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Make Storage Driver API calls context aware.

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- Change driver interface to take a context as its first argument
     - Make newFileReader take a context as its first argument
     - Make newFileWriter take a context as its first argument
     - Make blobstore exists and delete take a context as a first argument
     - Pass the layerreader's context to the storage layer
     - Pass the app's context to purgeuploads
     - Store the app's context into the blobstore (was previously null)
     - Pass the trace'd context to the storage drivers

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
This commit is contained in:
Richard 2015-04-27 15:58:58 -07:00
parent c0d297c011
commit 5d9105bd25
30 changed files with 383 additions and 343 deletions
Download patch file Download diff file Expand all files Collapse all files

19
docs/storage/driver/azure/azure.go
View file

@ -11,6 +11,7 @@ import (
"strings"
"time"
"github.com/docker/distribution/context"
storagedriver "github.com/docker/distribution/registry/storage/driver"
"github.com/docker/distribution/registry/storage/driver/base"
"github.com/docker/distribution/registry/storage/driver/factory"
@ -99,7 +100,7 @@ func (d *driver) Name() string {
}
// GetContent retrieves the content stored at "path" as a []byte.
func (d *driver) GetContent(path string) ([]byte, error) {
func (d *driver) GetContent(ctx context.Context, path string) ([]byte, error) {
blob, err := d.client.GetBlob(d.container, path)
if err != nil {
if is404(err) {
@ -112,13 +113,13 @@ func (d *driver) GetContent(path string) ([]byte, error) {
}
// PutContent stores the []byte content at a location designated by "path".
func (d *driver) PutContent(path string, contents []byte) error {
func (d *driver) PutContent(ctx context.Context, path string, contents []byte) error {
return d.client.PutBlockBlob(d.container, path, ioutil.NopCloser(bytes.NewReader(contents)))
}
// ReadStream retrieves an io.ReadCloser for the content stored at "path" with a
// given byte offset.
func (d *driver) ReadStream(path string, offset int64) (io.ReadCloser, error) {
func (d *driver) ReadStream(ctx context.Context, path string, offset int64) (io.ReadCloser, error) {
if ok, err := d.client.BlobExists(d.container, path); err != nil {
return nil, err
} else if !ok {
@ -145,7 +146,7 @@ func (d *driver) ReadStream(path string, offset int64) (io.ReadCloser, error) {
// WriteStream stores the contents of the provided io.ReadCloser at a location
// designated by the given path.
func (d *driver) WriteStream(path string, offset int64, reader io.Reader) (int64, error) {
func (d *driver) WriteStream(ctx context.Context, path string, offset int64, reader io.Reader) (int64, error) {
if blobExists, err := d.client.BlobExists(d.container, path); err != nil {
return 0, err
} else if !blobExists {
@ -166,7 +167,7 @@ func (d *driver) WriteStream(path string, offset int64, reader io.Reader) (int64
// Stat retrieves the FileInfo for the given path, including the current size
// in bytes and the creation time.
func (d *driver) Stat(path string) (storagedriver.FileInfo, error) {
func (d *driver) Stat(ctx context.Context, path string) (storagedriver.FileInfo, error) {
// Check if the path is a blob
if ok, err := d.client.BlobExists(d.container, path); err != nil {
return nil, err
@ -215,7 +216,7 @@ func (d *driver) Stat(path string) (storagedriver.FileInfo, error) {
// List returns a list of the objects that are direct descendants of the given
// path.
func (d *driver) List(path string) ([]string, error) {
func (d *driver) List(ctx context.Context, path string) ([]string, error) {
if path == "/" {
path = ""
}
@ -231,7 +232,7 @@ func (d *driver) List(path string) ([]string, error) {
// Move moves an object stored at sourcePath to destPath, removing the original
// object.
func (d *driver) Move(sourcePath string, destPath string) error {
func (d *driver) Move(ctx context.Context, sourcePath string, destPath string) error {
sourceBlobURL := d.client.GetBlobUrl(d.container, sourcePath)
err := d.client.CopyBlob(d.container, destPath, sourceBlobURL)
if err != nil {
@ -245,7 +246,7 @@ func (d *driver) Move(sourcePath string, destPath string) error {
}
// Delete recursively deletes all objects stored at "path" and its subpaths.
func (d *driver) Delete(path string) error {
func (d *driver) Delete(ctx context.Context, path string) error {
ok, err := d.client.DeleteBlobIfExists(d.container, path)
if err != nil {
return err
@ -275,7 +276,7 @@ func (d *driver) Delete(path string) error {
// URLFor returns a publicly accessible URL for the blob stored at given path
// for specified duration by making use of Azure Storage Shared Access Signatures (SAS).
// See https://msdn.microsoft.com/en-us/library/azure/ee395415.aspx for more info.
func (d *driver) URLFor(path string, options map[string]interface{}) (string, error) {
func (d *driver) URLFor(ctx context.Context, path string, options map[string]interface{}) (string, error) {
expiresTime := time.Now().UTC().Add(20 * time.Minute) // default expiration
expires, ok := options["expiry"]
if ok {