postgresql-db-service.yaml

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgresql-server
spec:
  selector:
    matchLabels:
      app: postgresql-server
  serviceName: postgresql-server
  replicas: 1
  template:
    metadata:
      labels:
        app: postgresql-server
    spec:
      containers:
        - name: postgresql-server
          image: postgres:9.6
          env:
            - name: POSTGRES_USER
              value: postgres_exporter
            - name: POSTGRES_PASSWORD
              value: "123456789"
            - name: POSTGRES_DB
              value: postgres_exporter
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          resources:
            requests:
              cpu: 100m
              memory: 100Mi
            limits:
              cpu: 200m
              memory: 200Mi
          ports:
            - containerPort: 5432
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: pg-data
      volumes:
        - name: pg-data
          emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: zync-database
spec:
  ports:
  - name: postgresql-server
    port: 5432
    targetPort: 5432
    protocol: TCP
  selector:
    app: postgresql-server