1KUBERNETES(1) Jan 2015 KUBERNETES(1)
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6 kubectl taint - Update the taints on one or more nodes
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11 kubectl taint [OPTIONS]
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16 Update the taints on one or more nodes.
17 0
19 item A taint consists of a key, value, and effect. As an argu‐
21 ment here, it is expressed as key=value:effect.
22 item The key must begin with a letter or number, and may contain
23 letters, numbers, hyphens, dots, and underscores, up to 253
24 characters.
25 item Optionally, the key can begin with a DNS subdomain prefix
26 and a single '/', like example.com/my-app
27 item The value must begin with a letter or number, and may con‐
28 tain letters, numbers, hyphens, dots, and underscores, up to 63
29 characters.
30 item The effect must be NoSchedule, PreferNoSchedule or NoExe‐
31 cute.
32 item Currently taint can only apply to node.
33
36 --all=false
37 Select all nodes in the cluster
38 --allow-missing-template-keys=true
41 If true, ignore any errors in templates when a field or map key is
42 missing in the template. Only applies to golang and jsonpath output
43 formats.
44 -o, --output=""
47 Output format. One of: json|yaml|name|templatefile|template|go-tem‐
48 plate|go-template-file|jsonpath|jsonpath-file.
49 --overwrite=false
52 If true, allow taints to be overwritten, otherwise reject taint
53 updates that overwrite existing taints.
54 -l, --selector=""
57 Selector (label query) to filter on, supports '=', '==', and
58 '!='.(e.g. -l key1=value1,key2=value2)
59 --template=""
62 Template string or path to template file to use when -o=go-tem‐
63 plate, -o=go-template-file. The template format is golang templates [
64 ⟨http://golang.org/pkg/text/template/#pkg-overview⟩].
65 --validate=true
68 If true, use a schema to validate the input before sending it
69
73 --allow-verification-with-non-compliant-keys=false
74 Allow a SignatureVerifier to use keys which are technically
75 non-compliant with RFC6962.
76 --alsologtostderr=false
79 log to standard error as well as files
80 --application-metrics-count-limit=100
83 Max number of application metrics to store (per container)
84 --as=""
87 Username to impersonate for the operation
88 --as-group=[]
91 Group to impersonate for the operation, this flag can be repeated
92 to specify multiple groups.
93 --azure-container-registry-config=""
96 Path to the file containing Azure container registry configuration
97 information.
98 --boot-id-file="/proc/sys/kernel/random/boot_id"
101 Comma-separated list of files to check for boot-id. Use the first
102 one that exists.
103 --cache-dir="/builddir/.kube/http-cache"
106 Default HTTP cache directory
107 --certificate-authority=""
110 Path to a cert file for the certificate authority
111 --client-certificate=""
114 Path to a client certificate file for TLS
115 --client-key=""
118 Path to a client key file for TLS
119 --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
122 CIDRs opened in GCE firewall for LB traffic proxy health checks
123 --cluster=""
126 The name of the kubeconfig cluster to use
127 --container-hints="/etc/cadvisor/container_hints.json"
130 location of the container hints file
131 --containerd="unix:///var/run/containerd.sock"
134 containerd endpoint
135 --context=""
138 The name of the kubeconfig context to use
139 --default-not-ready-toleration-seconds=300
142 Indicates the tolerationSeconds of the toleration for
143 notReady:NoExecute that is added by default to every pod that does not
144 already have such a toleration.
145 --default-unreachable-toleration-seconds=300
148 Indicates the tolerationSeconds of the toleration for unreach‐
149 able:NoExecute that is added by default to every pod that does not
150 already have such a toleration.
151 --docker="unix:///var/run/docker.sock"
154 docker endpoint
155 --docker-env-metadata-whitelist=""
158 a comma-separated list of environment variable keys that needs to
159 be collected for docker containers
160 --docker-only=false
163 Only report docker containers in addition to root stats
164 --docker-root="/var/lib/docker"
167 DEPRECATED: docker root is read from docker info (this is a fall‐
168 back, default: /var/lib/docker)
169 --docker-tls=false
172 use TLS to connect to docker
173 --docker-tls-ca="ca.pem"
176 path to trusted CA
177 --docker-tls-cert="cert.pem"
180 path to client certificate
181 --docker-tls-key="key.pem"
184 path to private key
185 --enable-load-reader=false
188 Whether to enable cpu load reader
189 --event-storage-age-limit="default=0"
192 Max length of time for which to store events (per type). Value is a
193 comma separated list of key values, where the keys are event types
194 (e.g.: creation, oom) or "default" and the value is a duration. Default
195 is applied to all non-specified event types
196 --event-storage-event-limit="default=0"
199 Max number of events to store (per type). Value is a comma sepa‐
200 rated list of key values, where the keys are event types (e.g.: cre‐
201 ation, oom) or "default" and the value is an integer. Default is
202 applied to all non-specified event types
203 --global-housekeeping-interval=1m0s
206 Interval between global housekeepings
207 --google-json-key=""
210 The Google Cloud Platform Service Account JSON Key to use for
211 authentication.
212 --housekeeping-interval=10s
215 Interval between container housekeepings
216 --insecure-skip-tls-verify=false
219 If true, the server's certificate will not be checked for validity.
220 This will make your HTTPS connections insecure
221 --kubeconfig=""
224 Path to the kubeconfig file to use for CLI requests.
225 --log-backtrace-at=:0
228 when logging hits line file:N, emit a stack trace
229 --log-cadvisor-usage=false
232 Whether to log the usage of the cAdvisor container
233 --log-dir=""
236 If non-empty, write log files in this directory
237 --log-flush-frequency=5s
240 Maximum number of seconds between log flushes
241 --logtostderr=true
244 log to standard error instead of files
245 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
248 Comma-separated list of files to check for machine-id. Use the
249 first one that exists.
250 --match-server-version=false
253 Require server version to match client version
254 --mesos-agent="127.0.0.1:5051"
257 Mesos agent address
258 --mesos-agent-timeout=10s
261 Mesos agent timeout
262 -n, --namespace=""
265 If present, the namespace scope for this CLI request
266 --request-timeout="0"
269 The length of time to wait before giving up on a single server
270 request. Non-zero values should contain a corresponding time unit (e.g.
271 1s, 2m, 3h). A value of zero means don't timeout requests.
272 -s, --server=""
275 The address and port of the Kubernetes API server
276 --stderrthreshold=2
279 logs at or above this threshold go to stderr
280 --storage-driver-buffer-duration=1m0s
283 Writes in the storage driver will be buffered for this duration,
284 and committed to the non memory backends as a single transaction
285 --storage-driver-db="cadvisor"
288 database name
289 --storage-driver-host="localhost:8086"
292 database host:port
293 --storage-driver-password="root"
296 database password
297 --storage-driver-secure=false
300 use secure connection with database
301 --storage-driver-table="stats"
304 table name
305 --storage-driver-user="root"
308 database username
309 --token=""
312 Bearer token for authentication to the API server
313 --user=""
316 The name of the kubeconfig user to use
317 -v, --v=0
320 log level for V logs
321 --version=false
324 Print version information and quit
325 --vmodule=
328 comma-separated list of pattern=N settings for file-filtered log‐
329 ging
330
334 # Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule'.
335 # If a taint with that key and effect already exists, its value is replaced as specified.
336 kubectl taint nodes foo dedicated=special-user:NoSchedule
337 # Remove from node 'foo' the taint with key 'dedicated' and effect 'NoSchedule' if one exists.
339 kubectl taint nodes foo dedicated:NoSchedule-
340 # Remove from node 'foo' all the taints with key 'dedicated'
342 kubectl taint nodes foo dedicated-
343 # Add a taint with key 'dedicated' on nodes having label mylabel=X
345 kubectl taint node -l myLabel=X dedicated=foo:PreferNoSchedule
346
351 kubectl(1),
352
356 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
357 com) based on the kubernetes source material, but hopefully they have
358 been automatically generated since!
359Eric Paris kubernetes User Manuals KUBERNETES(1)