replication-controller.yml

apiVersion: v1
kind: ReplicationController
metadata:
        name: nginx
spec:
        replicas: 3
        selector:
                app: nginx
        template:
                metadata:
                        name: nginx
                        labels:
                                app: nginx
                spec:
                        containers:
                        - name: nginx
                          image: nginx
                          ports:
                          - containerPort: 80