k8s部署单节点postgresql并使用local-path-provisioner storageClass作为持久化存储

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部署headless svc

apiVersion: v1
kind: Service
metadata:
  name: postgres-headless
  labels:
    app: postgres-headless
spec:
  ports:
  - port: 5432
    name: postgres
  clusterIP: None
  selector:
    app: postgres-log

部署postgresql

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgres-log
spec:
  serviceName: "postgres-headless"
  replicas: 1
  selector:
    matchLabels:
      app: postgres-log
  template:
    metadata:
      labels:
        app: postgres-log
    spec:
      containers:
      - name: postgres-log
        image: postgres:16.13-bookworm
        ports:
        - containerPort: 5432
          name: postgres
        env:
        - name: POSTGRES_HOST_AUTH_METHOD
          value: trust
        volumeMounts:
        - name: postgres-data
          mountPath: /var/lib/postgresql/data
        resources:
          requests:
            memory: "512Mi"
            cpu: "250m"
        livenessProbe:
          exec:
            command: ["pg_isready", "-U", "postgres"]
          initialDelaySeconds: 30
          periodSeconds: 10
        readinessProbe:
          exec:
            command: ["pg_isready", "-U", "postgres"]
          initialDelaySeconds: 5
          periodSeconds: 5
  volumeClaimTemplates:
  - metadata:
      name: postgres-data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: "local-path"  # 指定存储类
      resources:
        requests:
          storage: 1200Gi

部署NodePort svc 用于外部访问

apiVersion: v1
kind: Service
metadata:
  name: postgres-log-np
  labels:
    app: postgres-log-np
spec:
  ports:
  - name: postgres-log-np
    nodePort: 25432
    port: 5432
    protocol: TCP
    targetPort: 5432
  selector:
    name: postgres-log
  type: NodePort