Exemplo n.º 1
0
func newRawContainerHandler(name string, cgroupSubsystems *libcontainer.CgroupSubsystems, machineInfoFactory info.MachineInfoFactory, fsInfo fs.FsInfo, watcher *common.InotifyWatcher, rootFs string, ignoreMetrics container.MetricSet) (container.ContainerHandler, error) {
	cgroupPaths := common.MakeCgroupPaths(cgroupSubsystems.MountPoints, name)

	cHints, err := common.GetContainerHintsFromFile(*common.ArgContainerHints)
	if err != nil {
		return nil, err
	}

	// Generate the equivalent cgroup manager for this container.
	cgroupManager := &cgroupfs.Manager{
		Cgroups: &configs.Cgroup{
			Name: name,
		},
		Paths: cgroupPaths,
	}

	var externalMounts []common.Mount
	for _, container := range cHints.AllHosts {
		if name == container.FullName {
			externalMounts = container.Mounts
			break
		}
	}

	pid := 0
	if isRootCgroup(name) {
		pid = 1
	}

	return &rawContainerHandler{
		name:               name,
		cgroupSubsystems:   cgroupSubsystems,
		machineInfoFactory: machineInfoFactory,
		stopWatcher:        make(chan error),
		cgroupPaths:        cgroupPaths,
		cgroupManager:      cgroupManager,
		fsInfo:             fsInfo,
		externalMounts:     externalMounts,
		watcher:            watcher,
		rootFs:             rootFs,
		ignoreMetrics:      ignoreMetrics,
		pid:                pid,
	}, nil
}
Exemplo n.º 2
0
func NewRawContainerWatcher() (watcher.ContainerWatcher, error) {
	cgroupSubsystems, err := libcontainer.GetCgroupSubsystems()
	if err != nil {
		return nil, fmt.Errorf("failed to get cgroup subsystems: %v", err)
	}
	if len(cgroupSubsystems.Mounts) == 0 {
		return nil, fmt.Errorf("failed to find supported cgroup mounts for the raw factory")
	}

	watcher, err := common.NewInotifyWatcher()
	if err != nil {
		return nil, err
	}

	rawWatcher := &rawContainerWatcher{
		cgroupPaths:      common.MakeCgroupPaths(cgroupSubsystems.MountPoints, "/"),
		cgroupSubsystems: &cgroupSubsystems,
		watcher:          watcher,
		stopWatcher:      make(chan error),
	}

	return rawWatcher, nil
}
Exemplo n.º 3
0
func newRktContainerHandler(name string, rktClient rktapi.PublicAPIClient, rktPath string, cgroupSubsystems *libcontainer.CgroupSubsystems, machineInfoFactory info.MachineInfoFactory, fsInfo fs.FsInfo, rootFs string, ignoreMetrics container.MetricSet) (container.ContainerHandler, error) {
	aliases := make([]string, 1)
	isPod := false

	apiPod := &rktapi.Pod{}

	parsed, err := parseName(name)
	if err != nil {
		return nil, fmt.Errorf("this should be impossible!, new handler failing, but factory allowed, name = %s", name)
	}

	//rktnetes uses containerID: rkt://fff40827-b994-4e3a-8f88-6427c2c8a5ac:nginx
	if parsed.Container == "" {
		isPod = true
		aliases = append(aliases, "rkt://"+parsed.Pod)
	} else {
		aliases = append(aliases, "rkt://"+parsed.Pod+":"+parsed.Container)
	}

	pid := os.Getpid()
	labels := make(map[string]string)
	resp, err := rktClient.InspectPod(context.Background(), &rktapi.InspectPodRequest{
		Id: parsed.Pod,
	})
	if err != nil {
		return nil, err
	} else {
		var annotations []*rktapi.KeyValue
		if parsed.Container == "" {
			pid = int(resp.Pod.Pid)
			apiPod = resp.Pod
			annotations = resp.Pod.Annotations
		} else {
			var ok bool
			if annotations, ok = findAnnotations(resp.Pod.Apps, parsed.Container); !ok {
				glog.Warningf("couldn't find application in Pod matching %v", parsed.Container)
			}
		}
		labels = createLabels(annotations)
	}

	cgroupPaths := common.MakeCgroupPaths(cgroupSubsystems.MountPoints, name)

	// Generate the equivalent cgroup manager for this container.
	cgroupManager := &cgroupfs.Manager{
		Cgroups: &configs.Cgroup{
			Name: name,
		},
		Paths: cgroupPaths,
	}

	hasNetwork := false
	if isPod {
		hasNetwork = true
	}

	rootfsStorageDir := getRootFs(rktPath, parsed)

	handler := &rktContainerHandler{
		name:               name,
		rktClient:          rktClient,
		cgroupSubsystems:   cgroupSubsystems,
		machineInfoFactory: machineInfoFactory,
		cgroupPaths:        cgroupPaths,
		cgroupManager:      cgroupManager,
		fsInfo:             fsInfo,
		hasNetwork:         hasNetwork,
		rootFs:             rootFs,
		isPod:              isPod,
		aliases:            aliases,
		pid:                pid,
		labels:             labels,
		rootfsStorageDir:   rootfsStorageDir,
		ignoreMetrics:      ignoreMetrics,
		apiPod:             apiPod,
	}

	if !ignoreMetrics.Has(container.DiskUsageMetrics) {
		handler.fsHandler = common.NewFsHandler(time.Minute, rootfsStorageDir, "", fsInfo)
	}

	return handler, nil
}