Updating dependency github.com/google/cadvisor to version 6a8d614
Signed-off-by: Davanum Srinivas <davanum@gmail.com>
This commit is contained in:
42
vendor/github.com/google/cadvisor/container/raw/watcher.go
generated
vendored
42
vendor/github.com/google/cadvisor/container/raw/watcher.go
generated
vendored
@@ -28,7 +28,7 @@ import (
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"github.com/google/cadvisor/watcher"
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inotify "k8s.io/utils/inotify"
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"k8s.io/klog"
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"k8s.io/klog/v2"
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)
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type rawContainerWatcher struct {
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@@ -68,10 +68,10 @@ func NewRawContainerWatcher() (watcher.ContainerWatcher, error) {
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return rawWatcher, nil
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}
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func (self *rawContainerWatcher) Start(events chan watcher.ContainerEvent) error {
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func (w *rawContainerWatcher) Start(events chan watcher.ContainerEvent) error {
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// Watch this container (all its cgroups) and all subdirectories.
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for _, cgroupPath := range self.cgroupPaths {
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_, err := self.watchDirectory(events, cgroupPath, "/")
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for _, cgroupPath := range w.cgroupPaths {
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_, err := w.watchDirectory(events, cgroupPath, "/")
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if err != nil {
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return err
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}
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@@ -81,17 +81,17 @@ func (self *rawContainerWatcher) Start(events chan watcher.ContainerEvent) error
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go func() {
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for {
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select {
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case event := <-self.watcher.Event():
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err := self.processEvent(event, events)
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case event := <-w.watcher.Event():
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err := w.processEvent(event, events)
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if err != nil {
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klog.Warningf("Error while processing event (%+v): %v", event, err)
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}
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case err := <-self.watcher.Error():
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case err := <-w.watcher.Error():
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klog.Warningf("Error while watching %q: %v", "/", err)
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case <-self.stopWatcher:
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err := self.watcher.Close()
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case <-w.stopWatcher:
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err := w.watcher.Close()
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if err == nil {
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self.stopWatcher <- err
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w.stopWatcher <- err
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return
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}
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}
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@@ -101,21 +101,21 @@ func (self *rawContainerWatcher) Start(events chan watcher.ContainerEvent) error
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return nil
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}
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func (self *rawContainerWatcher) Stop() error {
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func (w *rawContainerWatcher) Stop() error {
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// Rendezvous with the watcher thread.
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self.stopWatcher <- nil
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return <-self.stopWatcher
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w.stopWatcher <- nil
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return <-w.stopWatcher
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}
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// Watches the specified directory and all subdirectories. Returns whether the path was
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// already being watched and an error (if any).
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func (self *rawContainerWatcher) watchDirectory(events chan watcher.ContainerEvent, dir string, containerName string) (bool, error) {
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func (w *rawContainerWatcher) watchDirectory(events chan watcher.ContainerEvent, dir string, containerName string) (bool, error) {
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// Don't watch .mount cgroups because they never have containers as sub-cgroups. A single container
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// can have many .mount cgroups associated with it which can quickly exhaust the inotify watches on a node.
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if strings.HasSuffix(containerName, ".mount") {
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return false, nil
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}
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alreadyWatching, err := self.watcher.AddWatch(containerName, dir)
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alreadyWatching, err := w.watcher.AddWatch(containerName, dir)
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if err != nil {
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return alreadyWatching, err
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}
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@@ -124,7 +124,7 @@ func (self *rawContainerWatcher) watchDirectory(events chan watcher.ContainerEve
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cleanup := true
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defer func() {
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if cleanup {
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_, err := self.watcher.RemoveWatch(containerName, dir)
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_, err := w.watcher.RemoveWatch(containerName, dir)
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if err != nil {
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klog.Warningf("Failed to remove inotify watch for %q: %v", dir, err)
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}
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@@ -141,7 +141,7 @@ func (self *rawContainerWatcher) watchDirectory(events chan watcher.ContainerEve
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if entry.IsDir() {
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entryPath := path.Join(dir, entry.Name())
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subcontainerName := path.Join(containerName, entry.Name())
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alreadyWatchingSubDir, err := self.watchDirectory(events, entryPath, subcontainerName)
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alreadyWatchingSubDir, err := w.watchDirectory(events, entryPath, subcontainerName)
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if err != nil {
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klog.Errorf("Failed to watch directory %q: %v", entryPath, err)
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if os.IsNotExist(err) {
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@@ -168,7 +168,7 @@ func (self *rawContainerWatcher) watchDirectory(events chan watcher.ContainerEve
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return alreadyWatching, nil
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}
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func (self *rawContainerWatcher) processEvent(event *inotify.Event, events chan watcher.ContainerEvent) error {
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func (w *rawContainerWatcher) processEvent(event *inotify.Event, events chan watcher.ContainerEvent) error {
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// Convert the inotify event type to a container create or delete.
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var eventType watcher.ContainerEventType
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switch {
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@@ -187,7 +187,7 @@ func (self *rawContainerWatcher) processEvent(event *inotify.Event, events chan
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// Derive the container name from the path name.
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var containerName string
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for _, mount := range self.cgroupSubsystems.Mounts {
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for _, mount := range w.cgroupSubsystems.Mounts {
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mountLocation := path.Clean(mount.Mountpoint) + "/"
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if strings.HasPrefix(event.Name, mountLocation) {
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containerName = event.Name[len(mountLocation)-1:]
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@@ -202,7 +202,7 @@ func (self *rawContainerWatcher) processEvent(event *inotify.Event, events chan
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switch eventType {
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case watcher.ContainerAdd:
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// New container was created, watch it.
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alreadyWatched, err := self.watchDirectory(events, event.Name, containerName)
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alreadyWatched, err := w.watchDirectory(events, event.Name, containerName)
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if err != nil {
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return err
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}
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@@ -213,7 +213,7 @@ func (self *rawContainerWatcher) processEvent(event *inotify.Event, events chan
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}
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case watcher.ContainerDelete:
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// Container was deleted, stop watching for it.
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lastWatched, err := self.watcher.RemoveWatch(containerName, event.Name)
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lastWatched, err := w.watcher.RemoveWatch(containerName, event.Name)
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if err != nil {
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return err
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}
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