Esempio n. 1
0
func filterInvalidPods(pods []*api.Pod, source string, recorder record.EventRecorder) (filtered []*api.Pod) {
	names := sets.String{}
	for i, pod := range pods {
		var errlist field.ErrorList
		if errs := validation.ValidatePod(pod); len(errs) != 0 {
			errlist = append(errlist, errs...)
			// If validation fails, don't trust it any further -
			// even Name could be bad.
		} else {
			name := kubecontainer.GetPodFullName(pod)
			if names.Has(name) {
				// TODO: when validation becomes versioned, this gets a bit
				// more complicated.
				errlist = append(errlist, field.Duplicate(field.NewPath("metadata", "name"), pod.Name))
			} else {
				names.Insert(name)
			}
		}
		if len(errlist) > 0 {
			name := bestPodIdentString(pod)
			err := errlist.ToAggregate()
			glog.Warningf("Pod[%d] (%s) from %s failed validation, ignoring: %v", i+1, name, source, err)
			recorder.Eventf(pod, api.EventTypeWarning, kubecontainer.FailedValidation, "Error validating pod %s from %s, ignoring: %v", name, source, err)
			continue
		}
		filtered = append(filtered, pod)
	}
	return
}
Esempio n. 2
0
// Handles kubernetes pod/container stats requests to:
// /stats/<pod name>/<container name>
// /stats/<namespace>/<pod name>/<uid>/<container name>
func (h *handler) handlePodContainer(request *restful.Request, response *restful.Response) {
	query, err := parseStatsRequest(request)
	if err != nil {
		handleError(response, request.Request.URL.String(), err)
		return
	}

	// Default parameters.
	params := map[string]string{
		"namespace": api.NamespaceDefault,
		"uid":       "",
	}
	for k, v := range request.PathParameters() {
		params[k] = v
	}

	if params["podName"] == "" || params["containerName"] == "" {
		response.WriteErrorString(http.StatusBadRequest,
			fmt.Sprintf("Invalid pod container request: %v", params))
		return
	}

	pod, ok := h.provider.GetPodByName(params["namespace"], params["podName"])
	if !ok {
		glog.V(4).Infof("Container not found: %v", params)
		response.WriteError(http.StatusNotFound, kubecontainer.ErrContainerNotFound)
		return
	}
	stats, err := h.provider.GetContainerInfo(
		kubecontainer.GetPodFullName(pod),
		types.UID(params["uid"]),
		params["containerName"],
		query.cadvisorRequest())

	if err != nil {
		handleError(response, fmt.Sprintf("%s %v", request.Request.URL.String(), query), err)
		return
	}
	writeResponse(response, stats)
}
Esempio n. 3
0
func (s *podStorage) merge(source string, change interface{}) (adds, updates, deletes, reconciles *kubetypes.PodUpdate) {
	s.podLock.Lock()
	defer s.podLock.Unlock()

	addPods := []*api.Pod{}
	updatePods := []*api.Pod{}
	deletePods := []*api.Pod{}
	reconcilePods := []*api.Pod{}

	pods := s.pods[source]
	if pods == nil {
		pods = make(map[string]*api.Pod)
	}

	// updatePodFunc is the local function which updates the pod cache *oldPods* with new pods *newPods*.
	// After updated, new pod will be stored in the pod cache *pods*.
	// Notice that *pods* and *oldPods* could be the same cache.
	updatePodsFunc := func(newPods []*api.Pod, oldPods, pods map[string]*api.Pod) {
		filtered := filterInvalidPods(newPods, source, s.recorder)
		for _, ref := range filtered {
			name := kubecontainer.GetPodFullName(ref)
			// Annotate the pod with the source before any comparison.
			if ref.Annotations == nil {
				ref.Annotations = make(map[string]string)
			}
			ref.Annotations[kubetypes.ConfigSourceAnnotationKey] = source
			if existing, found := oldPods[name]; found {
				pods[name] = existing
				needUpdate, needReconcile := checkAndUpdatePod(existing, ref)
				if needUpdate {
					updatePods = append(updatePods, existing)
				} else if needReconcile {
					reconcilePods = append(reconcilePods, existing)
				}
				continue
			}
			recordFirstSeenTime(ref)
			pods[name] = ref
			addPods = append(addPods, ref)
		}
	}

	update := change.(kubetypes.PodUpdate)
	switch update.Op {
	case kubetypes.ADD, kubetypes.UPDATE:
		if update.Op == kubetypes.ADD {
			glog.V(4).Infof("Adding new pods from source %s : %v", source, update.Pods)
		} else {
			glog.V(4).Infof("Updating pods from source %s : %v", source, update.Pods)
		}
		updatePodsFunc(update.Pods, pods, pods)

	case kubetypes.REMOVE:
		glog.V(4).Infof("Removing a pod %v", update)
		for _, value := range update.Pods {
			name := kubecontainer.GetPodFullName(value)
			if existing, found := pods[name]; found {
				// this is a delete
				delete(pods, name)
				deletePods = append(deletePods, existing)
				continue
			}
			// this is a no-op
		}

	case kubetypes.SET:
		glog.V(4).Infof("Setting pods for source %s", source)
		s.markSourceSet(source)
		// Clear the old map entries by just creating a new map
		oldPods := pods
		pods = make(map[string]*api.Pod)
		updatePodsFunc(update.Pods, oldPods, pods)
		for name, existing := range oldPods {
			if _, found := pods[name]; !found {
				// this is a delete
				deletePods = append(deletePods, existing)
			}
		}

	default:
		glog.Warningf("Received invalid update type: %v", update)

	}

	s.pods[source] = pods

	adds = &kubetypes.PodUpdate{Op: kubetypes.ADD, Pods: copyPods(addPods), Source: source}
	updates = &kubetypes.PodUpdate{Op: kubetypes.UPDATE, Pods: copyPods(updatePods), Source: source}
	deletes = &kubetypes.PodUpdate{Op: kubetypes.REMOVE, Pods: copyPods(deletePods), Source: source}
	reconciles = &kubetypes.PodUpdate{Op: kubetypes.RECONCILE, Pods: copyPods(reconcilePods), Source: source}

	return adds, updates, deletes, reconciles
}