1
0
mirror of https://github.com/distribution/distribution synced 2024-11-12 05:45:51 +01:00
distribution/registry/storage/vacuum.go
Richard Scothern 94935f39bc Add pull through cache functionality to the Registry which can be configured
with a new `proxy` section in the configuration file.

Create a new registry type which delegates storage to a proxyBlobStore
and proxyManifestStore.  These stores will pull through data if not present
locally.  proxyBlobStore takes care not to write duplicate data to disk.

Add a scheduler to cleanup expired content. The scheduler runs as a background
goroutine.  When a blob or manifest is pulled through from the remote registry,
an entry is added to the scheduler with a TTL.  When the TTL expires the
scheduler calls a pre-specified function to remove the fetched resource.

Add token authentication to the registry middleware.  Get a token at startup
and preload the credential store with the username and password supplied in the
config file.

Allow resumable digest functionality to be disabled at runtime and disable
it when the registry is a pull through cache.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-08-04 16:09:55 -07:00

68 lines
1.5 KiB
Go

package storage
import (
"path"
"github.com/docker/distribution/context"
"github.com/docker/distribution/digest"
"github.com/docker/distribution/registry/storage/driver"
)
// 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,
pm: defaultPathMapper,
}
}
// Vacuum removes content from the filesystem
type Vacuum struct {
pm *pathMapper
driver driver.StorageDriver
ctx context.Context
}
// RemoveBlob removes a blob from the filesystem
func (v Vacuum) RemoveBlob(dgst string) error {
d, err := digest.ParseDigest(dgst)
if err != nil {
return err
}
blobPath, err := v.pm.path(blobDataPathSpec{digest: d})
if err != nil {
return err
}
context.GetLogger(v.ctx).Infof("Deleting blob: %s", blobPath)
err = v.driver.Delete(v.ctx, blobPath)
if err != nil {
return err
}
return nil
}
// RemoveRepository removes a repository directory from the
// filesystem
func (v Vacuum) RemoveRepository(repoName string) error {
rootForRepository, err := v.pm.path(repositoriesRootPathSpec{})
if err != nil {
return err
}
repoDir := path.Join(rootForRepository, repoName)
context.GetLogger(v.ctx).Infof("Deleting repo: %s", repoDir)
err = v.driver.Delete(v.ctx, repoDir)
if err != nil {
return err
}
return nil
}