kubectl-scale - Man Page

• Scale a replica set: kubectl scale --replicas=number_of_replicas rs/replica_name
• Scale a resource identified by a file: kubectl scale --replicas=number_of_replicas -f path/to/file.yml
• Scale a deployment based on current number of replicas: kubectl scale --current-replicas=current_replicas --replicas=number_of_replicas deployment/deployment_name

tldr.sh

kubectl scale [Options]

Set a new size for a deployment, replica set, replication controller, or stateful set.

Scale also allows users to specify one or more preconditions for the scale action.

If --current-replicas or --resource-version is specified, it is validated before the scale is attempted, and it is guaranteed that the precondition holds true when the scale is sent to the server.

--all=false Select all resources in the namespace of the specified resource types

--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.

--current-replicas=-1 Precondition for current size. Requires that the current size of the resource match this value in order to scale. -1 (default) for no condition.

--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.

-f, --filename=[] Filename, directory, or URL to files identifying the resource to set a new size

-k, --kustomize="" Process the kustomization directory. This flag can't be used together with -f or -R.

-o, --output="" Output format. One of: (json, yaml, name, go-template, go-template-file, template, templatefile, jsonpath, jsonpath-as-json, jsonpath-file).

--record=false Record current kubectl command in the resource annotation. If set to false, do not record the command. If set to true, record the command. If not set, default to updating the existing annotation value only if one already exists.

-R, --recursive=false Process the directory used in -f, --filename recursively. Useful when you want to manage related manifests organized within the same directory.

--replicas=0 The new desired number of replicas. Required.

--resource-version="" Precondition for resource version. Requires that the current resource version match this value in order to scale.

-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].

--timeout=0s The length of time to wait before giving up on a scale operation, zero means don't wait. Any other values should contain a corresponding time unit (e.g. 1s, 2m, 3h).

--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="/home/username/.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

--disable-compression=false If true, opt-out of response compression for all requests to the server

--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 --version, --version=raw prints version information and quits; --version=vX.Y.Z... sets the reported version

--warnings-as-errors=false Treat warnings received from the server as errors and exit with a non-zero exit code

  # Scale a replica set named 'foo' to 3
  kubectl scale --replicas=3 rs/foo
  
  # Scale a resource identified by type and name specified in "foo.yaml" to 3
  kubectl scale --replicas=3 -f foo.yaml
  
  # If the deployment named mysql's current size is 2, scale mysql to 3
  kubectl scale --current-replicas=2 --replicas=3 deployment/mysql
  
  # Scale multiple replication controllers
  kubectl scale --replicas=5 rc/example1 rc/example2 rc/example3
  
  # Scale stateful set named 'web' to 3
  kubectl scale --replicas=3 statefulset/web

kubectl(1),

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!

kubectl(1).