Make delete actually stop resources by default.

Refactor for shared code.

Author: brendandburns

contrib/completions/bash/kubectl

@@ -343,6 +343,7 @@ _kubectl_delete()
     flags_completion=()
 
     flags+=("--all")
+    flags+=("--cascade")
     flags+=("--filename=")
     flags_with_completion+=("--filename")
     flags_completion+=("_filedir '@(json|yaml|yml)'")

docs/kubectl.md

@@ -66,4 +66,4 @@ kubectl
 * [kubectl update](kubectl_update.md)	 - Update a resource by filename or stdin.
 * [kubectl version](kubectl_version.md)	 - Print the client and server version information.
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.529528989 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.18016485 +0000 UTC

docs/kubectl_api-versions.md

@@ -50,4 +50,4 @@ kubectl api-versions
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.529124749 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.179420324 +0000 UTC

docs/kubectl_cluster-info.md

@@ -50,4 +50,4 @@ kubectl cluster-info
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.528967691 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.179075262 +0000 UTC

docs/kubectl_config.md

@@ -63,4 +63,4 @@ kubectl config SUBCOMMAND
 * [kubectl config use-context](kubectl_config_use-context.md)	 - Sets the current-context in a kubeconfig file
 * [kubectl config view](kubectl_config_view.md)	 - displays Merged kubeconfig settings or a specified kubeconfig file.
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.528802509 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.178743093 +0000 UTC

docs/kubectl_config_set-cluster.md

@@ -65,4 +65,4 @@ $ kubectl config set-cluster e2e --insecure-skip-tls-verify=true
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.527769365 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.176632377 +0000 UTC

docs/kubectl_config_set-context.md

@@ -58,4 +58,4 @@ $ kubectl config set-context gce --user=cluster-admin
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.528131768 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.177351504 +0000 UTC

docs/kubectl_config_set-credentials.md

@@ -78,4 +78,4 @@ $ kubectl set-credentials cluster-admin --client-certificate=~/.kube/admin.crt -
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.527942873 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.176997115 +0000 UTC

docs/kubectl_config_set.md

@@ -52,4 +52,4 @@ kubectl config set PROPERTY_NAME PROPERTY_VALUE
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.528303344 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.177697607 +0000 UTC

docs/kubectl_config_unset.md

@@ -51,4 +51,4 @@ kubectl config unset PROPERTY_NAME
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.528464868 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.178014311 +0000 UTC

docs/kubectl_config_use-context.md

@@ -50,4 +50,4 @@ kubectl config use-context CONTEXT_NAME
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.528626589 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.178387488 +0000 UTC

docs/kubectl_config_view.md

@@ -73,4 +73,4 @@ $ kubectl config view -o template --template='{{range .users}}{{ if eq .name "e2
 ### SEE ALSO
 * [kubectl config](kubectl_config.md)	 - config modifies kubeconfig files
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.527582988 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.176300117 +0000 UTC

docs/kubectl_create.md

@@ -63,4 +63,4 @@ $ cat pod.json | kubectl create -f -
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.52422236 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.169347287 +0000 UTC

docs/kubectl_delete.md

@@ -43,6 +43,7 @@ $ kubectl delete pods --all
 
 ```
       --all=false: [-all] to select all the specified resources
+      --cascade=true: If true, cascade the delete resources managed by this resource (e.g. Pods created by a ReplicationController).  Default true.
   -f, --filename=[]: Filename, directory, or URL to a file containing the resource to delete
   -h, --help=false: help for delete
   -l, --selector="": Selector (label query) to filter on
@@ -81,4 +82,4 @@ $ kubectl delete pods --all
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.524590507 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.170113984 +0000 UTC

docs/kubectl_describe.md

@@ -63,4 +63,4 @@ $ kubectl describe pods/nginx
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.524047164 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.168905946 +0000 UTC

docs/kubectl_exec.md

@@ -64,4 +64,4 @@ $ kubectl exec -p 123456-7890 -c ruby-container -i -t -- bash -il
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.52551618 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.173193785 +0000 UTC

docs/kubectl_expose.md

@@ -82,4 +82,4 @@ $ kubectl expose streamer --port=4100 --protocol=udp --service-name=video-stream
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.527149074 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.175492324 +0000 UTC

docs/kubectl_get.md

@@ -85,4 +85,4 @@ $ kubectl get rc/web service/frontend pods/web-pod-13je7
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.523839103 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.168465048 +0000 UTC

docs/kubectl_label.md

@@ -81,4 +81,4 @@ $ kubectl label pods foo bar-
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.527386643 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.175924183 +0000 UTC

docs/kubectl_log.md

@@ -62,4 +62,4 @@ $ kubectl log -f 123456-7890 ruby-container
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.524938744 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.170843937 +0000 UTC

docs/kubectl_namespace.md

@@ -53,4 +53,4 @@ kubectl namespace [namespace]
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.524751287 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.170473143 +0000 UTC

docs/kubectl_port-forward.md

@@ -68,4 +68,4 @@ $ kubectl port-forward -p mypod 0:5000
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.525691097 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.173592919 +0000 UTC

docs/kubectl_proxy.md

@@ -65,4 +65,4 @@ $ kubectl proxy --api-prefix=k8s-api
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.525864716 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.173961813 +0000 UTC

docs/kubectl_resize.md

@@ -68,4 +68,4 @@ $ kubectl resize --current-replicas=2 --replicas=3 replicationcontrollers foo
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.52532658 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.171613369 +0000 UTC

docs/kubectl_rolling-update.md

@@ -83,4 +83,4 @@ $ kubectl rolling-update frontend --image=image:v2
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:44:36.84341428 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 21:28:37.951011185 +0000 UTC

docs/kubectl_run-container.md

@@ -78,4 +78,4 @@ $ kubectl run-container nginx --image=nginx --overrides='{ "apiVersion": "v1beta
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.526080215 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.174507457 +0000 UTC

docs/kubectl_stop.md

@@ -72,4 +72,4 @@ $ kubectl stop -f path/to/resources
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.526923863 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.174999749 +0000 UTC

docs/kubectl_update.md

@@ -67,4 +67,4 @@ $ kubectl update pods my-pod --patch='{ "apiVersion": "v1beta1", "desiredState":
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.52440746 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.16972972 +0000 UTC

docs/kubectl_version.md

@@ -51,4 +51,4 @@ kubectl version
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-04-27 22:01:46.529297188 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-04-28 03:34:57.179736961 +0000 UTC

docs/man/man1/kubectl-delete.1

@@ -33,6 +33,10 @@ will be lost along with the rest of the resource.
 \fB\-\-all\fP=false
     [\-all] to select all the specified resources
 
+.PP
+\fB\-\-cascade\fP=true
+    If true, cascade the delete resources managed by this resource (e.g. Pods created by a ReplicationController).  Default true.
+
 .PP
 \fB\-f\fP, \fB\-\-filename\fP=[]
     Filename, directory, or URL to a file containing the resource to delete

pkg/kubectl/cmd/delete.go

@@ -72,6 +72,7 @@ func NewCmdDelete(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	kubectl.AddJsonFilenameFlag(cmd, &filenames, usage)
 	cmd.Flags().StringP("selector", "l", "", "Selector (label query) to filter on")
 	cmd.Flags().Bool("all", false, "[-all] to select all the specified resources")
+	cmd.Flags().Bool("cascade", true, "If true, cascade the delete resources managed by this resource (e.g. Pods created by a ReplicationController).  Default true.")
 	return cmd
 }
 
@@ -95,20 +96,59 @@ func RunDelete(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []str
 		return err
 	}
 
+	// By default use a reaper to delete all related resources.
+	if cmdutil.GetFlagBool(cmd, "cascade") {
+		return ReapResult(r, f, out, cmdutil.GetFlagBool(cmd, "cascade"))
+	}
+	return DeleteResult(r, out)
+}
+
+func ReapResult(r *resource.Result, f *cmdutil.Factory, out io.Writer, isDefaultDelete bool) error {
 	found := 0
-	err = r.IgnoreErrors(errors.IsNotFound).Visit(func(r *resource.Info) error {
+	err := r.IgnoreErrors(errors.IsNotFound).Visit(func(info *resource.Info) error {
 		found++
-		if err := resource.NewHelper(r.Client, r.Mapping).Delete(r.Namespace, r.Name); err != nil {
+		reaper, err := f.Reaper(info.Mapping)
+		if err != nil {
+			// If the error is "not found" and the user didn't explicitly ask for stop.
+			if kubectl.IsNoSuchReaperError(err) && isDefaultDelete {
+				return deleteResource(info, out)
+			}
 			return err
 		}
-		fmt.Fprintf(out, "%s/%s\n", r.Mapping.Resource, r.Name)
+		if _, err := reaper.Stop(info.Namespace, info.Name); err != nil {
+			return err
+		}
+		fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
 		return nil
 	})
 	if err != nil {
 		return err
 	}
 	if found == 0 {
-		fmt.Fprintf(cmd.Out(), "No resources found\n")
+		fmt.Fprintf(out, "No resources found\n")
+	}
+	return nil
+}
+
+func DeleteResult(r *resource.Result, out io.Writer) error {
+	found := 0
+	err := r.IgnoreErrors(errors.IsNotFound).Visit(func(info *resource.Info) error {
+		found++
+		return deleteResource(info, out)
+	})
+	if err != nil {
+		return err
+	}
+	if found == 0 {
+		fmt.Fprintf(out, "No resources found\n")
+	}
+	return nil
+}
+
+func deleteResource(info *resource.Info, out io.Writer) error {
+	if err := resource.NewHelper(info.Client, info.Mapping).Delete(info.Namespace, info.Name); err != nil {
+		return err
 	}
+	fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
 	return nil
 }

pkg/kubectl/cmd/delete_test.go

@@ -50,6 +50,7 @@ func TestDeleteObjectByTuple(t *testing.T) {
 
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("namespace", "test")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{"replicationcontrollers/redis-master-controller"})
 
 	if buf.String() != "replicationControllers/redis-master-controller\n" {
@@ -80,6 +81,7 @@ func TestDeleteNamedObject(t *testing.T) {
 
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("namespace", "test")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{"replicationcontrollers", "redis-master-controller"})
 
 	if buf.String() != "replicationControllers/redis-master-controller\n" {
@@ -109,6 +111,7 @@ func TestDeleteObject(t *testing.T) {
 
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master-controller.json")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{})
 
 	// uses the name from the file, not the response
@@ -137,6 +140,7 @@ func TestDeleteObjectIgnoreNotFound(t *testing.T) {
 
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master-controller.json")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{})
 
 	if buf.String() != "" {
@@ -169,6 +173,7 @@ func TestDeleteMultipleObject(t *testing.T) {
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master-controller.json")
 	cmd.Flags().Set("filename", "../../../examples/guestbook/frontend-service.json")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{})
 
 	if buf.String() != "replicationcontrollers/redis-master\nservices/frontend\n" {
@@ -201,6 +206,7 @@ func TestDeleteMultipleObjectIgnoreMissing(t *testing.T) {
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master-controller.json")
 	cmd.Flags().Set("filename", "../../../examples/guestbook/frontend-service.json")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{})
 
 	if buf.String() != "services/frontend\n" {
@@ -232,6 +238,7 @@ func TestDeleteDirectory(t *testing.T) {
 
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("filename", "../../../examples/guestbook")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{})
 
 	if buf.String() != "replicationcontrollers/frontend\nservices/frontend\nreplicationcontrollers/redis-master\nservices/redis-master\nreplicationcontrollers/redis-slave\nservices/redis-slave\n" {
@@ -273,6 +280,7 @@ func TestDeleteMultipleSelector(t *testing.T) {
 
 	cmd := NewCmdDelete(f, buf)
 	cmd.Flags().Set("selector", "a=b")
+	cmd.Flags().Set("cascade", "false")
 	cmd.Run(cmd, []string{"pods,services"})
 
 	if buf.String() != "pods/foo\npods/bar\nservices/baz\n" {

pkg/kubectl/cmd/stop.go

@@ -17,7 +17,6 @@ limitations under the License.
 package cmd
 
 import (
-	"fmt"
 	"io"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
@@ -55,29 +54,7 @@ func NewCmdStop(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 		Long:    stop_long,
 		Example: stop_example,
 		Run: func(cmd *cobra.Command, args []string) {
-			cmdNamespace, err := f.DefaultNamespace()
-			cmdutil.CheckErr(err)
-			mapper, typer := f.Object()
-			r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
-				ContinueOnError().
-				NamespaceParam(cmdNamespace).RequireNamespace().
-				ResourceTypeOrNameArgs(false, args...).
-				FilenameParam(flags.Filenames...).
-				SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
-				SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
-				Flatten().
-				Do()
-			cmdutil.CheckErr(r.Err())
-
-			r.Visit(func(info *resource.Info) error {
-				reaper, err := f.Reaper(info.Mapping)
-				cmdutil.CheckErr(err)
-				if _, err := reaper.Stop(info.Namespace, info.Name); err != nil {
-					return err
-				}
-				fmt.Fprintf(out, "%s/%s\n", info.Mapping.Resource, info.Name)
-				return nil
-			})
+			cmdutil.CheckErr(RunStop(f, cmd, args, flags.Filenames, out))
 		},
 	}
 	usage := "Filename, directory, or URL to file of resource(s) to be stopped"
@@ -86,3 +63,24 @@ func NewCmdStop(f *cmdutil.Factory, out io.Writer) *cobra.Command {
 	cmd.Flags().Bool("all", false, "[-all] to select all the specified resources")
 	return cmd
 }
+
+func RunStop(f *cmdutil.Factory, cmd *cobra.Command, args []string, filenames util.StringList, out io.Writer) error {
+	cmdNamespace, err := f.DefaultNamespace()
+	if err != nil {
+		return err
+	}
+	mapper, typer := f.Object()
+	r := resource.NewBuilder(mapper, typer, f.ClientMapperForCommand()).
+		ContinueOnError().
+		NamespaceParam(cmdNamespace).RequireNamespace().
+		ResourceTypeOrNameArgs(false, args...).
+		FilenameParam(filenames...).
+		SelectorParam(cmdutil.GetFlagString(cmd, "selector")).
+		SelectAllParam(cmdutil.GetFlagBool(cmd, "all")).
+		Flatten().
+		Do()
+	if r.Err() != nil {
+		return r.Err()
+	}
+	return ReapResult(r, f, out, false)
+}