// 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
}
// 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
}
// NewCluster for mesos Cluster creation
func NewCluster(scheduler *scheduler.Scheduler, TLSConfig *tls.Config, master string, options cluster.DriverOpts, engineOptions *cluster.EngineOpts) (cluster.Cluster, error) {
log.WithFields(log.Fields{"name": "mesos"}).Debug("Initializing cluster")
// Enabling mesos-go glog logging
if log.GetLevel() == log.DebugLevel {
flag.Lookup("logtostderr").Value.Set("true")
}
cluster := &Cluster{
dockerEnginePort: defaultDockerEnginePort,
eventHandlers: cluster.NewEventHandlers(),
master: master,
agents: make(map[string]*agent),
TLSConfig: TLSConfig,
options: &options,
offerTimeout: defaultOfferTimeout,
taskCreationTimeout: defaultTaskCreationTimeout,
engineOpts: engineOptions,
refuseTimeout: defaultRefuseTimeout,
}
cluster.pendingTasks = task.NewTasks(cluster)
// Empty string is accepted by the scheduler.
user, _ := options.String("mesos.user", "SWARM_MESOS_USER")
// Override the hostname here because mesos-go will try
// to shell out to the hostname binary and it won't work with our official image.
// Do not check error here, so mesos-go can still try.
hostname, _ := os.Hostname()
driverConfig := mesosscheduler.DriverConfig{
Framework: &mesosproto.FrameworkInfo{Name: proto.String(frameworkName), User: &user},
Master: cluster.master,
HostnameOverride: hostname,
}
if taskCreationTimeout, ok := options.String("mesos.tasktimeout", "SWARM_MESOS_TASK_TIMEOUT"); ok {
d, err := time.ParseDuration(taskCreationTimeout)
if err != nil {
return nil, err
}
cluster.taskCreationTimeout = d
}
// Changing port for https
if cluster.TLSConfig != nil {
cluster.dockerEnginePort = defaultDockerEngineTLSPort
}
if bindingPort, ok := options.Uint("mesos.port", "SWARM_MESOS_PORT"); ok {
driverConfig.BindingPort = uint16(bindingPort)
}
if bindingAddress, ok := options.IP("mesos.address", "SWARM_MESOS_ADDRESS"); ok {
if bindingAddress == nil {
value, _ := options.String("mesos.address", "SWARM_MESOS_ADDRESS")
return nil, fmt.Errorf(
"invalid IP address for cluster-opt mesos.address: \"%s\"",
value)
}
driverConfig.BindingAddress = bindingAddress
}
if checkpointFailover, ok := options.Bool("mesos.checkpointfailover", "SWARM_MESOS_CHECKPOINT_FAILOVER"); ok {
driverConfig.Framework.Checkpoint = &checkpointFailover
}
if offerTimeout, ok := options.String("mesos.offertimeout", "SWARM_MESOS_OFFER_TIMEOUT"); ok {
d, err := time.ParseDuration(offerTimeout)
if err != nil {
return nil, err
}
cluster.offerTimeout = d
}
if refuseTimeout, ok := options.String("mesos.offerrefusetimeout", "SWARM_MESOS_OFFER_REFUSE_TIMEOUT"); ok {
d, err := time.ParseDuration(refuseTimeout)
if err != nil {
return nil, err
}
cluster.refuseTimeout = d
}
sched, err := NewScheduler(driverConfig, cluster, scheduler)
if err != nil {
return nil, err
}
cluster.scheduler = sched
status, err := sched.driver.Start()
if err != nil {
log.Debugf("Mesos driver started, status/err %v: %v", status, err)
return nil, err
}
log.Debugf("Mesos driver started, status %v", status)
go func() {
status, err := sched.driver.Join()
log.Debugf("Mesos driver stopped unexpectedly, status/err %v: %v", status, err)
}()
return cluster, nil
}