如何列出不存在的名称空间的所有对象?

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问题描述

好的，标题很充实.但这实际上是在描述情况.

我在名称空间argo-events中的GKE上部署了服务.它出了点问题，所以我将其拆了:

  kubectl删除名称空间argo-events

实际上，问题已经开始(我怀疑与下面描述的问题有关)，我不得不求助于

argo-events未由 kubectl get命名空间列出.只是确认一下.

如果我专门查找它们，我可以找到这两个对象:

  $ kubectl get eventbus -n argo-events姓名年龄默认17小时$ kubectl获取事件源-n argo-events姓名年龄pubsub-event-source 14h

但是-我无法通过询问所有对象找到任何东西:

  $ kubectl获得所有-n argo-events在argo-events命名空间中找不到资源.

所以我的问题是.如何在Argo事件中通用列出所有挥之不去的对象?

我问，因为否则我将不得不检查整个对象浏览器树以找到更多对象(因为我无法再选择名称空间).

解决方案

使用命令 $ kubectl get all ，您将只打印一些资源，例如:

pod
服务
daemonset
部署
复制包
statefulset
工作
cronjobs

当您使用 $ kubectl api-resources 时，它不会打印所有可以找到的资源.

示例

从 PersistentVolume 文档中，它不会在 $ kubectl get all 输出中列出，但是如果您指定此资源，它将被列出.

  $ kubectl apply -f https://raw.githubusercontent.com/kubernetes/website/master/content/en/examples/pods/storage/pv-volume.yaml创建了persistentvolume/task-pv-volume$ kubectl获取光伏名称能力访问模式声明策略状态声明存储类原因年龄task-pv-volume 10Gi RWO Retain可用手册3m12s$ kubectl全部获得名称类型集群IP外部IP端口的年龄服务/kubernetes ClusterIP 10.3.240.1< none>443/TCP 86分钟$

如果要列出特定 namespace 中的所有资源，则应使用以下命令:

  kubectl -n argo-events api-resources --namespaced = true -o名称|xargs --verbose -I {} kubectl -n argo-events get {} --show-kind --ignore-not-found

上述解决方案是在Github线程中提出的. kubectl get all不列出命名空间中的所有资源.在该线程中，您可能会发现上述命令的一些其他变体.

此外，您还可以检查如何在Kubernetes命名空间中列出所有资源.您可以找到使用 function 函数列出资源的方法.

Okay, the title is quite mouthful. But it's actually describing the situation.

I deployed a service on GKE in namespace argo-events. Something was wrong with it so I tore it down:

kubectl delete namespace argo-events

Actually, that's already where the problems started (I suspect a connection to the problem described below) and I had to resort to a hack because argo-events got stuck in a Terminating state forever. But the result was as desired - namespace seemed to be gone together with all objects in it.

Because of problems with redeployment I inspected the GKE Object Browser (just looking around - cannot filter for argo-events namespace anymore as it is officially gone) where I stumbled upon two lingering objects in ns argo-events:

argo-events is not listed by kubectl get namespaces. Just confirming that.

And I can find those two objects if I look them up specifically:

$ kubectl get eventbus -n argo-events
NAME      AGE
default   17h

$ kubectl get eventsource -n argo-events
NAME                  AGE
pubsub-event-source   14h

But - I cannot find anything by asking for all objects:

$ kubectl get all -n argo-events
No resources found in argo-events namespace.

So my question is. How can I generically list all lingering objects in argo-events?

I'm asking because otherwise I'd have to inspect the entire Object Browser Tree to maybe find more objects (as I cannot select the namespace anymore).

解决方案

By using command $ kubectl get all you will only print a few resources like:

pod
service
daemonset
deployment
replicaset
statefulset
job
cronjobs

It won't print all resources which can be found when you will use $ kubectl api-resources.

Example

When create PV from PersistentVolume docsumentation it won't be listed in $ kubectl get all output, but it will be listed if you will specify this resource.

$ kubectl apply -f https://raw.githubusercontent.com/kubernetes/website/master/content/en/examples/pods/storage/pv-volume.yaml
persistentvolume/task-pv-volume created
$ kubectl get pv
NAME             CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM   STORAGECLASS   REASON   AGE
task-pv-volume   10Gi       RWO            Retain           Available           manual                  3m12s
$ kubectl get all
NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/kubernetes   ClusterIP   10.3.240.1   <none>        443/TCP   86m
$

If you would like to list all resources from specific namespace you should use command below:

kubectl -n argo-events api-resources --namespaced=true -o name | xargs --verbose -I {} kubectl -n argo-events get {} --show-kind --ignore-not-found

Above solution was presented in Github thread kubectl get all does not list all resources in a namespace. In this thread you might find some additional variations of above command.

In addition, you can also check How to List all Resources in a Kubernetes Namespace article. You can find there method to list resources using function.

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