man kubectl label (1): Update the labels on a resource

SYNOPSIS

kubectl label [OPTIONS]

DESCRIPTION

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.

OPTIONS

--all=false
select all resources in the namespace of the specified resource types

--dry-run=false
If true, only print the object that would be sent, without sending it.

-f, --filename=[]
Filename, directory, or URL to a file identifying the resource to update the labels

--no-headers=false
When using the default output, don't print headers.

--output-version=""
Output the formatted object with the given group version (for ex: 'extensions/v1beta1').

--overwrite=false
If true, allow labels to be overwritten, otherwise reject label updates that overwrite existing labels.

--record=false
Record current kubectl command in the resource annotation.

--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.)

--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.

--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-overview>].

OPTIONS INHERITED FROM PARENT COMMANDS

--alsologtostderr=false
log to standard error as well as files

--api-version=""
DEPRECATED: 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 certificate 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, --v=0
log level for V logs

--vmodule=
comma-separated list of pattern=N settings for file-filtered logging

EXAMPLE

# 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-

HISTORY

January 2015, Originally compiled by Eric Paris (eparis at redhat dot com) based on the kubernetes source material, but hopefully they have been automatically generated since!