梳理常用的K8s命令
功能说明 | 命令 |
|---|---|
node | |
查看服务器节点 | kubectl get nodes |
查看服务器节点详情 | kubectl get nodes -o wide |
节点打标签 | kubectl label nodes <节点名称> labelName=<标签名称> |
查看节点标签 | kubectl get node --show-labels |
删除节点标签 | kubectl label node <节点名称> labelName- |
pod | |
查看pod节点 | kubectl get pod |
查看pod节点详情 | kubectl get pod -o wide |
查看所有名称空间下的pod | kubectl get pod --all-namespaces |
根据yaml文件创建pod | kubectl apply -f <文件名称> |
根据yaml文件删除pod | kubectl delete -f <文件名称> |
删除pod节点 | kubectl delete pod <pod名称> -n <名称空间> |
查看异常的pod节点 | kubectl get pods -n <名称空间> |
查看异常pod节点的日志 | kubectl describe pod <pod名称> -n <名称空间> |
svc | |
查看服务 | kubectl get svc |
查看服务详情 | kubectl get svc -o wide |
查看所有名称空间下的服务 | kubectl get svc --all-namespaces |
# 查看K8s版本
点击查看
代码语言：javascript复制[root@master home]# kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.0", GitCommit:"9e991415386e4cf155a24b1da15becaa390438d8", GitTreeState:"clean", BuildDate:"2020-03-25T14:58:59Z", GoVersion:"go1.13.8", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.0", GitCommit:"9e991415386e4cf155a24b1da15becaa390438d8", GitTreeState:"clean", BuildDate:"2020-03-25T14:50:46Z", GoVersion:"go1.13.8", Compiler:"gc", Platform:"linux/amd64"}
[root@master home]# kubectl api-versions
admissionregistration.k8s.io/v1
admissionregistration.k8s.io/v1beta1
apiextensions.k8s.io/v1
apiextensions.k8s.io/v1beta1
apiregistration.k8s.io/v1
apiregistration.k8s.io/v1beta1
app.k8s.io/v1beta1
apps/v1
authentication.k8s.io/v1
authentication.k8s.io/v1beta1
authorization.k8s.io/v1
authorization.k8s.io/v1beta1
autoscaling/v1
autoscaling/v2beta1
autoscaling/v2beta2
batch/v1
batch/v1beta1
certificates.k8s.io/v1beta1
cluster.kubesphere.io/v1alpha1
coordination.k8s.io/v1
coordination.k8s.io/v1beta1
crd.projectcalico.org/v1
devops.kubesphere.io/v1alpha1
devops.kubesphere.io/v1alpha3
discovery.k8s.io/v1beta1
events.k8s.io/v1beta1
extensions/v1beta1
iam.kubesphere.io/v1alpha2
installer.kubesphere.io/v1alpha1
kubeapps.com/v1alpha1
monitoring.coreos.com/v1
monitoring.kubesphere.io/v1alpha1
network.kubesphere.io/v1alpha1
networking.k8s.io/v1
networking.k8s.io/v1beta1
node.k8s.io/v1beta1
notification.kubesphere.io/v1alpha1
policy/v1beta1
rbac.authorization.k8s.io/v1
rbac.authorization.k8s.io/v1beta1
scheduling.k8s.io/v1
scheduling.k8s.io/v1beta1
servicemesh.kubesphere.io/v1alpha2
snapshot.storage.k8s.io/v1beta1
storage.k8s.io/v1
storage.k8s.io/v1beta1
storage.kubesphere.io/v1alpha1
tenant.kubesphere.io/v1alpha1
tenant.kubesphere.io/v1alpha2
v1
[root@master home]# # 查看K8s集群信息
点击查看
代码语言：javascript复制[root@master home]# kubectl cluster-info
Kubernetes master is running at https://apiserver.cluster.local:6443
KubeDNS is running at https://apiserver.cluster.local:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
[root@master home]# kubectl -s https://apiserver.cluster.local:6443 get componentstatuses
NAME STATUS MESSAGE ERROR
scheduler Healthy ok
controller-manager Healthy ok
etcd-0 Healthy {"health":"true"}
[root@master home]# # kubetl get
点击查看
- 确认pod
[root@master ~]# kubectl get pods
如果希望得到更加详细一点的信息，可以加上-o wide参数
[root@master ~]# kubectl get pods -o wide- 确认deployment
[root@master ~]# kubectl get deployment- 确认node信息
[root@master ~]# kubectl get nodes -o wide- 确认namespace信息
[root@master ~]# kubectl get ns- 确认服务
[root@master ~]# kubectl get svc提示
待补充。。。
点击查看
