Exemplo n.º 1
0
func initializeDopplerPool(config *config.Config, logger *gosteno.Logger) (*clientpool.DopplerPool, error) {
	adapter, err := storeAdapterProvider(config.EtcdUrls, config.EtcdMaxConcurrentRequests)
	if err != nil {
		return nil, err
	}
	err = adapter.Connect()
	if err != nil {
		logger.Warnd(map[string]interface{}{
			"error": err.Error(),
		}, "Failed to connect to etcd")
	}

	preferInZone := func(relativePath string) bool {
		return strings.HasPrefix(relativePath, "/"+config.Zone+"/")
	}

	var tlsConfig *tls.Config
	if config.PreferredProtocol == "tls" {
		c := config.TLSConfig
		tlsConfig, err = listeners.NewTLSConfig(c.CertFile, c.KeyFile, c.CAFile)
		if err != nil {
			return nil, err
		}
		tlsConfig.ServerName = "doppler"
	}

	clientPool := clientpool.NewDopplerPool(logger, func(logger *gosteno.Logger, url string) (clientpool.Client, error) {
		client, err := clientpool.NewClient(logger, url, tlsConfig)
		if err == nil && client.Scheme() != config.PreferredProtocol {
			logger.Warnd(map[string]interface{}{
				"url": url,
			}, "Doppler advertising UDP only")
		}
		return client, err
	})

	onUpdate := func(all map[string]string, preferred map[string]string) {
		clientPool.Set(all, preferred)
	}

	dopplers, err := dopplerservice.NewFinder(adapter, config.PreferredProtocol, preferInZone, onUpdate, logger)
	if err != nil {
		return nil, err
	}
	dopplers.Start()

	onLegacyUpdate := func(all map[string]string, preferred map[string]string) {
		clientPool.SetLegacy(all, preferred)
	}

	legacyDopplers := dopplerservice.NewLegacyFinder(adapter, config.LoggregatorDropsondePort, preferInZone, onLegacyUpdate, logger)
	legacyDopplers.Start()

	return clientPool, nil
}
Exemplo n.º 2
0
func initializeClientPool(config *config.Config, logger *gosteno.Logger) (*clientpool.DopplerPool, error) {
	adapter := storeAdapterProvider(config.EtcdUrls, config.EtcdMaxConcurrentRequests)
	err := adapter.Connect()
	if err != nil {
		return nil, err
	}

	preferInZone := func(relativePath string) bool {
		return strings.HasPrefix(relativePath, "/"+config.Zone+"/")
	}

	clientPool := clientpool.NewDopplerPool(logger, func(logger *gosteno.Logger, url string) (loggregatorclient.Client, error) {
		client, err := clientpool.NewClient(logger, url)
		if err == nil && client.Scheme() != config.PreferredProtocol {
			logger.Warnd(map[string]interface{}{
				"url": url,
			}, "Doppler advertising UDP only")
		}
		return client, err
	})

	onUpdate := func(all map[string]string, preferred map[string]string) {
		clientPool.Set(all, preferred)
	}

	dopplers, err := dopplerservice.NewFinder(adapter, config.PreferredProtocol, preferInZone, onUpdate, logger)
	if err != nil {
		return nil, err
	}
	dopplers.Start()

	onLegacyUpdate := func(all map[string]string, preferred map[string]string) {
		clientPool.SetLegacy(all, preferred)
	}

	legacyDopplers := dopplerservice.NewLegacyFinder(adapter, config.LoggregatorDropsondePort, preferInZone, onLegacyUpdate, logger)
	legacyDopplers.Start()

	return clientPool, nil
}