func NewCmdRollingUpdate(f *cmdutil.Factory, out io.Writer) *cobra.Command {
options := &RollingUpdateOptions{}
cmd := &cobra.Command{
Use: "rolling-update OLD_CONTROLLER_NAME ([NEW_CONTROLLER_NAME] --image=NEW_CONTAINER_IMAGE | -f NEW_CONTROLLER_SPEC)",
// rollingupdate is deprecated.
Aliases: []string{"rollingupdate"},
Short: "Perform a rolling update of the given ReplicationController.",
Long: rollingUpdate_long,
Example: rollingUpdate_example,
Run: func(cmd *cobra.Command, args []string) {
err := RunRollingUpdate(f, out, cmd, args, options)
cmdutil.CheckErr(err)
},
}
cmd.Flags().Duration("update-period", updatePeriod, `Time to wait between updating pods. Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".`)
cmd.Flags().Duration("poll-interval", pollInterval, `Time delay between polling for replication controller status after the update. Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".`)
cmd.Flags().Duration("timeout", timeout, `Max time to wait for a replication controller to update before giving up. Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".`)
usage := "Filename or URL to file to use to create the new replication controller."
kubectl.AddJsonFilenameFlag(cmd, &options.Filenames, usage)
cmd.MarkFlagRequired("filename")
cmd.Flags().String("image", "", "Image to use for upgrading the replication controller. Must be distinct from the existing image (either new image or new image tag). Can not be used with --filename/-f")
cmd.MarkFlagRequired("image")
cmd.Flags().String("deployment-label-key", "deployment", "The key to use to differentiate between two different controllers, default 'deployment'. Only relevant when --image is specified, ignored otherwise")
cmd.Flags().Bool("dry-run", false, "If true, print out the changes that would be made, but don't actually make them.")
cmd.Flags().Bool("rollback", false, "If true, this is a request to abort an existing rollout that is partially rolled out. It effectively reverses current and next and runs a rollout")
cmdutil.AddValidateFlags(cmd)
cmdutil.AddPrinterFlags(cmd)
return cmd
}
func NewCmdLabel(f *cmdutil.Factory, out io.Writer) *cobra.Command {
options := &LabelOptions{}
// retrieve a list of handled resources from printer as valid args
validArgs := []string{}
p, err := f.Printer(nil, false, false, false, false, []string{})
cmdutil.CheckErr(err)
if p != nil {
validArgs = p.HandledResources()
}
cmd := &cobra.Command{
Use: "label [--overwrite] (-f FILENAME | TYPE NAME) KEY_1=VAL_1 ... KEY_N=VAL_N [--resource-version=version]",
Short: "Update the labels on a resource",
Long: fmt.Sprintf(label_long, validation.LabelValueMaxLength),
Example: label_example,
Run: func(cmd *cobra.Command, args []string) {
err := RunLabel(f, out, cmd, args, options)
cmdutil.CheckErr(err)
},
ValidArgs: validArgs,
}
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().Bool("overwrite", false, "If true, allow labels to be overwritten, otherwise reject label updates that overwrite existing labels.")
cmd.Flags().StringP("selector", "l", "", "Selector (label query) to filter on")
cmd.Flags().Bool("all", false, "select all resources in the namespace of the specified resource types")
cmd.Flags().String("resource-version", "", "If non-empty, the labels update will only succeed if this is the current resource-version for the object. Only valid when specifying a single resource.")
usage := "Filename, directory, or URL to a file identifying the resource to update the labels"
kubectl.AddJsonFilenameFlag(cmd, &options.Filenames, usage)
cmd.Flags().Bool("dry-run", false, "If true, only print the object that would be sent, without sending it.")
return cmd
}
// NewCmdGet creates a command object for the generic "get" action, which
// retrieves one or more resources from a server.
func NewCmdGet(f *cmdutil.Factory, out io.Writer) *cobra.Command {
options := &GetOptions{}
// retrieve a list of handled resources from printer as valid args
validArgs := []string{}
p, err := f.Printer(nil, false, false, false, false, []string{})
cmdutil.CheckErr(err)
if p != nil {
validArgs = p.HandledResources()
}
cmd := &cobra.Command{
Use: "get [(-o|--output=)json|yaml|wide|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=...] (TYPE [NAME | -l label] | TYPE/NAME ...) [flags]",
Short: "Display one or many resources",
Long: get_long,
Example: get_example,
Run: func(cmd *cobra.Command, args []string) {
err := RunGet(f, out, cmd, args, options)
cmdutil.CheckErr(err)
},
ValidArgs: validArgs,
}
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().StringP("selector", "l", "", "Selector (label query) to filter on")
cmd.Flags().BoolP("watch", "w", false, "After listing/getting the requested object, watch for changes.")
cmd.Flags().Bool("watch-only", false, "Watch for changes to the requested object(s), without listing/getting first.")
cmd.Flags().Bool("all-namespaces", false, "If present, list the requested object(s) across all namespaces. Namespace in current context is ignored even if specified with --namespace.")
cmd.Flags().StringSliceP("label-columns", "L", []string{}, "Accepts a comma separated list of labels that are going to be presented as columns. Names are case-sensitive. You can also use multiple flag statements like -L label1 -L label2...")
usage := "Filename, directory, or URL to a file identifying the resource to get from a server."
kubectl.AddJsonFilenameFlag(cmd, &options.Filenames, usage)
return cmd
}
// NewCmdConvert creates a command object for the generic "convert" action, which
// translates the config file into a given version.
func NewCmdConvert(f *cmdutil.Factory, out io.Writer) *cobra.Command {
options := &ConvertOptions{}
cmd := &cobra.Command{
Use: "convert -f FILENAME",
Short: "Convert config files between different API versions",
Long: convert_long,
Example: convert_example,
Run: func(cmd *cobra.Command, args []string) {
err := options.Complete(f, out, cmd, args)
cmdutil.CheckErr(err)
err = options.RunConvert()
cmdutil.CheckErr(err)
},
}
usage := "Filename, directory, or URL to file to need to get converted."
kubectl.AddJsonFilenameFlag(cmd, &options.filenames, usage)
cmd.MarkFlagRequired("filename")
cmdutil.AddValidateFlags(cmd)
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().BoolVar(&options.local, "local", true, "If true, convert will NOT try to contact api-server but run locally.")
return cmd
}
func NewCmdRun(f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer) *cobra.Command {
cmd := &cobra.Command{
Use: "run NAME --image=image [--env=\"key=value\"] [--port=port] [--replicas=replicas] [--dry-run=bool] [--overrides=inline-json]",
// run-container is deprecated
Aliases: []string{"run-container"},
Short: "Run a particular image on the cluster.",
Long: run_long,
Example: run_example,
Run: func(cmd *cobra.Command, args []string) {
err := Run(f, cmdIn, cmdOut, cmdErr, cmd, args)
cmdutil.CheckErr(err)
},
}
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().String("generator", "", "The name of the API generator to use. Default is 'run/v1' if --restart=Always, otherwise the default is 'run-pod/v1'.")
cmd.Flags().String("image", "", "The image for the container to run.")
cmd.MarkFlagRequired("image")
cmd.Flags().IntP("replicas", "r", 1, "Number of replicas to create for this container. Default is 1.")
cmd.Flags().Bool("dry-run", false, "If true, only print the object that would be sent, without sending it.")
cmd.Flags().String("overrides", "", "An inline JSON override for the generated object. If this is non-empty, it is used to override the generated object. Requires that the object supply a valid apiVersion field.")
cmd.Flags().StringSlice("env", []string{}, "Environment variables to set in the container")
cmd.Flags().Int("port", -1, "The port that this container exposes.")
cmd.Flags().Int("hostport", -1, "The host port mapping for the container port. To demonstrate a single-machine container.")
cmd.Flags().StringP("labels", "l", "", "Labels to apply to the pod(s).")
cmd.Flags().BoolP("stdin", "i", false, "Keep stdin open on the container(s) in the pod, even if nothing is attached.")
cmd.Flags().Bool("tty", false, "Allocated a TTY for each container in the pod. Because -t is currently shorthand for --template, -t is not supported for --tty. This shorthand is deprecated and we expect to adopt -t for --tty soon.")
cmd.Flags().Bool("attach", false, "If true, wait for the Pod to start running, and then attach to the Pod as if 'kubectl attach ...' were called. Default false, unless '-i/--interactive' is set, in which case the default is true.")
cmd.Flags().Bool("leave-stdin-open", false, "If the pod is started in interactive mode or with stdin, leave stdin open after the first attach completes. By default, stdin will be closed after the first attach completes.")
cmd.Flags().String("restart", "Always", "The restart policy for this Pod. Legal values [Always, OnFailure, Never]. If set to 'Always' a replication controller is created for this pod, if set to OnFailure or Never, only the Pod is created and --replicas must be 1. Default 'Always'")
cmd.Flags().Bool("command", false, "If true and extra arguments are present, use them as the 'command' field in the container, rather than the 'args' field which is the default.")
cmd.Flags().String("requests", "", "The resource requirement requests for this container. For example, 'cpu=100m,memory=256Mi'")
cmd.Flags().String("limits", "", "The resource requirement limits for this container. For example, 'cpu=200m,memory=512Mi'")
return cmd
}
func NewCmdRun(f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer) *cobra.Command {
cmd := &cobra.Command{
Use: "run NAME --image=image [--env=\"key=value\"] [--port=port] [--replicas=replicas] [--dry-run=bool] [--overrides=inline-json]",
// run-container is deprecated
Aliases: []string{"run-container"},
Short: "Run a particular image on the cluster.",
Long: run_long,
Example: run_example,
Run: func(cmd *cobra.Command, args []string) {
err := Run(f, cmdIn, cmdOut, cmdErr, cmd, args)
cmdutil.CheckErr(err)
},
}
cmdutil.AddPrinterFlags(cmd)
addRunFlags(cmd)
return cmd
}
// TODO: support autoscale for deployments
func NewCmdAutoscale(f *cmdutil.Factory, out io.Writer) *cobra.Command {
filenames := []string{}
cmd := &cobra.Command{
Use: "autoscale (-f FILENAME | TYPE NAME | TYPE/NAME) [--min=MINPODS] --max=MAXPODS [--cpu-percent=CPU] [flags]",
Short: "Auto-scale a replication controller",
Long: autoscaleLong,
Example: autoscaleExample,
Run: func(cmd *cobra.Command, args []string) {
err := RunAutoscale(f, out, cmd, args, filenames)
cmdutil.CheckErr(err)
},
}
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().String("generator", "horizontalpodautoscaler/v1beta1", "The name of the API generator to use. Currently there is only 1 generator.")
cmd.Flags().Int("min", -1, "The lower limit for the number of pods that can be set by the autoscaler. If it's not specified or negative, the server will apply a default value.")
cmd.Flags().Int("max", -1, "The upper limit for the number of pods that can be set by the autoscaler. Required.")
cmd.MarkFlagRequired("max")
cmd.Flags().Int("cpu-percent", -1, fmt.Sprintf("The target average CPU utilization (represented as a percent of requested CPU) over all the pods. If it's not specified or negative, the server will apply a default value."))
cmd.Flags().String("name", "", "The name for the newly created object. If not specified, the name of the input resource will be used.")
cmd.Flags().Bool("dry-run", false, "If true, only print the object that would be sent, without creating it.")
usage := "Filename, directory, or URL to a file identifying the resource to get from a server."
kubectl.AddJsonFilenameFlag(cmd, &filenames, usage)
return cmd
}
func NewCmdExposeService(f *cmdutil.Factory, out io.Writer) *cobra.Command {
options := &ExposeOptions{}
cmd := &cobra.Command{
Use: "expose (-f FILENAME | TYPE NAME) [--port=port] [--protocol=TCP|UDP] [--target-port=number-or-name] [--name=name] [----external-ip=external-ip-of-service] [--type=type]",
Short: "Take a replication controller, service or pod and expose it as a new Kubernetes Service",
Long: expose_long,
Example: expose_example,
Run: func(cmd *cobra.Command, args []string) {
err := RunExpose(f, out, cmd, args, options)
cmdutil.CheckErr(err)
},
}
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().String("generator", "service/v2", "The name of the API generator to use. There are 2 generators: 'service/v1' and 'service/v2'. The only difference between them is that service port in v1 is named 'default', while it is left unnamed in v2. Default is 'service/v2'.")
cmd.Flags().String("protocol", "TCP", "The network protocol for the service to be created. Default is 'tcp'.")
cmd.Flags().Int("port", -1, "The port that the service should serve on. Copied from the resource being exposed, if unspecified")
cmd.Flags().String("type", "", "Type for this service: ClusterIP, NodePort, or LoadBalancer. Default is 'ClusterIP'.")
// TODO: remove create-external-load-balancer in code on or after Aug 25, 2016.
cmd.Flags().Bool("create-external-load-balancer", false, "If true, create an external load balancer for this service (trumped by --type). Implementation is cloud provider dependent. Default is 'false'.")
cmd.Flags().MarkDeprecated("create-external-load-balancer", "use --type=\"LoadBalancer\" instead")
cmd.Flags().String("load-balancer-ip", "", "IP to assign to to the Load Balancer. If empty, an ephemeral IP will be created and used(cloud-provider specific).")
cmd.Flags().String("selector", "", "A label selector to use for this service. If empty (the default) infer the selector from the replication controller.")
cmd.Flags().StringP("labels", "l", "", "Labels to apply to the service created by this call.")
cmd.Flags().Bool("dry-run", false, "If true, only print the object that would be sent, without creating it.")
cmd.Flags().String("container-port", "", "Synonym for --target-port")
cmd.Flags().String("target-port", "", "Name or number for the port on the container that the service should direct traffic to. Optional.")
cmd.Flags().String("external-ip", "", "External IP address to set for the service. The service can be accessed by this IP in addition to its generated service IP.")
cmd.Flags().String("overrides", "", "An inline JSON override for the generated object. If this is non-empty, it is used to override the generated object. Requires that the object supply a valid apiVersion field.")
cmd.Flags().String("name", "", "The name for the newly created object.")
cmd.Flags().String("session-affinity", "", "If non-empty, set the session affinity for the service to this; legal values: 'None', 'ClientIP'")
usage := "Filename, directory, or URL to a file identifying the resource to expose a service"
kubectl.AddJsonFilenameFlag(cmd, &options.Filenames, usage)
return cmd
}
func NewCmdConfigView(out io.Writer, ConfigAccess ConfigAccess) *cobra.Command {
options := &ViewOptions{ConfigAccess: ConfigAccess}
cmd := &cobra.Command{
Use: "view",
Short: "Displays merged kubeconfig settings or a specified kubeconfig file.",
Long: view_long,
Example: view_example,
Run: func(cmd *cobra.Command, args []string) {
options.Complete()
printer, _, err := cmdutil.PrinterForCommand(cmd)
if err != nil {
glog.FatalDepth(1, err)
}
version := cmdutil.OutputVersion(cmd, latest.Version)
printer = kubectl.NewVersionedPrinter(printer, clientcmdapi.Scheme, version)
if err := options.Run(out, printer); err != nil {
glog.FatalDepth(1, err)
}
},
}
cmdutil.AddPrinterFlags(cmd)
// Default to yaml
cmd.Flags().Set("output", "yaml")
options.Merge.Default(true)
cmd.Flags().Var(&options.Merge, "merge", "merge together the full hierarchy of kubeconfig files")
cmd.Flags().BoolVar(&options.RawByteData, "raw", false, "display raw byte data")
cmd.Flags().BoolVar(&options.Flatten, "flatten", false, "flatten the resulting kubeconfig file into self contained output (useful for creating portable kubeconfig files)")
cmd.Flags().BoolVar(&options.Minify, "minify", false, "remove all information not used by current-context from the output")
return cmd
}
