PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should
refer to the docs that go with that version.
Documentation for other releases can be found at
[releases.k8s.io](http://releases.k8s.io).
--
## kubectl taint
Update the taints on one or more nodes
### Synopsis
Update the taints on one or more nodes.
A taint consists of a key, value, and effect. As an argument here, it is expressed as key=value:effect.
The key must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to 253 characters.
The value must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to 253 characters.
The effect must be NoSchedule or PreferNoSchedule.
Currently taint can only apply to node.
```
kubectl taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N
```
### Examples
```
# Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule'.
# If a taint with that key already exists, its value and effect are replaced as specified.
kubectl taint nodes foo dedicated=special-user:NoSchedule
# Remove from node 'foo' the taint with key 'dedicated' if one exists.
kubectl taint nodes foo dedicated-
```
### Options
```
--all[=false]: select all nodes in the cluster
--include-extended-apis[=true]: If true, include definitions of new APIs via calls to the API server. [default true]
--no-headers[=false]: When using the default output, don't print headers.
-o, --output="": Output format. One of: json|yaml|wide|name|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=... See golang template [http://golang.org/pkg/text/template/#pkg-overview] and jsonpath template [http://releases.k8s.io/HEAD/docs/user-guide/jsonpath.md].
--output-version="": Output the formatted object with the given group version (for ex: 'extensions/v1beta1').
--overwrite[=false]: If true, allow taints to be overwritten, otherwise reject taint updates that overwrite existing taints.
--schema-cache-dir="~/.kube/schema": If non-empty, load/store cached API schemas in this directory, default is '$HOME/.kube/schema'
-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].
--validate[=true]: If true, use a schema to validate the input before sending it
```
### Options inherited from parent commands
```
--alsologtostderr[=false]: log to standard error as well as files
--as="": Username to impersonate for the operation.
--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=0: log level for V logs
--vmodule=: comma-separated list of pattern=N settings for file-filtered logging
```
### SEE ALSO
* [kubectl](kubectl.md) - kubectl controls the Kubernetes cluster manager
###### Auto generated by spf13/cobra on 17-May-2016
[]()