Changed sync behaviour, it used to copy images over http interface

now it copies to a local cache and then it copies over storage APIs

- accept all images with or without signatures
- disable sync writing to stdout
- added more logs
- fixed switch statement in routes
- fixed enabling sync multiple times for storage subpaths

closes #266

Signed-off-by: Petu Eusebiu <peusebiu@cisco.com>

pkg/api/controller.go

@@ -137,6 +137,10 @@ func (c *Controller) Run() error {
 		// Enable extensions if extension config is provided
 		if c.Config != nil && c.Config.Extensions != nil {
 			ext.EnableExtensions(c.Config, c.Log, c.Config.Storage.RootDirectory)
+
+			if c.Config.Extensions.Sync != nil {
+				ext.EnableSyncExtension(c.Config, c.Log, c.StoreController)
+			}
 		}
 	} else {
 		// we can't proceed without global storage