PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should
refer to the docs that go with that version.
The latest 1.0.x release of this document can be found
[here](http://releases.k8s.io/release-1.0/docs/user-guide/kubectl/kubectl_label.md).
Documentation for other releases can be found at
[releases.k8s.io](http://releases.k8s.io).
--
## kubectl label
Update the labels on a resource
### Synopsis
Update the labels on a resource.
A label must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to 63 characters.
If --overwrite is true, then existing labels can be overwritten, otherwise attempting to overwrite a label will result in an error.
If --resource-version is specified, then updates will use this resource version, otherwise the existing resource-version will be used.
```
kubectl label [--overwrite] (-f FILENAME | TYPE NAME) KEY_1=VAL_1 ... KEY_N=VAL_N [--resource-version=version]
```
### Examples
```
# Update pod 'foo' with the label 'unhealthy' and the value 'true'.
$ kubectl label pods foo unhealthy=true
# Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value.
$ kubectl label --overwrite pods foo status=unhealthy
# Update all pods in the namespace
$ kubectl label pods --all status=unhealthy
# Update a pod identified by the type and name in "pod.json"
$ kubectl label -f pod.json status=unhealthy
# Update pod 'foo' only if the resource is unchanged from version 1.
$ kubectl label pods foo status=unhealthy --resource-version=1
# Update pod 'foo' by removing a label named 'bar' if it exists.
# Does not require the --overwrite flag.
$ kubectl label pods foo bar-
```
### Options
```
--all[=false]: select all resources in the namespace of the specified resource types
-f, --filename=[]: Filename, directory, or URL to a file identifying the resource to update the labels
-h, --help[=false]: help for label
--no-headers[=false]: When using the default output, don't print headers.
-o, --output="": Output format. One of: json|yaml|template|templatefile|wide|jsonpath.
--output-version="": Output the formatted object with the given version (default api-version).
--overwrite[=false]: If true, allow labels to be overwritten, otherwise reject label updates that overwrite existing labels.
--resource-version="": If non-empty, the labels update will only succeed if this is the current resource-version for the object. Only valid when specifying a single resource.
-l, --selector="": Selector (label query) to filter on
-a, --show-all[=false]: When printing, show all resources (default hide terminated pods.)
--sort-by="": If non-empty, sort list types using this field specification. The field specification is expressed as a JSONPath expression (e.g. 'ObjectMeta.Name'). The field in the API resource specified by this JSONPath expression must be an integer or a string.
--template="": Template string or path to template file to use when -o=template, -o=templatefile or -o=jsonpath. The template format is golang templates [http://golang.org/pkg/text/template/#pkg-overview]. The jsonpath template is composed of jsonpath expressions enclosed by {} [http://releases.k8s.io/HEAD/docs/user-guide/jsonpath.md]
```
### Options inherited from parent commands
```
--alsologtostderr[=false]: log to standard error as well as files
--api-version="": The API version to use when talking to the server
--certificate-authority="": Path to a cert. file for the certificate authority.
--client-certificate="": Path to a client key file for TLS.
--client-key="": Path to a client key file for TLS.
--cluster="": The name of the kubeconfig cluster to use
--context="": The name of the kubeconfig context to use
--insecure-skip-tls-verify[=false]: If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure.
--kubeconfig="": Path to the kubeconfig file to use for CLI requests.
--log-backtrace-at=:0: when logging hits line file:N, emit a stack trace
--log-dir="": If non-empty, write log files in this directory
--log-flush-frequency=5s: Maximum number of seconds between log flushes
--logtostderr[=true]: log to standard error instead of files
--match-server-version[=false]: Require server version to match client version
--namespace="": If present, the namespace scope for this CLI request.
--password="": Password for basic authentication to the API server.
-s, --server="": The address and port of the Kubernetes API server
--stderrthreshold=2: logs at or above this threshold go to stderr
--token="": Bearer token for authentication to the API server.
--user="": The name of the kubeconfig user to use
--username="": Username for basic authentication to the API server.
--v=0: log level for V logs
--validate[=false]: If true, use a schema to validate the input before sending it
--vmodule=: comma-separated list of pattern=N settings for file-filtered logging
```
### SEE ALSO
* [kubectl](kubectl.md) - kubectl controls the Kubernetes cluster manager
###### Auto generated by spf13/cobra at 2015-08-21 17:04:52.392784742 +0000 UTC
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