Fix ACI conversion and add a registry test for it

image/appc/__init__.py

@@ -21,7 +21,8 @@ class AppCImageFormatter(TarImageFormatter):
   def stream_generator(self, tag, manifest, synthetic_image_id, layer_iterator,
                        tar_stream_getter_iterator, reporter=None):
     image_mtime = 0
-    created = manifest.get_parsed_manifest().created_datetime
+    parsed_manifest = manifest.get_parsed_manifest()
+    created = parsed_manifest.created_datetime
     if created is not None:
       image_mtime = calendar.timegm(created.utctimetuple())
 
@@ -32,7 +33,7 @@ class AppCImageFormatter(TarImageFormatter):
     # Yield the manifest.
     aci_manifest = json.dumps(DockerV1ToACIManifestTranslator.build_manifest(
       tag,
-      manifest,
+      parsed_manifest,
       synthetic_image_id
     ))
     yield self.tar_file('manifest', aci_manifest, mtime=image_mtime)
@@ -172,7 +173,7 @@ class DockerV1ToACIManifestTranslator(object):
   @staticmethod
   def build_manifest(tag, manifest, synthetic_image_id):
     """ Builds an ACI manifest of an existing repository image. """
-    docker_layer_data = JSONPathDict(manifest.leaf_layer.v1_metadata)
+    docker_layer_data = JSONPathDict(json.loads(manifest.leaf_layer.raw_v1_metadata))
     config = docker_layer_data['config'] or JSONPathDict({})
 
     namespace = tag.repository.namespace_name
@@ -209,7 +210,7 @@ class DockerV1ToACIManifestTranslator(object):
       "labels": [
         {
           "name": "version",
-          "value": tag,
+          "value": tag.name,
         },
         {
           "name": "arch",