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metricsblobstore.go
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metricsblobstore.go
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package metrics
import (
"net/http"
"github.com/docker/distribution"
"github.com/docker/distribution/context"
"github.com/docker/distribution/digest"
)
// BlobStore wraps a distribution.BlobStore to collect statistics
type BlobStore struct {
Store distribution.BlobStore
Reponame string
}
var _ distribution.BlobStore = &BlobStore{}
func (b *BlobStore) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.stat", b.Reponame}).Stop()
return b.Store.Stat(ctx, dgst)
}
func (b *BlobStore) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.get", b.Reponame}).Stop()
return b.Store.Get(ctx, dgst)
}
func (b *BlobStore) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.open", b.Reponame}).Stop()
return b.Store.Open(ctx, dgst)
}
func (b *BlobStore) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.put", b.Reponame}).Stop()
return b.Store.Put(ctx, mediaType, p)
}
func (b *BlobStore) Create(ctx context.Context, options ...distribution.BlobCreateOption) (distribution.BlobWriter, error) {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.create", b.Reponame}).Stop()
writer, err := b.Store.Create(ctx, options...)
return &metricsBlobWriter{
BlobWriter: writer,
reponame: b.Reponame,
}, err
}
func (b *BlobStore) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.resume", b.Reponame}).Stop()
return b.Store.Resume(ctx, id)
}
func (b *BlobStore) ServeBlob(ctx context.Context, w http.ResponseWriter, req *http.Request, dgst digest.Digest) error {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.serveblob", b.Reponame}).Stop()
return b.Store.ServeBlob(ctx, w, req, dgst)
}
func (b *BlobStore) Delete(ctx context.Context, dgst digest.Digest) error {
defer NewTimer(RegistryAPIRequests, []string{"blobstore.delete", b.Reponame}).Stop()
return b.Store.Delete(ctx, dgst)
}
type metricsBlobWriter struct {
distribution.BlobWriter
reponame string
}
func (bw *metricsBlobWriter) Commit(ctx context.Context, provisional distribution.Descriptor) (canonical distribution.Descriptor, err error) {
defer NewTimer(RegistryAPIRequests, []string{"blobwriter.commit", bw.reponame}).Stop()
return bw.BlobWriter.Commit(ctx, provisional)
}
func (bw *metricsBlobWriter) Cancel(ctx context.Context) error {
defer NewTimer(RegistryAPIRequests, []string{"blobwriter.cancel", bw.reponame}).Stop()
return bw.BlobWriter.Cancel(ctx)
}