Exemple #1
0
func getConfig(flagset *flag.FlagSet, userCfgFile string) (*config.Config, error) {
	opts := globalconf.Options{EnvPrefix: "FLEET_"}

	if userCfgFile != "" {
		// Fail hard if a user-provided config is not usable
		fi, err := os.Stat(userCfgFile)
		if err != nil {
			log.Fatalf("Unable to use config file %s: %v", userCfgFile, err)
		}
		if fi.IsDir() {
			log.Fatalf("Provided config %s is a directory, not a file", userCfgFile)
		}

		log.Infof("Using provided config file %s", userCfgFile)
		opts.Filename = userCfgFile

	} else if _, err := os.Stat(DefaultConfigFile); err == nil {
		log.Infof("Using default config file %s", DefaultConfigFile)
		opts.Filename = DefaultConfigFile
	} else {
		log.Infof("No provided or default config file found - proceeding without")
	}

	gconf, err := globalconf.NewWithOptions(&opts)
	if err != nil {
		return nil, err
	}

	gconf.ParseSet("", flagset)

	cfg := config.Config{
		Verbosity:               (*flagset.Lookup("verbosity")).Value.(flag.Getter).Get().(int),
		EtcdServers:             (*flagset.Lookup("etcd_servers")).Value.(flag.Getter).Get().(pkg.StringSlice),
		EtcdKeyPrefix:           (*flagset.Lookup("etcd_key_prefix")).Value.(flag.Getter).Get().(string),
		EtcdKeyFile:             (*flagset.Lookup("etcd_keyfile")).Value.(flag.Getter).Get().(string),
		EtcdCertFile:            (*flagset.Lookup("etcd_certfile")).Value.(flag.Getter).Get().(string),
		EtcdCAFile:              (*flagset.Lookup("etcd_cafile")).Value.(flag.Getter).Get().(string),
		EtcdRequestTimeout:      (*flagset.Lookup("etcd_request_timeout")).Value.(flag.Getter).Get().(float64),
		EngineReconcileInterval: (*flagset.Lookup("engine_reconcile_interval")).Value.(flag.Getter).Get().(float64),
		PublicIP:                (*flagset.Lookup("public_ip")).Value.(flag.Getter).Get().(string),
		RawMetadata:             (*flagset.Lookup("metadata")).Value.(flag.Getter).Get().(string),
		AgentTTL:                (*flagset.Lookup("agent_ttl")).Value.(flag.Getter).Get().(string),
		VerifyUnits:             (*flagset.Lookup("verify_units")).Value.(flag.Getter).Get().(bool),
		TokenLimit:              (*flagset.Lookup("token_limit")).Value.(flag.Getter).Get().(int),
		AuthorizedKeysFile:      (*flagset.Lookup("authorized_keys_file")).Value.(flag.Getter).Get().(string),
	}

	if cfg.VerifyUnits {
		log.Error("Config option verify_units is no longer supported - ignoring")
	}
	if len(cfg.AuthorizedKeysFile) > 0 {
		log.Error("Config option authorized_keys_file is no longer supported - ignoring")
	}

	if cfg.Verbosity > 0 {
		log.EnableDebug()
	}

	return &cfg, nil
}
Exemple #2
0
func main() {
	// parse global arguments
	globalFlagset.Parse(os.Args[1:])

	var args = globalFlagset.Args()

	getFlagsFromEnv(cliName, globalFlagset)

	if globalFlags.Debug {
		log.EnableDebug()
	}

	if globalFlags.Version {
		args = []string{"version"}
	} else if len(args) < 1 || globalFlags.Help {
		args = []string{"help"}
	}

	var cmd *Command

	// determine which Command should be run
	for _, c := range commands {
		if c.Name == args[0] {
			cmd = c
			if err := c.Flags.Parse(args[1:]); err != nil {
				stderr("%v", err)
				os.Exit(2)
			}
			break
		}
	}

	if cmd == nil {
		stderr("%v: unknown subcommand: %q", cliName, args[0])
		stderr("Run '%v help' for usage.", cliName)
		os.Exit(2)
	}

	if sharedFlags.Sign {
		stderr("WARNING: The signed/verified units feature is DEPRECATED and cannot be used.")
		os.Exit(2)
	}

	if cmd.Name != "help" && cmd.Name != "version" {
		var err error
		cAPI, err = getClient()
		if err != nil {
			stderr("Unable to initialize client: %v", err)
			os.Exit(1)
		}
	}

	os.Exit(cmd.Run(cmd.Flags.Args()))

}
Exemple #3
0
func main() {
	// parse global arguments
	globalFlagset.Parse(os.Args[1:])

	var args = globalFlagset.Args()

	getFlagsFromEnv(cliName, globalFlagset)

	if globalFlags.Debug {
		log.EnableDebug()
	}

	if globalFlags.Version {
		args = []string{"version"}
	} else if len(args) < 1 || globalFlags.Help {
		args = []string{"help"}
	}

	var cmd *Command

	// determine which Command should be run
	for _, c := range commands {
		if c.Name == args[0] {
			cmd = c
			if err := c.Flags.Parse(args[1:]); err != nil {
				stderr("%v", err)
				os.Exit(2)
			}
			break
		}
	}

	if cmd == nil {
		stderr("%v: unknown subcommand: %q", cliName, args[0])
		stderr("Run '%v help' for usage.", cliName)
		os.Exit(2)
	}

	if sharedFlags.Sign {
		stderr("WARNING: The signed/verified units feature is DEPRECATED and cannot be used.")
		os.Exit(2)
	}

	visited := make(map[string]bool, 0)
	globalFlagset.Visit(func(f *flag.Flag) { visited[f.Name] = true })

	// if --driver is not set, but --endpoint looks like an etcd
	// server, set the driver to etcd
	if visited["endpoint"] && !visited["driver"] {
		if u, err := url.Parse(strings.Split(globalFlags.Endpoint, ",")[0]); err == nil {
			if _, port, err := net.SplitHostPort(u.Host); err == nil && (port == "4001" || port == "2379") {
				log.Debugf("Defaulting to --driver=%s as --endpoint appears to be etcd", clientDriverEtcd)
				globalFlags.ClientDriver = clientDriverEtcd
			}
		}
	}

	if cmd.Name != "help" && cmd.Name != "version" {
		var err error
		cAPI, err = getClient()
		if err != nil {
			stderr("Unable to initialize client: %v", err)
			os.Exit(1)
		}
	}

	os.Exit(cmd.Run(cmd.Flags.Args()))

}
Exemple #4
0
func main() {
	if globalFlags.Debug {
		log.EnableDebug()
	}

	// call this as early as possible to ensure we always have timestamps
	// on fleetctl logs
	log.EnableTimestamps()

	if len(os.Args) == 1 {
		cmdFleet.Help()
		os.Exit(0)
	}

	if os.Args[1] == "--version" || os.Args[1] == "-v" {
		runVersion(cmdVersion, nil)
		os.Exit(0)
	}

	// determine currentCommand. We only need this for --replace and its
	// functional tests, so just handle those for now in the switch...
	// "The rest" doesn't care about "currentCommand"
	if len(os.Args) > 1 {
		for i := 1; i < len(os.Args); i++ {
			switch os.Args[i] {
			case "start":
				currentCommand = "start"
			case "load":
				currentCommand = "load"
			case "submit":
				currentCommand = "submit"
			default:
				continue
			}
		}
	}

	if sharedFlags.Sign {
		stderr("WARNING: The signed/verified units feature is DEPRECATED and cannot be used.")
		os.Exit(2)
	}

	// if --driver is not set, but --endpoint looks like an etcd
	// server, set the driver to etcd
	if globalFlags.Endpoint != "" && globalFlags.ClientDriver == "" {
		if u, err := url.Parse(strings.Split(globalFlags.Endpoint, ",")[0]); err == nil {
			if _, port, err := net.SplitHostPort(u.Host); err == nil && (port == "4001" || port == "2379") {
				log.Debugf("Defaulting to --driver=%s as --endpoint appears to be etcd", clientDriverEtcd)
				globalFlags.ClientDriver = clientDriverEtcd
			}
		}
	}

	cmdFleet.SetUsageFunc(usageFunc)
	cmdFleet.SetHelpTemplate(`{{.UsageString}}`)

	if err := cmdFleet.Execute(); err != nil {
		stderr("cannot execute cmdFleet: %v", err)
	}
	os.Exit(cmdExitCode)
}