Kubectl expose

1 개요

kubectl expose

$ kubectl get services
NAME         TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   15s

$ kubectl expose deployment/kubernetes-bootcamp --type="NodePort" --port 8080
service "kubernetes-bootcamp" exposed

$ kubectl get services
NAME                  TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE
kubernetes            ClusterIP   10.96.0.1      <none>        443/TCP          22s
kubernetes-bootcamp   NodePort    10.100.84.34   <none>        8080:31392/TCP   5s

2 실습

master:~$ kubectl create deployment nginx --image=nginx
deployment.apps/nginx created

master:~$ kubectl get all -l app=nginx
NAME                         READY   STATUS    RESTARTS   AGE
pod/nginx-65f88748fd-77jm4   1/1     Running   0          16s

NAME                    READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/nginx   1/1     1            1           16s

NAME                               DESIRED   CURRENT   READY   AGE
replicaset.apps/nginx-65f88748fd   1         1         1       16s

master:~$ kubectl expose deployment nginx 
error: couldn't find port via --port flag or introspection
See 'kubectl expose -h' for help and examples

master:~$ kubectl expose deployment nginx --port 80
service/nginx exposed

master:~$ kubectl get all -l app=nginx
NAME                         READY   STATUS    RESTARTS   AGE
pod/nginx-65f88748fd-77jm4   1/1     Running   0          2m50s

NAME            TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
service/nginx   ClusterIP   10.105.247.20   <none>        80/TCP    3s

NAME                    READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/nginx   1/1     1            1           2m50s

NAME                               DESIRED   CURRENT   READY   AGE
replicaset.apps/nginx-65f88748fd   1         1         1       2m50s

master:~$ kubectl delete service/nginx
service "nginx" deleted

master:~$ kubectl expose deployment nginx --port 80 --type=NodePort
service/nginx exposed

master:~$ kubectl get all -l app=nginx
NAME                         READY   STATUS    RESTARTS   AGE
pod/nginx-65f88748fd-77jm4   1/1     Running   0          4m41s

NAME            TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
service/nginx   NodePort   10.96.18.173   <none>        80:31506/TCP   5s

NAME                    READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/nginx   1/1     1            1           4m41s

NAME                               DESIRED   CURRENT   READY   AGE
replicaset.apps/nginx-65f88748fd   1         1         1       4m41s

3 같이 보기

• kubectl get services
• kubectl describe
• kubectl
• Dockerfile EXPOSE