apiVersion: v1
kind: Service
metadata:
  name: etcd-headless
  namespace: liulei
  labels:
    app: etcd
spec:
  ports:
  - port: 2380
    name: etcd-server
  - port: 2379
    name: etcd-client
  clusterIP: None
  selector:
    app: etcd
  publishNotReadyAddresses: true
--- 
apiVersion: v1
kind: Service
metadata:
  labels:
    app: etcd
  name: etcd-svc
  namespace: liulei
spec:
  ports:
  - name: etcd-cluster
    port: 2379
    targetPort: 2379
  selector:
    app: etcd
  sessionAffinity: None
  type: NodePort
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app: etcd
  name: etcd
  namespace: liulei
spec:
  replicas: 3
  selector:
    matchLabels:
      app: etcd
  serviceName: etcd-headless
  template:
    metadata:
      labels:
        app: etcd
      name: etcd
    spec:
      containers:
        - env:
          - name: MY_POD_NAME  #当前pod名
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: CLUSTER_NAMESPACE  #名称空间
            valueFrom: 
              fieldRef:
                fieldPath: metadata.namespace
          - name: SERVICE_NAME   #内部通信的无头服务名称
            value: "etcd-headless"
          - name: INITIAL_CLUSTER   #initial-cluster的值
            value: "etcd-0=http://etcd-0.etcd-headless.liulei:2380,etcd-1=http://etcd-1.etcd-headless.liulei:2380,etcd-2=http://etcd-2.etcd-headless.liulei:2380"
          image: registry.cn-hangzhou.aliyuncs.com/leige24/k8s-etcd:v1
          imagePullPolicy: Always
          name: etcd
          ports:
          - containerPort: 2380
            name: peer
            protocol: TCP
          - containerPort: 2379
            name: client
            protocol: TCP
          resources:
            requests:
              memory: "1Gi"
              cpu: "1000m"
            limits:
              memory: "1Gi"
              cpu: "1000m"
          volumeMounts:
          - mountPath: /var/lib/etcd
            name: data-etcd
  updateStrategy:
    type: OnDelete
  volumeClaimTemplates:
  - metadata:
      name: data-etcd
    spec:
      accessModes: [ "ReadWriteMany" ]
      storageClassName: storageclass-default
      resources:
        requests:
          storage: 1Gi