kind: Deployment
apiVersion: apps/v1
metadata:
  name: postgres
  labels:
    app.kubernetes.io/name: postgres
    app.kubernetes.io/part-of: microservice
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: postgres
  replicas: 1
  template:
    metadata:
      labels:
        app.kubernetes.io/name: postgres
        app.kubernetes.io/part-of: microservice
    spec:
      containers:
        - name: postgres
          image: postgres          
          ports:
            - containerPort: 5432
          env:            
            - name: POSTGRES_USER
              value: postgres
            - name: POSTGRES_PASSWORD
              value: pass@word1

--- 
apiVersion: v1
kind: Service
metadata:
  name: postgres
  labels:
    app.kubernetes.io/name: postgres
    app.kubernetes.io/part-of: microservice
spec:
  ports:
    - port: 5432
      targetPort: 5432
  selector:
    app.kubernetes.io/name: postgres