Golang OneTermEqualSelector示例

说明

golang onetermequalselector示例是从最受好评的开源项目中提取的实现代码,你可以参考下面示例的使用方式。

编程语言: Golang

命名空间/包名称: k8s/io/kubernetes/pkg/fields

示例#1
文件: docker_registry_service.go 项目: Xmagicer/origin

// NewDockerRegistryServiceController returns a new *DockerRegistryServiceController.
func NewDockerRegistryServiceController(cl client.Interface, options DockerRegistryServiceControllerOptions) *DockerRegistryServiceController {
	e := &DockerRegistryServiceController{
		client:                cl,
		dockercfgController:   options.DockercfgController,
		registryLocationQueue: workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter()),
		secretsToUpdate:       workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter()),
		serviceName:           options.RegistryServiceName,
		serviceNamespace:      options.RegistryNamespace,
		dockerURLsIntialized:  options.DockerURLsIntialized,
	}

	e.serviceCache, e.serviceController = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(opts kapi.ListOptions) (runtime.Object, error) {
				opts.FieldSelector = fields.OneTermEqualSelector("metadata.name", options.RegistryServiceName)
				return e.client.Services(options.RegistryNamespace).List(opts)
			},
			WatchFunc: func(opts kapi.ListOptions) (watch.Interface, error) {
				opts.FieldSelector = fields.OneTermEqualSelector("metadata.name", options.RegistryServiceName)
				return e.client.Services(options.RegistryNamespace).Watch(opts)
			},
		},
		&kapi.Service{},
		options.Resync,
		framework.ResourceEventHandlerFuncs{
			AddFunc: func(obj interface{}) {
				e.enqueueRegistryLocationQueue()
			},
			UpdateFunc: func(old, cur interface{}) {
				e.enqueueRegistryLocationQueue()
			},
			DeleteFunc: func(obj interface{}) {
				e.enqueueRegistryLocationQueue()
			},
		},
	)
	e.servicesSynced = e.serviceController.HasSynced
	e.syncRegistryLocationHandler = e.syncRegistryLocationChange

	dockercfgOptions := kapi.ListOptions{FieldSelector: fields.SelectorFromSet(map[string]string{kapi.SecretTypeField: string(kapi.SecretTypeDockercfg)})}
	e.secretCache, e.secretController = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(opts kapi.ListOptions) (runtime.Object, error) {
				return e.client.Secrets(kapi.NamespaceAll).List(dockercfgOptions)
			},
			WatchFunc: func(opts kapi.ListOptions) (watch.Interface, error) {
				return e.client.Secrets(kapi.NamespaceAll).Watch(dockercfgOptions)
			},
		},
		&kapi.Secret{},
		options.Resync,
		framework.ResourceEventHandlerFuncs{},
	)
	e.secretsSynced = e.secretController.HasSynced
	e.syncSecretHandler = e.syncSecretUpdate

	return e
}

示例#2
文件: clusterpolicybinding_test.go 项目: erinboyd/origin

// TestClusterPolicyBindingListRespectingFields tests that a List() call, filtered with a field to the ReadOnlyClusterPolicyBindingCache
// will return all clusterPolicyBindings matching that field
func TestClusterPolicyBindingListRespectingFields(t *testing.T) {
	testCache, cacheChannel, testChannel := beforeTestingSetup_readonlyclusterpolicybindingcache()
	defer close(cacheChannel)

	var clusterPolicyBindings *authorizationapi.ClusterPolicyBindingList
	var err error

	name := "uniqueClusterPolicyBindingName"
	field := fields.OneTermEqualSelector("metadata.name", name)

	util.Until(func() {
		clusterPolicyBindings, err = testCache.List(&unversioned.ListOptions{FieldSelector: unversioned.FieldSelector{Selector: field}})

		if (err == nil) &&
			(clusterPolicyBindings != nil) &&
			(len(clusterPolicyBindings.Items) == 1) &&
			(clusterPolicyBindings.Items[0].Name == name) {
			close(testChannel)
		}
	}, 1*time.Millisecond, testChannel)

	switch {
	case err != nil:
		t.Errorf("Error getting clusterPolicyBinding with fieldSelector using ReadOnlyClusterBindingCache: %v", err)
	case clusterPolicyBindings == nil:
		t.Error("ClusterPolicyBindingList using fieldSelector is nil")
	case len(clusterPolicyBindings.Items) != 1:
		t.Errorf("Expected clusterPolicyBindingList using fieldSelector to contain 1 items, had %d", len(clusterPolicyBindings.Items))
	case clusterPolicyBindings.Items[0].Name != name:
		t.Errorf("Expected clusterPolicyBinding to have name '%s', had '%s'", name, clusterPolicyBindings.Items[0].Name)
	}
}

示例#3
文件: policybinding_test.go 项目: johnmccawley/origin

// TestPolicyBindingListRespectingFields tests that a List() call for some namespace, filtered with a field to the ReadOnlyPolicyBindingCache
// will return all policyBindings in that namespace matching that field
func TestPolicyBindingListRespectingFields(t *testing.T) {
	testCache, cacheChannel, testChannel := beforeTestingSetup_readonlypolicybindingcache()
	defer close(cacheChannel)

	var policyBindings *authorizationapi.PolicyBindingList
	var err error

	name := "uniquePolicyBindingName"
	namespace := "namespaceTwo"
	label := labels.Everything()
	field := fields.OneTermEqualSelector("metadata.name", name)

	util.Until(func() {
		policyBindings, err = testCache.List(label, field, namespace)

		if (err == nil) &&
			(policyBindings != nil) &&
			(len(policyBindings.Items) == 1) &&
			(policyBindings.Items[0].Name == name) {
			close(testChannel)
		}
	}, 1*time.Millisecond, testChannel)

	switch {
	case err != nil:
		t.Errorf("Error getting policyBindingList using ReadOnlyPolicyBindingCache: %v", err)
	case policyBindings == nil:
		t.Error("PolicyBindingList is nil.")
	case len(policyBindings.Items) != 1:
		t.Errorf("Expected policyBindingList to have 1 item, had %d", len(policyBindings.Items))
	case policyBindings.Items[0].Name != name:
		t.Errorf("Expected policyBinding name to be '%s', was '%s'", name, policyBindings.Items[0].Name)
	}
}

示例#4
文件: rest.go 项目: richm/origin

// WaitForRunningBuild waits until the specified build is no longer New or Pending. Returns true if
// the build ran within timeout, false if it did not, and an error if any other error state occurred.
// The last observed Build state is returned.
func WaitForRunningBuild(watcher rest.Watcher, ctx kapi.Context, build *api.Build, timeout time.Duration) (*api.Build, bool, error) {
	fieldSelector := fields.OneTermEqualSelector("metadata.name", build.Name)
	options := &kapi.ListOptions{FieldSelector: fieldSelector, ResourceVersion: build.ResourceVersion}
	w, err := watcher.Watch(ctx, options)
	if err != nil {
		return nil, false, err
	}
	defer w.Stop()

	ch := w.ResultChan()
	observed := build
	expire := time.After(timeout)
	for {
		select {
		case event := <-ch:
			obj, ok := event.Object.(*api.Build)
			if !ok {
				return observed, false, fmt.Errorf("received unknown object while watching for builds")
			}
			observed = obj

			switch obj.Status.Phase {
			case api.BuildPhaseRunning, api.BuildPhaseComplete, api.BuildPhaseFailed, api.BuildPhaseError, api.BuildPhaseCancelled:
				return observed, true, nil
			case api.BuildPhaseNew, api.BuildPhasePending:
			default:
				return observed, false, ErrUnknownBuildPhase
			}
		case <-expire:
			return observed, false, nil
		}
	}
}

示例#5
文件: master_utils.go 项目: siddharth20729/kubernetes

// StartPods check for numPods in TestNS. If they exist, it no-ops, otherwise it starts up
// a temp rc, scales it to match numPods, then deletes the rc leaving behind the pods.
func StartPods(numPods int, host string, restClient *client.Client) error {
	start := time.Now()
	defer func() {
		glog.Infof("StartPods took %v with numPods %d", time.Since(start), numPods)
	}()
	hostField := fields.OneTermEqualSelector(client.PodHost, host)
	pods, err := restClient.Pods(TestNS).List(labels.Everything(), hostField)
	if err != nil || len(pods.Items) == numPods {
		return err
	}
	glog.Infof("Found %d pods that match host %v, require %d", len(pods.Items), hostField, numPods)
	// For the sake of simplicity, assume all pods in TestNS have selectors matching TestRCManifest.
	controller := RCFromManifest(TestRCManifest)

	// Make the rc unique to the given host.
	controller.Spec.Replicas = numPods
	controller.Spec.Template.Spec.NodeName = host
	controller.Name = controller.Name + host
	controller.Spec.Selector["host"] = host
	controller.Spec.Template.Labels["host"] = host

	if rc, err := StartRC(controller, restClient); err != nil {
		return err
	} else {
		// Delete the rc, otherwise when we restart master components for the next benchmark
		// the rc controller will race with the pods controller in the rc manager.
		return restClient.ReplicationControllers(TestNS).Delete(rc.Name)
	}
}

示例#6
文件: nodecontroller.go 项目: wenhuizhang/kubernetes

// update ready status of all pods running on given node from master
// return true if success
func (nc *NodeController) markAllPodsNotReady(nodeName string) error {
	glog.V(2).Infof("Update ready status of pods on node [%v]", nodeName)
	opts := api.ListOptions{FieldSelector: fields.OneTermEqualSelector(client.PodHost, nodeName)}
	pods, err := nc.kubeClient.Core().Pods(api.NamespaceAll).List(opts)
	if err != nil {
		return err
	}

	errMsg := []string{}
	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}

		for i, cond := range pod.Status.Conditions {
			if cond.Type == api.PodReady {
				pod.Status.Conditions[i].Status = api.ConditionFalse
				glog.V(2).Infof("Updating ready status of pod %v to false", pod.Name)
				pod, err := nc.kubeClient.Core().Pods(pod.Namespace).UpdateStatus(&pod)
				if err != nil {
					glog.Warningf("Failed to updated status for pod %q: %v", format.Pod(pod), err)
					errMsg = append(errMsg, fmt.Sprintf("%v", err))
				}
				break
			}
		}
	}
	if len(errMsg) == 0 {
		return nil
	}
	return fmt.Errorf("%v", strings.Join(errMsg, "; "))
}

示例#7
文件: nodecontroller.go 项目: rageshkrishna/kubernetes

// deletePods will delete all pods from master running on given node, and return true
// if any pods were deleted.
func (nc *NodeController) deletePods(nodeName string) (bool, error) {
	remaining := false
	pods, err := nc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), fields.OneTermEqualSelector(client.PodHost, nodeName))
	if err != nil {
		return remaining, err
	}

	if len(pods.Items) > 0 {
		nc.recordNodeEvent(nodeName, "DeletingAllPods", fmt.Sprintf("Deleting all Pods from Node %v.", nodeName))
	}

	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}
		// if the pod has already been deleted, ignore it
		if pod.DeletionGracePeriodSeconds != nil {
			continue
		}

		glog.V(2).Infof("Starting deletion of pod %v", pod.Name)
		nc.recorder.Eventf(&pod, "NodeControllerEviction", "Marking for deletion Pod %s from Node %s", pod.Name, nodeName)
		if err := nc.kubeClient.Pods(pod.Namespace).Delete(pod.Name, nil); err != nil {
			return false, err
		}
		remaining = true
	}
	return remaining, nil
}

示例#8
文件: create_dockercfg_secrets.go 项目: xgwang-zte/origin

// NewDockercfgController returns a new *DockercfgController.
func NewDockercfgController(cl kclientset.Interface, options DockercfgControllerOptions) *DockercfgController {
	e := &DockercfgController{
		client:               cl,
		queue:                workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter()),
		dockerURLsIntialized: options.DockerURLsIntialized,
	}

	var serviceAccountCache cache.Store
	serviceAccountCache, e.serviceAccountController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				return e.client.Core().ServiceAccounts(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return e.client.Core().ServiceAccounts(api.NamespaceAll).Watch(options)
			},
		},
		&api.ServiceAccount{},
		options.Resync,
		cache.ResourceEventHandlerFuncs{
			AddFunc: func(obj interface{}) {
				serviceAccount := obj.(*api.ServiceAccount)
				glog.V(5).Infof("Adding service account %s", serviceAccount.Name)
				e.enqueueServiceAccount(serviceAccount)
			},
			UpdateFunc: func(old, cur interface{}) {
				serviceAccount := cur.(*api.ServiceAccount)
				glog.V(5).Infof("Updating service account %s", serviceAccount.Name)
				// Resync on service object relist.
				e.enqueueServiceAccount(serviceAccount)
			},
		},
	)
	e.serviceAccountCache = NewEtcdMutationCache(serviceAccountCache)

	tokenSecretSelector := fields.OneTermEqualSelector(api.SecretTypeField, string(api.SecretTypeServiceAccountToken))
	e.secretCache, e.secretController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				options.FieldSelector = tokenSecretSelector
				return e.client.Core().Secrets(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				options.FieldSelector = tokenSecretSelector
				return e.client.Core().Secrets(api.NamespaceAll).Watch(options)
			},
		},
		&api.Secret{},
		options.Resync,
		cache.ResourceEventHandlerFuncs{
			AddFunc:    func(cur interface{}) { e.handleTokenSecretUpdate(nil, cur) },
			UpdateFunc: func(old, cur interface{}) { e.handleTokenSecretUpdate(old, cur) },
			DeleteFunc: e.handleTokenSecretDelete,
		},
	)

	e.syncHandler = e.syncServiceAccount

	return e
}

示例#9
文件: nodecontroller.go 项目: rageshkrishna/kubernetes

// returns true if the provided node still has pods scheduled to it, or an error if
// the server could not be contacted.
func (nc *NodeController) hasPods(nodeName string) (bool, error) {
	pods, err := nc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(), fields.OneTermEqualSelector(client.PodHost, nodeName))
	if err != nil {
		return false, err
	}
	return len(pods.Items) > 0, nil
}

示例#10
文件: scale.go 项目: AdoHe/kubernetes

// Scale updates a ReplicationController to a new size, with optional precondition check (if preconditions is not nil),
// optional retries (if retry is not nil), and then optionally waits for it's replica count to reach the new value
// (if wait is not nil).
func (scaler *ReplicationControllerScaler) Scale(namespace, name string, newSize uint, preconditions *ScalePrecondition, retry, waitForReplicas *RetryParams) error {
	if preconditions == nil {
		preconditions = &ScalePrecondition{-1, ""}
	}
	if retry == nil {
		// Make it try only once, immediately
		retry = &RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
	}
	cond := ScaleCondition(scaler, preconditions, namespace, name, newSize)
	if err := wait.PollImmediate(retry.Interval, retry.Timeout, cond); err != nil {
		return err
	}
	if waitForReplicas != nil {
		watchOptions := api.ListOptions{FieldSelector: fields.OneTermEqualSelector("metadata.name", name), ResourceVersion: "0"}
		watcher, err := scaler.c.ReplicationControllers(namespace).Watch(watchOptions)
		if err != nil {
			return err
		}
		_, err = watch.Until(waitForReplicas.Timeout, watcher, func(event watch.Event) (bool, error) {
			if event.Type != watch.Added && event.Type != watch.Modified {
				return false, nil
			}

			rc := event.Object.(*api.ReplicationController)
			return rc.Status.ObservedGeneration >= rc.Generation && rc.Status.Replicas == rc.Spec.Replicas, nil
		})
		if err == wait.ErrWaitTimeout {
			return fmt.Errorf("timed out waiting for %q to be synced", name)
		}
		return err
	}
	return nil
}

示例#11
文件: clusterpolicy_test.go 项目: rusenask/origin

// TestClusterPolicyListRespectingFields tests that a List() call, filtered with a field to the ReadOnlyClusterPolicyCache
// will return all clusterPolicies matching that field
func TestClusterPolicyListRespectingFields(t *testing.T) {
	testCache, cacheChannel, testChannel := beforeTestingSetup_readonlyclusterpolicycache()
	defer close(cacheChannel)

	var clusterPolicies *authorizationapi.ClusterPolicyList
	var err error

	name := "uniqueClusterPolicyName"
	label := labels.Everything()
	field := fields.OneTermEqualSelector("metadata.name", name)

	util.Until(func() {
		clusterPolicies, err = testCache.List(label, field)

		if (err == nil) &&
			(clusterPolicies != nil) &&
			(len(clusterPolicies.Items) == 1) &&
			(clusterPolicies.Items[0].Name == name) {
			close(testChannel)
		}
	}, 1*time.Millisecond, testChannel)

	switch {
	case err != nil:
		t.Errorf("Error getting clusterPolicyList with fieldSelector using ReadOnlyClusterPolicyCache: %v", err)
	case clusterPolicies == nil:
		t.Error("ClusterPolicyList is nil.")
	case len(clusterPolicies.Items) != 1:
		t.Errorf("Expected clusterPolicyList to contain 2 clusterPolicies, contained %d", len(clusterPolicies.Items))
	case clusterPolicies.Items[0].Name != name:
		t.Errorf("Expected field-selected clusterPolicy name to be '%s', was '%s'", name, clusterPolicies.Items[0].Name)
	}
}

示例#12
文件: deleted_dockercfg_secrets.go 项目: richm/origin

// NewDockercfgDeletedController returns a new *DockercfgDeletedController.
func NewDockercfgDeletedController(cl client.Interface, options DockercfgDeletedControllerOptions) *DockercfgDeletedController {
	e := &DockercfgDeletedController{
		client: cl,
	}

	dockercfgSelector := fields.OneTermEqualSelector(client.SecretType, string(api.SecretTypeDockercfg))
	_, e.secretController = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				opts := api.ListOptions{FieldSelector: dockercfgSelector}
				return e.client.Secrets(api.NamespaceAll).List(opts)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				opts := api.ListOptions{FieldSelector: dockercfgSelector, ResourceVersion: options.ResourceVersion}
				return e.client.Secrets(api.NamespaceAll).Watch(opts)
			},
		},
		&api.Secret{},
		options.Resync,
		framework.ResourceEventHandlerFuncs{
			DeleteFunc: e.secretDeleted,
		},
	)

	return e
}

示例#13
文件: policy_test.go 项目: RomainVabre/origin

// TestPolicyListRespectingFields tests that a List() call for some namespace, filtered with a field to the ReadOnlyPolicyCache
// will return all policies in that namespace matching that field
func TestPolicyListRespectingFields(t *testing.T) {
	testCache, cacheChannel, testChannel := beforeTestingSetup_readonlypolicycache()
	defer close(cacheChannel)

	var policies *authorizationapi.PolicyList
	var err error

	name := "uniquePolicyName"
	namespace := "namespaceTwo"
	field := fields.OneTermEqualSelector("metadata.name", name)

	utilwait.Until(func() {
		policies, err = testCache.List(&kapi.ListOptions{FieldSelector: field}, namespace)

		if (err == nil) &&
			(policies != nil) &&
			(len(policies.Items) == 1) &&
			(policies.Items[0].Name == name) {
			close(testChannel)
		}
	}, 1*time.Millisecond, testChannel)

	switch {
	case err != nil:
		t.Errorf("Error getting policies using ReadOnlyPolicyCache: %v", err)
	case policies == nil:
		t.Error("PoliciesList is nil")
	case len(policies.Items) != 1:
		t.Errorf("Expected policyList to have 1 policy, had %d", len(policies.Items))
	case policies.Items[0].Name != name:
		t.Errorf("Expected policy name to be '%s', was '%s'", name, policies.Items[0].Name)
	}
}

示例#14
文件: nodecontroller.go 项目: wenhuizhang/kubernetes

// returns true if the provided node still has pods scheduled to it, or an error if
// the server could not be contacted.
func (nc *NodeController) hasPods(nodeName string) (bool, error) {
	selector := fields.OneTermEqualSelector(client.PodHost, nodeName)
	options := api.ListOptions{FieldSelector: selector}
	pods, err := nc.kubeClient.Core().Pods(api.NamespaceAll).List(options)
	if err != nil {
		return false, err
	}
	return len(pods.Items) > 0, nil
}

示例#15
文件: scale.go 项目: alex-mohr/kubernetes

// Scale updates a ReplicationController to a new size, with optional precondition check (if preconditions is not nil),
// optional retries (if retry is not nil), and then optionally waits for it's replica count to reach the new value
// (if wait is not nil).
func (scaler *ReplicationControllerScaler) Scale(namespace, name string, newSize uint, preconditions *ScalePrecondition, retry, waitForReplicas *RetryParams) error {
	if preconditions == nil {
		preconditions = &ScalePrecondition{-1, ""}
	}
	if retry == nil {
		// Make it try only once, immediately
		retry = &RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
	}
	var updatedResourceVersion string
	cond := ScaleCondition(scaler, preconditions, namespace, name, newSize, &updatedResourceVersion)
	if err := wait.PollImmediate(retry.Interval, retry.Timeout, cond); err != nil {
		return err
	}
	if waitForReplicas != nil {
		checkRC := func(rc *api.ReplicationController) bool {
			if uint(rc.Spec.Replicas) != newSize {
				// the size is changed by other party. Don't need to wait for the new change to complete.
				return true
			}
			return rc.Status.ObservedGeneration >= rc.Generation && rc.Status.Replicas == rc.Spec.Replicas
		}
		// If number of replicas doesn't change, then the update may not event
		// be sent to underlying databse (we don't send no-op changes).
		// In such case, <updatedResourceVersion> will have value of the most
		// recent update (which may be far in the past) so we may get "too old
		// RV" error from watch or potentially no ReplicationController events
		// will be deliver, since it may already be in the expected state.
		// To protect from these two, we first issue Get() to ensure that we
		// are not already in the expected state.
		currentRC, err := scaler.c.ReplicationControllers(namespace).Get(name, metav1.GetOptions{})
		if err != nil {
			return err
		}
		if !checkRC(currentRC) {
			watchOptions := api.ListOptions{
				FieldSelector:   fields.OneTermEqualSelector("metadata.name", name),
				ResourceVersion: updatedResourceVersion,
			}
			watcher, err := scaler.c.ReplicationControllers(namespace).Watch(watchOptions)
			if err != nil {
				return err
			}
			_, err = watch.Until(waitForReplicas.Timeout, watcher, func(event watch.Event) (bool, error) {
				if event.Type != watch.Added && event.Type != watch.Modified {
					return false, nil
				}
				return checkRC(event.Object.(*api.ReplicationController)), nil
			})
			if err == wait.ErrWaitTimeout {
				return fmt.Errorf("timed out waiting for %q to be synced", name)
			}
			return err
		}
	}
	return nil
}

示例#16
文件: opaque_resource.go 项目: eljefedelrodeodeljefe/kubernetes

// Returns true if a node update matching the predicate was emitted from the
// system after performing the supplied action.
func observeNodeUpdateAfterAction(f *framework.Framework, nodeName string, nodePredicate func(*api.Node) bool, action func() error) (bool, error) {
	observedMatchingNode := false
	nodeSelector := fields.OneTermEqualSelector("metadata.name", nodeName)
	informerStartedChan := make(chan struct{})
	var informerStartedGuard sync.Once

	_, controller := cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				options.FieldSelector = nodeSelector
				ls, err := f.ClientSet.Core().Nodes().List(options)
				return ls, err
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				options.FieldSelector = nodeSelector
				w, err := f.ClientSet.Core().Nodes().Watch(options)
				// Signal parent goroutine that watching has begun.
				informerStartedGuard.Do(func() { close(informerStartedChan) })
				return w, err
			},
		},
		&api.Node{},
		0,
		cache.ResourceEventHandlerFuncs{
			UpdateFunc: func(oldObj, newObj interface{}) {
				n, ok := newObj.(*api.Node)
				Expect(ok).To(Equal(true))
				if nodePredicate(n) {
					observedMatchingNode = true
				}
			},
		},
	)

	// Start the informer and block this goroutine waiting for the started signal.
	informerStopChan := make(chan struct{})
	defer func() { close(informerStopChan) }()
	go controller.Run(informerStopChan)
	<-informerStartedChan

	// Invoke the action function.
	err := action()
	if err != nil {
		return false, err
	}

	// Poll whether the informer has found a matching node update with a timeout.
	// Wait up 2 minutes polling every second.
	timeout := 2 * time.Minute
	interval := 1 * time.Second
	err = wait.Poll(interval, timeout, func() (bool, error) {
		return observedMatchingNode, nil
	})
	return err == nil, err
}

示例#17
文件: controller_utils.go 项目: Q-Lee/kubernetes

// deletePods will delete all pods from master running on given node, and return true
// if any pods were deleted, or were found pending deletion.
func deletePods(kubeClient clientset.Interface, recorder record.EventRecorder, nodeName, nodeUID string, daemonStore cache.StoreToDaemonSetLister) (bool, error) {
	remaining := false
	selector := fields.OneTermEqualSelector(api.PodHostField, nodeName)
	options := api.ListOptions{FieldSelector: selector}
	pods, err := kubeClient.Core().Pods(api.NamespaceAll).List(options)
	var updateErrList []error

	if err != nil {
		return remaining, err
	}

	if len(pods.Items) > 0 {
		recordNodeEvent(recorder, nodeName, nodeUID, api.EventTypeNormal, "DeletingAllPods", fmt.Sprintf("Deleting all Pods from Node %v.", nodeName))
	}

	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}

		// Set reason and message in the pod object.
		if _, err = setPodTerminationReason(kubeClient, &pod, nodeName); err != nil {
			if errors.IsConflict(err) {
				updateErrList = append(updateErrList,
					fmt.Errorf("update status failed for pod %q: %v", format.Pod(&pod), err))
				continue
			}
		}
		// if the pod has already been marked for deletion, we still return true that there are remaining pods.
		if pod.DeletionGracePeriodSeconds != nil {
			remaining = true
			continue
		}
		// if the pod is managed by a daemonset, ignore it
		_, err := daemonStore.GetPodDaemonSets(&pod)
		if err == nil { // No error means at least one daemonset was found
			continue
		}

		glog.V(2).Infof("Starting deletion of pod %v", pod.Name)
		recorder.Eventf(&pod, api.EventTypeNormal, "NodeControllerEviction", "Marking for deletion Pod %s from Node %s", pod.Name, nodeName)
		if err := kubeClient.Core().Pods(pod.Namespace).Delete(pod.Name, nil); err != nil {
			return false, err
		}
		remaining = true
	}

	if len(updateErrList) > 0 {
		return false, utilerrors.NewAggregate(updateErrList)
	}
	return remaining, nil
}

示例#18
文件: controller_utils.go 项目: juanluisvaladas/origin

// terminatePods will ensure all pods on the given node that are in terminating state are eventually
// cleaned up. Returns true if the node has no pods in terminating state, a duration that indicates how
// long before we should check again (the next deadline for a pod to complete), or an error.
func terminatePods(kubeClient clientset.Interface, recorder record.EventRecorder, nodeName string, nodeUID string, since time.Time, maxGracePeriod time.Duration) (bool, time.Duration, error) {
	// the time before we should try again
	nextAttempt := time.Duration(0)
	// have we deleted all pods
	complete := true

	selector := fields.OneTermEqualSelector(api.PodHostField, nodeName)
	options := api.ListOptions{FieldSelector: selector}
	pods, err := kubeClient.Core().Pods(api.NamespaceAll).List(options)
	if err != nil {
		return false, nextAttempt, err
	}

	now := time.Now()
	elapsed := now.Sub(since)
	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}
		// only clean terminated pods
		if pod.DeletionGracePeriodSeconds == nil {
			continue
		}

		// the user's requested grace period
		grace := time.Duration(*pod.DeletionGracePeriodSeconds) * time.Second
		if grace > maxGracePeriod {
			grace = maxGracePeriod
		}

		// the time remaining before the pod should have been deleted
		remaining := grace - elapsed
		if remaining < 0 {
			remaining = 0
			glog.V(2).Infof("Removing pod %v after %s grace period", pod.Name, grace)
			recordNodeEvent(recorder, nodeName, nodeUID, api.EventTypeNormal, "TerminatingEvictedPod", fmt.Sprintf("Pod %s has exceeded the grace period for deletion after being evicted from Node %q and is being force killed", pod.Name, nodeName))
			if err := kubeClient.Core().Pods(pod.Namespace).Delete(pod.Name, api.NewDeleteOptions(0)); err != nil {
				glog.Errorf("Error completing deletion of pod %s: %v", pod.Name, err)
				complete = false
			}
		} else {
			glog.V(2).Infof("Pod %v still terminating, requested grace period %s, %s remaining", pod.Name, grace, remaining)
			complete = false
		}

		if nextAttempt < remaining {
			nextAttempt = remaining
		}
	}
	return complete, nextAttempt, nil
}

示例#19
文件: client.go 项目: LalatenduMohanty/origin

func GetClientForServiceAccount(adminClient *kclientset.Clientset, clientConfig restclient.Config, namespace, name string) (*client.Client, *kclientset.Clientset, *restclient.Config, error) {
	_, err := adminClient.Core().Namespaces().Create(&kapi.Namespace{ObjectMeta: kapi.ObjectMeta{Name: namespace}})
	if err != nil && !kerrs.IsAlreadyExists(err) {
		return nil, nil, nil, err
	}

	sa, err := adminClient.Core().ServiceAccounts(namespace).Create(&kapi.ServiceAccount{ObjectMeta: kapi.ObjectMeta{Name: name}})
	if kerrs.IsAlreadyExists(err) {
		sa, err = adminClient.Core().ServiceAccounts(namespace).Get(name)
	}
	if err != nil {
		return nil, nil, nil, err
	}

	token := ""
	err = wait.Poll(time.Second, 30*time.Second, func() (bool, error) {
		selector := fields.OneTermEqualSelector(kapi.SecretTypeField, string(kapi.SecretTypeServiceAccountToken))
		secrets, err := adminClient.Core().Secrets(namespace).List(kapi.ListOptions{FieldSelector: selector})
		if err != nil {
			return false, err
		}
		for _, secret := range secrets.Items {
			if serviceaccounts.IsValidServiceAccountToken(sa, &secret) {
				token = string(secret.Data[kapi.ServiceAccountTokenKey])
				return true, nil
			}
		}
		return false, nil
	})
	if err != nil {
		return nil, nil, nil, err
	}

	saClientConfig := clientcmd.AnonymousClientConfig(&clientConfig)
	saClientConfig.BearerToken = token

	kubeClient, err := kclient.New(&saClientConfig)
	if err != nil {
		return nil, nil, nil, err
	}
	kubeClientset := adapter.FromUnversionedClient(kubeClient)

	osClient, err := client.New(&saClientConfig)
	if err != nil {
		return nil, nil, nil, err
	}

	return osClient, kubeClientset, &saClientConfig, nil
}

示例#20
文件: service.go 项目: ethernetdan/kubernetes

// Run runs the specified KubeletExecutorServer.
func (s *KubeletExecutorServer) Run(hks hyperkube.Interface, _ []string) error {
	// create shared channels
	kubeletFinished := make(chan struct{})
	nodeInfos := make(chan executor.NodeInfo, 1)

	// create static pods directory
	staticPodsConfigPath := filepath.Join(s.RootDirectory, "static-pods")
	err := os.Mkdir(staticPodsConfigPath, 0750)
	if err != nil {
		return err
	}

	// we're expecting that either Mesos or the minion process will set this for us
	s.containerID = os.Getenv(envContainerID)
	if s.containerID == "" {
		log.Warningf("missing expected environment variable %q", envContainerID)
	}

	// create apiserver client
	var apiclient *clientset.Clientset
	clientConfig, err := kubeletapp.CreateAPIServerClientConfig(s.KubeletServer)
	if err == nil {
		apiclient, err = clientset.NewForConfig(clientConfig)
	}
	if err != nil {
		// required for k8sm since we need to send api.Binding information back to the apiserver
		return fmt.Errorf("cannot create API client: %v", err)
	}

	var (
		pw = cache.NewListWatchFromClient(apiclient.CoreClient, "pods", api.NamespaceAll,
			fields.OneTermEqualSelector(client.PodHost, s.HostnameOverride),
		)
		reg = executor.NewRegistry(apiclient)
	)

	// start executor
	var executorDone <-chan struct{}
	executorDone, err = s.runExecutor(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, reg)
	if err != nil {
		return err
	}

	// start kubelet, blocking
	return s.runKubelet(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, pw, reg, executorDone)
}

示例#21
文件: deleted_token_secrets.go 项目: richm/origin

// findDockercfgSecret checks all the secrets in the namespace to see if the token secret has any existing dockercfg secrets that reference it
func (e *DockercfgTokenDeletedController) findDockercfgSecrets(tokenSecret *api.Secret) ([]*api.Secret, error) {
	dockercfgSecrets := []*api.Secret{}

	options := api.ListOptions{FieldSelector: fields.OneTermEqualSelector(client.SecretType, string(api.SecretTypeDockercfg))}
	potentialSecrets, err := e.client.Secrets(tokenSecret.Namespace).List(options)
	if err != nil {
		return nil, err
	}

	for i, currSecret := range potentialSecrets.Items {
		if currSecret.Annotations[ServiceAccountTokenSecretNameKey] == tokenSecret.Name {
			dockercfgSecrets = append(dockercfgSecrets, &potentialSecrets.Items[i])
		}
	}

	return dockercfgSecrets, nil
}

示例#22
文件: buildpod_admission_test.go 项目: jmashburn/origin

func runBuildPodAdmissionTest(t *testing.T, client *client.Client, kclient *kclient.Client, build *buildapi.Build) (*buildapi.Build, *kapi.Pod) {

	ns := testutil.Namespace()
	_, err := client.Builds(ns).Create(build)
	if err != nil {
		t.Fatalf("%v", err)
	}

	watchOpt := kapi.ListOptions{
		FieldSelector: fields.OneTermEqualSelector(
			"metadata.name",
			buildutil.GetBuildPodName(build),
		),
	}
	podWatch, err := kclient.Pods(ns).Watch(watchOpt)
	if err != nil {
		t.Fatalf("%v", err)
	}
	type resultObjs struct {
		build *buildapi.Build
		pod   *kapi.Pod
	}
	result := make(chan resultObjs)
	defer podWatch.Stop()
	go func() {
		for e := range podWatch.ResultChan() {
			if e.Type == watchapi.Added {
				pod, ok := e.Object.(*kapi.Pod)
				if !ok {
					t.Fatalf("unexpected object: %v", e.Object)
				}
				build := (*buildtestutil.TestPod)(pod).GetBuild(t)
				result <- resultObjs{build: build, pod: pod}
			}
		}
	}()

	select {
	case <-time.After(buildPodAdmissionTestTimeout):
		t.Fatalf("timed out after %v", buildPodAdmissionTestTimeout)
	case objs := <-result:
		return objs.build, objs.pod
	}
	return nil, nil
}

示例#23
文件: lifecycle.go 项目: urashidmalik/origin

// NewPodWatch creates a pod watching function which is backed by a
// FIFO/reflector pair. This avoids managing watches directly.
// A stop channel to close the watch's reflector is also returned.
// It is the caller's responsibility to defer closing the stop channel to prevent leaking resources.
func NewPodWatch(client kclient.Interface, namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
	fieldSelector := fields.OneTermEqualSelector("metadata.name", name)
	podLW := &deployutil.ListWatcherImpl{
		ListFunc: func() (runtime.Object, error) {
			return client.Pods(namespace).List(labels.Everything(), fieldSelector)
		},
		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
			return client.Pods(namespace).Watch(labels.Everything(), fieldSelector, resourceVersion)
		},
	}

	queue := cache.NewFIFO(cache.MetaNamespaceKeyFunc)
	cache.NewReflector(podLW, &kapi.Pod{}, queue, 1*time.Minute).RunUntil(stopChannel)

	return func() *kapi.Pod {
		obj := queue.Pop()
		return obj.(*kapi.Pod)
	}
}

示例#24
文件: nodecontroller.go 项目: Vitamen/kubernetes

// terminatePods will ensure all pods on the given node that are in terminating state are eventually
// cleaned up
func (nc *NodeController) terminatePods(nodeID string, since time.Time) (time.Duration, error) {
	remaining := time.Duration(0)
	glog.V(2).Infof("Terminating all pods on %s", nodeID)
	pods, err := nc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(),
		fields.OneTermEqualSelector(client.PodHost, nodeID))
	if err != nil {
		return remaining, err
	}

	nc.recordNodeEvent(nodeID, "TerminatingAllPods", fmt.Sprintf("Terminating all Pods on Node %s.", nodeID))

	now := time.Now()
	elapsed := now.Sub(since)
	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeID {
			continue
		}
		// only clean terminated pods
		if pod.DeletionGracePeriodSeconds == nil {
			continue
		}

		grace := time.Duration(*pod.DeletionGracePeriodSeconds) * time.Second
		if grace > nc.maximumGracePeriod {
			grace = nc.maximumGracePeriod
		}
		next := grace - elapsed
		if next < 0 {
			glog.V(2).Infof("Removing pod %v after %s grace period", pod.Name, grace)
			nc.recordNodeEvent(nodeID, "TerminatingEvictedPod", fmt.Sprintf("Pod %s has exceeded the grace period for deletion after being evicted from Node %q and is being force killed", pod.Name, nodeID))
			if err := nc.kubeClient.Pods(pod.Namespace).Delete(pod.Name, api.NewDeleteOptions(0)); err != nil {
				glog.Errorf("Error completing deletion of pod %s: %v", pod.Name, err)
				next = 1
			}
		}
		if remaining < next {
			remaining = next
		}
	}
	return remaining, nil
}

示例#25
文件: controller_utils.go 项目: juanluisvaladas/origin

// forcefullyDeleteNode immediately deletes all pods on the node, and then
// deletes the node itself.
func forcefullyDeleteNode(kubeClient clientset.Interface, nodeName string, forcefulDeletePodFunc func(*api.Pod) error) error {
	selector := fields.OneTermEqualSelector(api.PodHostField, nodeName)
	options := api.ListOptions{FieldSelector: selector}
	pods, err := kubeClient.Core().Pods(api.NamespaceAll).List(options)
	if err != nil {
		return fmt.Errorf("unable to list pods on node %q: %v", nodeName, err)
	}
	for _, pod := range pods.Items {
		if pod.Spec.NodeName != nodeName {
			continue
		}
		if err := forcefulDeletePodFunc(&pod); err != nil {
			return fmt.Errorf("unable to delete pod %q on node %q: %v", pod.Name, nodeName, err)
		}
	}
	if err := kubeClient.Core().Nodes().Delete(nodeName, nil); err != nil {
		return fmt.Errorf("unable to delete node %q: %v", nodeName, err)
	}
	return nil
}

示例#26
文件: controller_utils.go 项目: juanluisvaladas/origin

// update ready status of all pods running on given node from master
// return true if success
func markAllPodsNotReady(kubeClient clientset.Interface, node *api.Node) error {
	// Don't set pods to NotReady if the kubelet is running a version that
	// doesn't understand how to correct readiness.
	// TODO: Remove this check when we no longer guarantee backward compatibility
	// with node versions < 1.2.0.
	if nodeRunningOutdatedKubelet(node) {
		return nil
	}
	nodeName := node.Name
	glog.V(2).Infof("Update ready status of pods on node [%v]", nodeName)
	opts := api.ListOptions{FieldSelector: fields.OneTermEqualSelector(api.PodHostField, nodeName)}
	pods, err := kubeClient.Core().Pods(api.NamespaceAll).List(opts)
	if err != nil {
		return err
	}

	errMsg := []string{}
	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}

		for i, cond := range pod.Status.Conditions {
			if cond.Type == api.PodReady {
				pod.Status.Conditions[i].Status = api.ConditionFalse
				glog.V(2).Infof("Updating ready status of pod %v to false", pod.Name)
				_, err := kubeClient.Core().Pods(pod.Namespace).UpdateStatus(&pod)
				if err != nil {
					glog.Warningf("Failed to update status for pod %q: %v", format.Pod(&pod), err)
					errMsg = append(errMsg, fmt.Sprintf("%v", err))
				}
				break
			}
		}
	}
	if len(errMsg) == 0 {
		return nil
	}
	return fmt.Errorf("%v", strings.Join(errMsg, "; "))
}

示例#27
文件: master_benchmark_test.go 项目: Q-Lee/kubernetes

// Benchmark pod listing by waiting on `Tasks` listers to list `Pods` pods via `Workers`.
func BenchmarkPodList(b *testing.B) {
	b.StopTimer()
	m := framework.NewMasterComponents(&framework.Config{nil, true, false, 250.0, 500})
	defer m.Stop(true, true)

	ns := framework.CreateTestingNamespace("benchmark-pod-list", s, t)
	defer framework.DeleteTestingNamespace(ns, s, t)

	numPods, numTasks, iter := getPods(b.N), getTasks(b.N), getIterations(b.N)
	podsPerNode := numPods / numTasks
	if podsPerNode < 1 {
		podsPerNode = 1
	}
	glog.Infof("Starting benchmark: b.N %d, pods %d, workers %d, podsPerNode %d",
		b.N, numPods, numTasks, podsPerNode)

	startPodsOnNodes(ns.Name, numPods, numTasks, m.RestClient)
	// Stop the rc manager so it doesn't steal resources
	m.Stop(false, true)

	b.StartTimer()
	for i := 0; i < iter; i++ {
		framework.RunParallel(func(id int) error {
			host := fmt.Sprintf("host.%d", id)
			now := time.Now()
			defer func() {
				glog.V(3).Infof("Worker %d: Node %v listing pods took %v", id, host, time.Since(now))
			}()
			if pods, err := m.ClientSet.Core().Pods(ns.Name).List(api.ListOptions{
				LabelSelector: labels.Everything(),
				FieldSelector: fields.OneTermEqualSelector(api.PodHostField, host),
			}); err != nil {
				return err
			} else if len(pods.Items) < podsPerNode {
				glog.Fatalf("List retrieved %d pods, which is less than %d", len(pods.Items), podsPerNode)
			}
			return nil
		}, numTasks, Workers)
	}
	b.StopTimer()
}

示例#28
文件: lifecycle.go 项目: LalatenduMohanty/origin

// NewPodWatch creates a pod watching function which is backed by a
// FIFO/reflector pair. This avoids managing watches directly.
// A stop channel to close the watch's reflector is also returned.
// It is the caller's responsibility to defer closing the stop channel to prevent leaking resources.
func NewPodWatch(client kcoreclient.PodInterface, namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
	fieldSelector := fields.OneTermEqualSelector("metadata.name", name)
	podLW := &cache.ListWatch{
		ListFunc: func(options kapi.ListOptions) (runtime.Object, error) {
			options.FieldSelector = fieldSelector
			return client.List(options)
		},
		WatchFunc: func(options kapi.ListOptions) (watch.Interface, error) {
			options.FieldSelector = fieldSelector
			return client.Watch(options)
		},
	}

	queue := cache.NewResyncableFIFO(cache.MetaNamespaceKeyFunc)
	cache.NewReflector(podLW, &kapi.Pod{}, queue, 1*time.Minute).RunUntil(stopChannel)

	return func() *kapi.Pod {
		obj := cache.Pop(queue)
		return obj.(*kapi.Pod)
	}
}

示例#29
文件: service.go 项目: mjg59/kubernetes

// Run runs the specified KubeletExecutorServer.
func (s *KubeletExecutorServer) Run(hks hyperkube.Interface, _ []string) error {
	// create shared channels
	kubeletFinished := make(chan struct{})
	nodeInfos := make(chan executor.NodeInfo, 1)

	// create static pods directory
	staticPodsConfigPath := filepath.Join(s.RootDirectory, "static-pods")
	err := os.Mkdir(staticPodsConfigPath, 0750)
	if err != nil {
		return err
	}

	// create apiserver client
	var apiclient *client.Client
	clientConfig, err := kubeletapp.CreateAPIServerClientConfig(s.KubeletServer)
	if err == nil {
		apiclient, err = client.New(clientConfig)
	}
	if err != nil {
		// required for k8sm since we need to send api.Binding information back to the apiserver
		return fmt.Errorf("cannot create API client: %v", err)
	}

	var (
		pw = cache.NewListWatchFromClient(apiclient, "pods", api.NamespaceAll,
			fields.OneTermEqualSelector(client.PodHost, s.HostnameOverride),
		)
		reg = executor.NewRegistry(apiclient)
	)

	// start executor
	var executorDone <-chan struct{}
	executorDone, err = s.runExecutor(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, reg)
	if err != nil {
		return err
	}

	// start kubelet, blocking
	return s.runKubelet(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, pw, reg, executorDone)
}

示例#30
文件: nodecontroller.go 项目: shrids/kubernetes

// deletePods will delete all pods from master running on given node.
func (nc *NodeController) deletePods(nodeID string) error {
	glog.V(2).Infof("Delete all pods from %v", nodeID)
	pods, err := nc.kubeClient.Pods(api.NamespaceAll).List(labels.Everything(),
		fields.OneTermEqualSelector(client.PodHost, nodeID))
	if err != nil {
		return err
	}
	nc.recordNodeEvent(nodeID, "DeletingAllPods", fmt.Sprintf("Deleting all Pods from Node %v.", nodeID))
	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeID {
			continue
		}
		glog.V(2).Infof("Delete pod %v", pod.Name)
		nc.recorder.Eventf(&pod, "NodeControllerEviction", "Deleting Pod %s from Node %s", pod.Name, nodeID)
		if err := nc.kubeClient.Pods(pod.Namespace).Delete(pod.Name, nil); err != nil {
			glog.Errorf("Error deleting pod %v: %v", pod.Name, err)
		}
	}

	return nil
}

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