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 --template="" Template string or path to template file to use when
111 -o=go-template, -o=go-template-file. The template format is golang tem‐
112 plates [http://golang.org/pkg/text/template/#pkg-overview].
113
117 --add-dir-header=false If true, adds the file directory to the
118 header of the log messages
119 --alsologtostderr=false log to standard error as well as files
122 --application-metrics-count-limit=100 Max number of application
125 metrics to store (per container)
126 --as="" Username to impersonate for the operation
129 --as-group=[] Group to impersonate for the operation, this flag
132 can be repeated to specify multiple groups.
133 --azure-container-registry-config="" Path to the file containing
136 Azure container registry configuration information.
137 --boot-id-file="/proc/sys/kernel/random/boot_id" Comma-separated
140 list of files to check for boot-id. Use the first one that exists.
141 --cache-dir="/builddir/.kube/cache" Default cache directory
144 --certificate-authority="" Path to a cert file for the certificate
147 authority
148 --client-certificate="" Path to a client certificate file for TLS
151 --client-key="" Path to a client key file for TLS
154 --cloud-provider-gce-l7lb-src-cidrs=130.211.0.0/22,35.191.0.0/16
157 CIDRs opened in GCE firewall for L7 LB traffic proxy health
158 checks
159 --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
162 CIDRs opened in GCE firewall for L4 LB traffic proxy health
163 checks
164 --cluster="" The name of the kubeconfig cluster to use
167 --container-hints="/etc/cadvisor/container_hints.json" location of
170 the container hints file
171 --containerd="/run/containerd/containerd.sock" containerd endpoint
174 --containerd-namespace="k8s.io" containerd namespace
177 --context="" The name of the kubeconfig context to use
180 --default-not-ready-toleration-seconds=300 Indicates the tolera‐
183 tionSeconds of the toleration for notReady:NoExecute that is added by
184 default to every pod that does not already have such a toleration.
185 --default-unreachable-toleration-seconds=300 Indicates the tolera‐
188 tionSeconds of the toleration for unreachable:NoExecute that is added
189 by default to every pod that does not already have such a toleration.
190 --disable-root-cgroup-stats=false Disable collecting root Cgroup
193 stats
194 --docker="unix:///var/run/docker.sock" docker endpoint
197 --docker-env-metadata-whitelist="" a comma-separated list of envi‐
200 ronment variable keys matched with specified prefix that needs to be
201 collected for docker containers
202 --docker-only=false Only report docker containers in addition to
205 root stats
206 --docker-root="/var/lib/docker" DEPRECATED: docker root is read
209 from docker info (this is a fallback, default: /var/lib/docker)
210 --docker-tls=false use TLS to connect to docker
213 --docker-tls-ca="ca.pem" path to trusted CA
216 --docker-tls-cert="cert.pem" path to client certificate
219 --docker-tls-key="key.pem" path to private key
222 --enable-load-reader=false Whether to enable cpu load reader
225 --event-storage-age-limit="default=0" Max length of time for which
228 to store events (per type). Value is a comma separated list of key val‐
229 ues, where the keys are event types (e.g.: creation, oom) or "default"
230 and the value is a duration. Default is applied to all non-specified
231 event types
232 --event-storage-event-limit="default=0" Max number of events to
235 store (per type). Value is a comma separated list of key values, where
236 the keys are event types (e.g.: creation, oom) or "default" and the
237 value is an integer. Default is applied to all non-specified event
238 types
239 --global-housekeeping-interval=1m0s Interval between global house‐
242 keepings
243 --housekeeping-interval=10s Interval between container housekeep‐
246 ings
247 --insecure-skip-tls-verify=false If true, the server's certificate
250 will not be checked for validity. This will make your HTTPS connections
251 insecure
252 --kubeconfig="" Path to the kubeconfig file to use for CLI re‐
255 quests.
256 --log-backtrace-at=:0 when logging hits line file:N, emit a stack
259 trace
260 --log-cadvisor-usage=false Whether to log the usage of the cAdvi‐
263 sor container
264 --log-dir="" If non-empty, write log files in this directory
267 --log-file="" If non-empty, use this log file
270 --log-file-max-size=1800 Defines the maximum size a log file can
273 grow to. Unit is megabytes. If the value is 0, the maximum file size is
274 unlimited.
275 --log-flush-frequency=5s Maximum number of seconds between log
278 flushes
279 --logtostderr=true log to standard error instead of files
282 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
285 Comma-separated list of files to check for machine-id. Use the
286 first one that exists.
287 --match-server-version=false Require server version to match
290 client version
291 -n, --namespace="" If present, the namespace scope for this CLI
294 request
295 --one-output=false If true, only write logs to their native sever‐
298 ity level (vs also writing to each lower severity level
299 --password="" Password for basic authentication to the API server
302 --profile="none" Name of profile to capture. One of
305 (none|cpu|heap|goroutine|threadcreate|block|mutex)
306 --profile-output="profile.pprof" Name of the file to write the
309 profile to
310 --referenced-reset-interval=0 Reset interval for referenced bytes
313 (container_referenced_bytes metric), number of measurement cycles after
314 which referenced bytes are cleared, if set to 0 referenced bytes are
315 never cleared (default: 0)
316 --request-timeout="0" The length of time to wait before giving up
319 on a single server request. Non-zero values should contain a corre‐
320 sponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't time‐
321 out requests.
322 -s, --server="" The address and port of the Kubernetes API server
325 --skip-headers=false If true, avoid header prefixes in the log
328 messages
329 --skip-log-headers=false If true, avoid headers when opening log
332 files
333 --stderrthreshold=2 logs at or above this threshold go to stderr
336 --storage-driver-buffer-duration=1m0s Writes in the storage driver
339 will be buffered for this duration, and committed to the non memory
340 backends as a single transaction
341 --storage-driver-db="cadvisor" database name
344 --storage-driver-host="localhost:8086" database host:port
347 --storage-driver-password="root" database password
350 --storage-driver-secure=false use secure connection with database
353 --storage-driver-table="stats" table name
356 --storage-driver-user="root" database username
359 --tls-server-name="" Server name to use for server certificate
362 validation. If it is not provided, the hostname used to contact the
363 server is used
364 --token="" Bearer token for authentication to the API server
367 --update-machine-info-interval=5m0s Interval between machine info
370 updates.
371 --user="" The name of the kubeconfig user to use
374 --username="" Username for basic authentication to the API server
377 -v, --v=0 number for the log level verbosity
380 --version=false Print version information and quit
383 --vmodule= comma-separated list of pattern=N settings for
386 file-filtered logging
387 --warnings-as-errors=false Treat warnings received from the server
390 as errors and exit with a non-zero exit code
391
395 # Update pod 'foo' with the label 'unhealthy' and the value 'true'.
396 kubectl label pods foo unhealthy=true
397 # Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value.
399 kubectl label --overwrite pods foo status=unhealthy
400 # Update all pods in the namespace
402 kubectl label pods --all status=unhealthy
403 # Update a pod identified by the type and name in "pod.json"
405 kubectl label -f pod.json status=unhealthy
406 # Update pod 'foo' only if the resource is unchanged from version 1.
408 kubectl label pods foo status=unhealthy --resource-version=1
409 # Update pod 'foo' by removing a label named 'bar' if it exists.
411 # Does not require the --overwrite flag.
412 kubectl label pods foo bar-
413
418 kubectl(1),
419
423 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
424 com) based on the kubernetes source material, but hopefully they have
425 been automatically generated since!
426Manuals User KUBERNETES(1)(kubernetes)