOOKEEPER_ID
          value: "1"
        - name: ZOOKEEPER_SERVER_1
          value: zoo1
        - name: ZOOKEEPER_SERVER_2
          value: zoo2
        - name: ZOOKEEPER_SERVER_3
          value: zoo3
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: zookeeper-deployment-2
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zookeeper-2
      name: zookeeper-2
  template:
    metadata:
      labels:
        app: zookeeper-2
        name: zookeeper-2
    spec:
      containers:
      - name: zoo2
        image: hbp/zookeeper:3.6.3
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 2181
        env:
        - name: ZOOKEEPER_ID
          value: "2"
        - name: ZOOKEEPER_SERVER_1
          value: zoo1
        - name: ZOOKEEPER_SERVER_2
          value: zoo2
        - name: ZOOKEEPER_SERVER_3
          value: zoo3
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: zookeeper-deployment-3
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zookeeper-3
      name: zookeeper-3
  template:
    metadata:
      labels:
        app: zookeeper-3
        name: zookeeper-3
    spec:
      containers:
      - name: zoo3
        image: hbp/zookeeper:3.6.3
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 2181
        env:
        - name: ZOOKEEPER_ID
          value: "3"
        - name: ZOOKEEPER_SERVER_1
          value: zoo1
        - name: ZOOKEEPER_SERVER_2
          value: zoo2
        - name: ZOOKEEPER_SERVER_3
          value: zoo3

实践表明，这些deployments的确可以部署成功，但均基于单机(standalone)模式，它们彼此并没有通过其中的env servers联系起来，是否需要以ip地址或主机名联系起来组建成集群？而不是服务名zoo1/zoo2/zoo3