Update fields of a resource using strategic merge patch, a JSON merge patch, or a JSON patch.
JSON and YAML formats are accepted.
Syntax
werf kubectl patch (-f FILENAME | TYPE NAME) [-p PATCH|--patch-file FILE] [options]
Examples
# Partially update a node using a strategic merge patch, specifying the patch as JSON
kubectl patch node k8s-node-1 -p '{"spec":{"unschedulable":true}}'
# Partially update a node using a strategic merge patch, specifying the patch as YAML
kubectl patch node k8s-node-1 -p $'spec:\n unschedulable: true'
# Partially update a node identified by the type and name specified in "node.json" using strategic merge patch
kubectl patch -f node.json -p '{"spec":{"unschedulable":true}}'
# Update a container's image; spec.containers[*].name is required because it's a merge key
kubectl patch pod valid-pod -p '{"spec":{"containers":[{"name":"kubernetes-serve-hostname","image":"new image"}]}}'
# Update a container's image using a JSON patch with positional arrays
kubectl patch pod valid-pod --type='json' -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"new image"}]'
# Update a deployment's replicas through the 'scale' subresource using a merge patch
kubectl patch deployment nginx-deployment --subresource='scale' --type='merge' -p '{"spec":{"replicas":2}}'
Options
--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-patch'
Name of the manager used to track field ownership.
-f, --filename=[]
Filename, directory, or URL to files identifying the resource to update
-k, --kustomize=''
Process the kustomization directory. This flag can`t be used together with -f or -R.
--local=false
If true, patch will operate on the content of the file, not the server-side resource.
-o, --output=''
Output format. One of: (json, yaml, name, go-template, go-template-file, template,
templatefile, jsonpath, jsonpath-as-json, jsonpath-file).
-p, --patch=''
The patch to be applied to the resource JSON file.
--patch-file=''
A file containing a patch to be applied to the resource.
-R, --recursive=false
Process the directory used in -f, --filename recursively. Useful when you want to
manage related manifests organized within the same directory.
--show-managed-fields=false
If true, keep the managedFields when printing objects in JSON or YAML format.
--subresource=''
If specified, patch will operate on the subresource of the requested object. Must be
one of [status scale]. This flag is beta and may change in the future.
--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].
--type='strategic'
The type of patch being provided; one of [json merge strategic]
Options inherited from parent commands
--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.
--cache-dir='~/.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 (default $WERF_KUBE_CONTEXT)
--disable-compression=false
If true, opt-out of response compression for all requests to the server
--home-dir=''
Use specified dir to store werf cache files and dirs (default $WERF_HOME or ~/.werf)
--insecure-skip-tls-verify=false
If true, the server`s certificate will not be checked for validity. This will make your
HTTPS connections insecure (default $WERF_SKIP_TLS_VERIFY_REGISTRY)
--kube-config-base64=''
Kubernetes config data as base64 string (default $WERF_KUBE_CONFIG_BASE64 or
$WERF_KUBECONFIG_BASE64 or $KUBECONFIG_BASE64)
--kubeconfig=''
Path to the kubeconfig file to use for CLI requests (default $WERF_KUBE_CONFIG, or
$WERF_KUBECONFIG, or $KUBECONFIG). Ignored if kubeconfig passed as base64.
--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
--tmp-dir=''
Use specified dir to store tmp files and dirs (default $WERF_TMP_DIR or system tmp dir)
--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
--warnings-as-errors=false
Treat warnings received from the server as errors and exit with a non-zero exit code