distribution/registry/storage/vacuum.go

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package storage
import (
"context"
"path"
"github.com/distribution/distribution/v3/internal/dcontext"
"github.com/distribution/distribution/v3/registry/storage/driver"
"github.com/opencontainers/go-digest"
)
// vacuum contains functions for cleaning up repositories and blobs
// These functions will only reliably work on strongly consistent
// storage systems.
// https://en.wikipedia.org/wiki/Consistency_model
// NewVacuum creates a new Vacuum
func NewVacuum(ctx context.Context, driver driver.StorageDriver) Vacuum {
return Vacuum{
ctx: ctx,
driver: driver,
}
}
// Vacuum removes content from the filesystem
type Vacuum struct {
driver driver.StorageDriver
ctx context.Context
}
// RemoveBlob removes a blob from the filesystem
func (v Vacuum) RemoveBlob(dgst string) error {
d, err := digest.Parse(dgst)
if err != nil {
return err
}
blobPath, err := pathFor(blobPathSpec{digest: d})
if err != nil {
return err
}
dcontext.GetLogger(v.ctx).Infof("Deleting blob: %s", blobPath)
err = v.driver.Delete(v.ctx, blobPath)
if err != nil {
return err
}
return nil
}
add possibility to clean untagged manifests add tests add possibility to clean untagged manifests Signed-off-by: Jesse Haka <haka.jesse@gmail.com> add dry tests Signed-off-by: Jesse Haka <haka.jesse@gmail.com> remove underscores Signed-off-by: Jesse Haka <haka.jesse@gmail.com> fixes Signed-off-by: Jesse Haka <haka.jesse@gmail.com> opts struct+use camelcase Signed-off-by: Jesse Haka <haka.jesse@gmail.com> doublecheck manifest in paths.go Signed-off-by: Jesse Haka <haka.jesse@gmail.com> add gofmt Signed-off-by: Jesse Haka <haka.jesse@gmail.com> fix lint Signed-off-by: Jesse Haka <haka.jesse@gmail.com> add log print Signed-off-by: Jesse Haka <haka.jesse@gmail.com> move log to dryrun as well Signed-off-by: Jesse Haka <haka.jesse@gmail.com> remove counter Signed-off-by: Jesse Haka <haka.jesse@gmail.com> remove manifest tag references Signed-off-by: Jesse Haka <haka.jesse@gmail.com> add tag to tests Signed-off-by: Jesse Haka <haka.jesse@gmail.com> manifestsWithoutTags -> removeUntagged Signed-off-by: Jesse Haka <haka.jesse@gmail.com> remove RemoveManifestTagReferences and use removemanifests Signed-off-by: Jesse Haka <haka.jesse@gmail.com> remove comment Signed-off-by: Jesse Haka <haka.jesse@gmail.com> remove pathfor Signed-off-by: Jesse Haka <haka.jesse@gmail.com> move removemanifest out of manifestenumerator, it does not work correctly if we delete stuff in it Signed-off-by: Jesse Haka <haka.jesse@gmail.com> add comment Signed-off-by: Jesse Haka <haka.jesse@gmail.com> fix context -> dcontext Signed-off-by: Jesse Haka <haka.jesse@gmail.com> fix gofmt
2017-06-06 08:02:47 +00:00
// RemoveManifest removes a manifest from the filesystem
func (v Vacuum) RemoveManifest(name string, dgst digest.Digest, tags []string) error {
// remove a tag manifest reference, in case of not found continue to next one
for _, tag := range tags {
tagsPath, err := pathFor(manifestTagIndexEntryPathSpec{name: name, revision: dgst, tag: tag})
if err != nil {
return err
}
_, err = v.driver.Stat(v.ctx, tagsPath)
if err != nil {
switch err := err.(type) {
case driver.PathNotFoundError:
continue
default:
return err
}
}
dcontext.GetLogger(v.ctx).Infof("deleting manifest tag reference: %s", tagsPath)
err = v.driver.Delete(v.ctx, tagsPath)
if err != nil {
return err
}
}
manifestPath, err := pathFor(manifestRevisionPathSpec{name: name, revision: dgst})
if err != nil {
return err
}
dcontext.GetLogger(v.ctx).Infof("deleting manifest: %s", manifestPath)
return v.driver.Delete(v.ctx, manifestPath)
}
// RemoveRepository removes a repository directory from the
// filesystem
func (v Vacuum) RemoveRepository(repoName string) error {
rootForRepository, err := pathFor(repositoriesRootPathSpec{})
if err != nil {
return err
}
repoDir := path.Join(rootForRepository, repoName)
dcontext.GetLogger(v.ctx).Infof("Deleting repo: %s", repoDir)
err = v.driver.Delete(v.ctx, repoDir)
if err != nil {
return err
}
return nil
}