<h2 id="before">一鍵部署 - 進版</h2>

- ### 進版，把 image 換成 alpine.base
> kubectl set image deployment.v1.apps/httpd httpd=alpine.base --record
> kubectl describe deployments httpd | grep "Image"
Image: alpine.base

<h2 id="after">一鍵部署 - 退版</h2>

- ### 退版
> kubectl rollout undo deployment.v1.apps/dep1 --to-revision=1
kubectl describe deployments httpd | grep "Image"
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