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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
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14
docs/handlers/app.go
View file

@ -73,7 +73,6 @@ func NewApp(ctx context.Context, configuration configuration.Configuration) *App
var err error
app.driver, err = factory.Create(configuration.Storage.Type(), configuration.Storage.Parameters())
if err != nil {
// TODO(stevvooe): Move the creation of a service into a protected
// method, where this is created lazily. Its status can be queried via
@ -92,7 +91,7 @@ func NewApp(ctx context.Context, configuration configuration.Configuration) *App
}
startUploadPurger(app.driver, ctxu.GetLogger(app), purgeConfig)
startUploadPurger(app, app.driver, ctxu.GetLogger(app), purgeConfig)
app.driver, err = applyStorageMiddleware(app.driver, configuration.Middleware["storage"])
if err != nil {
@ -109,10 +108,10 @@ func NewApp(ctx context.Context, configuration configuration.Configuration) *App
if app.redis == nil {
panic("redis configuration required to use for layerinfo cache")
}
app.registry = storage.NewRegistryWithDriver(app.driver, cache.NewRedisLayerInfoCache(app.redis))
app.registry = storage.NewRegistryWithDriver(app, app.driver, cache.NewRedisLayerInfoCache(app.redis))
ctxu.GetLogger(app).Infof("using redis layerinfo cache")
case "inmemory":
app.registry = storage.NewRegistryWithDriver(app.driver, cache.NewInMemoryLayerInfoCache())
app.registry = storage.NewRegistryWithDriver(app, app.driver, cache.NewInMemoryLayerInfoCache())
ctxu.GetLogger(app).Infof("using inmemory layerinfo cache")
default:
if cc["layerinfo"] != "" {
@ -123,7 +122,7 @@ func NewApp(ctx context.Context, configuration configuration.Configuration) *App
if app.registry == nil {
// configure the registry if no cache section is available.
app.registry = storage.NewRegistryWithDriver(app.driver, nil)
app.registry = storage.NewRegistryWithDriver(app.Context, app.driver, nil)
}
app.registry, err = applyRegistryMiddleware(app.registry, configuration.Middleware["registry"])
@ -365,7 +364,6 @@ func (app *App) dispatcher(dispatch dispatchFunc) http.Handler {
}
dispatch(context, r).ServeHTTP(w, r)
// Automated error response handling here. Handlers may return their
// own errors if they need different behavior (such as range errors
// for layer upload).
@ -597,7 +595,7 @@ func badPurgeUploadConfig(reason string) {
// startUploadPurger schedules a goroutine which will periodically
// check upload directories for old files and delete them
func startUploadPurger(storageDriver storagedriver.StorageDriver, log ctxu.Logger, config map[interface{}]interface{}) {
func startUploadPurger(ctx context.Context, storageDriver storagedriver.StorageDriver, log ctxu.Logger, config map[interface{}]interface{}) {
if config["enabled"] == false {
return
}
@ -652,7 +650,7 @@ func startUploadPurger(storageDriver storagedriver.StorageDriver, log ctxu.Logge
time.Sleep(jitter)
for {
storage.PurgeUploads(storageDriver, time.Now().Add(-purgeAgeDuration), !dryRunBool)
storage.PurgeUploads(ctx, storageDriver, time.Now().Add(-purgeAgeDuration), !dryRunBool)
log.Infof("Starting upload purge in %s", intervalDuration)
time.Sleep(intervalDuration)
}