apiVersion: apps/v1
kind: Deployment
metadata:
  name: blog-app
  namespace: myapp-namespace
  labels:
    app: blog
spec:
  replicas: 1
  selector:
    matchLabels:
      app: blog
  template:
    metadata:
      labels:
        app: blog
    spec:
      containers:
      - name: blog-app
        image: blog-app:latest
        imagePullPolicy: Never
        ports:
        - containerPort: 5000
        env:
        - name: DB_HOST
          value: "blog-db-service"
        - name: POSTGRES_DB
          value: "blogdb"
        - name: POSTGRES_USER
          value: "admin"
        - name: POSTGRES_PASSWORD
          value: "password"