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Workaround for container registry push/pull errors (#21862) (#22069) 

Backport of #21862
This commit is contained in:
KN4CK3R 2022-12-10 15:22:41 +01:00 committed by GitHub
parent e93a4a0174
commit e23ad87b55
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 100 additions and 4 deletions
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28
integrations/api_packages_container_test.go
View File

@ -6,10 +6,12 @@ package integrations
import (
"bytes"
"crypto/sha256"
"encoding/base64"
"fmt"
"net/http"
"strings"
"sync"
"testing"
"code.gitea.io/gitea/models/db"
@ -549,6 +551,32 @@ func TestPackageContainer(t *testing.T) {
})
}
// https://github.com/go-gitea/gitea/issues/19586
t.Run("ParallelUpload", func(t *testing.T) {
defer PrintCurrentTest(t)()
url := fmt.Sprintf("%sv2/%s/parallel", setting.AppURL, user.Name)
var wg sync.WaitGroup
for i := 0; i < 10; i++ {
wg.Add(1)
content := []byte{byte(i)}
digest := fmt.Sprintf("sha256:%x", sha256.Sum256(content))
go func() {
defer wg.Done()
req := NewRequestWithBody(t, "POST", fmt.Sprintf("%s/blobs/uploads?digest=%s", url, digest), bytes.NewReader(content))
addTokenAuthHeader(req, userToken)
resp := MakeRequest(t, req, http.StatusCreated)
assert.Equal(t, digest, resp.Header().Get("Docker-Content-Digest"))
}()
}
wg.Wait()
})
t.Run("OwnerNameChange", func(t *testing.T) {
defer PrintCurrentTest(t)()

7
modules/packages/content_store.go
View File

@ -30,6 +30,13 @@ func (s *ContentStore) Get(key BlobHash256Key) (storage.Object, error) {
return s.store.Open(KeyToRelativePath(key))
}
// FIXME: Workaround to be removed in v1.20
// https://github.com/go-gitea/gitea/issues/19586
func (s *ContentStore) Has(key BlobHash256Key) error {
_, err := s.store.Stat(KeyToRelativePath(key))
return err
}
// Save stores a package blob
func (s *ContentStore) Save(key BlobHash256Key, r io.Reader, size int64) error {
_, err := s.store.Save(KeyToRelativePath(key), r, size)

31
routers/api/packages/container/blob.go
View File

@ -7,8 +7,11 @@ package container
import (
"context"
"encoding/hex"
"errors"
"fmt"
"os"
"strings"
"sync"
"code.gitea.io/gitea/models/db"
packages_model "code.gitea.io/gitea/models/packages"
@ -19,6 +22,8 @@ import (
packages_service "code.gitea.io/gitea/services/packages"
)
var uploadVersionMutex sync.Mutex
// saveAsPackageBlob creates a package blob from an upload
// The uploaded blob gets stored in a special upload version to link them to the package/image
func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_service.PackageInfo) (*packages_model.PackageBlob, error) {
@ -28,6 +33,11 @@ func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_servic
contentStore := packages_module.NewContentStore()
var uploadVersion *packages_model.PackageVersion
// FIXME: Replace usage of mutex with database transaction
// https://github.com/go-gitea/gitea/pull/21862
uploadVersionMutex.Lock()
err := db.WithTx(func(ctx context.Context) error {
created := true
p := &packages_model.Package{
@ -68,11 +78,30 @@ func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_servic
}
}
uploadVersion = pv
return nil
})
uploadVersionMutex.Unlock()
if err != nil {
return nil, err
}
err = db.WithTx(func(ctx context.Context) error {
pb, exists, err = packages_model.GetOrInsertBlob(ctx, pb)
if err != nil {
log.Error("Error inserting package blob: %v", err)
return err
}
// FIXME: Workaround to be removed in v1.20
// https://github.com/go-gitea/gitea/issues/19586
if exists {
err = contentStore.Has(packages_module.BlobHash256Key(pb.HashSHA256))
if err != nil && errors.Is(err, os.ErrNotExist) {
log.Debug("Package registry inconsistent: blob %s does not exist on file system", pb.HashSHA256)
exists = false
}
}
if !exists {
if err := contentStore.Save(packages_module.BlobHash256Key(pb.HashSHA256), hsr, hsr.Size()); err != nil {
log.Error("Error saving package blob in content store: %v", err)
@ -83,7 +112,7 @@ func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_servic
filename := strings.ToLower(fmt.Sprintf("sha256_%s", pb.HashSHA256))
pf := &packages_model.PackageFile{
VersionID: pv.ID,
VersionID: uploadVersion.ID,
BlobID: pb.ID,
Name: filename,
LowerName: filename,

27
routers/api/packages/container/container.go
View File

@ -10,6 +10,7 @@ import (
"io"
"net/http"
"net/url"
"os"
"regexp"
"strconv"
"strings"
@ -193,7 +194,7 @@ func InitiateUploadBlob(ctx *context.Context) {
mount := ctx.FormTrim("mount")
from := ctx.FormTrim("from")
if mount != "" {
blob, _ := container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
blob, _ := workaroundGetContainerBlob(ctx, &container_model.BlobSearchOptions{
Image: from,
Digest: mount,
})
@ -361,7 +362,7 @@ func getBlobFromContext(ctx *context.Context) (*packages_model.PackageFileDescri
return nil, container_model.ErrContainerBlobNotExist
}
return container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
return workaroundGetContainerBlob(ctx, &container_model.BlobSearchOptions{
OwnerID: ctx.Package.Owner.ID,
Image: ctx.Params("image"),
Digest: digest,
@ -503,7 +504,7 @@ func getManifestFromContext(ctx *context.Context) (*packages_model.PackageFileDe
return nil, container_model.ErrContainerBlobNotExist
}
return container_model.GetContainerBlob(ctx, opts)
return workaroundGetContainerBlob(ctx, opts)
}
// https://github.com/opencontainers/distribution-spec/blob/main/spec.md#checking-if-content-exists-in-the-registry
@ -643,3 +644,23 @@ func GetTagList(ctx *context.Context) {
Tags: tags,
})
}
// FIXME: Workaround to be removed in v1.20
// https://github.com/go-gitea/gitea/issues/19586
func workaroundGetContainerBlob(ctx *context.Context, opts *container_model.BlobSearchOptions) (*packages_model.PackageFileDescriptor, error) {
blob, err := container_model.GetContainerBlob(ctx, opts)
if err != nil {
return nil, err
}
err = packages_module.NewContentStore().Has(packages_module.BlobHash256Key(blob.Blob.HashSHA256))
if err != nil {
if errors.Is(err, os.ErrNotExist) {
log.Debug("Package registry inconsistent: blob %s does not exist on file system", blob.Blob.HashSHA256)
return nil, container_model.ErrContainerBlobNotExist
}
return nil, err
}
return blob, nil
}

11
routers/api/packages/container/manifest.go
View File

@ -6,8 +6,10 @@ package container
import (
"context"
"errors"
"fmt"
"io"
"os"
"strings"
"code.gitea.io/gitea/models/db"
@ -403,6 +405,15 @@ func createManifestBlob(ctx context.Context, mci *manifestCreationInfo, pv *pack
log.Error("Error inserting package blob: %v", err)
return nil, false, "", err
}
// FIXME: Workaround to be removed in v1.20
// https://github.com/go-gitea/gitea/issues/19586
if exists {
err = packages_module.NewContentStore().Has(packages_module.BlobHash256Key(pb.HashSHA256))
if err != nil && errors.Is(err, os.ErrNotExist) {
log.Debug("Package registry inconsistent: blob %s does not exist on file system", pb.HashSHA256)
exists = false
}
}
if !exists {
contentStore := packages_module.NewContentStore()
if err := contentStore.Save(packages_module.BlobHash256Key(pb.HashSHA256), buf, buf.Size()); err != nil {