kubectl taint - Update the taints on one or more nodes
kubectl taint [OPTIONS]
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.
- Optionally, the key can begin with a DNS subdomain prefix and a single '/', like example.com/my-app.
- The value is optional. If given, it must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to 63 characters.
- The effect must be NoSchedule, PreferNoSchedule or NoExecute.
- Currently taint can only apply to node.
--all=false Select all nodes in the cluster
--allow-missing-template-keys=true If true, ignore any errors in templates when a field or map key is missing in the template. Only applies to golang and jsonpath output formats.
--dry-run="none" Must be "none", "server", or "client". If client strategy, only print the object that would be sent, without sending it. If server strategy, submit server-side request without persisting the resource.
--field-manager="kubectl-taint" Name of the manager used to track field ownership.
-o, --output="" Output format. One of: (json, yaml, name, go-template, go-template-file, template, templatefile, jsonpath, jsonpath-as-json, jsonpath-file).
--overwrite=false If true, allow taints to be overwritten, otherwise reject taint updates that overwrite existing taints.
-l, --selector="" Selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2). Matching objects must satisfy all of the specified label constraints.
--show-managed-fields=false If true, keep the managedFields when printing objects in JSON or YAML format.
--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="strict" Must be one of: strict (or true), warn, ignore (or false). "true" or "strict" will use a schema to validate the input and fail the request if invalid. It will perform server side validation if ServerSideFieldValidation is enabled on the api-server, but will fall back to less reliable client-side validation if not. "warn" will warn about unknown or duplicate fields without blocking the request if server-side field validation is enabled on the API server, and behave as "ignore" otherwise. "false" or "ignore" will not perform any schema validation, silently dropping any unknown or duplicate fields.
--as="" Username to impersonate for the operation. User could be a regular user or a service account in a namespace.
--as-group= Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
--as-uid="" UID to impersonate for the operation.
--azure-container-registry-config="" Path to the file containing Azure container registry configuration information.
--cache-dir="/build/.kube/cache" Default cache directory
--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.
--match-server-version=false Require server version to match client version
-n, --namespace="" If present, the namespace scope for this CLI request
--password="" Password for basic authentication to the API server
--profile="none" Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex)
--profile-output="profile.pprof" Name of the file to write the profile to
--request-timeout="0" The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests.
-s, --server="" The address and port of the Kubernetes API server
--tls-server-name="" Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used
--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
--version=false Print version information and quit
--warnings-as-errors=false Treat warnings received from the server as errors and exit with a non-zero exit code
# Update node 'foo' with a taint with key 'dedicated' and value 'special-user' and effect 'NoSchedule'
# If a taint with that key and effect already exists, its value is replaced as specified
kubectl taint nodes foo dedicated=special-user:NoSchedule
# Remove from node 'foo' the taint with key 'dedicated' and effect 'NoSchedule' if one exists
kubectl taint nodes foo dedicated:NoSchedule-
# Remove from node 'foo' all the taints with key 'dedicated'
kubectl taint nodes foo dedicated-
# Add a taint with key 'dedicated' on nodes having label mylabel=X
kubectl taint node -l myLabel=X dedicated=foo:PreferNoSchedule
# Add to node 'foo' a taint with key 'bar' and no value
kubectl taint nodes foo bar:NoSchedule
January 2015, Originally compiled by Eric Paris (eparis at redhat dot com) based on the kubernetes source material, but hopefully they have been automatically generated since!