在k8s 中部署有状态服务MongoDB高可用集群详解（附带镜像）

apiVersion: v1
kind: Service
metadata:
  name: mongo-replset-svc
spec:
  ports:
  - port: 27017
  clusterIP: None
  selector:
    app: mongo
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: mongo-pdb
spec:
  selector:
    matchLabels:
      app: mongo
  maxUnavailable: 1
---
apiVersion: v1
kind: Service
metadata:
  name: mongo-arbiter-svc
spec:
  ports:
  - port: 27017
  clusterIP: None
  selector:
    app: mongo
    role: arbiter
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongo
spec:
  selector:
    matchLabels:
      app: mongo
  serviceName: "mongo-replset-svc"
  replicas: 5
  updateStrategy:
    type: RollingUpdate
  podManagementPolicy: OrderedReady
  template:
    metadata:
      labels:
        app: mongo
    spec:
      containers:
      - name: mongo
        image: mongo:4.2
        command:
        - mongod
        - "--replSet"
        - rs0
        - "--bind_ip"
        - "0.0.0.0"
        - "--smallfiles"
        - "--noprealloc"
        ports:
        - containerPort: 27017
        volumeMounts:
        - name: mongo-persistent-storage
          mountPath: /data/db
  volumeClaimTemplates:
  - metadata:
      name: mongo-persistent-storage
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 1Gi
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: mongo-config
data:
  mongo.conf: |
    rs0:
      members:
      0:
        host: mongo-0.mongo-replset-svc.default.svc.cluster.local:27017
      1:
        host: mongo-1.mongo-replset-svc.default.svc.cluster.local:27017
      2:
        host: mongo-2.mongo-replset-svc.default.svc.cluster.local:27017
      3:
        host: mongo-3.mongo-replset-svc.default.svc.cluster.local:27017
      4:
        host: mongo-4.mongo-replset-svc.default.svc.cluster.local:27017
      set