如果你想删除所有命名空间中的pod，只是为了让它们重新启动，并且你知道其中一些将被重新创建，我喜欢下面的for循环:

for i in $(kubectl get pods -A | awk '{print $1}' | uniq | grep -V NAMESPACE); do kubectl delete --all pods -n $i; done

下面是一个单行程序，可以使用grep进行扩展以按名称过滤。

kubectl get pods -o jsonpath="{.items[*].metadata.name}" | \
tr " " "\n" | \
xargs -i -P 0 kubectl delete pods {}

如果你有多个pod崩溃或出错，你想删除它们

Kubectl delete pods——all -n | gep

你只需要sed这样做:

kubectl get pods --no-headers=true --all-namespaces |sed -r 's/(\S+)\s+(\S+).*/kubectl --namespace \1 delete pod \2/e'

解释道:

use command kubectl get pods --all-namespaces to get the list of all pods in all namespaces. use --no-headers=true option to hide the headers. use s command of sed to fetch the first two words, which represent namespace and pod's name respectively, then assemble the delete command using them. the final delete command is just like: kubectl --namespace kube-system delete pod heapster-eq3yw. use the e modifier of s command to execute the command assembled above, which will do the actual delete works.

为了避免在kube-system namespace中删除pods，只需要在sed命令前添加grep -v kube-system排除kube-system namespace即可。

如果你有hpa，那么缩小。

仅删除所有命名空间中的所有pod(重新启动部署)

 kubectl get pod -A -o yaml | kubectl delete -f -