Function NewCmdScale

pkg/cmd/scale/scale.go:107–139

NewCmdScale returns a cobra command with the appropriate configuration and flags to run scale

(f cmdutil.Factory, ioStreams genericiooptions.IOStreams)

// NewCmdScale returns a cobra command with the appropriate configuration and flags to run scale
func NewCmdScale(f cmdutil.Factory, ioStreams genericiooptions.IOStreams) *cobra.Command {
	o := NewScaleOptions(ioStreams)

	validArgs := []string{"deployment", "replicaset", "replicationcontroller", "statefulset"}

	cmd := &cobra.Command{
		Use:                   "scale [--resource-version=version] [--current-replicas=count] --replicas=COUNT (-f FILENAME | TYPE NAME)",
		DisableFlagsInUseLine: true,
		Short:                 i18n.T("Set a new size for a deployment, replica set, or replication controller"),
		Long:                  scaleLong,
		Example:               scaleExample,
		ValidArgsFunction:     completion.SpecifiedResourceTypeAndNameCompletionFunc(f, validArgs),
		Run: func(cmd *cobra.Command, args []string) {
			cmdutil.CheckErr(o.Complete(f, cmd, args))
			cmdutil.CheckErr(o.Validate())
			cmdutil.CheckErr(o.RunScale())
		},
	}

	o.RecordFlags.AddFlags(cmd)
	o.PrintFlags.AddFlags(cmd)

	cmd.Flags().BoolVar(&o.All, "all", o.All, "Select all resources in the namespace of the specified resource types")
	cmd.Flags().StringVar(&o.ResourceVersion, "resource-version", o.ResourceVersion, i18n.T("Precondition for resource version. Requires that the current resource version match this value in order to scale."))
	cmd.Flags().IntVar(&o.CurrentReplicas, "current-replicas", o.CurrentReplicas, "Precondition for current size. Requires that the current size of the resource match this value in order to scale. -1 (default) for no condition.")
	cmd.Flags().IntVar(&o.Replicas, "replicas", o.Replicas, "The new desired number of replicas. Required.")
	cmd.MarkFlagRequired("replicas")
	cmd.Flags().DurationVar(&o.Timeout, "timeout", 0, "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).")
	cmdutil.AddFilenameOptionFlags(cmd, &o.FilenameOptions, "identifying the resource to set a new size")
	cmdutil.AddDryRunFlag(cmd)
	cmdutil.AddLabelSelectorFlagVar(cmd, &o.Selector)
	return cmd
}

func (o *ScaleOptions) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
	var err error