website/docs/user-guide/kubectl/kubectl_taint.md

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 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-

Options

      --all                       select all nodes in the cluster
      --no-headers                When using the default or custom-column output format, don't print headers.
  -o, --output string             Output format. One of: json|yaml|wide|name|custom-columns=...|custom-columns-file=...|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=... See custom columns [http://kubernetes.io/docs/user-guide/kubectl-overview/#custom-columns], golang template [http://golang.org/pkg/text/template/#pkg-overview] and jsonpath template [http://kubernetes.io/docs/user-guide/jsonpath].
      --output-version string     Output the formatted object with the given group version (for ex: 'extensions/v1beta1').
      --overwrite                 If true, allow taints to be overwritten, otherwise reject taint updates that overwrite existing taints.
      --schema-cache-dir string   If non-empty, load/store cached API schemas in this directory, default is '$HOME/.kube/schema' (default "~/.kube/schema")
  -l, --selector string           Selector (label query) to filter on
  -a, --show-all                  When printing, show all resources (default hide terminated pods.)
      --show-labels               When printing, show all labels as the last column (default hide labels column)
      --sort-by string            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 string           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                  If true, use a schema to validate the input before sending it (default true)

Options inherited from parent commands

      --alsologtostderr                  log to standard error as well as files
      --as string                        Username to impersonate for the operation
      --certificate-authority string     Path to a cert. file for the certificate authority
      --client-certificate string        Path to a client certificate file for TLS
      --client-key string                Path to a client key file for TLS
      --cluster string                   The name of the kubeconfig cluster to use
      --context string                   The name of the kubeconfig context to use
      --insecure-skip-tls-verify         If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
      --kubeconfig string                Path to the kubeconfig file to use for CLI requests.
      --log-backtrace-at traceLocation   when logging hits line file:N, emit a stack trace (default :0)
      --log-dir string                   If non-empty, write log files in this directory
      --logtostderr                      log to standard error instead of files
      --match-server-version             Require server version to match client version
  -n, --namespace string                 If present, the namespace scope for this CLI request
      --password string                  Password for basic authentication to the API server
      --request-timeout string           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. (default "0")
  -s, --server string                    The address and port of the Kubernetes API server
      --stderrthreshold severity         logs at or above this threshold go to stderr (default 2)
      --token string                     Bearer token for authentication to the API server
      --user string                      The name of the kubeconfig user to use
      --username string                  Username for basic authentication to the API server
  -v, --v Level                          log level for V logs
      --vmodule moduleSpec               comma-separated list of pattern=N settings for file-filtered logging

Auto generated by spf13/cobra on 13-Dec-2016