kubectl
是k8s的命令行工具，你可以使用 kubectl 创建、检视、更新和删除 Kubernetes 对象。
qlz@k8smaster:~$ kubectl
kubectl controls the Kubernetes cluster manager.
Find more information at: https://kubernetes.io/docs/reference/kubectl/overview/
Basic Commands (Beginner):
create Create a resource from a file or from stdin.
expose Take a replication controller, service, deployment or pod and expose it as a new Kubernetes Service
run Run a particular image on the cluster
set Set specific features on objects
Basic Commands (Intermediate):
explain Documentation of resources
get Display one or many resources
edit Edit a resource on the server
delete Delete resources by filenames, stdin, resources and names, or by resources and label selector
Deploy Commands:
rollout Manage the rollout of a resource
scale Set a new size for a Deployment, ReplicaSet or Replication Controller
autoscale Auto-scale a Deployment, ReplicaSet, or ReplicationController
Cluster Management Commands:
certificate Modify certificate resources.
cluster-info Display cluster info
top Display Resource (CPU/Memory/Storage) usage.
cordon Mark node as unschedulable
uncordon Mark node as schedulable
drain Drain node in preparation for maintenance
taint Update the taints on one or more nodes
Troubleshooting and Debugging Commands:
describe Show details of a specific resource or group of resources
logs Print the logs for a container in a pod
attach Attach to a running container
exec Execute a command in a container
port-forward Forward one or more local ports to a pod
proxy Run a proxy to the Kubernetes API server
cp Copy files and directories to and from containers.
auth Inspect authorization
Advanced Commands:
diff Diff live version against would-be applied version
apply Apply a configuration to a resource by filename or stdin
patch Update field(s) of a resource using strategic merge patch
replace Replace a resource by filename or stdin
wait Experimental: Wait for a specific condition on one or many resources.
convert Convert config files between different API versions
kustomize Build a kustomization target from a directory or a remote url.
Settings Commands:
label Update the labels on a resource
annotate Update the annotations on a resource
completion Output shell completion code for the specified shell (bash or zsh)
Other Commands:
alpha Commands for features in alpha
api-resources Print the supported API resources on the server
api-versions Print the supported API versions on the server, in the form of "group/version"
config Modify kubeconfig files
plugin Provides utilities for interacting with plugins.
version Print the client and server version information
Usage:
kubectl [flags] [options]
Use "kubectl <command> --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
转载*
操作的资源对象
- Node
- Podes
- Replication Controllers
- Services
- Namespace
- ComponentStatus
3. kubectl命令分类[command]
3.1 增
1）create:[Create a resource by filename or stdin]
2）run:[ Run a particular image on the cluster]
3）apply:[Apply a configuration to a resource by filename or stdin]
4）proxy:[Run a proxy to the Kubernetes API server ]
3.2 删
1）delete:[Delete resources ]
3.3 改
1）scale:[Set a new size for a Replication Controller]
2）exec:[Execute a command in a container]
3）attach:[Attach to a running container]
4）patch:[Update field(s) of a resource by stdin]
5）edit:[Edit a resource on the server]
6） label:[Update the labels on a resource]
7）annotate:[Auto-scale a replication controller]
8）replace:[Replace a resource by filename or stdin]
9）config:[config modifies kubeconfig files]
3.4 查
1）get:[Display one or many resources]
2）describe:[Show details of a specific resource or group of resources]
3）log:[Print the logs for a container in a pod]
4）cluster-info:[Display cluster info]
5） version:[Print the client and server version information]
6）api-versions:[Print the supported API versions]
