cmd

Documentation

Index

• Variables
• func LoadConfiguration()

Variables

var Agent = &cobra.Command{
	Use:          "agent",
	Short:        "Skydive agent",
	Long:         "Skydive agent",
	SilenceUsage: true,
	Run: func(cmd *cobra.Command, args []string) {
		config.GetConfig().Set("logging.id", "agent")
		logging.GetLogger().Noticef("Skydive Agent %s starting...", version.Version)
		agent := agent.NewAgent()
		agent.Start()

		logging.GetLogger().Notice("Skydive Agent started")
		ch := make(chan os.Signal)
		signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
		<-ch

		agent.Stop()

		logging.GetLogger().Notice("Skydive Agent stopped.")
	},
}

Agent skydive agent root command

var AllInOne = &cobra.Command{
	Use:          "allinone",
	Short:        "Skydive All-In-One",
	Long:         "Skydive All-In-One (Analyzer + Agent)",
	SilenceUsage: true,
	Run: func(cmd *cobra.Command, args []string) {
		skydivePath, _ := osext.Executable()

		analyzerAttr := &os.ProcAttr{
			Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
			Env:   os.Environ(),
		}

		if analyzerUID != 0 {
			analyzerAttr.Sys = &syscall.SysProcAttr{
				Credential: &syscall.Credential{
					Uid: analyzerUID,
				},
			}
		}

		args = []string{"skydive"}

		for _, cfgFile := range cfgFiles {
			args = append(args, "-c")
			args = append(args, cfgFile)
		}

		if cfgBackend != "" {
			args = append(args, "-b")
			args = append(args, cfgBackend)
		}

		analyzerArgs := make([]string, len(args))
		copy(analyzerArgs, args)

		if len(cfgFiles) != 0 {
			if err := config.InitConfig(cfgBackend, cfgFiles); err != nil {
				panic(fmt.Sprintf("Failed to initialize config: %s", err.Error()))
			}
		}

		if err := logging.InitLogging(); err != nil {
			panic(fmt.Sprintf("Failed to initialize logging system: %s", err.Error()))
		}

		analyzer, err := os.StartProcess(skydivePath, append(analyzerArgs, "analyzer"), analyzerAttr)
		if err != nil {
			logging.GetLogger().Fatalf("Can't start Skydive All-in-One : %v", err)
		}

		os.Setenv("SKYDIVE_ANALYZERS", config.GetConfig().GetString("analyzer.listen"))

		agentAttr := &os.ProcAttr{
			Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
			Env:   os.Environ(),
		}

		agentArgs := make([]string, len(args))
		copy(agentArgs, args)

		agent, err := os.StartProcess(skydivePath, append(agentArgs, "agent"), agentAttr)
		if err != nil {
			logging.GetLogger().Fatalf("Can't start Skydive All-in-One : %v", err)
		}

		logging.GetLogger().Notice("Skydive All-in-One starting !")
		ch := make(chan os.Signal)
		signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
		<-ch

		analyzer.Kill()
		agent.Kill()

		analyzer.Wait()
		agent.Wait()

		logging.GetLogger().Notice("Skydive All-in-One stopped.")
	},
}

AllInOne skydive allinone root command

var Analyzer = &cobra.Command{
	Use:          "analyzer",
	Short:        "Skydive analyzer",
	Long:         "Skydive analyzer",
	SilenceUsage: true,
	Run: func(cmd *cobra.Command, args []string) {
		config.GetConfig().Set("logging.id", "agent")
		logging.GetLogger().Noticef("Skydive Analyzer %s starting...", version.Version)

		server := analyzer.NewServerFromConfig()
		server.Start()

		logging.GetLogger().Notice("Skydive Analyzer started !")
		ch := make(chan os.Signal)
		signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
		<-ch

		server.Stop()

		logging.GetLogger().Notice("Skydive Analyzer stopped.")
	},
}

Analyzer skydive analyzer root command

var Client = &cobra.Command{
	Use:          "client",
	Short:        "Skydive client",
	Long:         "Skydive client",
	SilenceUsage: true,
	PersistentPreRun: func(cmd *cobra.Command, args []string) {
		cmd.Root().PersistentPreRun(cmd.Root(), args)
		if analyzerAddr != "" {
			config.GetConfig().Set("analyzers", analyzerAddr)
		} else {
			config.GetConfig().SetDefault("analyzers", "localhost:8082")
		}
	},
}

Client skydive client root command

var RootCmd = &cobra.Command{
	Use:          "skydive [sub]",
	Short:        "Skydive",
	SilenceUsage: true,
	PersistentPreRun: func(cmd *cobra.Command, args []string) {
		LoadConfiguration()
	},
}

RootCmd skydive root command

var VersionCmd = &cobra.Command{
	Use:   "version",
	Short: "Print the version number of Skydive",
	Run: func(cmd *cobra.Command, args []string) {
		version.PrintVersion()
	},
}

VersionCmd skydive version root command

Functions

func LoadConfiguration

func LoadConfiguration()

LoadConfiguration from a configuration file