Add kubectl create configmap

pkg/kubectl/cmd/create_configmap.go

@@ -0,0 +1,96 @@
+/*
+Copyright 2016 The Kubernetes Authors 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
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/spf13/cobra"
+
+	"k8s.io/kubernetes/pkg/kubectl"
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+)
+
+const (
+	configMapLong = `Create a configmap based on a file, directory, or specified literal value.
+
+A single configmap may package one or more key/value pairs.
+
+When creating a configmap based on a file, the key will default to the basename of the file, and the value will
+default to the file content.  If the basename is an invalid key, you may specify an alternate key.
+
+When creating a configmap based on a directory, each file whose basename is a valid key in the directory will be
+packaged into the configmap.  Any directory entries except regular files are ignored (e.g. subdirectories,
+symlinks, devices, pipes, etc).
+`
+
+	configMapExample = `  # Create a new configmap named my-config with keys for each file in folder bar
+  $ kubectl create configmap generic my-config --from-file=path/to/bar
+
+  # Create a new configmap named my-config with specified keys instead of names on disk
+  $ kubectl create configmap generic my-config --from-file=ssh-privatekey=~/.ssh/id_rsa --from-file=ssh-publickey=~/.ssh/id_rsa.pub
+
+  # Create a new configMap named my-config with key1=config1 and key2=config2
+  $ kubectl create configmap generic my-config --from-literal=key1=config1 --from-literal=key2=config2`
+)
+
+// ConfigMap is a command to ease creating ConfigMaps.
+func NewCmdCreateConfigMap(f *cmdutil.Factory, cmdOut io.Writer) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "configmap NAME [--type=string] [--from-file=[key=]source] [--from-literal=key1=value1] [--dry-run]",
+		Short:   "Create a configMap from a local file, directory or literal value.",
+		Long:    configMapLong,
+		Example: configMapExample,
+		Run: func(cmd *cobra.Command, args []string) {
+			err := CreateConfigMap(f, cmdOut, cmd, args)
+			cmdutil.CheckErr(err)
+		},
+	}
+	cmdutil.AddApplyAnnotationFlags(cmd)
+	cmdutil.AddValidateFlags(cmd)
+	cmdutil.AddPrinterFlags(cmd)
+	cmdutil.AddGeneratorFlags(cmd, cmdutil.ConfigMapV1GeneratorName)
+	cmd.Flags().StringSlice("from-file", []string{}, "Key files can be specified using their file path, in which case a default name will be given to them, or optionally with a name and file path, in which case the given name will be used.  Specifying a directory will iterate each named file in the directory that is a valid configmap key.")
+	cmd.Flags().StringSlice("from-literal", []string{}, "Specify a key and literal value to insert in configmap (i.e. mykey=somevalue)")
+	return cmd
+}
+
+// CreateConfigMap is the implementation of the create configmap generic command.
+func CreateConfigMap(f *cmdutil.Factory, cmdOut io.Writer, cmd *cobra.Command, args []string) error {
+	name, err := NameFromCommandArgs(cmd, args)
+	if err != nil {
+		return err
+	}
+	var generator kubectl.StructuredGenerator
+	switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
+	case cmdutil.ConfigMapV1GeneratorName:
+		generator = &kubectl.ConfigMapGeneratorV1{
+			Name:           name,
+			FileSources:    cmdutil.GetFlagStringSlice(cmd, "from-file"),
+			LiteralSources: cmdutil.GetFlagStringSlice(cmd, "from-literal"),
+		}
+	default:
+		return cmdutil.UsageError(cmd, fmt.Sprintf("Generator: %s not supported.", generatorName))
+	}
+	return RunCreateSubcommand(f, cmd, cmdOut, &CreateSubcommandOptions{
+		Name:                name,
+		StructuredGenerator: generator,
+		DryRun:              cmdutil.GetFlagBool(cmd, "dry-run"),
+		OutputFormat:        cmdutil.GetFlagString(cmd, "output"),
+	})
+}