## Service
kind: Service
apiVersion: v1
metadata:
  name: gitlab-postgresql
  labels:
    name: gitlab-postgresql
spec:
  ports:
    - name: postgres
      protocol: TCP
      port: 5432
      targetPort: postgres
  selector:
    name: postgresql
  type: ClusterIP
---
## Deployment
kind: Deployment
apiVersion: apps/v1
metadata:
  name: postgresql
  labels:
    name: postgresql
spec:
  replicas: 1
  selector:
    matchLabels:
      name: postgresql
  template:
    metadata:
      name: postgresql
      labels:
        name: postgresql
    spec:
      containers:
      - name: postgresql
        image: sameersbn/postgresql:12-20200524
        ports:
        - name: postgres
          containerPort: 5432
        env:
        - name: DB_USER
          value: gitlab
        - name: DB_PASS
          value: admin@mydlq
        - name: DB_NAME
          value: gitlabhq_production
        - name: DB_EXTENSION
          value: 'pg_trgm,btree_gist'
        resources: 
          requests:
            cpu: 2
            memory: 2Gi
          limits:
            cpu: 2
            memory: 2Gi
        livenessProbe:
          exec:
            command: ["pg_isready","-h","localhost","-U","postgres"]
          initialDelaySeconds: 30
          timeoutSeconds: 5
          periodSeconds: 10
          successThreshold: 1
          failureThreshold: 3
        readinessProbe:
          exec:
            command: ["pg_isready","-h","localhost","-U","postgres"]
          initialDelaySeconds: 5
          timeoutSeconds: 1
          periodSeconds: 10
          successThreshold: 1
          failureThreshold: 3
        volumeMounts:
        - name: data
          mountPath: /var/lib/postgresql
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: postgresql