/* Copyright © 2021 da/net research group <danet.fbi.h-da.de> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package cmd import ( "context" "os" "code.fbi.h-da.de/danet/gosdn" log "github.com/sirupsen/logrus" "github.com/spf13/cobra" "github.com/spf13/viper" ) var cfgFile string var loglevel string var grpcPort string var csbiOrchestrstor string // rootCmd represents the base command when called without any subcommands var rootCmd = &cobra.Command{ Use: "gosdn", Short: "starts the gosdn controller", Long: `Starts the gosdn controller and listens on port 8080 for REST API calls.`, RunE: func(cmd *cobra.Command, args []string) error { ctx, cancel := context.WithCancel(context.Background()) defer cancel() return gosdn.Run(ctx) }, } // Execute adds all child commands to the root command and sets flags appropriately. // This is called by main.main(). It only needs to happen once to the rootCmd. func Execute() { if err := rootCmd.Execute(); err != nil { log.WithFields(log.Fields{}).Error(err) os.Exit(1) } } func init() { cobra.OnInitialize(initConfig) rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is ./configs/gosdn.toml)") rootCmd.PersistentFlags().StringVarP(&loglevel, "log-level", "l", "", "log level 'debug' or 'trace'") rootCmd.Flags().StringVar(&grpcPort, "grpc-port", "55055", "port for gRPC NBI") rootCmd.Flags().StringVar(&csbiOrchestrstor, "csbi-orchestrator", "localhost:55056", "csbi orchestrator address") } // initConfig reads in config file and ENV variables if set. func initConfig() { if cfgFile != "" { // Use config file from the flag. viper.SetConfigFile(cfgFile) } else { viper.AddConfigPath("./configs") viper.AddConfigPath("/usr/local/etc/gosdn/") viper.SetConfigType("toml") viper.SetConfigName("gosdn") } viper.AutomaticEnv() // read in environment variables that match // If a config file is found, read it in. if err := viper.ReadInConfig(); err == nil { log.Debug("Using config file:", viper.ConfigFileUsed()) } viper.SetDefault("socket", ":55055") viper.SetDefault("csbi-orchestrator", "localhost:55056") ll := viper.GetString("GOSDN_LOG") if ll != "" { loglevel = ll } log.SetReportCaller(true) switch loglevel { case "trace": log.SetLevel(log.TraceLevel) case "debug": log.SetLevel(log.DebugLevel) default: log.SetLevel(log.InfoLevel) log.SetFormatter(&log.JSONFormatter{}) log.SetReportCaller(false) } }