Golang monitorDiscovery Examples

Example #1

File: cluster.go Project: kingsmiler/swarm

// NewCluster is exported
func NewCluster(scheduler *scheduler.Scheduler, TLSConfig *tls.Config, discovery discovery.Backend, options cluster.DriverOpts, engineOptions *cluster.EngineOpts) (cluster.Cluster, error) {
	log.WithFields(log.Fields{"name": "swarm"}).Debug("Initializing cluster")

	cluster := &Cluster{
		eventHandlers:     cluster.NewEventHandlers(),
		engines:           make(map[string]*cluster.Engine),
		pendingEngines:    make(map[string]*cluster.Engine),
		scheduler:         scheduler,
		TLSConfig:         TLSConfig,
		discovery:         discovery,
		pendingContainers: make(map[string]*pendingContainer),
		overcommitRatio:   0.05,
		engineOpts:        engineOptions,
		createRetry:       0,
	}

	if val, ok := options.Float("swarm.overcommit", ""); ok {
		cluster.overcommitRatio = val
	}

	if val, ok := options.Int("swarm.createretry", ""); ok {
		if val < 0 {
			log.Fatalf("swarm.createretry=%d is invalid", val)
		}
		cluster.createRetry = val
	}

	discoveryCh, errCh := cluster.discovery.Watch(nil)
	go cluster.monitorDiscovery(discoveryCh, errCh)
	go cluster.monitorPendingEngines()

	return cluster, nil
}

Example #2

File: cluster.go Project: jepsenwan/swarm

// NewCluster is exported
func NewCluster(scheduler *scheduler.Scheduler, TLSConfig *tls.Config, discovery discovery.Discovery, options cluster.DriverOpts) (cluster.Cluster, error) {
	log.WithFields(log.Fields{"name": "swarm"}).Debug("Initializing cluster")

	cluster := &Cluster{
		engines:         make(map[string]*cluster.Engine),
		scheduler:       scheduler,
		TLSConfig:       TLSConfig,
		discovery:       discovery,
		overcommitRatio: 0.05,
	}

	if val, ok := options.Float("swarm.overcommit", ""); ok {
		cluster.overcommitRatio = val
	}

	discoveryCh, errCh := cluster.discovery.Watch(nil)
	go cluster.monitorDiscovery(discoveryCh, errCh)

	return cluster, nil
}

Example #3

File: cluster.go Project: cbbs/swarm

// NewCluster is exported
func NewCluster(scheduler *scheduler.Scheduler, TLSConfig *tls.Config, discovery discovery.Backend, options cluster.DriverOpts, engineOptions *cluster.EngineOpts) (cluster.Cluster, error) {
	log.WithFields(log.Fields{"name": "swarm"}).Debug("Initializing cluster")

	cluster := &Cluster{
		eventHandlers:     cluster.NewEventHandlers(),
		engines:           make(map[string]*cluster.Engine),
		pendingEngines:    make(map[string]*cluster.Engine),
		scheduler:         scheduler,
		TLSConfig:         TLSConfig,
		discovery:         discovery,
		pendingContainers: make(map[string]*pendingContainer),
		overcommitRatio:   0.05,
		engineOpts:        engineOptions,
		createRetry:       0,
	}

	if val, ok := options.Float("swarm.overcommit", ""); ok {
		if val <= float64(-1) {
			log.Fatalf("swarm.overcommit should be larger than -1, %f is invalid", val)
		} else if val < float64(0) {
			log.Warn("-1 < swarm.overcommit < 0 will make swarm take less resource than docker engine offers")
			cluster.overcommitRatio = val
		} else {
			cluster.overcommitRatio = val
		}
	}

	if val, ok := options.Int("swarm.createretry", ""); ok {
		if val < 0 {
			log.Fatalf("swarm.createretry can not be negative, %d is invalid", val)
		}
		cluster.createRetry = val
	}

	discoveryCh, errCh := cluster.discovery.Watch(nil)
	go cluster.monitorDiscovery(discoveryCh, errCh)
	go cluster.monitorPendingEngines()

	return cluster, nil
}