1KUBERNETES(1)(kubernetes) KUBERNETES(1)(kubernetes)
2Eric Paris Jan 2015
6
9 kubectl label - Update the labels on a resource
10
14 kubectl label [OPTIONS]
15
19 Update the labels on a resource.
20 • A label key and value must begin with a letter or number, and
23 may contain letters, numbers, hyphens, dots, and underscores,
24 up to 63 characters each.
25 • Optionally, the key can begin with a DNS subdomain prefix and
27 a single '/', like example.com/my-app
28 • If --overwrite is true, then existing labels can be overwrit‐
30 ten, otherwise attempting to overwrite a label will result in
31 an error.
32 • If --resource-version is specified, then updates will use this
34 resource version, otherwise the existing resource-version will
35 be used.
36
41 --all=false Select all resources, including uninitialized ones, in
42 the namespace of the specified resource types
43 --allow-missing-template-keys=true If true, ignore any errors in
46 templates when a field or map key is missing in the template. Only ap‐
47 plies to golang and jsonpath output formats.
48 --dry-run="none" Must be "none", "server", or "client". If client
51 strategy, only print the object that would be sent, without sending it.
52 If server strategy, submit server-side request without persisting the
53 resource.
54 --field-manager="kubectl-label" Name of the manager used to track
57 field ownership.
58 --field-selector="" Selector (field query) to filter on, supports
61 '=', '==', and '!='.(e.g. --field-selector key1=value1,key2=value2).
62 The server only supports a limited number of field queries per type.
63 -f, --filename=[] Filename, directory, or URL to files identifying
66 the resource to update the labels
67 -k, --kustomize="" Process the kustomization directory. This flag
70 can't be used together with -f or -R.
71 --list=false If true, display the labels for a given resource.
74 --local=false If true, label will NOT contact api-server but run
77 locally.
78 -o, --output="" Output format. One of: json|yaml|name|go-tem‐
81 plate|go-template-file|template|templatefile|jsonpath|json‐
82 path-as-json|jsonpath-file.
83 --overwrite=false If true, allow labels to be overwritten, other‐
86 wise reject label updates that overwrite existing labels.
87 --record=false Record current kubectl command in the resource an‐
90 notation. If set to false, do not record the command. If set to true,
91 record the command. If not set, default to updating the existing anno‐
92 tation value only if one already exists.
93 -R, --recursive=false Process the directory used in -f, --filename
96 recursively. Useful when you want to manage related manifests organized
97 within the same directory.
98 --resource-version="" If non-empty, the labels update will only
101 succeed if this is the current resource-version for the object. Only
102 valid when specifying a single resource.
103 -l, --selector="" Selector (label query) to filter on, not includ‐
106 ing uninitialized ones, supports '=', '==', and '!='.(e.g. -l
107 key1=value1,key2=value2).
108 --show-managed-fields=false If true, keep the managedFields when
111 printing objects in JSON or YAML format.
112 --template="" Template string or path to template file to use when
115 -o=go-template, -o=go-template-file. The template format is golang tem‐
116 plates [http://golang.org/pkg/text/template/#pkg-overview].
117
121 --add-dir-header=false If true, adds the file directory to the
122 header of the log messages
123 --alsologtostderr=false log to standard error as well as files
126 --application-metrics-count-limit=100 Max number of application
129 metrics to store (per container)
130 --as="" Username to impersonate for the operation
133 --as-group=[] Group to impersonate for the operation, this flag
136 can be repeated to specify multiple groups.
137 --azure-container-registry-config="" Path to the file containing
140 Azure container registry configuration information.
141 --boot-id-file="/proc/sys/kernel/random/boot_id" Comma-separated
144 list of files to check for boot-id. Use the first one that exists.
145 --cache-dir="/builddir/.kube/cache" Default cache directory
148 --certificate-authority="" Path to a cert file for the certificate
151 authority
152 --client-certificate="" Path to a client certificate file for TLS
155 --client-key="" Path to a client key file for TLS
158 --cloud-provider-gce-l7lb-src-cidrs=130.211.0.0/22,35.191.0.0/16
161 CIDRs opened in GCE firewall for L7 LB traffic proxy health
162 checks
163 --cloud-provider-gce-lb-src-cidrs=130.211.0.0/22,209.85.152.0/22,209.85.204.0/22,35.191.0.0/16
166 CIDRs opened in GCE firewall for L4 LB traffic proxy health
167 checks
168 --cluster="" The name of the kubeconfig cluster to use
171 --container-hints="/etc/cadvisor/container_hints.json" location of
174 the container hints file
175 --containerd="/run/containerd/containerd.sock" containerd endpoint
178 --containerd-namespace="k8s.io" containerd namespace
181 --context="" The name of the kubeconfig context to use
184 --default-not-ready-toleration-seconds=300 Indicates the tolera‐
187 tionSeconds of the toleration for notReady:NoExecute that is added by
188 default to every pod that does not already have such a toleration.
189 --default-unreachable-toleration-seconds=300 Indicates the tolera‐
192 tionSeconds of the toleration for unreachable:NoExecute that is added
193 by default to every pod that does not already have such a toleration.
194 --disable-root-cgroup-stats=false Disable collecting root Cgroup
197 stats
198 --docker="unix:///var/run/docker.sock" docker endpoint
201 --docker-env-metadata-whitelist="" a comma-separated list of envi‐
204 ronment variable keys matched with specified prefix that needs to be
205 collected for docker containers
206 --docker-only=false Only report docker containers in addition to
209 root stats
210 --docker-root="/var/lib/docker" DEPRECATED: docker root is read
213 from docker info (this is a fallback, default: /var/lib/docker)
214 --docker-tls=false use TLS to connect to docker
217 --docker-tls-ca="ca.pem" path to trusted CA
220 --docker-tls-cert="cert.pem" path to client certificate
223 --docker-tls-key="key.pem" path to private key
226 --enable-load-reader=false Whether to enable cpu load reader
229 --event-storage-age-limit="default=0" Max length of time for which
232 to store events (per type). Value is a comma separated list of key val‐
233 ues, where the keys are event types (e.g.: creation, oom) or "default"
234 and the value is a duration. Default is applied to all non-specified
235 event types
236 --event-storage-event-limit="default=0" Max number of events to
239 store (per type). Value is a comma separated list of key values, where
240 the keys are event types (e.g.: creation, oom) or "default" and the
241 value is an integer. Default is applied to all non-specified event
242 types
243 --global-housekeeping-interval=1m0s Interval between global house‐
246 keepings
247 --housekeeping-interval=10s Interval between container housekeep‐
250 ings
251 --insecure-skip-tls-verify=false If true, the server's certificate
254 will not be checked for validity. This will make your HTTPS connections
255 insecure
256 --kubeconfig="" Path to the kubeconfig file to use for CLI re‐
259 quests.
260 --log-backtrace-at=:0 when logging hits line file:N, emit a stack
263 trace
264 --log-cadvisor-usage=false Whether to log the usage of the cAdvi‐
267 sor container
268 --log-dir="" If non-empty, write log files in this directory
271 --log-file="" If non-empty, use this log file
274 --log-file-max-size=1800 Defines the maximum size a log file can
277 grow to. Unit is megabytes. If the value is 0, the maximum file size is
278 unlimited.
279 --log-flush-frequency=5s Maximum number of seconds between log
282 flushes
283 --logtostderr=true log to standard error instead of files
286 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
289 Comma-separated list of files to check for machine-id. Use the
290 first one that exists.
291 --match-server-version=false Require server version to match
294 client version
295 -n, --namespace="" If present, the namespace scope for this CLI
298 request
299 --one-output=false If true, only write logs to their native sever‐
302 ity level (vs also writing to each lower severity level)
303 --password="" Password for basic authentication to the API server
306 --profile="none" Name of profile to capture. One of
309 (none|cpu|heap|goroutine|threadcreate|block|mutex)
310 --profile-output="profile.pprof" Name of the file to write the
313 profile to
314 --referenced-reset-interval=0 Reset interval for referenced bytes
317 (container_referenced_bytes metric), number of measurement cycles after
318 which referenced bytes are cleared, if set to 0 referenced bytes are
319 never cleared (default: 0)
320 --request-timeout="0" The length of time to wait before giving up
323 on a single server request. Non-zero values should contain a corre‐
324 sponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't time‐
325 out requests.
326 -s, --server="" The address and port of the Kubernetes API server
329 --skip-headers=false If true, avoid header prefixes in the log
332 messages
333 --skip-log-headers=false If true, avoid headers when opening log
336 files
337 --stderrthreshold=2 logs at or above this threshold go to stderr
340 --storage-driver-buffer-duration=1m0s Writes in the storage driver
343 will be buffered for this duration, and committed to the non memory
344 backends as a single transaction
345 --storage-driver-db="cadvisor" database name
348 --storage-driver-host="localhost:8086" database host:port
351 --storage-driver-password="root" database password
354 --storage-driver-secure=false use secure connection with database
357 --storage-driver-table="stats" table name
360 --storage-driver-user="root" database username
363 --tls-server-name="" Server name to use for server certificate
366 validation. If it is not provided, the hostname used to contact the
367 server is used
368 --token="" Bearer token for authentication to the API server
371 --update-machine-info-interval=5m0s Interval between machine info
374 updates.
375 --user="" The name of the kubeconfig user to use
378 --username="" Username for basic authentication to the API server
381 -v, --v=0 number for the log level verbosity
384 --version=false Print version information and quit
387 --vmodule= comma-separated list of pattern=N settings for
390 file-filtered logging
391 --warnings-as-errors=false Treat warnings received from the server
394 as errors and exit with a non-zero exit code
395
399 # Update pod 'foo' with the label 'unhealthy' and the value 'true'.
400 kubectl label pods foo unhealthy=true
401 # Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value.
403 kubectl label --overwrite pods foo status=unhealthy
404 # Update all pods in the namespace
406 kubectl label pods --all status=unhealthy
407 # Update a pod identified by the type and name in "pod.json"
409 kubectl label -f pod.json status=unhealthy
410 # Update pod 'foo' only if the resource is unchanged from version 1.
412 kubectl label pods foo status=unhealthy --resource-version=1
413 # Update pod 'foo' by removing a label named 'bar' if it exists.
415 # Does not require the --overwrite flag.
416 kubectl label pods foo bar-
417
422 kubectl(1),
423
427 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
428 com) based on the kubernetes source material, but hopefully they have
429 been automatically generated since!
430Manuals User KUBERNETES(1)(kubernetes)