无法删除Kubernetes中的所有Pod-清除/重新启动Kubernetes [英] Unable to delete all pods in Kubernetes - Clear/restart Kubernetes

问题描述

我正在尝试删除/删除在我的环境中运行的所有Pod。当我发出

I am trying to delete/remove all the pods running in my environment. When I issue

docker ps

docker ps

我得到以下输出。这是一个示例屏幕截图。如您所见，它们都是K8。我想删除/删除所有吊舱。

I get the below output. This is a sample screenshot. As you can see that they are all K8s. I would like to delete all of the pods/remove them.

我尝试了以下所有方法，但它们不断出现

I tried all the below approaches but they keep appearing again and again

sudo kubectl delete --all pods --namespace=default/kube-public #returns "no resources found" for both default and kube-public namespaces
sudo kubectl delete --all pods --namespace=kube-system # shows "pod xxx deleted"

sudo kubectl get deployments # returns no resources found

除了上述内容，我还尝试使用 docker stop 和 docker rm 具有容器ID，但它们会重新生成。我想清除所有这些。我想从头开始

Apart from the above, I also tried using docker stop and docker rm with the container ids but they either respawn. I want to clear all of them. I would like to start from the beginning

我已经注销并多次登录，但是我仍然看到这些项目。

I have logged out and logged back in multiple times but still I see those items.

您能帮我删除所有吊舱吗，我希望 docker ps的输出中没有上面所示的任何kubernetes相关项目吗？

Can you help me to delete all the pods and I expect the output of "docker ps" to not have any kubernetes related items like shown above?

推荐答案

sudo kubectl获取部署＃返回未找到资源

部署 并不是Kubernetes中唯一可以管理您的Pod的控制器。有很多： StatefulSet ， ReplicaSet 等。（有关详细信息，请查看控制器文档）

简而言之，Controller负责确保其管理的所有Pod都在运行，并在必要时创建它们-删除所有Pod时，关联的Controller会意识到它们丢失了，只需重新-创建它们以确保其符合其规格。

In short, a Controller is responsible of ensuring all Pods it manages are running, and create them if necessary - when you delete all Pods, the associated Controller will realise they are missing and simply re-create them to ensure it matchs its specifications.

如果要有效删除所有Pod，则应删除所有相关的Controller（或更新它们以将其副本设置为0），例如：

If you want to effectively delete all Pods, you should delete all the related Controllers (or update them to set their replica to 0), such as:

# do NOT run this in the kube-system namespace, it may corrupt your cluster
# You can also specify --namespace xxx to delete in a specific namespace
kubectl delete deployment --all # configures ReplicaSets, deleting Deployments should delete ReplicaSet as well as associated Pods
kubectl delete statefulset --all
kubectl delete daemonset --all 
kubectl delete job --all
kubectl delete cronjob --all 
kubectl delete replicationcontroller --all # their should not be any ReplicationController as Deployment should be used
# Then delete what you find

编辑：如P Emkambaram 的答案是，您也可以使用 kubectl delete命名空间mynamespace 删除整个命名空间（不要删除 kube-system ），但它也可能删除名称空间中的其他组件，例如服务

as mentionned by P Emkambaram answer's you can also delete the entire namespace with kubectl delete namespace mynamespace (don't delete kube-system of course) but it may also delete other components in the namespace such as Services

重要说明：

• 在删除 kube中的Pod或对象时，也应注意-sys tem 命名空间，它与集群本身的内部管道有关。


• 您不应通过使用 docker 命令，可能会产生意想不到的效果，请改用 kubectl 。

• You should also take care when deleting Pods or object in the kube-system namespace which are related to the internal plumbing of the cluster itself.
• You should not delete directly Kubernetes components by deleting their underlying containers with docker commands, this may have unexpected effects, use kubectl instead.

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