Golang pod.FindPort函数代码示例

func (e *EndpointController) syncService(key string) {
	startTime := time.Now()
	defer func() {
		glog.V(4).Infof("Finished syncing service %q endpoints. (%v)", key, time.Now().Sub(startTime))
	}()

	if !e.podStoreSynced() {
		// Sleep so we give the pod reflector goroutine a chance to run.
		time.Sleep(PodStoreSyncedPollPeriod)
		glog.Infof("Waiting for pods controller to sync, requeuing service %v", key)
		e.queue.Add(key)
		return
	}

	obj, exists, err := e.serviceStore.Store.GetByKey(key)
	if err != nil || !exists {
		// Delete the corresponding endpoint, as the service has been deleted.
		// TODO: Please note that this will delete an endpoint when a
		// service is deleted. However, if we're down at the time when
		// the service is deleted, we will miss that deletion, so this
		// doesn't completely solve the problem. See #6877.
		namespace, name, err := cache.SplitMetaNamespaceKey(key)
		if err != nil {
			glog.Errorf("Need to delete endpoint with key %q, but couldn't understand the key: %v", key, err)
			// Don't retry, as the key isn't going to magically become understandable.
			return
		}
		err = e.client.Endpoints(namespace).Delete(name, nil)
		if err != nil && !errors.IsNotFound(err) {
			glog.Errorf("Error deleting endpoint %q: %v", key, err)
			e.queue.Add(key) // Retry
		}
		return
	}

	service := obj.(*api.Service)
	if service.Spec.Selector == nil {
		// services without a selector receive no endpoints from this controller;
		// these services will receive the endpoints that are created out-of-band via the REST API.
		return
	}

	glog.V(5).Infof("About to update endpoints for service %q", key)
	pods, err := e.podStore.Pods(service.Namespace).List(labels.Set(service.Spec.Selector).AsSelector())
	if err != nil {
		// Since we're getting stuff from a local cache, it is
		// basically impossible to get this error.
		glog.Errorf("Error syncing service %q: %v", key, err)
		e.queue.Add(key) // Retry
		return
	}

	subsets := []api.EndpointSubset{}
	podHostNames := map[string]endpoints.HostRecord{}

	var tolerateUnreadyEndpoints bool
	if v, ok := service.Annotations[TolerateUnreadyEndpointsAnnotation]; ok {
		b, err := strconv.ParseBool(v)
		if err == nil {
			tolerateUnreadyEndpoints = b
		} else {
			glog.Errorf("Failed to parse annotation %v: %v", TolerateUnreadyEndpointsAnnotation, err)
		}
	}

	for i := range pods.Items {
		pod := &pods.Items[i]

		for i := range service.Spec.Ports {
			servicePort := &service.Spec.Ports[i]

			portName := servicePort.Name
			portProto := servicePort.Protocol
			portNum, err := podutil.FindPort(pod, servicePort)
			if err != nil {
				glog.V(4).Infof("Failed to find port for service %s/%s: %v", service.Namespace, service.Name, err)
				continue
			}
			if len(pod.Status.PodIP) == 0 {
				glog.V(5).Infof("Failed to find an IP for pod %s/%s", pod.Namespace, pod.Name)
				continue
			}
			if pod.DeletionTimestamp != nil {
				glog.V(5).Infof("Pod is being deleted %s/%s", pod.Namespace, pod.Name)
				continue
			}

			epp := api.EndpointPort{Name: portName, Port: int32(portNum), Protocol: portProto}
			epa := api.EndpointAddress{
				IP: pod.Status.PodIP,
				TargetRef: &api.ObjectReference{
					Kind:            "Pod",
					Namespace:       pod.ObjectMeta.Namespace,
					Name:            pod.ObjectMeta.Name,
					UID:             pod.ObjectMeta.UID,
					ResourceVersion: pod.ObjectMeta.ResourceVersion,
				}}

			hostname := getHostname(pod)
			if len(hostname) > 0 &&
//.........这里部分代码省略.........

// checkSvcForUpdate verifies if one of the running pods for a service contains
// named port. If the annotation in the service does not exists or is not equals
// to the port mapping obtained from the pod the service must be updated to reflect
// the current state
func (lbc *loadBalancerController) checkSvcForUpdate(svc *api.Service) (map[string]string, error) {
	// get the pods associated with the service
	// TODO: switch this to a watch
	pods, err := lbc.client.Pods(svc.Namespace).List(api.ListOptions{
		LabelSelector: labels.Set(svc.Spec.Selector).AsSelector(),
	})

	namedPorts := map[string]string{}
	if err != nil {
		return namedPorts, fmt.Errorf("error searching service pods %v/%v: %v", svc.Namespace, svc.Name, err)
	}

	if len(pods.Items) == 0 {
		return namedPorts, nil
	}

	// we need to check only one pod searching for named ports
	pod := &pods.Items[0]
	glog.V(4).Infof("checking pod %v/%v for named port information", pod.Namespace, pod.Name)
	for i := range svc.Spec.Ports {
		servicePort := &svc.Spec.Ports[i]

		_, err := strconv.Atoi(servicePort.TargetPort.StrVal)
		if err != nil {
			portNum, err := podutil.FindPort(pod, servicePort)
			if err != nil {
				glog.V(4).Infof("failed to find port for service %s/%s: %v", svc.Namespace, svc.Name, err)
				continue
			}

			if servicePort.TargetPort.StrVal == "" {
				continue
			}

			namedPorts[servicePort.TargetPort.StrVal] = fmt.Sprintf("%v", portNum)
		}
	}

	if svc.ObjectMeta.Annotations == nil {
		svc.ObjectMeta.Annotations = map[string]string{}
	}

	curNamedPort := svc.ObjectMeta.Annotations[namedPortAnnotation]
	if len(namedPorts) > 0 && !reflect.DeepEqual(curNamedPort, namedPorts) {
		data, _ := json.Marshal(namedPorts)

		newSvc, err := lbc.client.Services(svc.Namespace).Get(svc.Name)
		if err != nil {
			return namedPorts, fmt.Errorf("error getting service %v/%v: %v", svc.Namespace, svc.Name, err)
		}

		if newSvc.ObjectMeta.Annotations == nil {
			newSvc.ObjectMeta.Annotations = map[string]string{}
		}

		newSvc.ObjectMeta.Annotations[namedPortAnnotation] = string(data)
		glog.Infof("updating service %v with new named port mappings", svc.Name)
		_, err = lbc.client.Services(svc.Namespace).Update(newSvc)
		if err != nil {
			return namedPorts, fmt.Errorf("error syncing service %v/%v: %v", svc.Namespace, svc.Name, err)
		}

		return newSvc.ObjectMeta.Annotations, nil
	}

	return namedPorts, nil
}

func (e *EndpointController) syncService(key string) error {
	startTime := time.Now()
	defer func() {
		glog.V(4).Infof("Finished syncing service %q endpoints. (%v)", key, time.Now().Sub(startTime))
	}()

	obj, exists, err := e.serviceStore.Indexer.GetByKey(key)
	if err != nil || !exists {
		// Delete the corresponding endpoint, as the service has been deleted.
		// TODO: Please note that this will delete an endpoint when a
		// service is deleted. However, if we're down at the time when
		// the service is deleted, we will miss that deletion, so this
		// doesn't completely solve the problem. See #6877.
		namespace, name, err := cache.SplitMetaNamespaceKey(key)
		if err != nil {
			utilruntime.HandleError(fmt.Errorf("Need to delete endpoint with key %q, but couldn't understand the key: %v", key, err))
			// Don't retry, as the key isn't going to magically become understandable.
			return nil
		}
		err = e.client.Core().Endpoints(namespace).Delete(name, nil)
		if err != nil && !errors.IsNotFound(err) {
			return err
		}
		return nil
	}

	service := obj.(*api.Service)
	if service.Spec.Selector == nil {
		// services without a selector receive no endpoints from this controller;
		// these services will receive the endpoints that are created out-of-band via the REST API.
		return nil
	}

	glog.V(5).Infof("About to update endpoints for service %q", key)
	pods, err := e.podStore.Pods(service.Namespace).List(labels.Set(service.Spec.Selector).AsSelectorPreValidated())
	if err != nil {
		// Since we're getting stuff from a local cache, it is
		// basically impossible to get this error.
		return err
	}

	subsets := []api.EndpointSubset{}
	podHostNames := map[string]endpoints.HostRecord{}

	var tolerateUnreadyEndpoints bool
	if v, ok := service.Annotations[TolerateUnreadyEndpointsAnnotation]; ok {
		b, err := strconv.ParseBool(v)
		if err == nil {
			tolerateUnreadyEndpoints = b
		} else {
			utilruntime.HandleError(fmt.Errorf("Failed to parse annotation %v: %v", TolerateUnreadyEndpointsAnnotation, err))
		}
	}

	readyEps := 0
	notReadyEps := 0
	for i := range pods {
		// TODO: Do we need to copy here?
		pod := &(*pods[i])

		for i := range service.Spec.Ports {
			servicePort := &service.Spec.Ports[i]

			portName := servicePort.Name
			portProto := servicePort.Protocol
			portNum, err := podutil.FindPort(pod, servicePort)
			if err != nil {
				glog.V(4).Infof("Failed to find port for service %s/%s: %v", service.Namespace, service.Name, err)
				continue
			}
			if len(pod.Status.PodIP) == 0 {
				glog.V(5).Infof("Failed to find an IP for pod %s/%s", pod.Namespace, pod.Name)
				continue
			}
			if pod.DeletionTimestamp != nil {
				glog.V(5).Infof("Pod is being deleted %s/%s", pod.Namespace, pod.Name)
				continue
			}

			epp := api.EndpointPort{Name: portName, Port: int32(portNum), Protocol: portProto}
			epa := api.EndpointAddress{
				IP:       pod.Status.PodIP,
				NodeName: &pod.Spec.NodeName,
				TargetRef: &api.ObjectReference{
					Kind:            "Pod",
					Namespace:       pod.ObjectMeta.Namespace,
					Name:            pod.ObjectMeta.Name,
					UID:             pod.ObjectMeta.UID,
					ResourceVersion: pod.ObjectMeta.ResourceVersion,
				}}

			hostname := getHostname(pod)
			if len(hostname) > 0 &&
				getSubdomain(pod) == service.Name &&
				service.Namespace == pod.Namespace {
				hostRecord := endpoints.HostRecord{
					HostName: hostname,
				}
				// TODO: stop populating podHostNames annotation in 1.4
				podHostNames[string(pod.Status.PodIP)] = hostRecord
//.........这里部分代码省略.........

func (e *EndpointController) syncService(key string) {
	startTime := time.Now()
	defer func() {
		glog.V(4).Infof("Finished syncing service %q endpoints. (%v)", key, time.Now().Sub(startTime))
	}()
	obj, exists, err := e.serviceStore.Store.GetByKey(key)
	if err != nil || !exists {
		// Delete the corresponding endpoint, as the service has been deleted.
		// TODO: Please note that this will delete an endpoint when a
		// service is deleted. However, if we're down at the time when
		// the service is deleted, we will miss that deletion, so this
		// doesn't completely solve the problem. See #6877.
		namespace, name, err := cache.SplitMetaNamespaceKey(key)
		if err != nil {
			glog.Errorf("Need to delete endpoint with key %q, but couldn't understand the key: %v", key, err)
			// Don't retry, as the key isn't going to magically become understandable.
			return
		}
		err = e.client.Endpoints(namespace).Delete(name, nil)
		if err != nil && !errors.IsNotFound(err) {
			glog.Errorf("Error deleting endpoint %q: %v", key, err)
			e.queue.Add(key) // Retry
		}
		return
	}

	service := obj.(*api.Service)
	if service.Spec.Selector == nil {
		// services without a selector receive no endpoints from this controller;
		// these services will receive the endpoints that are created out-of-band via the REST API.
		return
	}

	glog.V(5).Infof("About to update endpoints for service %q", key)
	pods, err := e.podStore.Pods(service.Namespace).List(labels.Set(service.Spec.Selector).AsSelector())
	if err != nil {
		// Since we're getting stuff from a local cache, it is
		// basically impossible to get this error.
		glog.Errorf("Error syncing service %q: %v", key, err)
		e.queue.Add(key) // Retry
		return
	}

	subsets := []api.EndpointSubset{}
	for i := range pods.Items {
		pod := &pods.Items[i]

		for i := range service.Spec.Ports {
			servicePort := &service.Spec.Ports[i]

			portName := servicePort.Name
			portProto := servicePort.Protocol
			portNum, err := podutil.FindPort(pod, servicePort)
			if err != nil {
				glog.V(4).Infof("Failed to find port for service %s/%s: %v", service.Namespace, service.Name, err)
				continue
			}
			if len(pod.Status.PodIP) == 0 {
				glog.V(5).Infof("Failed to find an IP for pod %s/%s", pod.Namespace, pod.Name)
				continue
			}
			if pod.DeletionTimestamp != nil {
				glog.V(5).Infof("Pod is being deleted %s/%s", pod.Namespace, pod.Name)
				continue
			}

			epp := api.EndpointPort{Name: portName, Port: portNum, Protocol: portProto}
			epa := api.EndpointAddress{IP: pod.Status.PodIP, TargetRef: &api.ObjectReference{
				Kind:            "Pod",
				Namespace:       pod.ObjectMeta.Namespace,
				Name:            pod.ObjectMeta.Name,
				UID:             pod.ObjectMeta.UID,
				ResourceVersion: pod.ObjectMeta.ResourceVersion,
			}}
			if api.IsPodReady(pod) {
				subsets = append(subsets, api.EndpointSubset{
					Addresses: []api.EndpointAddress{epa},
					Ports:     []api.EndpointPort{epp},
				})
			} else {
				glog.V(5).Infof("Pod is out of service: %v/%v", pod.Namespace, pod.Name)
				subsets = append(subsets, api.EndpointSubset{
					NotReadyAddresses: []api.EndpointAddress{epa},
					Ports:             []api.EndpointPort{epp},
				})
			}
		}
	}
	subsets = endpoints.RepackSubsets(subsets)

	// See if there's actually an update here.
	currentEndpoints, err := e.client.Endpoints(service.Namespace).Get(service.Name)
	if err != nil {
		if errors.IsNotFound(err) {
			currentEndpoints = &api.Endpoints{
				ObjectMeta: api.ObjectMeta{
					Name:   service.Name,
					Labels: service.Labels,
				},
			}
//.........这里部分代码省略.........