Kubernetes-kubectl命令表

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Kubernetes kubectl 命令表

1）kubectl-run创建容器镜像open in new window

语法：

run NAME --image=image [--env="key=value"] [--port=port] [--replicas=replicas] [--dry-run=bool] [--overrides=inline-json] [--command] -- [COMMAND] [args...]

示例：
启动nginx实例。

kubectl run nginx --image=nginx

启动hazelcast实例，暴露容器端口 5701。

kubectl run hazelcast --image=hazelcast --port=5701

启动hazelcast实例，在容器中设置环境变量“DNS_DOMAIN = cluster”和“POD_NAMESPACE = default”。

kubectl run hazelcast --image=hazelcast --env="DNS_DOMAIN=cluster" --env="POD_NAMESPACE=default"

启动nginx实例，设置副本数5。

kubectl run nginx --image=nginx --replicas=5

运行 Dry 打印相应的API对象而不创建它们。

kubectl run nginx --image=nginx --dry-run

其它详细说明

名称	速记	默认	用法
allow-missing-template-keys		true	If true, ignore any errors in templates when a field or map key is missing in the template. Only applies to golang and jsonpath output formats.
attach		false	If true, wait for the Pod to start running, and then attach to the Pod as if 'kubectl attach ...' were called. Default false, unless '-i/--stdin' is set, in which case the default is true. With '--restart=Never' the exit code of the container process is returned.
command		false	If true and extra arguments are present, use them as the 'command' field in the container, rather than the 'args' field which is the default.
dry-run		false	If true, only print the object that would be sent, without sending it.
env		[]	Environment variables to set in the container
expose		false	If true, a public, external service is created for the container(s) which are run
generator			The name of the API generator to use, see http://kubernetes.io/docs/user-guide/kubectl-conventions/#generatorsopen in new window for a list.
hostport		-1	The host port mapping for the container port. To demonstrate a single-machine container.
image			The image for the container to run.
image-pull-policy			The image pull policy for the container. If left empty, this value will not be specified by the client and defaulted by the server
include-extended-apis		true	If true, include definitions of new APIs via calls to the API server. [default true]
labels	l		Labels to apply to the pod(s).
leave-stdin-open		false	If the pod is started in interactive mode or with stdin, leave stdin open after the first attach completes. By default, stdin will be closed after the first attach completes.
limits			The resource requirement limits for this container. For example, 'cpu=200m,memory=512Mi'. Note that server side components may assign limits depending on the server configuration, such as limit ranges.
no-headers		false	When using the default or custom-column output format, don't print headers (default print headers).
output	o		Output format. One of: `json\|yaml\|wide\|name\|custom-columns=...\|custom-columns-file=...\|go-template=...\|go-template-file=...\|jsonpath=...\|jsonpath-file=...` See custom columns [http://kubernetes.io/docs/user-guide/kubectl-overview/#custom-columnsopen in new window], golang template [http://golang.org/pkg/text/template/#pkg-overviewopen in new window] and jsonpath template [http://kubernetes.io/docs/user-guide/jsonpathopen in new window].
output-version			DEPRECATED: To use a specific API version, fully-qualify the resource, version, and group (for example: 'jobs.v1.batch/myjob').
overrides			An inline JSON override for the generated object. If this is non-empty, it is used to override the generated object. Requires that the object supply a valid apiVersion field.
pod-running-timeout		1m0s	The length of time (like 5s, 2m, or 3h, higher than zero) to wait until at least one pod is running
port			The port that this container exposes. If --expose is true, this is also the port used by the service that is created.
quiet		false	If true, suppress prompt messages.
record		false	Record current kubectl command in the resource annotation. If set to false, do not record the command. If set to true, record the command. If not set, default to updating the existing annotation value only if one already exists.
replicas	r	1	Number of replicas to create for this container. Default is 1.
requests			The resource requirement requests for this container. For example, 'cpu=100m,memory=256Mi'. Note that server side components may assign requests depending on the server configuration, such as limit ranges.
restart		Always	The restart policy for this Pod. Legal values [Always, OnFailure, Never]. If set to 'Always' a deployment is created, if set to 'OnFailure' a job is created, if set to 'Never', a regular pod is created. For the latter two --replicas must be 1. Default 'Always', for CronJobs `Never`.
rm		false	If true, delete resources created in this command for attached containers.
save-config		false	If true, the configuration of current object will be saved in its annotation. Otherwise, the annotation will be unchanged. This flag is useful when you want to perform kubectl apply on this object in the future.
schedule			A schedule in the Cron format the job should be run with.
service-generator		service/v2	The name of the generator to use for creating a service. Only used if --expose is true
service-overrides			An inline JSON override for the generated service object. If this is non-empty, it is used to override the generated object. Requires that the object supply a valid apiVersion field. Only used if --expose is true.
show-all	a	false	When printing, show all resources (default hide terminated pods.)
show-labels		false	When printing, show all labels as the last column (default hide labels column)
sort-by			If non-empty, sort list types using this field specification. The field specification is expressed as a JSONPath expression (e.g. '{.metadata.name}'). The field in the API resource specified by this JSONPath expression must be an integer or a string.
stdin	i	false	Keep stdin open on the container(s) in the pod, even if nothing is attached.
template			Template string or path to template file to use when -o=go-template, -o=go-template-file. The template format is golang templates [http://golang.org/pkg/text/template/#pkg-overviewopen in new window].
tty	t	false	Allocated a TTY for each container in the pod.

2）kubectl-expose（将资源暴露为新的Service）open in new window

其它详细说明

3）kubectl-annotate（更新资源的Annotations信息）open in new window

其它详细说明

4）kubectl-autoscale（Pod水平自动伸缩）open in new window

其它详细说明

5）kubectl-convert（转换配置文件为不同的API版本）open in new window

其它详细说明

6）kubectl-create（创建一个集群资源对象open in new window

其它详细说明

7）kubectl-create-clusterrole（创建ClusterRole）open in new window

其它详细说明

8）kubectl-create-clusterrolebinding（为特定的ClusterRole创建ClusterRoleBinding）open in new window

其它详细说明

9）kubectl-create-configmap（创建configmap）open in new window

其它详细说明

10）kubectl-create-deployment（创建deployment）open in new window

其它详细说明

11）kubectl-create-namespace（创建namespace）open in new window

其它详细说明

12）kubectl-create-poddisruptionbudget（创建poddisruptionbudget）open in new window

其它详细说明

13）kubectl-create-quota（创建resourcequota）open in new window

其它详细说明

14）kubectl-create-role（创建role）open in new window

其它详细说明

15）kubectl-create-rolebinding（为特定Role或ClusterRole创建RoleBinding）open in new window

其它详细说明

16）kubectl-create-service（使用指定的子命令创建Service服务）open in new window

其它详细说明

17）kubectl-create-service-clusteripopen in new window

其它详细说明

18）kubectl-create-service-externalnameopen in new window

其它详细说明

19）kubectl-create-service-loadbalanceropen in new window

其它详细说明

20）kubectl-create-service-nodeportopen in new window

其它详细说明

21）kubectl-create-serviceaccountopen in new window

其它详细说明

22）kubectl-create-secret（使用指定的子命令创建secret）open in new window

其它详细说明

23）kubectl-create-secret-tlsopen in new window

其它详细说明

24）kubectl-create-secret-genericopen in new window

其它详细说明

25）kubectl-create-secret-docker-registryopen in new window

其它详细说明

26）kubectl-delete（删除资源对象）open in new window

其它详细说明

27）kubectl-edit（编辑服务器上定义的资源对象）open in new window

其它详细说明

28）kubectl-get（获取资源信息）open in new window

可以使用的资源包括：
    all
    certificatesigningrequests (aka 'csr')
    clusterrolebindings
    clusterroles
    clusters (valid only for federation apiservers)
    componentstatuses (aka 'cs')
    configmaps (aka 'cm')
    controllerrevisions
    cronjobs
    daemonsets (aka 'ds')
    deployments (aka 'deploy')
    endpoints (aka 'ep')
    events (aka 'ev')
    horizontalpodautoscalers (aka 'hpa')
    ingresses (aka 'ing')
    jobs
    limitranges (aka 'limits')
    namespaces (aka 'ns')
    networkpolicies (aka 'netpol')
    nodes (aka 'no')
    persistentvolumeclaims (aka 'pvc')
    persistentvolumes (aka 'pv')
    poddisruptionbudgets (aka 'pdb')
    podpreset
    pods (aka 'po')
    podsecuritypolicies (aka 'psp')
    podtemplates
    replicasets (aka 'rs')
    replicationcontrollers (aka 'rc')
    resourcequotas (aka 'quota')
    rolebindings
    roles
    secrets
    serviceaccounts (aka 'sa')
    services (aka 'svc')
    statefulsets
    storageclasses
    thirdpartyresources

语法

get [(-o|--output=)json|yaml|wide|custom-columns=...|custom-columns-file=...|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=...] (TYPE [NAME | -l label] | TYPE/NAME ...) [flags]

示例

列出所有运行的Pod信息。

kubectl get pods

列出Pod以及运行Pod节点信息。

kubectl get pods -o wide

列出指定NAME的 replication controller信息。

kubectl get replicationcontroller web

以JSON格式输出一个pod信息。

kubectl get -o json pod web-pod-13je7

以“pod.yaml”配置文件中指定资源对象和名称输出JSON格式的Pod信息。

kubectl get -f pod.yaml -o json

返回指定pod的相位值。

kubectl get -o template pod/web-pod-13je7 --template={{.status.phase}}

列出所有replication controllers和service信息。

kubectl get rc,services

按其资源和名称列出相应信息。

kubectl get rc/web service/frontend pods/web-pod-13je7

列出所有不同的资源对象。

kubectl get all

其它详细说明

名称	速记	默认	用法
all-namespaces		false	如果存在，则列出所有命名空间中请求的对象。即使使用 --namespace 指定，当前上下文中的命名空间也会被忽略。( k get pods --all-namespaces)
allow-missing-template-keys		true	如果为 true，则在模板中缺少字段或映射键时忽略模板中的任何错误。仅适用于 golang 和 jsonpath 输出格式。
experimental-use-openapi-print-columns		false	如果为true，则使用openapi模式中的x-kubernetes-print-column元数据（如果存在）来显示资源。
export		false	如果为 true，则对资源使用“导出”。导出的资源将删除特定于集群的信息。
filename	f	[]	文件名、目录或文件的 URL，用于标识要从服务器获取的资源。
ignore-not-found		false	将“未找到资源”视为成功检索。
include-extended-apis		true	如果为 true，则通过调用 API 服务器包含新 API 的定义。 [默认为true]
label-columns	L	[]	接受逗号分隔的标签列表，这些标签将显示为列。名称区分大小写。您还可以使用多个标志选项，例如 -L label1 -L label2.
no-headers		false	使用默认或自定义列输出格式时，不要打印标题（默认打印标题）。
output	o		输出格式。其中之一：`json\yaml\wide\name\custom-columns=...\custom-columns-file=...\go-template=...\go-template-file=...\jsonpath=）...（jsonpath-file=...` 查看自定义列 [ http://kubernetes.io/docs/user-guide/kubectl-overview/#custom-columnsopen in new window ]，golang 模板 [ http://golang.org/pkg/text/template/#pkg-overviewopen in new window ] 和 jsonpath 模板 [ http://kubernetes.io/docs/user-guide/jsonpathopen in new window ]）。
output-version			已弃用：要使用特定的 API 版本，请完全限定资源、版本和组（例如：'jobs.v1.batch/myjob'）。
raw			从服务器请求的原始 URI。使用 kubeconfig 文件指定的传输。
recursive	R	false	递归处理 -f, --filename 中使用的目录。当您想要管理在同一目录中组织的相关清单时很有用。
schema-cache-dir		~/.kube/schema	如果非空，则在此目录中加载/存储缓存的 API 模式，默认为 '$HOME/.kube/schema'
selector	l		要过滤的选择器（标签查询），支持“=”、“=”和“！=”
show-all	a	false	打印时，显示所有资源（默认隐藏终止的 pod。）
show-kind		false	如果存在，请列出所请求对象的资源类型。
show-labels		false	打印时，将所有标签显示为最后一列（默认隐藏标签列）
sort-by			如果非空，请使用此字段规范对列表类型进行排序。字段规范表示为 JSONPath 表达式（例如“{.metadata.name}”）。此 JSONPath 表达式指定的 API 资源中的字段必须是整数或字符串。
template			`-o=go-template, -o=go-template-file` 时使用的模板字符串或模板文件的路径。模板格式为 golang 模板 [ http://golang.org/pkg/text/template/#pkg-overviewopen in new window ]。
watch	w	false	列出/获取请求的对象后，注意更改。
watch-only		false	注意对请求对象的更改，而不是首先列出/获取。