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Merge pull request #12332 from henry118/parallel-unpack

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Implement parallel unpack
This commit is contained in:
Derek McGowan
2025-10-24 20:16:52 +00:00
committed by GitHub
parent 9f9510a47d 0198b87fcf
commit 2e747a0ae7
26 changed files with 825 additions and 587 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
api/next.pb.txt
View File

@@ -6438,6 +6438,13 @@ file {
type_name: ".containerd.services.snapshots.v1.CommitSnapshotRequest.LabelsEntry"
json_name: "labels"
}
field {
name: "parent"
number: 5
label: LABEL_OPTIONAL
type: TYPE_STRING
json_name: "parent"
}
nested_type {
name: "LabelsEntry"
field {

304
api/services/snapshots/v1/snapshots.pb.go
View File

@@ -502,6 +502,7 @@ type CommitSnapshotRequest struct {
//
// The combined size of a key/value pair cannot exceed 4096 bytes.
Labels map[string]string `protobuf:"bytes,4,rep,name=labels,proto3" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
Parent string `protobuf:"bytes,5,opt,name=parent,proto3" json:"parent,omitempty"`
}
func (x *CommitSnapshotRequest) Reset() {
@@ -564,6 +565,13 @@ func (x *CommitSnapshotRequest) GetLabels() map[string]string {
return nil
}
func (x *CommitSnapshotRequest) GetParent() string {
if x != nil {
return x.Parent
}
return ""
}
type StatSnapshotRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@@ -1216,7 +1224,7 @@ var file_github_com_containerd_containerd_api_services_snapshots_v1_snapshots_pr
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@@ -1228,160 +1236,162 @@ var file_github_com_containerd_containerd_api_services_snapshots_v1_snapshots_pr
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}
var (

2
api/services/snapshots/v1/snapshots.proto
View File

@@ -92,6 +92,8 @@ message CommitSnapshotRequest {
//
// The combined size of a key/value pair cannot exceed 4096 bytes.
map<string, string> labels = 4;
string parent = 5;
}
message StatSnapshotRequest {

11
client/image.go
View File

@@ -36,6 +36,7 @@ import (
"github.com/opencontainers/go-digest"
"github.com/opencontainers/image-spec/identity"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"golang.org/x/sync/semaphore"
)
// Image describes an image used by containers
@@ -258,6 +259,8 @@ type UnpackConfig struct {
// in-flight fetch request or unpack handler for a given descriptor's
// digest or chain ID.
DuplicationSuppressor kmutex.KeyedLocker
// Limiter is used to limit concurrent unpacks
Limiter *semaphore.Weighted
}
// UnpackOpt provides configuration for unpack
@@ -287,6 +290,14 @@ func WithUnpackApplyOpts(opts ...diff.ApplyOpt) UnpackOpt {
}
}
// WithUnpackLimiter sets a semaphore to limit concurrent unpacks.
func WithUnpackLimiter(limiter *semaphore.Weighted) UnpackOpt {
return func(ctx context.Context, uc *UnpackConfig) error {
uc.Limiter = limiter
return nil
}
}
func (i *image) Unpack(ctx context.Context, snapshotterName string, opts ...UnpackOpt) error {
ctx, done, err := i.client.WithLease(ctx)
if err != nil {

22
client/pull.go
View File

@@ -97,6 +97,12 @@ func (c *Client) Pull(ctx context.Context, ref string, opts ...RemoteOpt) (_ Ima
return nil, fmt.Errorf("unable to resolve snapshotter: %w", err)
}
span.SetAttributes(tracing.Attribute("snapshotter.name", snapshotterName))
snCapabilities, err := c.GetSnapshotterCapabilities(ctx, snapshotterName)
if err != nil {
return nil, fmt.Errorf("unable to get snapshotter capabilities: %w", err)
}
var uconfig UnpackConfig
for _, opt := range pullCtx.UnpackOpts {
if err := opt(ctx, &uconfig); err != nil {
@@ -110,17 +116,21 @@ func (c *Client) Pull(ctx context.Context, ref string, opts ...RemoteOpt) (_ Ima
// Check client Unpack config
platform := unpack.Platform{
Platform: platformMatcher,
SnapshotterKey: snapshotterName,
Snapshotter: c.SnapshotService(snapshotterName),
SnapshotOpts: append(pullCtx.SnapshotterOpts, uconfig.SnapshotOpts...),
Applier: c.DiffService(),
ApplyOpts: uconfig.ApplyOpts,
Platform: platformMatcher,
SnapshotterKey: snapshotterName,
Snapshotter: c.SnapshotService(snapshotterName),
SnapshotOpts: append(pullCtx.SnapshotterOpts, uconfig.SnapshotOpts...),
Applier: c.DiffService(),
ApplyOpts: uconfig.ApplyOpts,
SnapshotterCapabilities: snCapabilities,
}
uopts := []unpack.UnpackerOpt{unpack.WithUnpackPlatform(platform)}
if uconfig.DuplicationSuppressor != nil {
uopts = append(uopts, unpack.WithDuplicationSuppressor(uconfig.DuplicationSuppressor))
}
if uconfig.Limiter != nil {
uopts = append(uopts, unpack.WithUnpackLimiter(uconfig.Limiter))
}
unpacker, err = unpack.NewUnpacker(ctx, c.ContentStore(), uopts...)
if err != nil {
return nil, fmt.Errorf("unable to initialize unpacker: %w", err)

24
core/metadata/snapshot.go
View File

@@ -540,8 +540,10 @@ func (s *snapshotter) Commit(ctx context.Context, name, key string, opts ...snap
}
var (
bname string
rerr error
bname string
bparent string
rebase bool
rerr error
)
if err := update(ctx, s.db, func(tx *bolt.Tx) error {
bkt := getSnapshotterBucket(tx, ns, s.name)
@@ -581,6 +583,13 @@ func (s *snapshotter) Commit(ctx context.Context, name, key string, opts ...snap
}
parent := obkt.Get(bucketKeyParent)
if len(parent) == 0 && len(base.Parent) > 0 {
parent = []byte(base.Parent)
if err = obkt.Put(bucketKeyParent, parent); err != nil {
return err
}
rebase = true
}
if len(parent) > 0 {
pbkt := bkt.Bucket(parent)
if pbkt == nil {
@@ -601,6 +610,8 @@ func (s *snapshotter) Commit(ctx context.Context, name, key string, opts ...snap
if err := bbkt.Put(bucketKeyParent, parent); err != nil {
return err
}
bparent = string(pbkt.Get(bucketKeyName))
}
ts := time.Now().UTC()
if err := boltutil.WriteTimestamps(bbkt, ts, ts); err != nil {
@@ -617,7 +628,12 @@ func (s *snapshotter) Commit(ctx context.Context, name, key string, opts ...snap
return err
}
inheritedOpt := snapshots.WithLabels(snapshots.FilterInheritedLabels(base.Labels))
inheritedOpt := []snapshots.Opt{
snapshots.WithLabels(snapshots.FilterInheritedLabels(base.Labels)),
}
if rebase {
inheritedOpt = append(inheritedOpt, snapshots.WithParent(bparent))
}
// NOTE: Backend snapshotters should commit fast and reliably to
// prevent metadata store locking and minimizing rollbacks.
@@ -625,7 +641,7 @@ func (s *snapshotter) Commit(ctx context.Context, name, key string, opts ...snap
// risk of the committed keys becoming out of sync. If this operation
// succeed and the overall transaction fails then the risk of out of
// sync data is higher and may require manual cleanup.
if err := s.Snapshotter.Commit(ctx, nameKey, bkey, inheritedOpt); err != nil {
if err := s.Snapshotter.Commit(ctx, nameKey, bkey, inheritedOpt...); err != nil {
if errdefs.IsNotFound(err) {
log.G(ctx).WithField("snapshotter", s.name).WithField("key", key).WithError(err).Error("uncommittable snapshot: missing in backend, snapshot should be removed")
}

1
core/snapshots/proxy/proxy.go
View File

@@ -140,6 +140,7 @@ func (p *proxySnapshotter) Commit(ctx context.Context, name, key string, opts ..
Snapshotter: p.snapshotterName,
Name: name,
Key: key,
Parent: local.Parent,
Labels: local.Labels,
})
return errgrpc.ToNative(err)

8
core/snapshots/snapshotter.go
View File

@@ -395,3 +395,11 @@ func FilterInheritedLabels(labels map[string]string) map[string]string {
}
return filtered
}
// WithParent sets the parent of a snapshot
func WithParent(parent string) Opt {
return func(info *Info) error {
info.Parent = parent
return nil
}
}

10
core/snapshots/storage/bolt.go
View File

@@ -386,6 +386,16 @@ func CommitActive(ctx context.Context, key, name string, usage snapshots.Usage,
// Replace labels, do not inherit
si.Labels = base.Labels
// If the snapshot didn't have a parent when created, allow it
// to be rebased on a parent on commit.
if si.Parent != base.Parent {
if len(si.Parent) == 0 {
si.Parent = base.Parent
} else if len(base.Parent) > 0 {
return fmt.Errorf("cannot change parent of active snapshot %q on commit: %w", key, errdefs.ErrInvalidArgument)
}
}
if err := putSnapshot(dbkt, id, si); err != nil {
return err
}

61
core/snapshots/storage/metastore_test.go
View File

@@ -58,6 +58,7 @@ func MetaStoreSuite(t *testing.T, name string, meta func(root string) (*MetaStor
t.Run("RemoveNotExist", makeTest(t, name, meta, inWriteTransaction(testRemoveNotExist)))
t.Run("RemoveWithChildren", makeTest(t, name, meta, inWriteTransaction(testRemoveWithChildren)))
t.Run("ParentIDs", makeTest(t, name, meta, inWriteTransaction(testParents)))
t.Run("Rebase", makeTest(t, name, meta, inWriteTransaction(testRebase)))
}
// makeTest creates a testsuite with a writable transaction
@@ -640,3 +641,63 @@ func testParents(ctx context.Context, t *testing.T, ms *MetaStore) {
}
}
}
func testRebase(ctx context.Context, t *testing.T, ms *MetaStore) {
if err := basePopulate(ctx, ms); err != nil {
t.Fatalf("Populate failed: %+v", err)
}
testcases := []struct {
Key string
Name string
OldParent string
NewParent string
ExpectErr bool
}{
{"rebase-active-1", "rebase-committed-1", "", "committed-1", false},
{"rebase-active-2", "rebase-committed-2", "committed-1", "committed-1", false},
{"rebase-active-3", "rebase-committed-3", "", "nonexist", true},
{"rebase-active-4", "rebase-committed-4", "committed-1", "", false},
}
for _, tc := range testcases {
_, err := CreateSnapshot(ctx, snapshots.KindActive, tc.Key, tc.OldParent)
if err != nil {
t.Fatal(err)
}
id, err := CommitActive(ctx, tc.Key, tc.Name, snapshots.Usage{}, snapshots.WithParent(tc.NewParent))
if tc.ExpectErr {
if err == nil {
t.Fatalf("Expected rebase of %s to fail", tc.Key)
}
continue
}
if err != nil {
t.Fatal(err)
}
view := fmt.Sprintf("%s-view", tc.Name)
_, err = CreateSnapshot(ctx, snapshots.KindView, view, tc.Name)
if err != nil {
t.Fatal(err)
}
parent := tc.NewParent
if len(parent) == 0 {
parent = tc.OldParent
}
pid, _, _, err := GetInfo(ctx, parent)
if err != nil {
t.Fatal(err)
}
s, err := GetSnapshot(ctx, view)
if err != nil {
t.Fatal(err)
}
if len(s.ParentIDs) != 2 || s.ParentIDs[0] != id || s.ParentIDs[1] != pid {
t.Fatalf("Unexpected parent IDs for %s: %+v", tc.Name, s.ParentIDs)
}
_, _, err = Remove(ctx, tc.Name)
if err == nil {
t.Fatalf("Expected removal of parent %s to fail", tc.Name)
}
}
}

4
core/transfer/local/pull.go
View File

@@ -217,6 +217,10 @@ func (ts *localTransferService) pull(ctx context.Context, ir transfer.ImageFetch
uopts = append(uopts, unpack.WithDuplicationSuppressor(ts.config.DuplicationSuppressor))
}
if ts.limiterP != nil {
uopts = append(uopts, unpack.WithUnpackLimiter(ts.limiterP))
}
if enableRemoteSnapshotAnnotations {
handler = snpkg.AppendInfoHandlerWrapper(name)(handler)
}

8
core/transfer/local/transfer.go
View File

@@ -42,6 +42,8 @@ type localTransferService struct {
limiterU *semaphore.Weighted
// limiter for download operation
limiterD *semaphore.Weighted
// limiter for unpack operation
limiterP *semaphore.Weighted
config TransferConfig
}
@@ -57,6 +59,9 @@ func NewTransferService(cs content.Store, is images.Store, tc TransferConfig) tr
if tc.MaxConcurrentDownloads > 0 {
ts.limiterD = semaphore.NewWeighted(int64(tc.MaxConcurrentDownloads))
}
if tc.MaxConcurrentUnpacks > 1 {
ts.limiterP = semaphore.NewWeighted(int64(tc.MaxConcurrentUnpacks))
}
return ts
}
@@ -181,6 +186,9 @@ type TransferConfig struct {
// MaxConcurrentUploadedLayers is the max concurrent uploads for push
MaxConcurrentUploadedLayers int
// MaxConcurrentUnpacks controls the number of concurrent unpacks
MaxConcurrentUnpacks int
// DuplicationSuppressor is used to make sure that there is only one
// in-flight fetch request or unpack handler for a given descriptor's
// digest or chain ID.

285
core/unpack/unpacker.go
View File

@@ -23,6 +23,7 @@ import (
"encoding/json"
"errors"
"fmt"
"slices"
"strconv"
"sync"
"sync/atomic"
@@ -64,6 +65,8 @@ type unpackerConfig struct {
limiter Limiter
duplicationSuppressor KeyedLocker
unpackLimiter Limiter
}
// Platform represents a platform-specific unpack configuration which includes
@@ -71,10 +74,11 @@ type unpackerConfig struct {
type Platform struct {
Platform platforms.Matcher
SnapshotterKey string
Snapshotter snapshots.Snapshotter
SnapshotOpts []snapshots.Opt
SnapshotterExports map[string]string
SnapshotterKey string
Snapshotter snapshots.Snapshotter
SnapshotOpts []snapshots.Opt
SnapshotterExports map[string]string
SnapshotterCapabilities []string
Applier diff.Applier
ApplyOpts []diff.ApplyOpt
@@ -143,6 +147,13 @@ func WithDuplicationSuppressor(d KeyedLocker) UnpackerOpt {
})
}
func WithUnpackLimiter(l Limiter) UnpackerOpt {
return UnpackerOpt(func(c *unpackerConfig) error {
c.unpackLimiter = l
return nil
})
}
// Unpacker unpacks images by hooking into the image handler process.
// Unpacks happen in the backgrounds and waited on to complete.
type Unpacker struct {
@@ -280,6 +291,14 @@ type unpackConfig struct {
RootFS ocispec.RootFS `json:"rootfs"`
}
type unpackStatus struct {
err error
desc ocispec.Descriptor
bottomF func(bool) error
span *tracing.Span
startAt time.Time
}
func (u *Unpacker) unpack(
h images.Handler,
config ocispec.Descriptor,
@@ -336,7 +355,9 @@ func (u *Unpacker) unpack(
fetchOffset int
fetchC []chan struct{}
fetchErr chan error
fetchErr []chan error
parallel = u.supportParallel(unpack)
)
// If there is an early return, ensure any ongoing
@@ -349,18 +370,26 @@ func (u *Unpacker) unpack(
copy(chainIDs, diffIDs)
chainIDs = identity.ChainIDs(chainIDs)
doUnpackFn := func(i int, desc ocispec.Descriptor) error {
var parent string
if i > 0 {
topHalf := func(i int, desc ocispec.Descriptor, span *tracing.Span, startAt time.Time) (<-chan *unpackStatus, error) {
var (
err error
parent string
chainID string
)
if i > 0 && !parallel {
parent = chainIDs[i-1].String()
}
chainID := chainIDs[i].String()
chainID = chainIDs[i].String()
unlock, err := u.lockSnChainID(ctx, chainID, unpack.SnapshotterKey)
if err != nil {
return err
return nil, err
}
defer unlock()
defer func() {
if err != nil {
unlock()
}
}()
// inherits annotations which are provided as snapshot labels.
snapshotLabels := snapshots.FilterInheritedLabels(desc.Annotations)
@@ -383,23 +412,23 @@ func (u *Unpacker) unpack(
if errdefs.IsAlreadyExists(err) {
if _, err := sn.Stat(ctx, chainID); err != nil {
if !errdefs.IsNotFound(err) {
return fmt.Errorf("failed to stat snapshot %s: %w", chainID, err)
return nil, fmt.Errorf("failed to stat snapshot %s: %w", chainID, err)
}
// Try again, this should be rare, log it
log.G(ctx).WithField("key", key).WithField("chainid", chainID).Debug("extraction snapshot already exists, chain id not found")
} else {
// no need to handle, snapshot now found with chain id
return nil
return nil, nil
}
} else {
return fmt.Errorf("failed to prepare extraction snapshot %q: %w", key, err)
return nil, fmt.Errorf("failed to prepare extraction snapshot %q: %w", key, err)
}
} else {
break
}
}
if err != nil {
return fmt.Errorf("unable to prepare extraction snapshot: %w", err)
return nil, fmt.Errorf("unable to prepare extraction snapshot: %w", err)
}
// Abort the snapshot if commit does not happen
@@ -410,66 +439,137 @@ func (u *Unpacker) unpack(
}
if fetchErr == nil {
fetchErr = make(chan error, 1)
fetchOffset = i
fetchC = make([]chan struct{}, len(layers)-fetchOffset)
for i := range fetchC {
n := len(layers) - fetchOffset
fetchErr = make([]chan error, n)
fetchC = make([]chan struct{}, n)
for i := range n {
fetchC[i] = make(chan struct{})
fetchErr[i] = make(chan error, 1)
}
go func(i int) {
err := u.fetch(ctx, h, layers[i:], fetchC)
if err != nil {
fetchErr <- err
for _, fc := range fetchErr {
fc <- err
close(fc)
}
}
close(fetchErr)
}(i)
}
select {
case <-ctx.Done():
if err = u.acquire(ctx, u.unpackLimiter); err != nil {
cleanup.Do(ctx, abort)
return ctx.Err()
case err := <-fetchErr:
return nil, err
}
resCh := make(chan *unpackStatus, 1)
go func() {
defer func() {
u.release(u.unpackLimiter)
close(resCh)
}()
status := &unpackStatus{
desc: desc,
span: span,
startAt: startAt,
bottomF: func(shouldAbort bool) error {
defer unlock()
if shouldAbort {
cleanup.Do(ctx, abort)
return nil
}
if i > 0 && parallel {
parent = chainIDs[i-1].String()
opts = append(opts, snapshots.WithParent(parent))
}
if err = sn.Commit(ctx, chainID, key, opts...); err != nil {
cleanup.Do(ctx, abort)
if errdefs.IsAlreadyExists(err) {
return nil
}
return fmt.Errorf("failed to commit snapshot %s: %w", key, err)
}
// Set the uncompressed label after the uncompressed
// digest has been verified through apply.
cinfo := content.Info{
Digest: desc.Digest,
Labels: map[string]string{
labels.LabelUncompressed: diffIDs[i].String(),
},
}
if _, err := cs.Update(ctx, cinfo, "labels."+labels.LabelUncompressed); err != nil {
return err
}
return nil
},
}
select {
case <-ctx.Done():
cleanup.Do(ctx, abort)
status.err = ctx.Err()
resCh <- status
return
case err := <-fetchErr[i-fetchOffset]:
if err != nil {
cleanup.Do(ctx, abort)
status.err = err
resCh <- status
return
}
case <-fetchC[i-fetchOffset]:
}
diff, err := a.Apply(ctx, desc, mounts, unpack.ApplyOpts...)
if err != nil {
cleanup.Do(ctx, abort)
return err
status.err = fmt.Errorf("failed to extract layer (%s %s) to %s as %q: %w", desc.MediaType, desc.Digest, unpack.SnapshotterKey, key, err)
resCh <- status
return
}
case <-fetchC[i-fetchOffset]:
}
diff, err := a.Apply(ctx, desc, mounts, unpack.ApplyOpts...)
if err != nil {
cleanup.Do(ctx, abort)
return fmt.Errorf("failed to extract layer (%s %s) to %s as %q: %w", desc.MediaType, desc.Digest, unpack.SnapshotterKey, key, err)
}
if diff.Digest != diffIDs[i] {
cleanup.Do(ctx, abort)
return fmt.Errorf("wrong diff id calculated on extraction %q", diffIDs[i])
}
if err = sn.Commit(ctx, chainID, key, opts...); err != nil {
cleanup.Do(ctx, abort)
if errdefs.IsAlreadyExists(err) {
return nil
if diff.Digest != diffIDs[i] {
cleanup.Do(ctx, abort)
status.err = fmt.Errorf("wrong diff id %q calculated on extraction %q, desc %q", diff.Digest, diffIDs[i], desc.Digest)
resCh <- status
return
}
return fmt.Errorf("failed to commit snapshot %s: %w", key, err)
}
// Set the uncompressed label after the uncompressed
// digest has been verified through apply.
cinfo := content.Info{
Digest: desc.Digest,
Labels: map[string]string{
labels.LabelUncompressed: diff.Digest.String(),
},
}
if _, err := cs.Update(ctx, cinfo, "labels."+labels.LabelUncompressed); err != nil {
return err
}
return nil
resCh <- status
}()
return resCh, nil
}
bottomHalf := func(s *unpackStatus, prevErrs error) error {
var err error
if s.err != nil {
s.bottomF(true)
err = s.err
} else if prevErrs != nil {
s.bottomF(true)
err = fmt.Errorf("aborted")
} else {
err = s.bottomF(false)
}
s.span.SetStatus(err)
s.span.End()
if err == nil {
log.G(ctx).WithFields(log.Fields{
"layer": s.desc.Digest,
"duration": time.Since(s.startAt),
}).Debug("layer unpacked")
}
return err
}
var statusChans []<-chan *unpackStatus
for i, desc := range layers {
_, layerSpan := tracing.StartSpan(ctx, tracing.Name(unpackSpanPrefix, "unpackLayer"))
unpackLayerStart := time.Now()
@@ -478,16 +578,41 @@ func (u *Unpacker) unpack(
tracing.Attribute("layer.media.size", desc.Size),
tracing.Attribute("layer.media.digest", desc.Digest.String()),
)
if err := doUnpackFn(i, desc); err != nil {
layerSpan.SetStatus(err)
layerSpan.End()
return err
statusCh, err := topHalf(i, desc, layerSpan, unpackLayerStart)
if err != nil {
if parallel {
break
} else {
layerSpan.SetStatus(err)
layerSpan.End()
return err
}
}
if statusCh == nil {
// nothing to do, already exists
layerSpan.End()
continue
}
if parallel {
statusChans = append(statusChans, statusCh)
} else {
if err = bottomHalf(<-statusCh, nil); err != nil {
return err
}
}
}
// In parallel mode, snapshots still need to be committed and rebased sequentially
if parallel {
var errs error
for _, sc := range statusChans {
if err := bottomHalf(<-sc, errs); err != nil {
errs = errors.Join(errs, err)
}
}
if errs != nil {
return errs
}
layerSpan.End()
log.G(ctx).WithFields(log.Fields{
"layer": desc.Digest,
"duration": time.Since(unpackLayerStart),
}).Debug("layer unpacked")
}
var chainID string
@@ -507,6 +632,7 @@ func (u *Unpacker) unpack(
log.G(ctx).WithFields(log.Fields{
"config": config.Digest,
"chainID": chainID,
"parallel": parallel,
"duration": time.Since(unpackStart),
}).Debug("image unpacked")
@@ -527,7 +653,7 @@ func (u *Unpacker) fetch(ctx context.Context, h images.Handler, layers []ocispec
ch = done[i]
}
if err := u.acquire(ctx); err != nil {
if err := u.acquire(ctx, u.limiter); err != nil {
return err
}
@@ -536,14 +662,14 @@ func (u *Unpacker) fetch(ctx context.Context, h images.Handler, layers []ocispec
unlock, err := u.lockBlobDescriptor(ctx2, desc)
if err != nil {
u.release()
u.release(u.limiter)
return err
}
_, err = h.Handle(ctx2, desc)
unlock()
u.release()
u.release(u.limiter)
if err != nil && !errors.Is(err, images.ErrSkipDesc) {
return err
@@ -559,18 +685,18 @@ func (u *Unpacker) fetch(ctx context.Context, h images.Handler, layers []ocispec
return eg.Wait()
}
func (u *Unpacker) acquire(ctx context.Context) error {
if u.limiter == nil {
func (u *Unpacker) acquire(ctx context.Context, l Limiter) error {
if l == nil {
return nil
}
return u.limiter.Acquire(ctx, 1)
return l.Acquire(ctx, 1)
}
func (u *Unpacker) release() {
if u.limiter == nil {
func (u *Unpacker) release(l Limiter) {
if l == nil {
return
}
u.limiter.Release(1)
l.Release(1)
}
func (u *Unpacker) lockSnChainID(ctx context.Context, chainID, snapshotter string) (func(), error) {
@@ -603,6 +729,17 @@ func (u *Unpacker) makeBlobDescriptorKey(desc ocispec.Descriptor) string {
return fmt.Sprintf("blob://%v", desc.Digest)
}
func (u *Unpacker) supportParallel(unpack *Platform) bool {
if u.unpackLimiter == nil {
return false
}
if !slices.Contains(unpack.SnapshotterCapabilities, "rebase") {
log.L.Infof("snapshotter does not support rebase capability, unpacking will be sequential")
return false
}
return true
}
func uniquePart() string {
t := time.Now()
var b [3]byte

2
go.mod
View File

@@ -173,3 +173,5 @@ exclude (
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2
)
replace github.com/containerd/containerd/api => ./api

2
go.sum
View File

@@ -41,8 +41,6 @@ github.com/containerd/cgroups/v3 v3.0.5 h1:44na7Ud+VwyE7LIoJ8JTNQOa549a8543BmzaJ
github.com/containerd/cgroups/v3 v3.0.5/go.mod h1:SA5DLYnXO8pTGYiAHXz94qvLQTKfVM5GEVisn4jpins=
github.com/containerd/console v1.0.5 h1:R0ymNeydRqH2DmakFNdmjR2k0t7UPuiOV/N/27/qqsc=
github.com/containerd/console v1.0.5/go.mod h1:YynlIjWYF8myEu6sdkwKIvGQq+cOckRm6So2avqoYAk=
github.com/containerd/containerd/api v1.10.0-beta.1 h1:ZFYRgoKSqmUviPAyc+rFNblKklYohvEtptVpnTZgbsc=
github.com/containerd/containerd/api v1.10.0-beta.1/go.mod h1:GhghKFmTR3hNtyznBoQ0EMWr9ju5AqHjcZPsSpTKutI=
github.com/containerd/continuity v0.4.5 h1:ZRoN1sXq9u7V6QoHMcVWGhOwDFqZ4B9i5H6un1Wh0x4=
github.com/containerd/continuity v0.4.5/go.mod h1:/lNJvtJKUQStBzpVQ1+rasXO1LAWtUQssk28EZvJ3nE=
github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=

22
integration/client/client_test.go
View File

@@ -33,6 +33,7 @@ import (
"github.com/opencontainers/runtime-spec/specs-go/features"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel"
"golang.org/x/sync/semaphore"
. "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/core/images"
@@ -474,6 +475,27 @@ func TestImagePullWithTracing(t *testing.T) {
}
func TestImagePullWithConcurrentUnpacks(t *testing.T) {
client, err := newClient(t, address)
if err != nil {
t.Fatal(err)
}
defer client.Close()
ctx, cancel := testContext(t)
defer cancel()
_, err = client.Pull(ctx, testMultiLayeredImage,
WithPlatformMatcher(platforms.Default()),
WithPullUnpack,
WithUnpackOpts([]UnpackOpt{WithUnpackLimiter(semaphore.NewWeighted(3))}),
)
defer client.ImageService().Delete(ctx, testMultiLayeredImage, images.SynchronousDelete())
if err != nil {
t.Fatal(err)
}
}
func TestClientReconnect(t *testing.T) {
t.Parallel()

47
integration/client/container_idmapped_linux_test.go
View File

@@ -23,11 +23,13 @@ import (
"testing"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/core/images"
"github.com/containerd/containerd/v2/core/snapshots"
"github.com/containerd/containerd/v2/internal/userns"
"github.com/containerd/containerd/v2/pkg/oci"
"github.com/containerd/containerd/v2/plugins/snapshots/overlay/overlayutils"
"github.com/opencontainers/runtime-spec/specs-go"
"golang.org/x/sync/semaphore"
)
func TestIDMappedOverlay(t *testing.T) {
@@ -36,10 +38,11 @@ func TestIDMappedOverlay(t *testing.T) {
}
for name, test := range map[string]struct {
idMap userns.IDMap
snapOpt func(idMap userns.IDMap) snapshots.Opt
expUID uint32
expGID uint32
idMap userns.IDMap
snapOpt func(idMap userns.IDMap) snapshots.Opt
unpackOpt []containerd.UnpackOpt
expUID uint32
expGID uint32
}{
"TestIDMappedOverlay-SingleMapping": {
idMap: userns.IDMap{
@@ -100,6 +103,35 @@ func TestIDMappedOverlay(t *testing.T) {
expUID: 33,
expGID: 66,
},
"TestIDMappedOverlay-SingleMapping-ParallelUnpack": {
idMap: userns.IDMap{
UidMap: []specs.LinuxIDMapping{
{
ContainerID: 0,
HostID: 33,
Size: 65535,
},
},
GidMap: []specs.LinuxIDMapping{
{
ContainerID: 0,
HostID: 33,
Size: 65535,
},
},
},
snapOpt: func(idMap userns.IDMap) snapshots.Opt {
return containerd.WithRemapperLabels(
idMap.UidMap[0].ContainerID, idMap.UidMap[0].HostID,
idMap.GidMap[0].ContainerID, idMap.GidMap[0].HostID,
idMap.UidMap[0].Size)
},
unpackOpt: []containerd.UnpackOpt{
containerd.WithUnpackLimiter(semaphore.NewWeighted(3)),
},
expUID: 33,
expGID: 33,
},
} {
t.Run(name, func(t *testing.T) {
var (
@@ -117,7 +149,7 @@ func TestIDMappedOverlay(t *testing.T) {
}
defer client.Close()
image, err := client.Pull(ctx, testMultiLayeredImage, containerd.WithPullUnpack)
image, err := client.Pull(ctx, testMultiLayeredImage, containerd.WithPullUnpack, containerd.WithUnpackOpts(test.unpackOpt))
if err != nil {
t.Fatal(err)
}
@@ -134,7 +166,10 @@ func TestIDMappedOverlay(t *testing.T) {
if err != nil {
t.Fatal(err)
}
defer container.Delete(ctx, containerd.WithSnapshotCleanup)
defer func() {
container.Delete(ctx, containerd.WithSnapshotCleanup)
client.ImageService().Delete(ctx, testMultiLayeredImage, images.SynchronousDelete())
}()
t.Logf("container %s created!", id)
o := client.SnapshotService(snapshotter)

3
plugins/services/snapshots/service.go
View File

@@ -145,6 +145,9 @@ func (s *service) Commit(ctx context.Context, cr *snapshotsapi.CommitSnapshotReq
if cr.Labels != nil {
opts = append(opts, snapshots.WithLabels(cr.Labels))
}
if cr.Parent != "" {
opts = append(opts, snapshots.WithParent(cr.Parent))
}
if err := sn.Commit(ctx, cr.Name, cr.Key, opts...); err != nil {
return nil, errgrpc.ToGRPC(err)
}

12
plugins/snapshots/overlay/overlay.go
View File

@@ -295,13 +295,23 @@ func (o *snapshotter) Mounts(ctx context.Context, key string) (_ []mount.Mount,
}
func (o *snapshotter) Commit(ctx context.Context, name, key string, opts ...snapshots.Opt) error {
var base snapshots.Info
for _, opt := range opts {
if err := opt(&base); err != nil {
return err
}
}
return o.ms.WithTransaction(ctx, true, func(ctx context.Context) error {
// grab the existing id
id, _, _, err := storage.GetInfo(ctx, key)
id, info, _, err := storage.GetInfo(ctx, key)
if err != nil {
return err
}
if len(info.Parent) > 0 && len(base.Parent) > 0 && info.Parent != base.Parent {
return fmt.Errorf("unable to change parent of snapshot %q", key)
}
usage, err := fs.DiskUsage(ctx, o.upperPath(id))
if err != nil {
return err

48
plugins/snapshots/overlay/overlay_test.go
View File

@@ -139,6 +139,54 @@ func testOverlayCommit(t *testing.T, newSnapshotter testsuite.SnapshotterFunc) {
if err := o.Commit(ctx, "base", key); err != nil {
t.Fatal(err)
}
// test rebase
testCases := []struct {
oldParent string
newParent string
expError bool
}{
{
oldParent: "",
newParent: "",
expError: false,
},
{
oldParent: "",
newParent: "base",
expError: false,
},
{
oldParent: "base",
newParent: "base",
expError: false,
},
{
oldParent: "base",
newParent: "",
expError: false,
},
{
oldParent: "base",
newParent: "new",
expError: true,
},
}
for i, tc := range testCases {
key := fmt.Sprintf("/tmp/test-%d", i)
name := fmt.Sprintf("test-%d", i)
_, err := o.Prepare(ctx, key, tc.oldParent)
if err != nil {
t.Fatal(err)
}
if err := o.Commit(ctx, name, key, snapshots.WithParent(tc.newParent)); err != nil {
if !tc.expError {
t.Fatal(err)
}
} else if tc.expError {
t.Fatal("expected error but commit succeeded")
}
}
}
func testOverlayOverlayMount(t *testing.T, newSnapshotter testsuite.SnapshotterFunc) {

3
plugins/snapshots/overlay/plugin/plugin.go
View File

@@ -32,6 +32,7 @@ import (
const (
capaRemapIDs = "remap-ids"
capaOnlyRemapIDs = "only-remap-ids"
capaRebase = "rebase"
)
// Config represents configuration for the overlay plugin.
@@ -92,6 +93,8 @@ func init() {
ic.Meta.Capabilities = append(ic.Meta.Capabilities, capaOnlyRemapIDs)
}
ic.Meta.Capabilities = append(ic.Meta.Capabilities, capaRebase)
ic.Meta.Exports[plugins.SnapshotterRootDir] = root
return overlay.NewSnapshotter(root, oOpts...)
},

26
plugins/transfer/plugin.go
View File

@@ -86,6 +86,7 @@ func init() {
lc.ConcurrentLayerFetchBuffer = config.ConcurrentLayerFetchBuffer
lc.MaxConcurrentUploadedLayers = config.MaxConcurrentUploadedLayers
lc.MaxConcurrentUnpacks = config.MaxConcurrentUnpacks
// If UnpackConfiguration is not defined, set the default.
// If UnpackConfiguration is defined and empty, ignore.
@@ -102,9 +103,13 @@ func init() {
if sn == nil {
return nil, fmt.Errorf("snapshotter %q not found: %w", uc.Snapshotter, errdefs.ErrNotFound)
}
var snExports map[string]string
var (
snExports map[string]string
snCapabilities []string
)
if p := ic.Plugins().Get(plugins.SnapshotPlugin, uc.Snapshotter); p != nil {
snExports = p.Meta.Exports
snCapabilities = p.Meta.Capabilities
}
var applier diff.Applier
@@ -162,13 +167,14 @@ func init() {
}
up := unpack.Platform{
Platform: target,
SnapshotterKey: uc.Snapshotter,
Snapshotter: sn,
SnapshotterExports: snExports,
Applier: applier,
ConfigType: uc.ConfigType,
LayerTypes: uc.LayerTypes,
Platform: target,
SnapshotterKey: uc.Snapshotter,
Snapshotter: sn,
SnapshotterExports: snExports,
SnapshotterCapabilities: snCapabilities,
Applier: applier,
ConfigType: uc.ConfigType,
LayerTypes: uc.LayerTypes,
}
lc.UnpackPlatforms = append(lc.UnpackPlatforms, up)
}
@@ -202,6 +208,9 @@ type transferConfig struct {
// RegistryConfigPath is a path to the root directory containing registry-specific configurations
RegistryConfigPath string `toml:"config_path"`
// MaxConcurrentUnpacks controls the number of concurrent layer unpack operations.
MaxConcurrentUnpacks int `toml:"max_concurrent_unpacks"`
}
type unpackConfiguration struct {
@@ -225,6 +234,7 @@ func defaultConfig() *transferConfig {
return &transferConfig{
MaxConcurrentDownloads: 3,
MaxConcurrentUploadedLayers: 3,
MaxConcurrentUnpacks: 1,
CheckPlatformSupported: false,
}
}

191
vendor/github.com/containerd/containerd/api/LICENSE generated vendored
View File

@@ -1,191 +0,0 @@
Apache License
Version 2.0, January 2004
https://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
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the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
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"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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2. Grant of Copyright License. Subject to the terms and conditions of
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(b) You must cause any modified files to carry prominent notices
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(c) You must retain, in the Source form of any Derivative Works
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excluding those notices that do not pertain to any part of
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(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
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within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
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of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
Copyright The containerd Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

304
vendor/github.com/containerd/containerd/api/services/snapshots/v1/snapshots.pb.go generated vendored
View File

@@ -502,6 +502,7 @@ type CommitSnapshotRequest struct {
//
// The combined size of a key/value pair cannot exceed 4096 bytes.
Labels map[string]string `protobuf:"bytes,4,rep,name=labels,proto3" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
Parent string `protobuf:"bytes,5,opt,name=parent,proto3" json:"parent,omitempty"`
}
func (x *CommitSnapshotRequest) Reset() {
@@ -564,6 +565,13 @@ func (x *CommitSnapshotRequest) GetLabels() map[string]string {
return nil
}
func (x *CommitSnapshotRequest) GetParent() string {
if x != nil {
return x.Parent
}
return ""
}
type StatSnapshotRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@@ -1216,7 +1224,7 @@ var file_github_com_containerd_containerd_api_services_snapshots_v1_snapshots_pr
0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x20, 0x0a, 0x0b, 0x73, 0x6e, 0x61, 0x70, 0x73, 0x68,
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0x70, 0x73, 0x68, 0x6f, 0x74, 0x74, 0x65, 0x72, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18,
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0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x22, 0x8f, 0x02, 0x0a, 0x15, 0x43,
0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x53, 0x6e, 0x61, 0x70, 0x73, 0x68, 0x6f, 0x74, 0x52, 0x65, 0x71,
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@@ -1228,160 +1236,162 @@ var file_github_com_containerd_containerd_api_services_snapshots_v1_snapshots_pr
0x65, 0x73, 0x2e, 0x73, 0x6e, 0x61, 0x70, 0x73, 0x68, 0x6f, 0x74, 0x73, 0x2e, 0x76, 0x31, 0x2e,
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0x6f, 0x33,
}
var (

2
vendor/github.com/containerd/containerd/api/services/snapshots/v1/snapshots.proto generated vendored
View File

@@ -92,6 +92,8 @@ message CommitSnapshotRequest {
//
// The combined size of a key/value pair cannot exceed 4096 bytes.
map<string, string> labels = 4;
string parent = 5;
}
message StatSnapshotRequest {

3
vendor/modules.txt vendored
View File

@@ -108,7 +108,7 @@ github.com/containerd/cgroups/v3/cgroup2/stats
# github.com/containerd/console v1.0.5
## explicit; go 1.13
github.com/containerd/console
# github.com/containerd/containerd/api v1.10.0-beta.1
# github.com/containerd/containerd/api v1.10.0-beta.1 => ./api
## explicit; go 1.23.0
github.com/containerd/containerd/api/events
github.com/containerd/containerd/api/runtime/sandbox/v1
@@ -951,3 +951,4 @@ tags.cncf.io/container-device-interface/pkg/parser
# tags.cncf.io/container-device-interface/specs-go v1.0.0
## explicit; go 1.19
tags.cncf.io/container-device-interface/specs-go
# github.com/containerd/containerd/api => ./api