我可以在执行kubectl规模部署命令时使用标志吗？

Question

我有一个小的外壳脚本。它有以下代码片段

kubectl scale deployment sample1 --replicas=0 -n sb1

kubectl scale deployment sample1 --replicas-3 -n sb1

第一个命令是缩小我的部署，第二个命令是放大。是否有任何标志/conditions (等待-for=条件=完成)可以用来确保部署被缩小和缩小？

Answer 1

在kubectl scale --help.中没有等待完成标志，您可以运行以下命令来检查副本部署是否完成：

kubectl scale deployment sample1 --replicas 5 && kubectl rollout status deployment/sample1

示例：

kubectl scale deployment sample1 --replicas 5
deployment.apps/sample1 scaled

在缩放检查推出状态后，将阻止部署状态，直到到所需副本计数的推出可用为止：

kubectl rollout status deployment/sample1
Waiting for deployment "sample1" rollout to finish: 0 of 5 updated replicas are available...
Waiting for deployment "sample1" rollout to finish: 1 of 5 updated replicas are available...
Waiting for deployment "sample1" rollout to finish: 3 of 5 updated replicas are available...
Waiting for deployment "sample1" rollout to finish: 4 of 5 updated replicas are available...
deployment "sample1" successfully rolled out

kubectl get deploy
NAME                READY   UP-TO-DATE   AVAILABLE   AGE
sample1   5/5     5            5           2m40s