a

kubectl delete pod app

deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: first-deployment
spec:
  selector:
    matchLabels:
      run: app
  template:
    metadata:
      labels:
        run: app
    spec:
      containers:
        - name: demo
          image: app
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 3000