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写在前面
- 分享一个查看集群所有资源的小工具
- 博文内容涉及：
- 下载安装
- 常用命令 Demo
- 理解不足小伙伴帮忙指正
出其东门，有女如云。虽则如云，匪我思存。缟衣綦巾，聊乐我员。——《郑风·出其东门》
分享一个查看集群所有资源的小工具，正常如果我们要删除集群，需要删除集群的所有 API 资源，需要获取当前命名空间所有的资源，通过命令行的方式可以实现，但是往往不是很简单的命令就可以实现。今天分享的 kubectl 插件可以很方便的获取到当前所有的资源。
如果看一些常见的 API 资源，可以通过下面的命令获取
┌──[root@vms81.liruilongs.github.io]-[~/ansible/k8s-helm-create]
└─$kubectl get all -A
如果获取当前集群。命名空间所有的资源，可以通过下面的命令获取
┌──[root@vms81.liruilongs.github.io]-[~/ansible/k8s-helm-create]
└─$kubectl api-resources --verbs=list --namespaced -o name | xargs -n1 -I{} bash -c "echo @@@ {} @@@ && kubectl get {} -A && echo ---"
但是上面的命令相关还是很繁琐的，通过 ketall 我们可以很方便
下载安装
如果集群安装了 krew ,并且可以科学上网，可以通过下面的方式
┌──[root@vms81.liruilongs.github.io]-[/etc/kubernetes]
└─$kubectl krew install get-all
如果没有，可以找一台可以科学上网的机器，通过下面的方式获取二进制文件
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$wget https://github.com/corneliusweig/ketall/releases/download/v1.3.8/ketall-amd64-linux.tar.gz
解压配置为 kubectl 插件
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$tar -zxvf ketall-amd64-linux.tar.gz
LICENSE
ketall-amd64-linux
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$mv ketall-amd64-linux kubectl-ketall
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$mv kubectl-ketall /usr/local/bin/
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$kubectl ketall version
v1.3.8
使用的话，直接通过 kubectl ketall 的方式使用，也可以单独使用。当前命令为查看集群所有资源
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$kubectl ketall | head -n 10
W0109 10:40:25.597346 21774 warnings.go:70] v1 ComponentStatus is deprecated in v1.19+
W0109 10:40:26.020194 21774 warnings.go:70] policy/v1beta1 PodSecurityPolicy is deprecated in v1.21+, unavailable in v1.25+
NAME NAMESPACE AGE
componentstatus/scheduler <unknown>
componentstatus/controller-manager <unknown>
componentstatus/etcd-0 <unknown>
configmap/awx-demo-awx-configmap awx 85d
configmap/awx-operator awx 85d
configmap/awx-operator-awx-manager-config awx 85d
configmap/kube-root-ca.crt awx 85d
configmap/kube-root-ca.crt constraints-cpu-example 61d
configmap/kube-root-ca.crt default 392d
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$
可以根据 资源的年龄进行过滤，下面为过滤出 age 为小于等于 5天的 所有API 资源。
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$kubectl ketall --since 5d
W0109 10:43:15.496160 24555 warnings.go:70] v1 ComponentStatus is deprecated in v1.19+
W0109 10:43:15.917773 24555 warnings.go:70] policy/v1beta1 PodSecurityPolicy is deprecated in v1.21+, unavailable in v1.25+
NAME NAMESPACE AGE
pod/kube-apiserver-vms81.liruilongs.github.io kube-system 2d16h
pod/debug-pod liruilong-topo-namespace 2d17h
pod/k8s-pod-restart-info-collector-5db898f9dc-6x9z5 liruilong-topo-namespace 4d19h
resourcequota/object-quota-count-demo liruilong-topo-namespace 32h
resourcequota/object-quota-count-scop-demo liruilong-topo-namespace 31h
resourcequota/object-quota-demo liruilong-topo-namespace 40h
resourcequota/object-quota-sc-demo liruilong-topo-namespace 32h
apiservice.apiregistration.k8s.io/v1.crd.projectcalico.org 31h
apiservice.apiregistration.k8s.io/v1.monitoring.coreos.com 31h
apiservice.apiregistration.k8s.io/v1alpha1.monitoring.coreos.com 31h
apiservice.apiregistration.k8s.io/v1beta1.awx.ansible.com 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.0ba44ab08120c00b98611822088ab5e72674daaa3b56500037ee8ce6ce939975 3d17h
ipamhandle.crd.projectcalico.org/k8s-pod-network.12e50c1eb802af492f25d489d3696165750f0edccf7d13159316b9da5e29874e 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.17c7fa0d87a33a8636c08a1b01a0ab168fa5fd5d517444b216e9ea82c6041904 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.2b7e404e213d4cb34947adc9e9521ddb50472ffdb5dddb3f7197bcde33041e51 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.2b885252580cbc6cab440c2714bc2f32770fc72850557673d8aedfb68f44e8f9 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.4acbfc63be210af515b8d9a170d4efc4ae22f2c5ff3e8b7ee6790e1915eb6de8 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.5e26fe6c8d007fd876ba187da472cd2ee2548b814b3377fce47f368fc66c3e91 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.5f1b024ae940d84a4fb506d2a5a4b19f5c7ca4b922f8b32247eea357861122e4 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.8e6c7abaf22ae3f392420974b5cfd619d03ae033b30da18897d6b1fecf5256b2 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.a2027123276da3072f0e3a656e906ed205467c9724e798d7e0a9feecf48265c9 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.a9a44e3c0213868b00d3faf45e5d1d81aed4b3e84c23b86c480ddb50376f2965 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.ac8cda4c20d46a0cf4096155abdb9defc8e92708361b930c89fe33586b975ef1 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.b38bbc9025a9009df14a9c14acf95757cb346008314a37b85358c4765ddbe07a 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.cbb90edf58e008989dd1f6085f4bb329e20fb85a0667263741589dacb6f54c12 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.ced8d70ca681592a3b2468c6a44b411136097bede53e8fb34c0146608e3ff82c 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.e1dd4fa5dd4f4d722e1775823420d5b3d0d0c23e3fdf9d536e360a15320e8a0f 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.e2a3896a4b8ed54596b6482eb789b83477c51e272a0c7af843fdbd4bedeb8af9 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.e3602c57582cc64d2ad21f86d6f00d54ee6dabcd55d7abc4537353ab8a667452 31h
ipamhandle.crd.projectcalico.org/k8s-pod-network.e6cec51b90d9228e8e07c67df2db29e073e57c6fba48c5ccd7683c15d2fd9500 4d19h
endpointslice.discovery.k8s.io/metrics-server-n7c7l kube-system 31h
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$
可以指定命名空间过滤
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$kubectl ketall --namespace=default
NAME NAMESPACE AGE
configmap/kube-root-ca.crt default 392d
endpoints/kubernetes default 392d
secret/default-token-f2kn6 default 392d
serviceaccount/default default 392d
service/kubernetes default 392d
endpointslice.discovery.k8s.io/kubernetes default 392d
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$
多集群可以指定集群过滤
┌──[root@vms81.liruilongs.github.io]-[~/ansible/krew]
└─$kubectl ketall --only-scope=cluster
W0109 10:45:48.207990 27024 warnings.go:70] v1 ComponentStatus is deprecated in v1.19+
W0109 10:45:48.427431 27024 warnings.go:70] policy/v1beta1 PodSecurityPolicy is deprecated in v1.21+, unavailable in v1.25+
NAME NAMESPACE AGE
componentstatus/scheduler <unknown>
componentstatus/controller-manager <unknown>
componentstatus/etcd-0 <unknown>
namespace/awx 85d
namespace/constraints-cpu-example 61d
namespace/default 392d
namespace/ingress-nginx 382d
namespace/kube-node-lease 392d
namespace/kube-public 392d
namespace/kube-system 392d
.................
博文参考
https://github.com/corneliusweig/ketall