This is the multi-page printable view of this section. Click here to print.

Return to the regular view of this page.

kubectl scale

    Synopsis

    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.

    kubectl scale [--resource-version=version] [--current-replicas=count] --replicas=COUNT (-f FILENAME | TYPE NAME)

    Examples

      # 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

    Options

    --all

    Select all resources in the namespace of the specified resource types

    --allow-missing-template-keys     Default: 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 int     Default: -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 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.

    -f, --filename strings

    Filename, directory, or URL to files identifying the resource to set a new size

    -h, --help

    help for scale

    -k, --kustomize string

    Process the kustomization directory. This flag can't be used together with -f or -R.

    -o, --output string

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

    -R, --recursive

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

    --replicas int

    The new desired number of replicas. Required.

    --resource-version string

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

    -l, --selector string

    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

    If true, keep the managedFields when printing objects in JSON or YAML format.

    --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].

    --timeout duration

    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 string

    Username to impersonate for the operation. User could be a regular user or a service account in a namespace.

    --as-group strings

    Group to impersonate for the operation, this flag can be repeated to specify multiple groups.

    --as-uid string

    UID to impersonate for the operation.

    --cache-dir string     Default: "$HOME/.kube/cache"

    Default cache directory

    --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

    --cloud-provider-gce-l7lb-src-cidrs cidrs     Default: 130.211.0.0/22,35.191.0.0/16

    CIDRs opened in GCE firewall for L7 LB traffic proxy & health checks

    --cloud-provider-gce-lb-src-cidrs cidrs     Default: 130.211.0.0/22,209.85.152.0/22,209.85.204.0/22,35.191.0.0/16

    CIDRs opened in GCE firewall for L4 LB traffic proxy & health checks

    --cluster string

    The name of the kubeconfig cluster to use

    --context string

    The name of the kubeconfig context to use

    --default-not-ready-toleration-seconds int     Default: 300

    Indicates the tolerationSeconds of the toleration for notReady:NoExecute that is added by default to every pod that does not already have such a toleration.

    --default-unreachable-toleration-seconds int     Default: 300

    Indicates the tolerationSeconds of the toleration for unreachable:NoExecute that is added by default to every pod that does not already have such a toleration.

    --disable-compression

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

    --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.

    --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

    --profile string     Default: "none"

    Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex)

    --profile-output string     Default: "profile.pprof"

    Name of the file to write the profile to

    --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. 1s, 2m, 3h). A value of zero means don't timeout requests.

    -s, --server string

    The address and port of the Kubernetes API server

    --storage-driver-buffer-duration duration     Default: 1m0s

    Writes in the storage driver will be buffered for this duration, and committed to the non memory backends as a single transaction

    --storage-driver-db string     Default: "cadvisor"

    database name

    --storage-driver-host string     Default: "localhost:8086"

    database host:port

    --storage-driver-password string     Default: "root"

    database password

    --storage-driver-secure

    use secure connection with database

    --storage-driver-table string     Default: "stats"

    table name

    --storage-driver-user string     Default: "root"

    database username

    --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

    --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

    --version version[=true]

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

    --warnings-as-errors

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

    See Also

    • kubectl - kubectl controls the Kubernetes cluster manager