relengapi_common: db common extension should be always applied as last

cache extension should not be present as default

src/relengapi_clobberer/relengapi_clobberer/__init__.py

@@ -6,7 +6,7 @@ from __future__ import absolute_import
 
 import os
 
-from relengapi_common import db, create_app
+from relengapi_common import db, cache, create_app
 
 
 DEBUG = bool(os.environ.get('DEBUG', __name__ == '__main__'))
@@ -31,7 +31,7 @@ if not os.environ.get('APP_SETTINGS') and \
 
 app = create_app(
     "relengapi_clobberer",
-    extensions=[db, init_app],
+    extensions=[cache, init_app, db],
     debug=DEBUG,
     debug_src=HERE,
 )

src/relengapi_common/relengapi_common/__init__.py

@@ -11,7 +11,7 @@ import sys
 
 from flask import Flask, send_from_directory
 
-from relengapi_common import api, auth, log, cache, cors
+import relengapi_common
 
 __APP = dict()
 
@@ -45,9 +45,13 @@ def create_app(name, extensions=[], config=None, debug=False, debug_src=None,
     app.jinja_loader = jinja2.loaders.FileSystemLoader(
             os.path.join(os.path.dirname(__file__), 'templates'))
 
-    base_extensions = [log, auth, api, cache]
+    base_extensions = [
+        relengapi_common.log,
+        relengapi_common.auth,
+        relengapi_common.api,
+    ]
     if app.debug is True:
-        base_extensions.append(cors)
+        base_extensions.append(relengapi_common.cors)
 
     for extension in base_extensions + extensions: