cat  << EOF > replicaset-cndk.yaml
apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: replicaset-cndk
spec:
  replicas: 3
  selector:
    matchLabels:
      app: cndk-nginx-pods
  template:
    metadata:
      name: cndk-nginx-pod
      labels:
        app: cndk-nginx-pods
    spec:
      containers:
      - name: nginx
        image: nginx:latest
EOF