apiVersion: v1
kind: ReplicationController
metadata:
  name: nginx-controller
spec:
  replicas: 1
  # selector identifies the set of Pods that this
  # replication controller is responsible for managing
  selector:
    app: nginx
  # podTemplate defines the cookie cutter used for creating
  # new pods when necessary
  template:
    metadata:
      labels:
        # Important: these labels need to match the selector above
        # The api server enforces this constraint.
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  ports:
  - port: 80 # the port that this service should serve on
    # the container on each pod to connect to, can be a name
    # (e.g. www) or a number (e.g. 80)
    targetPort: 80
    protocol: TCP
  # just like the selector in the replication controller,
  # but this time it identifies the set of pods to load balance
  # traffic to.
  selector:
    app: nginx