1KUBERNETES(1) Jan 2015 KUBERNETES(1)
2
6 kubectl label - Update the labels on a resource
7
11 kubectl label [OPTIONS]
12
16 Update the labels on a resource.
17 0
19 item A label key and value must begin with a letter or number,
21 and may contain letters, numbers, hyphens, dots, and under‐
22 scores, up to 63 characters each. item Optionally, the key can
23 begin with a DNS subdomain prefix and a single '/', like exam‐
24 ple.com/my-app item If --overwrite is true, then existing labels
25 can be overwritten, otherwise attempting to overwrite a label
26 will result in an error. item If --resource-version is speci‐
27 fied, then updates will use this resource version, otherwise the
28 existing resource-version will be used.
29
32 --all=false
33 Select all resources, including uninitialized ones, in the names‐
34 pace of the specified resource types
35 --allow-missing-template-keys=true
38 If true, ignore any errors in templates when a field or map key is
39 missing in the template. Only applies to golang and jsonpath output
40 formats.
41 --dry-run=false
44 If true, only print the object that would be sent, without sending
45 it.
46 --field-selector=""
49 Selector (field query) to filter on, supports '=', '==', and
50 '!='.(e.g. --field-selector key1=value1,key2=value2). The server only
51 supports a limited number of field queries per type.
52 -f, --filename=[]
55 Filename, directory, or URL to files identifying the resource to
56 update the labels
57 --include-uninitialized=false
60 If true, the kubectl command applies to uninitialized objects. If
61 explicitly set to false, this flag overrides other flags that make the
62 kubectl commands apply to uninitialized objects, e.g., "--all". Objects
63 with empty metadata.initializers are regarded as initialized.
64 -k, --kustomize=""
67 Process the kustomization directory. This flag can't be used
68 together with -f or -R.
69 --list=false
72 If true, display the labels for a given resource.
73 --local=false
76 If true, label will NOT contact api-server but run locally.
77 -o, --output=""
80 Output format. One of: json|yaml|name|go-template|go-tem‐
81 plate-file|template|templatefile|jsonpath|jsonpath-file.
82 --overwrite=false
85 If true, allow labels to be overwritten, otherwise reject label
86 updates that overwrite existing labels.
87 --record=false
90 Record current kubectl command in the resource annotation. If set
91 to false, do not record the command. If set to true, record the com‐
92 mand. If not set, default to updating the existing annotation value
93 only if one already exists.
94 -R, --recursive=false
97 Process the directory used in -f, --filename recursively. Useful
98 when you want to manage related manifests organized within the same
99 directory.
100 --resource-version=""
103 If non-empty, the labels update will only succeed if this is the
104 current resource-version for the object. Only valid when specifying a
105 single resource.
106 -l, --selector=""
109 Selector (label query) to filter on, not including uninitialized
110 ones, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2).
111 --template=""
114 Template string or path to template file to use when -o=go-tem‐
115 plate, -o=go-template-file. The template format is golang templates [
116 ⟨http://golang.org/pkg/text/template/#pkg-overview⟩].
117
121 --alsologtostderr=false
122 log to standard error as well as files
123 --application-metrics-count-limit=100
126 Max number of application metrics to store (per container)
127 --as=""
130 Username to impersonate for the operation
131 --as-group=[]
134 Group to impersonate for the operation, this flag can be repeated
135 to specify multiple groups.
136 --azure-container-registry-config=""
139 Path to the file containing Azure container registry configuration
140 information.
141 --boot-id-file="/proc/sys/kernel/random/boot_id"
144 Comma-separated list of files to check for boot-id. Use the first
145 one that exists.
146 --cache-dir="/builddir/.kube/http-cache"
149 Default HTTP cache directory
150 --certificate-authority=""
153 Path to a cert file for the certificate authority
154 --client-certificate=""
157 Path to a client certificate file for TLS
158 --client-key=""
161 Path to a client key file for TLS
162 --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
165 CIDRs opened in GCE firewall for LB traffic proxy health checks
166 --cluster=""
169 The name of the kubeconfig cluster to use
170 --container-hints="/etc/cadvisor/container_hints.json"
173 location of the container hints file
174 --containerd="/run/containerd/containerd.sock"
177 containerd endpoint
178 --containerd-namespace="k8s.io"
181 containerd namespace
182 --context=""
185 The name of the kubeconfig context to use
186 --default-not-ready-toleration-seconds=300
189 Indicates the tolerationSeconds of the toleration for
190 notReady:NoExecute that is added by default to every pod that does not
191 already have such a toleration.
192 --default-unreachable-toleration-seconds=300
195 Indicates the tolerationSeconds of the toleration for unreach‐
196 able:NoExecute that is added by default to every pod that does not
197 already have such a toleration.
198 --docker="unix:///var/run/docker.sock"
201 docker endpoint
202 --docker-env-metadata-whitelist=""
205 a comma-separated list of environment variable keys that needs to
206 be collected for docker containers
207 --docker-only=false
210 Only report docker containers in addition to root stats
211 --docker-root="/var/lib/docker"
214 DEPRECATED: docker root is read from docker info (this is a fall‐
215 back, default: /var/lib/docker)
216 --docker-tls=false
219 use TLS to connect to docker
220 --docker-tls-ca="ca.pem"
223 path to trusted CA
224 --docker-tls-cert="cert.pem"
227 path to client certificate
228 --docker-tls-key="key.pem"
231 path to private key
232 --enable-load-reader=false
235 Whether to enable cpu load reader
236 --event-storage-age-limit="default=0"
239 Max length of time for which to store events (per type). Value is a
240 comma separated list of key values, where the keys are event types
241 (e.g.: creation, oom) or "default" and the value is a duration. Default
242 is applied to all non-specified event types
243 --event-storage-event-limit="default=0"
246 Max number of events to store (per type). Value is a comma sepa‐
247 rated list of key values, where the keys are event types (e.g.: cre‐
248 ation, oom) or "default" and the value is an integer. Default is
249 applied to all non-specified event types
250 --global-housekeeping-interval=1m0s
253 Interval between global housekeepings
254 --housekeeping-interval=10s
257 Interval between container housekeepings
258 --insecure-skip-tls-verify=false
261 If true, the server's certificate will not be checked for validity.
262 This will make your HTTPS connections insecure
263 --kubeconfig=""
266 Path to the kubeconfig file to use for CLI requests.
267 --log-backtrace-at=:0
270 when logging hits line file:N, emit a stack trace
271 --log-cadvisor-usage=false
274 Whether to log the usage of the cAdvisor container
275 --log-dir=""
278 If non-empty, write log files in this directory
279 --log-file=""
282 If non-empty, use this log file
283 --log-file-max-size=1800
286 Defines the maximum size a log file can grow to. Unit is megabytes.
287 If the value is 0, the maximum file size is unlimited.
288 --log-flush-frequency=5s
291 Maximum number of seconds between log flushes
292 --logtostderr=true
295 log to standard error instead of files
296 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
299 Comma-separated list of files to check for machine-id. Use the
300 first one that exists.
301 --match-server-version=false
304 Require server version to match client version
305 -n, --namespace=""
308 If present, the namespace scope for this CLI request
309 --password=""
312 Password for basic authentication to the API server
313 --profile="none"
316 Name of profile to capture. One of (none|cpu|heap|goroutine|thread‐
317 create|block|mutex)
318 --profile-output="profile.pprof"
321 Name of the file to write the profile to
322 --request-timeout="0"
325 The length of time to wait before giving up on a single server
326 request. Non-zero values should contain a corresponding time unit (e.g.
327 1s, 2m, 3h). A value of zero means don't timeout requests.
328 -s, --server=""
331 The address and port of the Kubernetes API server
332 --skip-headers=false
335 If true, avoid header prefixes in the log messages
336 --skip-log-headers=false
339 If true, avoid headers when opening log files
340 --stderrthreshold=2
343 logs at or above this threshold go to stderr
344 --storage-driver-buffer-duration=1m0s
347 Writes in the storage driver will be buffered for this duration,
348 and committed to the non memory backends as a single transaction
349 --storage-driver-db="cadvisor"
352 database name
353 --storage-driver-host="localhost:8086"
356 database host:port
357 --storage-driver-password="root"
360 database password
361 --storage-driver-secure=false
364 use secure connection with database
365 --storage-driver-table="stats"
368 table name
369 --storage-driver-user="root"
372 database username
373 --token=""
376 Bearer token for authentication to the API server
377 --update-machine-info-interval=5m0s
380 Interval between machine info updates.
381 --user=""
384 The name of the kubeconfig user to use
385 --username=""
388 Username for basic authentication to the API server
389 -v, --v=0
392 number for the log level verbosity
393 --version=false
396 Print version information and quit
397 --vmodule=
400 comma-separated list of pattern=N settings for file-filtered log‐
401 ging
402
406 # Update pod 'foo' with the label 'unhealthy' and the value 'true'.
407 kubectl label pods foo unhealthy=true
408 # Update pod 'foo' with the label 'status' and the value 'unhealthy', overwriting any existing value.
410 kubectl label --overwrite pods foo status=unhealthy
411 # Update all pods in the namespace
413 kubectl label pods --all status=unhealthy
414 # Update a pod identified by the type and name in "pod.json"
416 kubectl label -f pod.json status=unhealthy
417 # Update pod 'foo' only if the resource is unchanged from version 1.
419 kubectl label pods foo status=unhealthy --resource-version=1
420 # Update pod 'foo' by removing a label named 'bar' if it exists.
422 # Does not require the --overwrite flag.
423 kubectl label pods foo bar-
424
429 kubectl(1),
430
434 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
435 com) based on the kubernetes source material, but hopefully they have
436 been automatically generated since!
437Eric Paris kubernetes User Manuals KUBERNETES(1)