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-rw-r--r--libpod/container_api.go24
-rw-r--r--libpod/container_internal.go2
-rw-r--r--libpod/container_internal_linux.go159
-rw-r--r--libpod/define/checkpoint_restore.go32
-rw-r--r--libpod/oci.go11
-rw-r--r--libpod/oci_conmon_linux.go96
-rw-r--r--libpod/oci_missing.go8
7 files changed, 232 insertions, 100 deletions
diff --git a/libpod/container_api.go b/libpod/container_api.go
index 38223316e..a41bb03df 100644
--- a/libpod/container_api.go
+++ b/libpod/container_api.go
@@ -794,21 +794,29 @@ type ContainerCheckpointOptions struct {
// container no PID 1 will be in the namespace and that is not
// possible.
Pod string
+ // PrintStats tells the API to fill out the statistics about
+ // how much time each component in the stack requires to
+ // checkpoint a container.
+ PrintStats bool
}
// Checkpoint checkpoints a container
-func (c *Container) Checkpoint(ctx context.Context, options ContainerCheckpointOptions) error {
+// The return values *define.CRIUCheckpointRestoreStatistics and int64 (time
+// the runtime needs to checkpoint the container) are only set if
+// options.PrintStats is set to true. Not setting options.PrintStats to true
+// will return nil and 0.
+func (c *Container) Checkpoint(ctx context.Context, options ContainerCheckpointOptions) (*define.CRIUCheckpointRestoreStatistics, int64, error) {
logrus.Debugf("Trying to checkpoint container %s", c.ID())
if options.TargetFile != "" {
if err := c.prepareCheckpointExport(); err != nil {
- return err
+ return nil, 0, err
}
}
if options.WithPrevious {
if err := c.canWithPrevious(); err != nil {
- return err
+ return nil, 0, err
}
}
@@ -817,14 +825,18 @@ func (c *Container) Checkpoint(ctx context.Context, options ContainerCheckpointO
defer c.lock.Unlock()
if err := c.syncContainer(); err != nil {
- return err
+ return nil, 0, err
}
}
return c.checkpoint(ctx, options)
}
// Restore restores a container
-func (c *Container) Restore(ctx context.Context, options ContainerCheckpointOptions) error {
+// The return values *define.CRIUCheckpointRestoreStatistics and int64 (time
+// the runtime needs to restore the container) are only set if
+// options.PrintStats is set to true. Not setting options.PrintStats to true
+// will return nil and 0.
+func (c *Container) Restore(ctx context.Context, options ContainerCheckpointOptions) (*define.CRIUCheckpointRestoreStatistics, int64, error) {
if options.Pod == "" {
logrus.Debugf("Trying to restore container %s", c.ID())
} else {
@@ -835,7 +847,7 @@ func (c *Container) Restore(ctx context.Context, options ContainerCheckpointOpti
defer c.lock.Unlock()
if err := c.syncContainer(); err != nil {
- return err
+ return nil, 0, err
}
}
defer c.newContainerEvent(events.Restore)
diff --git a/libpod/container_internal.go b/libpod/container_internal.go
index de23a4aeb..4bf15be86 100644
--- a/libpod/container_internal.go
+++ b/libpod/container_internal.go
@@ -1089,7 +1089,7 @@ func (c *Container) init(ctx context.Context, retainRetries bool) error {
}
// With the spec complete, do an OCI create
- if err := c.ociRuntime.CreateContainer(c, nil); err != nil {
+ if _, err = c.ociRuntime.CreateContainer(c, nil); err != nil {
// Fedora 31 is carrying a patch to display improved error
// messages to better handle the V2 transition. This is NOT
// upstream in any OCI runtime.
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.
diff --git a/libpod/define/checkpoint_restore.go b/libpod/define/checkpoint_restore.go
new file mode 100644
index 000000000..536bdde9a
--- /dev/null
+++ b/libpod/define/checkpoint_restore.go
@@ -0,0 +1,32 @@
+package define
+
+// This contains values reported by CRIU during
+// checkpointing or restoring.
+// All names are the same as reported by CRIU.
+type CRIUCheckpointRestoreStatistics struct {
+ // Checkpoint values
+ // Time required to freeze/pause/quiesce the processes
+ FreezingTime uint32 `json:"freezing_time,omitempty"`
+ // Time the processes are actually not running during checkpointing
+ FrozenTime uint32 `json:"frozen_time,omitempty"`
+ // Time required to extract memory pages from the processes
+ MemdumpTime uint32 `json:"memdump_time,omitempty"`
+ // Time required to write memory pages to disk
+ MemwriteTime uint32 `json:"memwrite_time,omitempty"`
+ // Number of memory pages CRIU analyzed
+ PagesScanned uint64 `json:"pages_scanned,omitempty"`
+ // Number of memory pages written
+ PagesWritten uint64 `json:"pages_written,omitempty"`
+
+ // Restore values
+ // Number of pages compared during restore
+ PagesCompared uint64 `json:"pages_compared,omitempty"`
+ // Number of COW pages skipped during restore
+ PagesSkippedCow uint64 `json:"pages_skipped_cow,omitempty"`
+ // Time required to fork processes
+ ForkingTime uint32 `json:"forking_time,omitempty"`
+ // Time required to restore
+ RestoreTime uint32 `json:"restore_time,omitempty"`
+ // Number of memory pages restored
+ PagesRestored uint64 `json:"pages_restored,omitempty"`
+}
diff --git a/libpod/oci.go b/libpod/oci.go
index c92d9a077..f45c1a105 100644
--- a/libpod/oci.go
+++ b/libpod/oci.go
@@ -23,7 +23,10 @@ type OCIRuntime interface {
Path() string
// CreateContainer creates the container in the OCI runtime.
- CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) error
+ // The returned int64 contains the microseconds needed to restore
+ // the given container if it is a restore and if restoreOptions.PrintStats
+ // is true. In all other cases the returned int64 is 0.
+ CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) (int64, error)
// UpdateContainerStatus updates the status of the given container.
UpdateContainerStatus(ctr *Container) error
// StartContainer starts the given container.
@@ -101,8 +104,10 @@ type OCIRuntime interface {
// CheckpointContainer checkpoints the given container.
// Some OCI runtimes may not support this - if SupportsCheckpoint()
// returns false, this is not implemented, and will always return an
- // error.
- CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) error
+ // error. If CheckpointOptions.PrintStats is true the first return parameter
+ // contains the number of microseconds the runtime needed to checkpoint
+ // the given container.
+ CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) (int64, error)
// CheckConmonRunning verifies that the given container's Conmon
// instance is still running. Runtimes without Conmon, or systems where
diff --git a/libpod/oci_conmon_linux.go b/libpod/oci_conmon_linux.go
index db906fabb..533a0d78b 100644
--- a/libpod/oci_conmon_linux.go
+++ b/libpod/oci_conmon_linux.go
@@ -183,35 +183,39 @@ func hasCurrentUserMapped(ctr *Container) bool {
}
// CreateContainer creates a container.
-func (r *ConmonOCIRuntime) CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) error {
+func (r *ConmonOCIRuntime) CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) (int64, error) {
// always make the run dir accessible to the current user so that the PID files can be read without
// being in the rootless user namespace.
if err := makeAccessible(ctr.state.RunDir, 0, 0); err != nil {
- return err
+ return 0, err
}
if !hasCurrentUserMapped(ctr) {
for _, i := range []string{ctr.state.RunDir, ctr.runtime.config.Engine.TmpDir, ctr.config.StaticDir, ctr.state.Mountpoint, ctr.runtime.config.Engine.VolumePath} {
if err := makeAccessible(i, ctr.RootUID(), ctr.RootGID()); err != nil {
- return err
+ return 0, err
}
}
// if we are running a non privileged container, be sure to umount some kernel paths so they are not
// bind mounted inside the container at all.
if !ctr.config.Privileged && !rootless.IsRootless() {
- ch := make(chan error)
+ type result struct {
+ restoreDuration int64
+ err error
+ }
+ ch := make(chan result)
go func() {
runtime.LockOSThread()
- err := func() error {
+ restoreDuration, err := func() (int64, error) {
fd, err := os.Open(fmt.Sprintf("/proc/%d/task/%d/ns/mnt", os.Getpid(), unix.Gettid()))
if err != nil {
- return err
+ return 0, err
}
defer errorhandling.CloseQuiet(fd)
// create a new mountns on the current thread
if err = unix.Unshare(unix.CLONE_NEWNS); err != nil {
- return err
+ return 0, err
}
defer func() {
if err := unix.Setns(int(fd.Fd()), unix.CLONE_NEWNS); err != nil {
@@ -224,12 +228,12 @@ func (r *ConmonOCIRuntime) CreateContainer(ctr *Container, restoreOptions *Conta
// changes are propagated to the host.
err = unix.Mount("/sys", "/sys", "none", unix.MS_REC|unix.MS_SLAVE, "")
if err != nil {
- return errors.Wrapf(err, "cannot make /sys slave")
+ return 0, errors.Wrapf(err, "cannot make /sys slave")
}
mounts, err := pmount.GetMounts()
if err != nil {
- return err
+ return 0, err
}
for _, m := range mounts {
if !strings.HasPrefix(m.Mountpoint, "/sys/kernel") {
@@ -237,15 +241,18 @@ func (r *ConmonOCIRuntime) CreateContainer(ctr *Container, restoreOptions *Conta
}
err = unix.Unmount(m.Mountpoint, 0)
if err != nil && !os.IsNotExist(err) {
- return errors.Wrapf(err, "cannot unmount %s", m.Mountpoint)
+ return 0, errors.Wrapf(err, "cannot unmount %s", m.Mountpoint)
}
}
return r.createOCIContainer(ctr, restoreOptions)
}()
- ch <- err
+ ch <- result{
+ restoreDuration: restoreDuration,
+ err: err,
+ }
}()
- err := <-ch
- return err
+ r := <-ch
+ return r.restoreDuration, r.err
}
}
return r.createOCIContainer(ctr, restoreOptions)
@@ -760,9 +767,9 @@ func (r *ConmonOCIRuntime) AttachResize(ctr *Container, newSize define.TerminalS
}
// CheckpointContainer checkpoints the given container.
-func (r *ConmonOCIRuntime) CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) error {
+func (r *ConmonOCIRuntime) CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) (int64, error) {
if err := label.SetSocketLabel(ctr.ProcessLabel()); err != nil {
- return err
+ return 0, err
}
// imagePath is used by CRIU to store the actual checkpoint files
imagePath := ctr.CheckpointPath()
@@ -802,14 +809,25 @@ func (r *ConmonOCIRuntime) CheckpointContainer(ctr *Container, options Container
}
runtimeDir, err := util.GetRuntimeDir()
if err != nil {
- return err
+ return 0, err
}
if err = os.Setenv("XDG_RUNTIME_DIR", runtimeDir); err != nil {
- return errors.Wrapf(err, "cannot set XDG_RUNTIME_DIR")
+ return 0, errors.Wrapf(err, "cannot set XDG_RUNTIME_DIR")
}
args = append(args, ctr.ID())
logrus.Debugf("the args to checkpoint: %s %s", r.path, strings.Join(args, " "))
- return utils.ExecCmdWithStdStreams(os.Stdin, os.Stdout, os.Stderr, nil, r.path, args...)
+
+ runtimeCheckpointStarted := time.Now()
+ err = utils.ExecCmdWithStdStreams(os.Stdin, os.Stdout, os.Stderr, nil, r.path, args...)
+
+ runtimeCheckpointDuration := func() int64 {
+ if options.PrintStats {
+ return time.Since(runtimeCheckpointStarted).Microseconds()
+ }
+ return 0
+ }()
+
+ return runtimeCheckpointDuration, err
}
func (r *ConmonOCIRuntime) CheckConmonRunning(ctr *Container) (bool, error) {
@@ -984,23 +1002,23 @@ func (r *ConmonOCIRuntime) getLogTag(ctr *Container) (string, error) {
}
// createOCIContainer generates this container's main conmon instance and prepares it for starting
-func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) error {
+func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) (int64, error) {
var stderrBuf bytes.Buffer
runtimeDir, err := util.GetRuntimeDir()
if err != nil {
- return err
+ return 0, err
}
parentSyncPipe, childSyncPipe, err := newPipe()
if err != nil {
- return errors.Wrapf(err, "error creating socket pair")
+ return 0, errors.Wrapf(err, "error creating socket pair")
}
defer errorhandling.CloseQuiet(parentSyncPipe)
childStartPipe, parentStartPipe, err := newPipe()
if err != nil {
- return errors.Wrapf(err, "error creating socket pair for start pipe")
+ return 0, errors.Wrapf(err, "error creating socket pair for start pipe")
}
defer errorhandling.CloseQuiet(parentStartPipe)
@@ -1012,12 +1030,12 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
logTag, err := r.getLogTag(ctr)
if err != nil {
- return err
+ return 0, err
}
if ctr.config.CgroupsMode == cgroupSplit {
if err := utils.MoveUnderCgroupSubtree("runtime"); err != nil {
- return err
+ return 0, err
}
}
@@ -1068,7 +1086,7 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
} else {
fds, err := strconv.Atoi(val)
if err != nil {
- return fmt.Errorf("converting LISTEN_FDS=%s: %w", val, err)
+ return 0, fmt.Errorf("converting LISTEN_FDS=%s: %w", val, err)
}
preserveFDs = uint(fds)
}
@@ -1149,7 +1167,7 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
if r.reservePorts && !rootless.IsRootless() && !ctr.config.NetMode.IsSlirp4netns() {
ports, err := bindPorts(ctr.config.PortMappings)
if err != nil {
- return err
+ return 0, err
}
filesToClose = append(filesToClose, ports...)
@@ -1165,12 +1183,12 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
if havePortMapping {
ctr.rootlessPortSyncR, ctr.rootlessPortSyncW, err = os.Pipe()
if err != nil {
- return errors.Wrapf(err, "failed to create rootless port sync pipe")
+ return 0, errors.Wrapf(err, "failed to create rootless port sync pipe")
}
}
ctr.rootlessSlirpSyncR, ctr.rootlessSlirpSyncW, err = os.Pipe()
if err != nil {
- return errors.Wrapf(err, "failed to create rootless network sync pipe")
+ return 0, errors.Wrapf(err, "failed to create rootless network sync pipe")
}
} else {
if ctr.rootlessSlirpSyncR != nil {
@@ -1189,22 +1207,25 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
cmd.ExtraFiles = append(cmd.ExtraFiles, ctr.rootlessPortSyncW)
}
}
-
+ var runtimeRestoreStarted time.Time
+ if restoreOptions != nil {
+ runtimeRestoreStarted = time.Now()
+ }
err = startCommandGivenSelinux(cmd, ctr)
// regardless of whether we errored or not, we no longer need the children pipes
childSyncPipe.Close()
childStartPipe.Close()
if err != nil {
- return err
+ return 0, err
}
if err := r.moveConmonToCgroupAndSignal(ctr, cmd, parentStartPipe); err != nil {
- return err
+ return 0, err
}
/* Wait for initial setup and fork, and reap child */
err = cmd.Wait()
if err != nil {
- return err
+ return 0, err
}
pid, err := readConmonPipeData(parentSyncPipe, ociLog)
@@ -1212,7 +1233,7 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
if err2 := r.DeleteContainer(ctr); err2 != nil {
logrus.Errorf("Removing container %s from runtime after creation failed", ctr.ID())
}
- return err
+ return 0, err
}
ctr.state.PID = pid
@@ -1238,13 +1259,20 @@ func (r *ConmonOCIRuntime) createOCIContainer(ctr *Container, restoreOptions *Co
}
}
+ runtimeRestoreDuration := func() int64 {
+ if restoreOptions != nil && restoreOptions.PrintStats {
+ return time.Since(runtimeRestoreStarted).Microseconds()
+ }
+ return 0
+ }()
+
// These fds were passed down to the runtime. Close them
// and not interfere
for _, f := range filesToClose {
errorhandling.CloseQuiet(f)
}
- return nil
+ return runtimeRestoreDuration, nil
}
// configureConmonEnv gets the environment values to add to conmon's exec struct
diff --git a/libpod/oci_missing.go b/libpod/oci_missing.go
index fcf2ffca8..65ff818b4 100644
--- a/libpod/oci_missing.go
+++ b/libpod/oci_missing.go
@@ -66,8 +66,8 @@ func (r *MissingRuntime) Path() string {
}
// CreateContainer is not available as the runtime is missing
-func (r *MissingRuntime) CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) error {
- return r.printError()
+func (r *MissingRuntime) CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) (int64, error) {
+ return 0, r.printError()
}
// UpdateContainerStatus is not available as the runtime is missing
@@ -153,8 +153,8 @@ func (r *MissingRuntime) ExecUpdateStatus(ctr *Container, sessionID string) (boo
}
// CheckpointContainer is not available as the runtime is missing
-func (r *MissingRuntime) CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) error {
- return r.printError()
+func (r *MissingRuntime) CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) (int64, error) {
+ return 0, r.printError()
}
// CheckConmonRunning is not available as the runtime is missing
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-10-01 16:51:05 +0000