kubectl全部命令用法示例

• • • 1 kubectl命令总结
    • 2 kubectl命令用法测试
    • • create
      • expose
      • run
      • set
      • explain
      • get
      • edit
      • delete
      • rollout
      • scale
      • autoscale
      • certificate
      • cluster-info
      • top
      • cordon
      • uncordon
      • drain
      • taint
      • describe
      • logs
      • attach
      • exec
      • port-forward
      • proxy
      • cp
      • auth
      • debug
      • diff
      • apply
      • patch
      • replace
      • wait
      • kustomize
      • label
      • annotate
      • completion
      • api-resources
      • api-versions
      • config
      • plugin
      • version

首先来看看kubectl有哪些命令，使用 kubectl --help ，这里总结如下：

每个命令详细的用法可以使用–help查看，这里不详细记录了，我觉得还是使用的时候查看help方便，记具体的参数含义意义不大。

通过文件名或控制台输入，创建资源。 先创建一个文件file.yaml, 使用create创建一个pod

# 创建一个file.yaml 
[root@nginx k8shandbook] #cat > file.yaml << EOF 
apiVersion: v1
kind: Pod
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
    - containerPort: 80
EOF

[root@nginx k8shandbook]# kubectl create -f file.yaml 
pod/nginx created

启动暴露刚才pod的端口的svc,让外部可以访问。

[root@nginx k8shandbook]# kubectl expose po  nginx --port=80 --target-port=80 --type=NodePort
service/nginx exposed

删除刚建pod,通过run 直接启动一个pod

[root@nginx k8shandbook]# kubectl run --image=nginx:alpine nginx-app --port=80
pod/nginx-app created

将pod nginx-app中容器niginx-app的镜像版本调整为:1.9.1

[root@nginx k8shandbook]# kubectl set image pod/nginx-app  nginx-app=nginx:1.9.1
pod/nginx-app image updated

[root@nginx k8shandbook]#  kubectl explain pods
KIND:     Pod
VERSION:  v1

DEscriptION:
     Pod is a collection of containers that can run on a host. This resource is
     created by clients and scheduled onto hosts.

FIELDS:
   apiVersion	
     APIVersion defines the versioned schema of this representation of an
     object. Servers should convert recognized schemas to the latest internal
     value, and may reject unrecognized values. More info:
     https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

   kind	
     Kind is a string value representing the REST resource this object
     represents. Servers may infer this from the endpoint the client submits
     requests to. Cannot be updated. In CamelCase. More info:
     https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

   metadata