Merge pull request #3805 from mnagy/allow_multiple_files_in_update

Use new resource builder in kubectl update

docs/kubectl.md

@@ -253,7 +253,7 @@ Usage:
       --client-key="": Path to a client key file for TLS.
       --cluster="": The name of the kubeconfig cluster to use
       --context="": The name of the kubeconfig context to use
-  -f, --filename="": Filename or URL to file to use to update the resource
+  -f, --filename=[]: Filename, directory, or URL to file to use to update the resource
   -h, --help=false: help for update
       --insecure-skip-tls-verify=false: If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure.
       --kubeconfig="": Path to the kubeconfig file to use for CLI requests.

pkg/kubectl/cmd/update.go

@@ -21,10 +21,14 @@ import (
 	"io"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/resource"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
 	"github.com/spf13/cobra"
 )
 
 func (f *Factory) NewCmdUpdate(out io.Writer) *cobra.Command {
+	flags := &struct {
+		Filenames util.StringList
+	}{}
 	cmd := &cobra.Command{
 		Use:   "update -f filename",
 		Short: "Update a resource by filename or stdin",
@@ -42,25 +46,52 @@ Examples:
   $ kubectl update pods my-pod --patch='{ "apiVersion": "v1beta1", "desiredState": { "manifest": [{ "cpu": 100 }]}}'
   <update a pod by downloading it, applying the patch, then updating, requires apiVersion be specified>`,
 		Run: func(cmd *cobra.Command, args []string) {
-			filename := GetFlagString(cmd, "filename")
+			schema, err := f.Validator(cmd)
+			checkErr(err)
+
+			cmdNamespace, err := f.DefaultNamespace(cmd)
+			checkErr(err)
+
+			mapper, typer := f.Object(cmd)
+			r := resource.NewBuilder(mapper, typer, ClientMapperForCommand(cmd, f)).
+				ContinueOnError().
+				NamespaceParam(cmdNamespace).RequireNamespace().
+				FilenameParam(flags.Filenames...).
+				Flatten().
+				Do()
+
 			patch := GetFlagString(cmd, "patch")
-			if len(filename) == 0 && len(patch) == 0 {
+			if len(flags.Filenames) == 0 && len(patch) == 0 {
 				usageError(cmd, "Must specify --filename or --patch to update")
 			}
-			if len(filename) != 0 && len(patch) != 0 {
+			if len(flags.Filenames) != 0 && len(patch) != 0 {
 				usageError(cmd, "Can not specify both --filename and --patch")
 			}
-			var name string
-			if len(filename) > 0 {
-				name = updateWithFile(cmd, f, filename)
+			if len(flags.Filenames) > 0 {
+				err := r.Visit(func(info *resource.Info) error {
+					data, err := info.Mapping.Codec.Encode(info.Object)
+					if err != nil {
+						return err
+					}
+					if err := schema.ValidateBytes(data); err != nil {
+						return err
+					}
+					if err := resource.NewHelper(info.Client, info.Mapping).
+						Update(info.Namespace, info.Name, true, data); err != nil {
+						return err
+					}
+					fmt.Fprintf(out, "%s\n", info.Name)
+					return nil
+				})
+				checkErr(err)
 			} else {
-				name = updateWithPatch(cmd, args, f, patch)
+				name := updateWithPatch(cmd, args, f, patch)
+				fmt.Fprintf(out, "%s\n", name)
 			}
 
-			fmt.Fprintf(out, "%s\n", name)
 		},
 	}
-	cmd.Flags().StringP("filename", "f", "", "Filename or URL to file to use to update the resource")
+	cmd.Flags().VarP(&flags.Filenames, "filename", "f", "Filename, directory, or URL to file to use to update the resource")
 	cmd.Flags().String("patch", "", "A JSON document to override the existing resource.  The resource is downloaded, then patched with the JSON, the updated")
 	return cmd
 }
@@ -87,28 +118,3 @@ func updateWithPatch(cmd *cobra.Command, args []string, f *Factory, patch string
 	checkErr(err)
 	return name
 }
-
-func updateWithFile(cmd *cobra.Command, f *Factory, filename string) string {
-	schema, err := f.Validator(cmd)
-	checkErr(err)
-	mapper, typer := f.Object(cmd)
-
-	clientConfig, err := f.ClientConfig(cmd)
-	checkErr(err)
-	cmdApiVersion := clientConfig.Version
-
-	mapping, namespace, name, data := ResourceFromFile(filename, typer, mapper, schema, cmdApiVersion)
-
-	client, err := f.RESTClient(cmd, mapping)
-	checkErr(err)
-
-	cmdNamespace, err := f.DefaultNamespace(cmd)
-	checkErr(err)
-	err = CompareNamespace(cmdNamespace, namespace)
-	checkErr(err)
-
-	err = resource.NewHelper(client, mapping).Update(namespace, name, true, data)
-	checkErr(err)
-
-	return name
-}

pkg/kubectl/cmd/update_test.go

@@ -0,0 +1,145 @@
+/*
+Copyright 2015 Google Inc. All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cmd_test
+
+import (
+	"bytes"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
+)
+
+func rcTestData() *api.ReplicationControllerList {
+	rc := &api.ReplicationControllerList{
+		ListMeta: api.ListMeta{
+			ResourceVersion: "17",
+		},
+		Items: []api.ReplicationController{
+			{
+				ObjectMeta: api.ObjectMeta{Name: "qux", Namespace: "test", ResourceVersion: "13"},
+			},
+		},
+	}
+	return rc
+}
+
+func TestUpdateObject(t *testing.T) {
+	pods, _ := testData()
+
+	f, tf, codec := NewAPIFactory()
+	tf.Printer = &testPrinter{}
+	tf.Client = &client.FakeRESTClient{
+		Codec: codec,
+		Client: client.HTTPClientFunc(func(req *http.Request) (*http.Response, error) {
+			switch p, m := req.URL.Path, req.Method; {
+			case p == "/ns/test/pods/redis-master" && m == "GET":
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &pods.Items[0])}, nil
+			case p == "/ns/test/pods/redis-master" && m == "PUT":
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &pods.Items[0])}, nil
+			default:
+				t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
+				return nil, nil
+			}
+		}),
+	}
+	tf.Namespace = "test"
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := f.NewCmdUpdate(buf)
+	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master.json")
+	cmd.Run(cmd, []string{})
+
+	// uses the name from the file, not the response
+	if buf.String() != "redis-master\n" {
+		t.Errorf("unexpected output: %s", buf.String())
+	}
+}
+
+func TestUpdateMultipleObject(t *testing.T) {
+	pods, svc := testData()
+
+	f, tf, codec := NewAPIFactory()
+	tf.Printer = &testPrinter{}
+	tf.Client = &client.FakeRESTClient{
+		Codec: codec,
+		Client: client.HTTPClientFunc(func(req *http.Request) (*http.Response, error) {
+			switch p, m := req.URL.Path, req.Method; {
+			case p == "/ns/test/pods/redis-master" && m == "GET":
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &pods.Items[0])}, nil
+			case p == "/ns/test/pods/redis-master" && m == "PUT":
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &pods.Items[0])}, nil
+
+			case p == "/ns/test/services/frontend" && m == "GET":
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &svc.Items[0])}, nil
+			case p == "/ns/test/services/frontend" && m == "PUT":
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &svc.Items[0])}, nil
+			default:
+				t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
+				return nil, nil
+			}
+		}),
+	}
+	tf.Namespace = "test"
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := f.NewCmdUpdate(buf)
+	cmd.Flags().Set("filename", "../../../examples/guestbook/redis-master.json")
+	cmd.Flags().Set("filename", "../../../examples/guestbook/frontend-service.json")
+	cmd.Run(cmd, []string{})
+
+	if buf.String() != "redis-master\nfrontend\n" {
+		t.Errorf("unexpected output: %s", buf.String())
+	}
+}
+
+func TestUpdateDirectory(t *testing.T) {
+	pods, svc := testData()
+	rc := rcTestData()
+
+	f, tf, codec := NewAPIFactory()
+	tf.Printer = &testPrinter{}
+	tf.Client = &client.FakeRESTClient{
+		Codec: codec,
+		Client: client.HTTPClientFunc(func(req *http.Request) (*http.Response, error) {
+			switch p, m := req.URL.Path, req.Method; {
+			case strings.HasPrefix(p, "/ns/test/pods/") && (m == "GET" || m == "PUT"):
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &pods.Items[0])}, nil
+			case strings.HasPrefix(p, "/ns/test/services/") && (m == "GET" || m == "PUT"):
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &svc.Items[0])}, nil
+			case strings.HasPrefix(p, "/ns/test/replicationcontrollers/") && (m == "GET" || m == "PUT"):
+				return &http.Response{StatusCode: 200, Body: objBody(codec, &rc.Items[0])}, nil
+			default:
+				t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
+				return nil, nil
+			}
+		}),
+	}
+	tf.Namespace = "test"
+	buf := bytes.NewBuffer([]byte{})
+
+	cmd := f.NewCmdUpdate(buf)
+	cmd.Flags().Set("filename", "../../../examples/guestbook")
+	cmd.Flags().Set("namespace", "test")
+	cmd.Run(cmd, []string{})
+
+	if buf.String() != "frontend-controller\nfrontend\nredis-master\nredis-master\nredis-slave-controller\nredisslave\n" {
+		t.Errorf("unexpected output: %s", buf.String())
+	}
+}