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/*
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Copyright © 2019 Thorsten Klein <iwilltry42@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cmd
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import (
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"os"
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"strings"
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"github.com/spf13/cobra"
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"github.com/rancher/k3d/cmd/create"
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"github.com/rancher/k3d/cmd/delete"
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"github.com/rancher/k3d/cmd/get"
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log "github.com/sirupsen/logrus"
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)
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// RootFlags describes a struct that holds flags that can be set on root level of the command
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type RootFlags struct {
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debugLogging bool
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runtime string
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}
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var flags = RootFlags{}
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// var cfgFile string
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// rootCmd represents the base command when called without any subcommands
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var rootCmd = &cobra.Command{
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Use: "k3d",
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Short: "Run k3s in Docker!",
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Long: `k3d is a wrapper CLI that helps you to easily create k3s clusters inside docker.
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Nodes of a k3d cluster are docker containers running a k3s image.
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All Nodes of a k3d cluster are part of the same docker network.`,
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}
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// Execute adds all child commands to the root command and sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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log.Errorln(err)
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os.Exit(1)
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}
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}
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func init() {
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// cobra.OnInitialize(initConfig)
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cobra.OnInitialize(initLogging)
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// Here you will define your flags and configuration settings.
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// Cobra supports persistent flags, which, if defined here,
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// will be global for your application.
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// rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.k3d.yaml)")
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rootCmd.PersistentFlags().BoolVar(&flags.debugLogging, "verbose", false, "Enable verbose output (debug logging)")
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rootCmd.PersistentFlags().StringVarP(&flags.runtime, "runtime", "r", "docker", "Choose a container runtime environment [docker, containerd]")
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// Cobra also supports local flags, which will only run
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// when this action is called directly.
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// rootCmd.Flags().BoolP("nope", "n", false, "nope description")
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// add subcommands
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rootCmd.AddCommand(create.NewCmdCreate())
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rootCmd.AddCommand(delete.NewCmdDelete())
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rootCmd.AddCommand(get.NewCmdGet())
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}
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// initConfig reads in config file and ENV variables if set.
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/*
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func initConfig() {
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if cfgFile != "" {
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// Use config file from the flag.
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viper.SetConfigFile(cfgFile)
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} else {
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// Find home directory.
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home, err := homedir.Dir()
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if err != nil {
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log.Errorln(err)
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os.Exit(1)
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}
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// Search config in home directory with name ".k3d" (without extension).
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viper.AddConfigPath(home)
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viper.SetConfigName(".k3d")
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}
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viper.AutomaticEnv() // read in environment variables that match
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// If a config file is found, read it in.
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if err := viper.ReadInConfig(); err == nil {
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log.Debugln("Using config file:", viper.ConfigFileUsed())
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}
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}
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*/
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// initLogging initializes the logger
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func initLogging() {
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if flags.debugLogging {
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log.SetLevel(log.DebugLevel)
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} else {
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switch logLevel := strings.ToUpper(os.Getenv("LOG_LEVEL")); logLevel {
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case "DEBUG":
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log.SetLevel(log.DebugLevel)
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case "WARN":
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log.SetLevel(log.WarnLevel)
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default:
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log.SetLevel(log.InfoLevel)
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}
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}
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}
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