Move all create subcommands to its own subdirectory

pkg/kubectl/cmd/create/create_deployment.go

@@ -0,0 +1,149 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+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 create
+
+import (
+	"io"
+
+	"github.com/spf13/cobra"
+
+	"k8s.io/kubernetes/pkg/kubectl"
+	"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/kubectl/util/i18n"
+)
+
+var (
+	deploymentLong = templates.LongDesc(i18n.T(`
+	Create a deployment with the specified name.`))
+
+	deploymentExample = templates.Examples(i18n.T(`
+	# Create a new deployment named my-dep that runs the busybox image.
+	kubectl create deployment my-dep --image=busybox`))
+)
+
+// NewCmdCreateDeployment is a macro command to create a new deployment.
+// This command is better known to users as `kubectl create deployment`.
+// Note that this command overlaps significantly with the `kubectl run` command.
+func NewCmdCreateDeployment(f cmdutil.Factory, cmdOut, cmdErr io.Writer) *cobra.Command {
+	cmd := &cobra.Command{
+		Use: "deployment NAME --image=image [--dry-run]",
+		DisableFlagsInUseLine: true,
+		Aliases:               []string{"deploy"},
+		Short:                 i18n.T("Create a deployment with the specified name."),
+		Long:                  deploymentLong,
+		Example:               deploymentExample,
+		Run: func(cmd *cobra.Command, args []string) {
+			err := createDeployment(f, cmdOut, cmdErr, cmd, args)
+			cmdutil.CheckErr(err)
+		},
+	}
+	cmdutil.AddApplyAnnotationFlags(cmd)
+	cmdutil.AddValidateFlags(cmd)
+	cmdutil.AddPrinterFlags(cmd)
+	cmdutil.AddGeneratorFlags(cmd, "")
+	cmd.Flags().StringSlice("image", []string{}, "Image name to run.")
+	cmd.MarkFlagRequired("image")
+	return cmd
+}
+
+// generatorFromName returns the appropriate StructuredGenerator based on the
+// generatorName. If the generatorName is unrecognized, then return (nil,
+// false).
+func generatorFromName(
+	generatorName string,
+	imageNames []string,
+	deploymentName string,
+) (kubectl.StructuredGenerator, bool) {
+
+	switch generatorName {
+	case cmdutil.DeploymentBasicAppsV1GeneratorName:
+		generator := &kubectl.DeploymentBasicAppsGeneratorV1{
+			BaseDeploymentGenerator: kubectl.BaseDeploymentGenerator{
+				Name:   deploymentName,
+				Images: imageNames,
+			},
+		}
+		return generator, true
+
+	case cmdutil.DeploymentBasicAppsV1Beta1GeneratorName:
+		generator := &kubectl.DeploymentBasicAppsGeneratorV1Beta1{
+			BaseDeploymentGenerator: kubectl.BaseDeploymentGenerator{
+				Name:   deploymentName,
+				Images: imageNames,
+			},
+		}
+		return generator, true
+
+	case cmdutil.DeploymentBasicV1Beta1GeneratorName:
+		generator := &kubectl.DeploymentBasicGeneratorV1{
+			BaseDeploymentGenerator: kubectl.BaseDeploymentGenerator{
+				Name:   deploymentName,
+				Images: imageNames,
+			},
+		}
+		return generator, true
+	}
+
+	return nil, false
+}
+
+// createDeployment
+// 1. Reads user config values from Cobra.
+// 2. Sets up the correct Generator object.
+// 3. Calls RunCreateSubcommand.
+func createDeployment(f cmdutil.Factory, cmdOut, cmdErr io.Writer,
+	cmd *cobra.Command, args []string) error {
+
+	deploymentName, err := NameFromCommandArgs(cmd, args)
+	if err != nil {
+		return err
+	}
+
+	clientset, err := f.ClientSet()
+	if err != nil {
+		return err
+	}
+
+	generatorName := cmdutil.GetFlagString(cmd, "generator")
+
+	if len(generatorName) == 0 {
+		generatorName = cmdutil.DeploymentBasicAppsV1GeneratorName
+		generatorNameTemp, err := cmdutil.FallbackGeneratorNameIfNecessary(generatorName, clientset.Discovery(), cmdErr)
+		if err != nil {
+			return err
+		}
+		if generatorNameTemp != generatorName {
+			cmdutil.Warning(cmdErr, generatorName, generatorNameTemp)
+		} else {
+			generatorName = generatorNameTemp
+		}
+	}
+
+	imageNames := cmdutil.GetFlagStringSlice(cmd, "image")
+	generator, ok := generatorFromName(generatorName, imageNames, deploymentName)
+	if !ok {
+		return errUnsupportedGenerator(cmd, generatorName)
+	}
+
+	return RunCreateSubcommand(f, cmd, cmdOut, &CreateSubcommandOptions{
+		Name:                deploymentName,
+		StructuredGenerator: generator,
+		DryRun:              cmdutil.GetDryRunFlag(cmd),
+		OutputFormat:        cmdutil.GetFlagString(cmd, "output"),
+	})
+}