Golang Config.Merge方法代碼示例

func (c *ServerCommand) Reload(configPath []string) error {
	c.reloadFuncsLock.RLock()
	defer c.reloadFuncsLock.RUnlock()

	var reloadErrors *multierror.Error

	// Read the new config
	var config *server.Config
	for _, path := range configPath {
		current, err := server.LoadConfig(path, c.logger)
		if err != nil {
			reloadErrors = multierror.Append(reloadErrors, fmt.Errorf("Error loading configuration from %s: %s", path, err))
			goto audit
		}

		if config == nil {
			config = current
		} else {
			config = config.Merge(current)
		}
	}

	// Ensure at least one config was found.
	if config == nil {
		reloadErrors = multierror.Append(reloadErrors, fmt.Errorf("No configuration files found"))
		goto audit
	}

	// Call reload on the listeners. This will call each listener with each
	// config block, but they verify the address.
	for _, lnConfig := range config.Listeners {
		for _, relFunc := range (*c.reloadFuncs)["listener|"+lnConfig.Type] {
			if err := relFunc(lnConfig.Config); err != nil {
				reloadErrors = multierror.Append(reloadErrors, fmt.Errorf("Error encountered reloading configuration: %s", err))
				goto audit
			}
		}
	}

audit:
	// file audit reload funcs
	for k, relFuncs := range *c.reloadFuncs {
		if !strings.HasPrefix(k, "audit_file|") {
			continue
		}
		for _, relFunc := range relFuncs {
			if relFunc != nil {
				if err := relFunc(nil); err != nil {
					reloadErrors = multierror.Append(reloadErrors, fmt.Errorf("Error encountered reloading file audit backend at path %s: %v", strings.TrimPrefix(k, "audit_file|"), err))
				}
			}
		}
	}

	return reloadErrors.ErrorOrNil()
}

func (c *ServerCommand) Reload(configPath []string) error {
	// Read the new config
	var config *server.Config
	for _, path := range configPath {
		current, err := server.LoadConfig(path)
		if err != nil {
			retErr := fmt.Errorf("Error loading configuration from %s: %s", path, err)
			c.Ui.Error(retErr.Error())
			return retErr
		}

		if config == nil {
			config = current
		} else {
			config = config.Merge(current)
		}
	}

	// Ensure at least one config was found.
	if config == nil {
		retErr := fmt.Errorf("No configuration files found")
		c.Ui.Error(retErr.Error())
		return retErr
	}

	var reloadErrors *multierror.Error
	// Call reload on the listeners. This will call each listener with each
	// config block, but they verify the address.
	for _, lnConfig := range config.Listeners {
		for _, relFunc := range c.ReloadFuncs["listener|"+lnConfig.Type] {
			if err := relFunc(lnConfig.Config); err != nil {
				retErr := fmt.Errorf("Error encountered reloading configuration: %s", err)
				reloadErrors = multierror.Append(retErr)
			}
		}
	}

	return reloadErrors.ErrorOrNil()
}

func (c *ServerCommand) Run(args []string) int {
	var dev, verifyOnly bool
	var configPath []string
	var logLevel string
	flags := c.Meta.FlagSet("server", FlagSetDefault)
	flags.BoolVar(&dev, "dev", false, "")
	flags.StringVar(&logLevel, "log-level", "info", "")
	flags.BoolVar(&verifyOnly, "verify-only", false, "")
	flags.Usage = func() { c.Ui.Error(c.Help()) }
	flags.Var((*sliceflag.StringFlag)(&configPath), "config", "config")
	if err := flags.Parse(args); err != nil {
		return 1
	}

	// Validation
	if !dev && len(configPath) == 0 {
		c.Ui.Error("At least one config path must be specified with -config")
		flags.Usage()
		return 1
	}

	// Load the configuration
	var config *server.Config
	if dev {
		config = server.DevConfig()
	}
	for _, path := range configPath {
		current, err := server.LoadConfig(path)
		if err != nil {
			c.Ui.Error(fmt.Sprintf(
				"Error loading configuration from %s: %s", path, err))
			return 1
		}

		if config == nil {
			config = current
		} else {
			config = config.Merge(current)
		}
	}

	// Ensure that a backend is provided
	if config.Backend == nil {
		c.Ui.Error("A physical backend must be specified")
		return 1
	}

	// If mlock isn't supported, show a warning. We disable this in
	// dev because it is quite scary to see when first using Vault.
	if !dev && !mlock.Supported() {
		c.Ui.Output("==> WARNING: mlock not supported on this system!\n")
		c.Ui.Output("  The `mlock` syscall to prevent memory from being swapped to")
		c.Ui.Output("  disk is not supported on this system. Enabling mlock or")
		c.Ui.Output("  running Vault on a system with mlock is much more secure.\n")
	}

	// Create a logger. We wrap it in a gated writer so that it doesn't
	// start logging too early.
	logGate := &gatedwriter.Writer{Writer: os.Stderr}
	logger := log.New(&logutils.LevelFilter{
		Levels: []logutils.LogLevel{
			"TRACE", "DEBUG", "INFO", "WARN", "ERR"},
		MinLevel: logutils.LogLevel(strings.ToUpper(logLevel)),
		Writer:   logGate,
	}, "", log.LstdFlags)

	if err := c.setupTelementry(config); err != nil {
		c.Ui.Error(fmt.Sprintf("Error initializing telemetry: %s", err))
		return 1
	}

	// Initialize the backend
	backend, err := physical.NewBackend(
		config.Backend.Type, config.Backend.Config)
	if err != nil {
		c.Ui.Error(fmt.Sprintf(
			"Error initializing backend of type %s: %s",
			config.Backend.Type, err))
		return 1
	}

	coreConfig := &vault.CoreConfig{
		Physical:           backend,
		AdvertiseAddr:      config.Backend.AdvertiseAddr,
		HAPhysical:         nil,
		AuditBackends:      c.AuditBackends,
		CredentialBackends: c.CredentialBackends,
		LogicalBackends:    c.LogicalBackends,
		Logger:             logger,
		DisableCache:       config.DisableCache,
		DisableMlock:       config.DisableMlock,
		MaxLeaseTTL:        config.MaxLeaseTTL,
		DefaultLeaseTTL:    config.DefaultLeaseTTL,
	}

	// Initialize the separate HA physical backend, if it exists
	if config.HABackend != nil {
		habackend, err := physical.NewBackend(
			config.HABackend.Type, config.HABackend.Config)
		if err != nil {
//.........這裏部分代碼省略.........

func (c *ServerCommand) Run(args []string) int {
	var dev, verifyOnly, devHA bool
	var configPath []string
	var logLevel, devRootTokenID, devListenAddress string
	flags := c.Meta.FlagSet("server", meta.FlagSetDefault)
	flags.BoolVar(&dev, "dev", false, "")
	flags.StringVar(&devRootTokenID, "dev-root-token-id", "", "")
	flags.StringVar(&devListenAddress, "dev-listen-address", "", "")
	flags.StringVar(&logLevel, "log-level", "info", "")
	flags.BoolVar(&verifyOnly, "verify-only", false, "")
	flags.BoolVar(&devHA, "dev-ha", false, "")
	flags.Usage = func() { c.Ui.Output(c.Help()) }
	flags.Var((*sliceflag.StringFlag)(&configPath), "config", "config")
	if err := flags.Parse(args); err != nil {
		return 1
	}

	// Create a logger. We wrap it in a gated writer so that it doesn't
	// start logging too early.
	logGate := &gatedwriter.Writer{Writer: colorable.NewColorable(os.Stderr)}
	var level int
	switch logLevel {
	case "trace":
		level = log.LevelTrace
	case "debug":
		level = log.LevelDebug
	case "info":
		level = log.LevelInfo
	case "notice":
		level = log.LevelNotice
	case "warn":
		level = log.LevelWarn
	case "err":
		level = log.LevelError
	default:
		c.Ui.Output(fmt.Sprintf("Unknown log level %s", logLevel))
		return 1
	}

	logFormat := os.Getenv("VAULT_LOG_FORMAT")
	if logFormat == "" {
		logFormat = os.Getenv("LOGXI_FORMAT")
	}
	switch strings.ToLower(logFormat) {
	case "vault", "vault_json", "vault-json", "vaultjson", "json", "":
		c.logger = logformat.NewVaultLoggerWithWriter(logGate, level)
	default:
		c.logger = log.NewLogger(logGate, "vault")
		c.logger.SetLevel(level)
	}
	grpclog.SetLogger(&grpclogFaker{
		logger: c.logger,
	})

	if os.Getenv("VAULT_DEV_ROOT_TOKEN_ID") != "" && devRootTokenID == "" {
		devRootTokenID = os.Getenv("VAULT_DEV_ROOT_TOKEN_ID")
	}

	if os.Getenv("VAULT_DEV_LISTEN_ADDRESS") != "" && devListenAddress == "" {
		devListenAddress = os.Getenv("VAULT_DEV_LISTEN_ADDRESS")
	}

	if devHA {
		dev = true
	}

	// Validation
	if !dev {
		switch {
		case len(configPath) == 0:
			c.Ui.Output("At least one config path must be specified with -config")
			flags.Usage()
			return 1
		case devRootTokenID != "":
			c.Ui.Output("Root token ID can only be specified with -dev")
			flags.Usage()
			return 1
		}
	}

	// Load the configuration
	var config *server.Config
	if dev {
		config = server.DevConfig(devHA)
		if devListenAddress != "" {
			config.Listeners[0].Config["address"] = devListenAddress
		}
	}
	for _, path := range configPath {
		current, err := server.LoadConfig(path, c.logger)
		if err != nil {
			c.Ui.Output(fmt.Sprintf(
				"Error loading configuration from %s: %s", path, err))
			return 1
		}

		if config == nil {
			config = current
		} else {
			config = config.Merge(current)
//.........這裏部分代碼省略.........

func (c *ServerCommand) Run(args []string) int {
	var dev, verifyOnly bool
	var configPath []string
	var logLevel, devRootTokenID, devListenAddress string
	flags := c.Meta.FlagSet("server", meta.FlagSetDefault)
	flags.BoolVar(&dev, "dev", false, "")
	flags.StringVar(&devRootTokenID, "dev-root-token-id", "", "")
	flags.StringVar(&devListenAddress, "dev-listen-address", "", "")
	flags.StringVar(&logLevel, "log-level", "info", "")
	flags.BoolVar(&verifyOnly, "verify-only", false, "")
	flags.Usage = func() { c.Ui.Error(c.Help()) }
	flags.Var((*sliceflag.StringFlag)(&configPath), "config", "config")
	if err := flags.Parse(args); err != nil {
		return 1
	}

	if os.Getenv("VAULT_DEV_ROOT_TOKEN_ID") != "" && devRootTokenID == "" {
		devRootTokenID = os.Getenv("VAULT_DEV_ROOT_TOKEN_ID")
	}

	if os.Getenv("VAULT_DEV_LISTEN_ADDRESS") != "" && devListenAddress == "" {
		devListenAddress = os.Getenv("VAULT_DEV_LISTEN_ADDRESS")
	}

	// Validation
	if !dev {
		switch {
		case len(configPath) == 0:
			c.Ui.Error("At least one config path must be specified with -config")
			flags.Usage()
			return 1
		case devRootTokenID != "":
			c.Ui.Error("Root token ID can only be specified with -dev")
			flags.Usage()
			return 1
		case devListenAddress != "":
			c.Ui.Error("Development address can only be specified with -dev")
			flags.Usage()
			return 1
		}
	}

	// Load the configuration
	var config *server.Config
	if dev {
		config = server.DevConfig()
		if devListenAddress != "" {
			config.Listeners[0].Config["address"] = devListenAddress
		}
	}
	for _, path := range configPath {
		current, err := server.LoadConfig(path)
		if err != nil {
			c.Ui.Error(fmt.Sprintf(
				"Error loading configuration from %s: %s", path, err))
			return 1
		}

		if config == nil {
			config = current
		} else {
			config = config.Merge(current)
		}
	}

	// Ensure at least one config was found.
	if config == nil {
		c.Ui.Error("No configuration files found.")
		return 1
	}

	// Ensure that a backend is provided
	if config.Backend == nil {
		c.Ui.Error("A physical backend must be specified")
		return 1
	}

	// If mlockall(2) isn't supported, show a warning.  We disable this
	// in dev because it is quite scary to see when first using Vault.
	if !dev && !mlock.Supported() {
		c.Ui.Output("==> WARNING: mlock not supported on this system!\n")
		c.Ui.Output("  An `mlockall(2)`-like syscall to prevent memory from being")
		c.Ui.Output("  swapped to disk is not supported on this system. Running")
		c.Ui.Output("  Vault on an mlockall(2) enabled system is much more secure.\n")
	}

	// Create a logger. We wrap it in a gated writer so that it doesn't
	// start logging too early.
	logGate := &gatedwriter.Writer{Writer: os.Stderr}
	c.logger = log.New(&logutils.LevelFilter{
		Levels: []logutils.LogLevel{
			"TRACE", "DEBUG", "INFO", "WARN", "ERR"},
		MinLevel: logutils.LogLevel(strings.ToUpper(logLevel)),
		Writer:   logGate,
	}, "", log.LstdFlags)

	if err := c.setupTelemetry(config); err != nil {
		c.Ui.Error(fmt.Sprintf("Error initializing telemetry: %s", err))
		return 1
	}
//.........這裏部分代碼省略.........