my-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        # image: nginx:1.7.9
        image: adongy/hostname-docker
        ports:
        - containerPort: 3000
---
apiVersion: v1
kind: Service
metadata:
  name: my-www
spec:
  type: clusterIP
  selector:
    app: nginx
  ports:
    - name: http
      protocol: TCP
      port: 80
      targetPort: 3000
  type: ClusterIP
  externalIPs:
    - 192.168.100.95

cdsl@k8s-study1:~$ k get all
NAME                                    READY   STATUS    RESTARTS   AGE
pod/nginx-deployment-7bd544b9fb-2tbmj   1/1     Running   0          3m41s
pod/nginx-deployment-7bd544b9fb-bwrpr   1/1     Running   0          3m41s
pod/nginx-deployment-7bd544b9fb-tlggp   1/1     Running   0          3m41s


NAME                 TYPE        CLUSTER-IP      EXTERNAL-IP      PORT(S)   AGE
service/kubernetes   ClusterIP   10.152.183.1    <none>           443/TCP   2d
service/my-www       ClusterIP   10.152.183.52   192.168.100.95   80/TCP    3m41s


NAME                               READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/nginx-deployment   3/3     3            3           3m41s

NAME                                          DESIRED   CURRENT   READY   AGE
replicaset.apps/nginx-deployment-7bd544b9fb   3         3         3       3m41s