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Diffstat (limited to 'libpod/container_internal_linux.go')
-rw-r--r--libpod/container_internal_linux.go159
1 files changed, 107 insertions, 52 deletions
diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go
index 91453574e..4a15d495f 100644
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@@ -1129,25 +1129,26 @@ func (c *Container) checkpointRestoreSupported(version int) error {
return nil
}
-func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointOptions) error {
+func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointOptions) (*define.CRIUCheckpointRestoreStatistics, int64, error) {
if err := c.checkpointRestoreSupported(criu.MinCriuVersion); err != nil {
- return err
+ return nil, 0, err
}
if c.state.State != define.ContainerStateRunning {
- return errors.Wrapf(define.ErrCtrStateInvalid, "%q is not running, cannot checkpoint", c.state.State)
+ return nil, 0, errors.Wrapf(define.ErrCtrStateInvalid, "%q is not running, cannot checkpoint", c.state.State)
}
if c.AutoRemove() && options.TargetFile == "" {
- return errors.Errorf("cannot checkpoint containers that have been started with '--rm' unless '--export' is used")
+ return nil, 0, errors.Errorf("cannot checkpoint containers that have been started with '--rm' unless '--export' is used")
}
if err := crutils.CRCreateFileWithLabel(c.bundlePath(), "dump.log", c.MountLabel()); err != nil {
- return err
+ return nil, 0, err
}
- if err := c.ociRuntime.CheckpointContainer(c, options); err != nil {
- return err
+ runtimeCheckpointDuration, err := c.ociRuntime.CheckpointContainer(c, options)
+ if err != nil {
+ return nil, 0, err
}
// Save network.status. This is needed to restore the container with
@@ -1155,7 +1156,7 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
// with one interface.
// FIXME: will this break something?
if _, err := metadata.WriteJSONFile(c.getNetworkStatus(), c.bundlePath(), metadata.NetworkStatusFile); err != nil {
- return err
+ return nil, 0, err
}
defer c.newContainerEvent(events.Checkpoint)
@@ -1165,13 +1166,13 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
if options.WithPrevious {
os.Remove(path.Join(c.CheckpointPath(), "parent"))
if err := os.Symlink("../pre-checkpoint", path.Join(c.CheckpointPath(), "parent")); err != nil {
- return err
+ return nil, 0, err
}
}
if options.TargetFile != "" {
if err := c.exportCheckpoint(options); err != nil {
- return err
+ return nil, 0, err
}
}
@@ -1183,10 +1184,37 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
// Cleanup Storage and Network
if err := c.cleanup(ctx); err != nil {
- return err
+ return nil, 0, err
}
}
+ criuStatistics, err := func() (*define.CRIUCheckpointRestoreStatistics, error) {
+ if !options.PrintStats {
+ return nil, nil
+ }
+ statsDirectory, err := os.Open(c.bundlePath())
+ if err != nil {
+ return nil, errors.Wrapf(err, "Not able to open %q", c.bundlePath())
+ }
+
+ dumpStatistics, err := stats.CriuGetDumpStats(statsDirectory)
+ if err != nil {
+ return nil, errors.Wrap(err, "Displaying checkpointing statistics not possible")
+ }
+
+ return &define.CRIUCheckpointRestoreStatistics{
+ FreezingTime: dumpStatistics.GetFreezingTime(),
+ FrozenTime: dumpStatistics.GetFrozenTime(),
+ MemdumpTime: dumpStatistics.GetMemdumpTime(),
+ MemwriteTime: dumpStatistics.GetMemwriteTime(),
+ PagesScanned: dumpStatistics.GetPagesScanned(),
+ PagesWritten: dumpStatistics.GetPagesWritten(),
+ }, nil
+ }()
+ if err != nil {
+ return nil, 0, err
+ }
+
if !options.Keep && !options.PreCheckPoint {
cleanup := []string{
"dump.log",
@@ -1203,7 +1231,7 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
}
c.state.FinishedTime = time.Now()
- return c.save()
+ return criuStatistics, runtimeCheckpointDuration, c.save()
}
func (c *Container) importCheckpoint(input string) error {
@@ -1236,7 +1264,7 @@ func (c *Container) importPreCheckpoint(input string) error {
return nil
}
-func (c *Container) restore(ctx context.Context, options ContainerCheckpointOptions) (retErr error) {
+func (c *Container) restore(ctx context.Context, options ContainerCheckpointOptions) (criuStatistics *define.CRIUCheckpointRestoreStatistics, runtimeRestoreDuration int64, retErr error) {
minCriuVersion := func() int {
if options.Pod == "" {
return criu.MinCriuVersion
@@ -1244,37 +1272,37 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
return criu.PodCriuVersion
}()
if err := c.checkpointRestoreSupported(minCriuVersion); err != nil {
- return err
+ return nil, 0, err
}
if options.Pod != "" && !crutils.CRRuntimeSupportsPodCheckpointRestore(c.ociRuntime.Path()) {
- return errors.Errorf("runtime %s does not support pod restore", c.ociRuntime.Path())
+ return nil, 0, errors.Errorf("runtime %s does not support pod restore", c.ociRuntime.Path())
}
if !c.ensureState(define.ContainerStateConfigured, define.ContainerStateExited) {
- return errors.Wrapf(define.ErrCtrStateInvalid, "container %s is running or paused, cannot restore", c.ID())
+ return nil, 0, errors.Wrapf(define.ErrCtrStateInvalid, "container %s is running or paused, cannot restore", c.ID())
}
if options.ImportPrevious != "" {
if err := c.importPreCheckpoint(options.ImportPrevious); err != nil {
- return err
+ return nil, 0, err
}
}
if options.TargetFile != "" {
if err := c.importCheckpoint(options.TargetFile); err != nil {
- return err
+ return nil, 0, err
}
}
// Let's try to stat() CRIU's inventory file. If it does not exist, it makes
// no sense to try a restore. This is a minimal check if a checkpoint exist.
if _, err := os.Stat(filepath.Join(c.CheckpointPath(), "inventory.img")); os.IsNotExist(err) {
- return errors.Wrapf(err, "a complete checkpoint for this container cannot be found, cannot restore")
+ return nil, 0, errors.Wrapf(err, "a complete checkpoint for this container cannot be found, cannot restore")
}
if err := crutils.CRCreateFileWithLabel(c.bundlePath(), "restore.log", c.MountLabel()); err != nil {
- return err
+ return nil, 0, err
}
// If a container is restored multiple times from an exported checkpoint with
@@ -1311,7 +1339,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
// container with the same networks settings as during checkpointing.
aliases, err := c.GetAllNetworkAliases()
if err != nil {
- return err
+ return nil, 0, err
}
netOpts := make(map[string]types.PerNetworkOptions, len(netStatus))
for network, status := range netStatus {
@@ -1336,7 +1364,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
if perNetOpts.InterfaceName == "" {
eth, exists := c.state.NetInterfaceDescriptions.getInterfaceByName(network)
if !exists {
- return errors.Errorf("no network interface name for container %s on network %s", c.config.ID, network)
+ return nil, 0, errors.Errorf("no network interface name for container %s on network %s", c.config.ID, network)
}
perNetOpts.InterfaceName = eth
}
@@ -1354,7 +1382,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
}()
if err := c.prepare(); err != nil {
- return err
+ return nil, 0, err
}
// Read config
@@ -1363,7 +1391,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
g, err := generate.NewFromFile(jsonPath)
if err != nil {
logrus.Debugf("generate.NewFromFile failed with %v", err)
- return err
+ return nil, 0, err
}
// Restoring from an import means that we are doing migration
@@ -1379,7 +1407,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
}
if err := g.AddOrReplaceLinuxNamespace(string(spec.NetworkNamespace), netNSPath); err != nil {
- return err
+ return nil, 0, err
}
}
@@ -1388,23 +1416,23 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
// the ones from the infrastructure container.
pod, err := c.runtime.LookupPod(options.Pod)
if err != nil {
- return errors.Wrapf(err, "pod %q cannot be retrieved", options.Pod)
+ return nil, 0, errors.Wrapf(err, "pod %q cannot be retrieved", options.Pod)
}
infraContainer, err := pod.InfraContainer()
if err != nil {
- return errors.Wrapf(err, "cannot retrieved infra container from pod %q", options.Pod)
+ return nil, 0, errors.Wrapf(err, "cannot retrieved infra container from pod %q", options.Pod)
}
infraContainer.lock.Lock()
if err := infraContainer.syncContainer(); err != nil {
infraContainer.lock.Unlock()
- return errors.Wrapf(err, "Error syncing infrastructure container %s status", infraContainer.ID())
+ return nil, 0, errors.Wrapf(err, "Error syncing infrastructure container %s status", infraContainer.ID())
}
if infraContainer.state.State != define.ContainerStateRunning {
if err := infraContainer.initAndStart(ctx); err != nil {
infraContainer.lock.Unlock()
- return errors.Wrapf(err, "Error starting infrastructure container %s status", infraContainer.ID())
+ return nil, 0, errors.Wrapf(err, "Error starting infrastructure container %s status", infraContainer.ID())
}
}
infraContainer.lock.Unlock()
@@ -1412,56 +1440,56 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
if c.config.IPCNsCtr != "" {
nsPath, err := infraContainer.namespacePath(IPCNS)
if err != nil {
- return errors.Wrapf(err, "cannot retrieve IPC namespace path for Pod %q", options.Pod)
+ return nil, 0, errors.Wrapf(err, "cannot retrieve IPC namespace path for Pod %q", options.Pod)
}
if err := g.AddOrReplaceLinuxNamespace(string(spec.IPCNamespace), nsPath); err != nil {
- return err
+ return nil, 0, err
}
}
if c.config.NetNsCtr != "" {
nsPath, err := infraContainer.namespacePath(NetNS)
if err != nil {
- return errors.Wrapf(err, "cannot retrieve network namespace path for Pod %q", options.Pod)
+ return nil, 0, errors.Wrapf(err, "cannot retrieve network namespace path for Pod %q", options.Pod)
}
if err := g.AddOrReplaceLinuxNamespace(string(spec.NetworkNamespace), nsPath); err != nil {
- return err
+ return nil, 0, err
}
}
if c.config.PIDNsCtr != "" {
nsPath, err := infraContainer.namespacePath(PIDNS)
if err != nil {
- return errors.Wrapf(err, "cannot retrieve PID namespace path for Pod %q", options.Pod)
+ return nil, 0, errors.Wrapf(err, "cannot retrieve PID namespace path for Pod %q", options.Pod)
}
if err := g.AddOrReplaceLinuxNamespace(string(spec.PIDNamespace), nsPath); err != nil {
- return err
+ return nil, 0, err
}
}
if c.config.UTSNsCtr != "" {
nsPath, err := infraContainer.namespacePath(UTSNS)
if err != nil {
- return errors.Wrapf(err, "cannot retrieve UTS namespace path for Pod %q", options.Pod)
+ return nil, 0, errors.Wrapf(err, "cannot retrieve UTS namespace path for Pod %q", options.Pod)
}
if err := g.AddOrReplaceLinuxNamespace(string(spec.UTSNamespace), nsPath); err != nil {
- return err
+ return nil, 0, err
}
}
if c.config.CgroupNsCtr != "" {
nsPath, err := infraContainer.namespacePath(CgroupNS)
if err != nil {
- return errors.Wrapf(err, "cannot retrieve Cgroup namespace path for Pod %q", options.Pod)
+ return nil, 0, errors.Wrapf(err, "cannot retrieve Cgroup namespace path for Pod %q", options.Pod)
}
if err := g.AddOrReplaceLinuxNamespace(string(spec.CgroupNamespace), nsPath); err != nil {
- return err
+ return nil, 0, err
}
}
}
if err := c.makeBindMounts(); err != nil {
- return err
+ return nil, 0, err
}
if options.TargetFile != "" {
@@ -1483,12 +1511,12 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
// Cleanup for a working restore.
if err := c.removeConmonFiles(); err != nil {
- return err
+ return nil, 0, err
}
// Save the OCI spec to disk
if err := c.saveSpec(g.Config); err != nil {
- return err
+ return nil, 0, err
}
// When restoring from an imported archive, allow restoring the content of volumes.
@@ -1499,24 +1527,24 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
volumeFile, err := os.Open(volumeFilePath)
if err != nil {
- return errors.Wrapf(err, "failed to open volume file %s", volumeFilePath)
+ return nil, 0, errors.Wrapf(err, "failed to open volume file %s", volumeFilePath)
}
defer volumeFile.Close()
volume, err := c.runtime.GetVolume(v.Name)
if err != nil {
- return errors.Wrapf(err, "failed to retrieve volume %s", v.Name)
+ return nil, 0, errors.Wrapf(err, "failed to retrieve volume %s", v.Name)
}
mountPoint, err := volume.MountPoint()
if err != nil {
- return err
+ return nil, 0, err
}
if mountPoint == "" {
- return errors.Wrapf(err, "unable to import volume %s as it is not mounted", volume.Name())
+ return nil, 0, errors.Wrapf(err, "unable to import volume %s as it is not mounted", volume.Name())
}
if err := archive.UntarUncompressed(volumeFile, mountPoint, nil); err != nil {
- return errors.Wrapf(err, "Failed to extract volume %s to %s", volumeFilePath, mountPoint)
+ return nil, 0, errors.Wrapf(err, "Failed to extract volume %s to %s", volumeFilePath, mountPoint)
}
}
}
@@ -1524,16 +1552,43 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
// Before actually restarting the container, apply the root file-system changes
if !options.IgnoreRootfs {
if err := crutils.CRApplyRootFsDiffTar(c.bundlePath(), c.state.Mountpoint); err != nil {
- return err
+ return nil, 0, err
}
if err := crutils.CRRemoveDeletedFiles(c.ID(), c.bundlePath(), c.state.Mountpoint); err != nil {
- return err
+ return nil, 0, err
}
}
- if err := c.ociRuntime.CreateContainer(c, &options); err != nil {
- return err
+ runtimeRestoreDuration, err = c.ociRuntime.CreateContainer(c, &options)
+ if err != nil {
+ return nil, 0, err
+ }
+
+ criuStatistics, err = func() (*define.CRIUCheckpointRestoreStatistics, error) {
+ if !options.PrintStats {
+ return nil, nil
+ }
+ statsDirectory, err := os.Open(c.bundlePath())
+ if err != nil {
+ return nil, errors.Wrapf(err, "Not able to open %q", c.bundlePath())
+ }
+
+ restoreStatistics, err := stats.CriuGetRestoreStats(statsDirectory)
+ if err != nil {
+ return nil, errors.Wrap(err, "Displaying restore statistics not possible")
+ }
+
+ return &define.CRIUCheckpointRestoreStatistics{
+ PagesCompared: restoreStatistics.GetPagesCompared(),
+ PagesSkippedCow: restoreStatistics.GetPagesSkippedCow(),
+ ForkingTime: restoreStatistics.GetForkingTime(),
+ RestoreTime: restoreStatistics.GetRestoreTime(),
+ PagesRestored: restoreStatistics.GetPagesRestored(),
+ }, nil
+ }()
+ if err != nil {
+ return nil, 0, err
}
logrus.Debugf("Restored container %s", c.ID())
@@ -1572,7 +1627,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
}
}
- return c.save()
+ return criuStatistics, runtimeRestoreDuration, c.save()
}
// Retrieves a container's "root" net namespace container dependency.
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-08 04:29:47 +0000