k8s kubectl 常用命令

查询节点node

kubectl get node

查询节点标签

kubectl get node --show-labels

查询所有pod

kubectl get pod -A

查询指定命名空间下的pod

kubectl get pod -n project-3428

查询pod详细

kubectl -n project-3428 get pod xxxxxxxxxxxx -o wide

POD打标签

 kubectl label pod mypod app=web 

查看资源quota

> kubectl get quota -n project-12786
NAME                  AGE   REQUEST                                                                                            LIMIT
resourcequota-12786   9d    persistentvolumeclaims: 0/50, requests.cpu: 0/1, requests.memory: 0/1Gi, requests.storage: 0/3Gi   limits.cpu: 0/1, limits.memory: 0/1Gi
> kubectl get resourcequota -n project-12786
NAME                  AGE   REQUEST                                                                                            LIMIT
resourcequota-12786   9d    persistentvolumeclaims: 0/50, requests.cpu: 0/1, requests.memory: 0/1Gi, requests.storage: 0/3Gi   limits.cpu: 0/1, limits.memory: 0/1Gi

查看存储类sc

kubectl get sc

查看存储卷PV

kubectl get pv

查看存储卷声明PVC

kubectl -n project-3428 get pvc

查看存储快照类

kubectl get vs -A

kubectl get volumesnapshotclass

查看存储快照

kubectl get volumesnapshot -n 命名空间

查看存储快照yaml

kubectl get volumesnapshot 具体的 -n 命名空间 -o yaml

查询指定命名空间的secret

kubectl get secret -n sc用的命名空间 

查看kubevirt虚拟机组，vmpool

kubectl -n project-3524 get virtualmachinepool

kubectl -n project-3524 get virtualmachinepool vp-100

kubectl -n project-3524 get virtualmachinepool vp-100 -o yaml

查看vm虚拟机

kubectl get vm -n project-3428

查看vmi镜像

kubectl get vmi -n project-3428

强制删除pod

kubectl delete pod newhuodai-0 --force --grace-period=0

kubectl delete -f busybox-two.yaml --force

kubectl delete pod -n default nginx-two-765d6fd96d-2csd2

查看csi驱动

> kubectl get csidriver
NAME                  ATTACHREQUIRED   PODINFOONMOUNT   STORAGECAPACITY   TOKENREQUESTS   REQUIRESREPUBLISH   MODES        AGE
cephfs.csi.ceph.com   true             false            false             <unset>         false               Persistent   14d
local.csi.com         false            false            false             <unset>         false               Persistent   14d
rbd.csi.ceph.com      true             false            false             <unset>         false               Persistent   14d

kubectl get csidrivers

查询endpoint

kubectl get endpoint -n project-3429

查询service

kubectl get svc -n 命名空间

pod扩缩容

kubectl apply -f nginx.yaml
kubectl get pod -n default -o wide
kubectl get deployment -n default
# 扩容
kubectl scale deployment/nginx-100 --replicas=100 -n default

# 缩容
kubectl scale deployment/nginx-100 --replicas=1 -n default

## 查询数量
kubectl get pod -n default | grep Running | wc -l

获取configmap

kubectl get cm coredns -n kube-system -o yaml

进入pod内部

kubectl exec -it  calico-node-qz54v -n kube-system bash

查看deployment

kubectl get deployment -n csi-driver

编辑deployment

kubectl edit deployment csi-controller -n csi-driver