78 lines
2.8 KiB
Go
78 lines
2.8 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package commands
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import (
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"fmt"
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"io"
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"github.com/spf13/cobra"
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)
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type addConfigMap struct {
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// Name of configMap (required)
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Name string
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// FileSources to derive the configMap from (optional)
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FileSources []string
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// LiteralSources to derive the configMap from (optional)
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LiteralSources []string
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// EnvFileSource to derive the configMap from (optional)
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EnvFileSource string
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}
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// validate validates required fields are set to support structured generation.
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func (a *addConfigMap) Validate(args []string) error {
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if len(args) != 1 {
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return fmt.Errorf("name must be specified once")
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}
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a.Name = args[0]
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if len(a.EnvFileSource) == 0 && len(a.FileSources) == 0 && len(a.LiteralSources) == 0 {
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return fmt.Errorf("at least from-env-file, or from-file or from-literal must be set")
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}
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if len(a.EnvFileSource) > 0 && (len(a.FileSources) > 0 || len(a.LiteralSources) > 0) {
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return fmt.Errorf("from-env-file cannot be combined with from-file or from-literal")
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}
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// TODO: Should we check if the path exists? if it's valid, if it's within the same (sub-)directory?
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return nil
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}
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func NewCmdAddConfigMap(errOut io.Writer) *cobra.Command {
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var config addConfigMap
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cmd := &cobra.Command{
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Use: "configmap NAME [--from-file=[key=]source] [--from-literal=key1=value1]",
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Short: "Adds a configmap to your manifest file.",
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Long: "",
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Example: "",
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RunE: func(_ *cobra.Command, args []string) error {
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err := config.Validate(args)
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if err != nil {
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return err
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}
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// TODO(apelisse,droot): Do something with that config.
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return nil
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},
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}
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cmd.Flags().StringSliceVar(&config.FileSources, "from-file", []string{}, "Key file can be specified using its file path, in which case file basename will be used as configmap key, or optionally with a key and file path, in which case the given key will be used. Specifying a directory will iterate each named file in the directory whose basename is a valid configmap key.")
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cmd.Flags().StringArrayVar(&config.LiteralSources, "from-literal", []string{}, "Specify a key and literal value to insert in configmap (i.e. mykey=somevalue)")
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cmd.Flags().StringVar(&config.EnvFileSource, "from-env-file", "", "Specify the path to a file to read lines of key=val pairs to create a configmap (i.e. a Docker .env file).")
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return cmd
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}
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