apiVersion: apps/v1
kind: Deployment
metadata:
  name: A3
spec:
  replicas: 1
  selector:
    matchLabels:
      app: A3
  template:
    metadata:
      labels:
        app: A3
    spec:
      containers:
        - name: A3
          image: harbor.example.com/simple-demo/simple-demo:dev-placeholder
          ports:
            - containerPort: 3000