Golang components.New函数代码示例

func newLifecycleTest(t *testing.T) lifecycleTest {
	assert := &EventAssertions{*assert.New(t)}

	// create a fake pod watch. We use that below to submit new pods to the scheduler
	podsListWatch := NewMockPodsListWatch(api.PodList{})

	// create fake apiserver
	apiServer := NewTestServer(t, api.NamespaceDefault, podsListWatch)

	// create ExecutorInfo with some data for static pods if set
	ei := mesosutil.NewExecutorInfo(
		mesosutil.NewExecutorID("executor-id"),
		mesosutil.NewCommandInfo("executor-cmd"),
	)
	ei.Data = []byte{0, 1, 2}

	// create framework
	client := client.NewOrDie(&client.Config{
		Host:         apiServer.server.URL,
		GroupVersion: testapi.Default.GroupVersion(),
	})
	c := *schedcfg.CreateDefaultConfig()
	fw := framework.New(framework.Config{
		Executor:        ei,
		Client:          client,
		SchedulerConfig: c,
		LookupNode:      apiServer.LookupNode,
	})

	// TODO(sttts): re-enable the following tests
	// assert.NotNil(framework.client, "client is nil")
	// assert.NotNil(framework.executor, "executor is nil")
	// assert.NotNil(framework.offers, "offer registry is nil")

	// create pod scheduler
	strategy := podschedulers.NewAllocationStrategy(
		podtask.NewDefaultPredicate(
			mresource.DefaultDefaultContainerCPULimit,
			mresource.DefaultDefaultContainerMemLimit,
		),
		podtask.NewDefaultProcurement(
			mresource.DefaultDefaultContainerCPULimit,
			mresource.DefaultDefaultContainerMemLimit,
		),
	)
	fcfs := podschedulers.NewFCFSPodScheduler(strategy, apiServer.LookupNode)

	// create scheduler process
	schedulerProc := ha.New(fw)

	// create scheduler
	eventObs := NewEventObserver()
	scheduler := components.New(&c, fw, fcfs, client, eventObs, schedulerProc.Terminal(), http.DefaultServeMux, &podsListWatch.ListWatch)
	assert.NotNil(scheduler)

	// create mock mesos scheduler driver
	driver := &framework.JoinableDriver{}

	return lifecycleTest{
		apiServer:     apiServer,
		driver:        driver,
		eventObs:      eventObs,
		podsListWatch: podsListWatch,
		framework:     fw,
		schedulerProc: schedulerProc,
		sched:         scheduler,
		t:             t,
	}
}

func (s *SchedulerServer) bootstrap(hks hyperkube.Interface, sc *schedcfg.Config) (*ha.SchedulerProcess, ha.DriverFactory, tools.EtcdClient, *uid.UID) {

	s.frameworkName = strings.TrimSpace(s.frameworkName)
	if s.frameworkName == "" {
		log.Fatalf("framework-name must be a non-empty string")
	}
	s.frameworkWebURI = strings.TrimSpace(s.frameworkWebURI)

	metrics.Register()
	runtime.Register()
	s.mux.Handle("/metrics", prometheus.Handler())
	healthz.InstallHandler(s.mux)

	if (s.etcdConfigFile != "" && len(s.etcdServerList) != 0) || (s.etcdConfigFile == "" && len(s.etcdServerList) == 0) {
		log.Fatalf("specify either --etcd-servers or --etcd-config")
	}

	if len(s.apiServerList) < 1 {
		log.Fatal("No api servers specified.")
	}

	client, err := s.createAPIServerClient()
	if err != nil {
		log.Fatalf("Unable to make apiserver client: %v", err)
	}
	s.client = client

	if s.reconcileCooldown < defaultReconcileCooldown {
		s.reconcileCooldown = defaultReconcileCooldown
		log.Warningf("user-specified reconcile cooldown too small, defaulting to %v", s.reconcileCooldown)
	}

	executor, eid, err := s.prepareExecutorInfo(hks)
	if err != nil {
		log.Fatalf("misconfigured executor: %v", err)
	}

	// TODO(jdef): remove the dependency on etcd as soon as
	// (1) the generic config store is available for the FrameworkId storage
	// (2) the generic master election is provided by the apiserver
	// Compare docs/proposals/high-availability.md
	etcdClient, err := newEtcd(s.etcdConfigFile, s.etcdServerList)
	if err != nil {
		log.Fatalf("misconfigured etcd: %v", err)
	}

	as := podschedulers.NewAllocationStrategy(
		podtask.NewDefaultPredicate(
			s.defaultContainerCPULimit,
			s.defaultContainerMemLimit,
		),
		podtask.NewDefaultProcurement(
			s.defaultContainerCPULimit,
			s.defaultContainerMemLimit,
		),
	)

	// downgrade allocation strategy if user disables "account-for-pod-resources"
	if !s.accountForPodResources {
		as = podschedulers.NewAllocationStrategy(
			podtask.DefaultMinimalPredicate,
			podtask.DefaultMinimalProcurement)
	}

	// mirror all nodes into the nodeStore
	nodesClient, err := s.createAPIServerClient()
	if err != nil {
		log.Fatalf("Cannot create client to watch nodes: %v", err)
	}
	nodeStore := cache.NewStore(cache.MetaNamespaceKeyFunc)
	nodeLW := cache.NewListWatchFromClient(nodesClient, "nodes", api.NamespaceAll, fields.Everything())
	cache.NewReflector(nodeLW, &api.Node{}, nodeStore, s.nodeRelistPeriod).Run()

	lookupNode := func(hostName string) *api.Node {
		n, _, _ := nodeStore.GetByKey(hostName) // ignore error and return nil then
		if n == nil {
			return nil
		}
		return n.(*api.Node)
	}

	fcfs := podschedulers.NewFCFSPodScheduler(as, lookupNode)
	framework := framework.New(framework.Config{
		SchedulerConfig:   *sc,
		Executor:          executor,
		Client:            client,
		FailoverTimeout:   s.failoverTimeout,
		ReconcileInterval: s.reconcileInterval,
		ReconcileCooldown: s.reconcileCooldown,
		LookupNode:        lookupNode,
		StoreFrameworkId: func(id string) {
			// TODO(jdef): port FrameworkId store to generic Kubernetes config store as soon as available
			_, err := etcdClient.Set(meta.FrameworkIDKey, id, uint64(s.failoverTimeout))
			if err != nil {
				log.Errorf("failed to renew frameworkId TTL: %v", err)
			}
		},
	})

	masterUri := s.mesosMaster
//.........这里部分代码省略.........

func (s *SchedulerServer) bootstrap(hks hyperkube.Interface, sc *schedcfg.Config) (*ha.SchedulerProcess, ha.DriverFactory, etcd.Client, *mesos.ExecutorID) {
	s.frameworkName = strings.TrimSpace(s.frameworkName)
	if s.frameworkName == "" {
		log.Fatalf("framework-name must be a non-empty string")
	}
	s.frameworkWebURI = strings.TrimSpace(s.frameworkWebURI)

	metrics.Register()
	runtime.Register()
	s.mux.Handle("/metrics", prometheus.Handler())
	healthz.InstallHandler(s.mux)

	if len(s.etcdServerList) == 0 {
		log.Fatalf("specify --etcd-servers must be specified")
	}

	if len(s.apiServerList) < 1 {
		log.Fatal("No api servers specified.")
	}

	clientConfig, err := s.createAPIServerClientConfig()
	if err != nil {
		log.Fatalf("Unable to make apiserver client config: %v", err)
	}
	s.client, err = clientset.NewForConfig(clientConfig)
	if err != nil {
		log.Fatalf("Unable to make apiserver clientset: %v", err)
	}

	if s.reconcileCooldown < defaultReconcileCooldown {
		s.reconcileCooldown = defaultReconcileCooldown
		log.Warningf("user-specified reconcile cooldown too small, defaulting to %v", s.reconcileCooldown)
	}

	eiPrototype, err := s.prepareExecutorInfo(hks)
	if err != nil {
		log.Fatalf("misconfigured executor: %v", err)
	}

	// TODO(jdef): remove the dependency on etcd as soon as
	// (1) the generic config store is available for the FrameworkId storage
	// (2) the generic master election is provided by the apiserver
	// Compare docs/proposals/high-availability.md
	etcdClient, err := newEtcd(s.etcdServerList)
	if err != nil {
		log.Fatalf("misconfigured etcd: %v", err)
	}
	keysAPI := etcd.NewKeysAPI(etcdClient)

	// mirror all nodes into the nodeStore
	var eiRegistry executorinfo.Registry
	nodesClientConfig := *clientConfig
	nodesClient, err := clientset.NewForConfig(&nodesClientConfig)
	if err != nil {
		log.Fatalf("Cannot create client to watch nodes: %v", err)
	}
	nodeLW := cache.NewListWatchFromClient(nodesClient.CoreClient, "nodes", api.NamespaceAll, fields.Everything())
	nodeStore, nodeCtl := controllerfw.NewInformer(nodeLW, &api.Node{}, s.nodeRelistPeriod, &controllerfw.ResourceEventHandlerFuncs{
		DeleteFunc: func(obj interface{}) {
			if eiRegistry != nil {
				// TODO(jdef) use controllerfw.DeletionHandlingMetaNamespaceKeyFunc at some point?
				nodeName := ""
				if tombstone, ok := obj.(cache.DeletedFinalStateUnknown); ok {
					nodeName = tombstone.Key
				} else if node, ok := obj.(*api.Node); ok {
					nodeName = node.Name
				}
				if nodeName != "" {
					log.V(2).Infof("deleting node %q from registry", nodeName)
					eiRegistry.Invalidate(nodeName)
				}
			}
		},
	})

	lookupNode := func(hostName string) *api.Node {
		n, _, _ := nodeStore.GetByKey(hostName) // ignore error and return nil then
		if n == nil {
			return nil
		}
		return n.(*api.Node)
	}

	execInfoCache, err := executorinfo.NewCache(defaultExecutorInfoCacheSize)
	if err != nil {
		log.Fatalf("cannot create executorinfo cache: %v", err)
	}

	eiRegistry, err = executorinfo.NewRegistry(lookupNode, eiPrototype, execInfoCache)
	if err != nil {
		log.Fatalf("cannot create executorinfo registry: %v", err)
	}

	pr := podtask.NewDefaultProcurement(eiPrototype, eiRegistry)
	fcfs := podschedulers.NewFCFSPodScheduler(pr, lookupNode)
	frameworkIDStorage, err := s.frameworkIDStorage(keysAPI)
	if err != nil {
		log.Fatalf("cannot init framework ID storage: %v", err)
	}
	framework := framework.New(framework.Config{
//.........这里部分代码省略.........

func (s *SchedulerServer) bootstrap(hks hyperkube.Interface, sc *schedcfg.Config) (*ha.SchedulerProcess, ha.DriverFactory, etcd.Client, *mesos.ExecutorID) {
	s.frameworkName = strings.TrimSpace(s.frameworkName)
	if s.frameworkName == "" {
		log.Fatalf("framework-name must be a non-empty string")
	}
	s.frameworkWebURI = strings.TrimSpace(s.frameworkWebURI)

	metrics.Register()
	runtime.Register()
	s.mux.Handle("/metrics", prometheus.Handler())
	healthz.InstallHandler(s.mux)

	if len(s.etcdServerList) == 0 {
		log.Fatalf("specify --etcd-servers must be specified")
	}

	if len(s.apiServerList) < 1 {
		log.Fatal("No api servers specified.")
	}

	client, err := s.createAPIServerClient()
	if err != nil {
		log.Fatalf("Unable to make apiserver client: %v", err)
	}
	s.client = client

	if s.reconcileCooldown < defaultReconcileCooldown {
		s.reconcileCooldown = defaultReconcileCooldown
		log.Warningf("user-specified reconcile cooldown too small, defaulting to %v", s.reconcileCooldown)
	}

	eiPrototype, err := s.prepareExecutorInfo(hks)
	if err != nil {
		log.Fatalf("misconfigured executor: %v", err)
	}

	// TODO(jdef): remove the dependency on etcd as soon as
	// (1) the generic config store is available for the FrameworkId storage
	// (2) the generic master election is provided by the apiserver
	// Compare docs/proposals/high-availability.md
	etcdClient, err := newEtcd(s.etcdServerList)
	if err != nil {
		log.Fatalf("misconfigured etcd: %v", err)
	}
	keysAPI := etcd.NewKeysAPI(etcdClient)

	// mirror all nodes into the nodeStore
	var eiRegistry executorinfo.Registry
	nodesClient, err := s.createAPIServerClient()
	if err != nil {
		log.Fatalf("Cannot create client to watch nodes: %v", err)
	}
	nodeLW := cache.NewListWatchFromClient(nodesClient, "nodes", api.NamespaceAll, fields.Everything())
	nodeStore, nodeCtl := controllerfw.NewInformer(nodeLW, &api.Node{}, s.nodeRelistPeriod, &controllerfw.ResourceEventHandlerFuncs{
		DeleteFunc: func(obj interface{}) {
			node := obj.(*api.Node)
			if eiRegistry != nil {
				log.V(2).Infof("deleting node %q from registry", node.Name)
				eiRegistry.Invalidate(node.Name)
			}
		},
	})

	lookupNode := func(hostName string) *api.Node {
		n, _, _ := nodeStore.GetByKey(hostName) // ignore error and return nil then
		if n == nil {
			return nil
		}
		return n.(*api.Node)
	}

	execInfoCache, err := executorinfo.NewCache(defaultExecutorInfoCacheSize)
	if err != nil {
		log.Fatalf("cannot create executorinfo cache: %v", err)
	}

	eiRegistry, err = executorinfo.NewRegistry(lookupNode, eiPrototype, execInfoCache)
	if err != nil {
		log.Fatalf("cannot create executorinfo registry: %v", err)
	}

	pr := podtask.NewDefaultProcurement(eiPrototype, eiRegistry)
	fcfs := podschedulers.NewFCFSPodScheduler(pr, lookupNode)

	framework := framework.New(framework.Config{
		SchedulerConfig:   *sc,
		Client:            client,
		FailoverTimeout:   s.failoverTimeout,
		ReconcileInterval: s.reconcileInterval,
		ReconcileCooldown: s.reconcileCooldown,
		LookupNode:        lookupNode,
		StoreFrameworkId: func(id string) {
			// TODO(jdef): port FrameworkId store to generic Kubernetes config store as soon as available
			_, err := keysAPI.Set(context.TODO(), meta.FrameworkIDKey, id, &etcd.SetOptions{TTL: time.Duration(s.failoverTimeout) * time.Second})
			if err != nil {
				log.Errorf("failed to renew frameworkId TTL: %v", err)
			}
		},
		ExecutorId: eiPrototype.GetExecutorId(),
	})
//.........这里部分代码省略.........