• run test deploy

      [root@k8s-master ~]# kubectl run --image=nginx --port=80 --replicas=2 test-nginx

  • scale replica

      [root@k8s-master ~]# kubectl scale --replicas=1 deploy/test-nginx
  [root@k8s-master ~]# kubectl get deploy
  NAME         DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
  busybox      2         2         2            2           39d
  busybox1     1         1         1            1           39d
  test-nginx   1         1         1            1           2h

  • update image

      [root@k8s-master ~]# kubectl set image  deploy/test-nginx test-nginx=nginx:alpine

  • 查看升级历史

      [root@k8s-master ~]# kubectl rollout history deploy/test-nginx
  deployments "test-nginx"
  REVISION  CHANGE-CAUSE
  1         <none>
  2         <none>

  • 回顾至上次版本

      [root@k8s-master ~]# kubectl rollout undo deploy/test-nginx
  [root@k8s-master ~]# kubectl rollout history deploy/test-nginx
  deployments "test-nginx"
  REVISION  CHANGE-CAUSE
  2         <none>
  3         <none>

  • 回滚至指定版本

      [root@k8s-master ~]# kubectl rolloutundo deployment/lykops-dpm --to-revision=2