Added bash completion for several kubectl commands.

pkg/kubectl/cmd/autoscale.go

@@ -55,6 +55,9 @@ var (
 func NewCmdAutoscale(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	options := &AutoscaleOptions{}
 
+	validArgs := []string{"deployment", "replicaset", "replicationcontroller"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use:     "autoscale (-f FILENAME | TYPE NAME | TYPE/NAME) [--min=MINPODS] --max=MAXPODS [--cpu-percent=CPU] [flags]",
 		Short:   "Auto-scale a Deployment, ReplicaSet, or ReplicationController",
@@ -64,6 +67,8 @@ func NewCmdAutoscale(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 			err := RunAutoscale(f, out, cmd, args, options)
 			cmdutil.CheckErr(err)
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 	cmdutil.AddPrinterFlags(cmd)
 	cmd.Flags().String("generator", "horizontalpodautoscaler/v1", "The name of the API generator to use. Currently there is only 1 generator.")

pkg/kubectl/cmd/cmd.go

@@ -102,6 +102,11 @@ __kubectl_get_resource_rc()
     __kubectl_parse_get "rc"
 }
 
+__kubectl_get_resource_node()
+{
+    __kubectl_parse_get "node"
+}
+
 # $1 is the name of the pod we want to get the list of containers inside
 __kubectl_get_containers()
 {
@@ -134,15 +139,15 @@ __kubectl_require_pod_and_container()
 __custom_func() {
     case ${last_command} in
         kubectl_get | kubectl_describe | kubectl_delete | kubectl_label | kubectl_stop | kubectl_edit | kubectl_patch |\
-        kubectl_annotate | kubectl_expose)
+        kubectl_annotate | kubectl_expose | kubectl_scale | kubectl_autoscale | kubectl_taint | kubectl_rollout_*)
             __kubectl_get_resource
             return
             ;;
-        kubectl_logs)
+        kubectl_logs | kubectl_attach)
             __kubectl_require_pod_and_container
             return
             ;;
-        kubectl_exec)
+        kubectl_exec | kubectl_port-forward | kubectl_top_pod)
             __kubectl_get_resource_pod
             return
             ;;
@@ -150,6 +155,10 @@ __custom_func() {
             __kubectl_get_resource_rc
             return
             ;;
+        kubectl_cordon | kubectl_uncordon | kubectl_drain | kubectl_top_node)
+            __kubectl_get_resource_node
+            return
+            ;;
         *)
             ;;
     esac

pkg/kubectl/cmd/rollout/rollout_history.go

@@ -49,6 +49,9 @@ var (
 func NewCmdRolloutHistory(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	options := &HistoryOptions{}
 
+	validArgs := []string{"deployment"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use:     "history (TYPE NAME | TYPE/NAME) [flags]",
 		Short:   "View rollout history",
@@ -57,6 +60,8 @@ func NewCmdRolloutHistory(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 		Run: func(cmd *cobra.Command, args []string) {
 			cmdutil.CheckErr(RunHistory(f, cmd, out, args, options))
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 
 	cmd.Flags().Int64("revision", 0, "See the details, including podTemplate of the revision specified")

pkg/kubectl/cmd/rollout/rollout_pause.go

@@ -61,6 +61,9 @@ var (
 func NewCmdRolloutPause(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	opts := &PauseConfig{}
 
+	validArgs := []string{"deployment"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use:     "pause RESOURCE",
 		Short:   "Mark the provided resource as paused",
@@ -78,6 +81,8 @@ func NewCmdRolloutPause(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 			}
 			cmdutil.CheckErr(utilerrors.Flatten(utilerrors.NewAggregate(allErrs)))
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 
 	usage := "Filename, directory, or URL to a file identifying the resource to get from a server."

pkg/kubectl/cmd/rollout/rollout_resume.go

@@ -59,6 +59,9 @@ var (
 func NewCmdRolloutResume(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	opts := &ResumeConfig{}
 
+	validArgs := []string{"deployment"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use:     "resume RESOURCE",
 		Short:   "Resume a paused resource",
@@ -76,6 +79,8 @@ func NewCmdRolloutResume(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 			}
 			cmdutil.CheckErr(utilerrors.Flatten(utilerrors.NewAggregate(allErrs)))
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 
 	usage := "Filename, directory, or URL to a file identifying the resource to get from a server."

pkg/kubectl/cmd/rollout/rollout_status.go

@@ -47,6 +47,9 @@ var (
 func NewCmdRolloutStatus(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	options := &StatusOptions{}
 
+	validArgs := []string{"deployment"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use:     "status (TYPE NAME | TYPE/NAME) [flags]",
 		Short:   "Watch rollout status until it's done",
@@ -55,6 +58,8 @@ func NewCmdRolloutStatus(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 		Run: func(cmd *cobra.Command, args []string) {
 			cmdutil.CheckErr(RunStatus(f, cmd, out, args, options))
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 
 	usage := "Filename, directory, or URL to a file identifying the resource to get from a server."

pkg/kubectl/cmd/rollout/rollout_undo.go

@@ -58,6 +58,9 @@ var (
 func NewCmdRolloutUndo(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	opts := &UndoOptions{}
 
+	validArgs := []string{"deployment"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use:     "undo (TYPE NAME | TYPE/NAME) [flags]",
 		Short:   "Undo a previous rollout",
@@ -75,6 +78,8 @@ func NewCmdRolloutUndo(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 			}
 			cmdutil.CheckErr(utilerrors.Flatten(utilerrors.NewAggregate(allErrs)))
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 
 	cmd.Flags().Int64("to-revision", 0, "The revision to rollback to. Default to 0 (last revision).")

pkg/kubectl/cmd/scale.go

@@ -66,6 +66,9 @@ var (
 func NewCmdScale(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	options := &ScaleOptions{}
 
+	validArgs := []string{"deployment", "replicaset", "replicationcontroller", "job"}
+	argAliases := kubectl.ResourceAliases(validArgs)
+
 	cmd := &cobra.Command{
 		Use: "scale [--resource-version=version] [--current-replicas=count] --replicas=COUNT (-f FILENAME | TYPE NAME)",
 		// resize is deprecated
@@ -79,6 +82,8 @@ func NewCmdScale(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 			err := RunScale(f, out, cmd, args, shortOutput, options)
 			cmdutil.CheckErr(err)
 		},
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 	cmd.Flags().String("resource-version", "", "Precondition for resource version. Requires that the current resource version match this value in order to scale.")
 	cmd.Flags().Int("current-replicas", -1, "Precondition for current size. Requires that the current size of the resource match this value in order to scale.")

pkg/kubectl/cmd/taint.go

@@ -76,15 +76,8 @@ var (
 func NewCmdTaint(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	options := &TaintOptions{}
 
-	// retrieve a list of handled resources from printer as valid args
-	validArgs := []string{}
-	p, err := f.Printer(nil, kubectl.PrintOptions{
-		ColumnLabels: []string{},
-	})
-	cmdutil.CheckErr(err)
-	if p != nil {
-		validArgs = p.HandledResources()
-	}
+	validArgs := []string{"node"}
+	argAliases := kubectl.ResourceAliases(validArgs)
 
 	cmd := &cobra.Command{
 		Use:     "taint NODE NAME KEY_1=VAL_1:TAINT_EFFECT_1 ... KEY_N=VAL_N:TAINT_EFFECT_N",
@@ -102,7 +95,8 @@ func NewCmdTaint(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 				cmdutil.CheckErr(err)
 			}
 		},
-		ValidArgs: validArgs,
+		ValidArgs:  validArgs,
+		ArgAliases: argAliases,
 	}
 	cmdutil.AddValidateFlags(cmd)
 
@@ -288,8 +282,15 @@ func (o *TaintOptions) Complete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Co
 // Validate checks to the TaintOptions to see if there is sufficient information run the command.
 func (o TaintOptions) Validate(args []string) error {
 	resourceType := strings.ToLower(o.resources[0])
-	if resourceType != "node" && resourceType != "nodes" {
-		return fmt.Errorf("invalid resource type %s, only node(s) is supported", o.resources[0])
+	validResources, isValidResource := append(kubectl.ResourceAliases([]string{"node"}), "node"), false
+	for _, validResource := range validResources {
+		if resourceType == validResource {
+			isValidResource = true
+			break
+		}
+	}
+	if !isValidResource {
+		return fmt.Errorf("invalid resource type %s, only %q are supported", o.resources[0], validResources)
 	}
 
 	// check the format of taint args and checks removed taints aren't in the new taints list