Use the registry API for security scanning

when the storage engine doesn't support direct download url

workers/securityworker.py

@@ -13,6 +13,7 @@ from data.model.image import get_image_with_storage_and_parent_base
 from util.secscan.api import SecurityConfigValidator
 from util.secscan.analyzer import LayerAnalyzer
 from util.migrate.allocator import yield_random_entries
+from endpoints.v2 import v2_bp
 
 BATCH_SIZE = 50
 INDEXING_INTERVAL = 30
@@ -61,6 +62,8 @@ class SecurityWorker(Worker):
     self._min_id = max_id + 1
 
 if __name__ == '__main__':
+  app.register_blueprint(v2_bp, url_prefix='/v2')
+
   if not features.SECURITY_SCANNER:
     logger.debug('Security scanner disabled; skipping SecurityWorker')
     while True: