Allow Lemur "start" to use the global config. (#596)

* allowing our runserver to use the config specified by -c

* Maintaining config for gunicorn

lemur/common/managers.py

@@ -60,11 +60,14 @@ class InstanceManager(object):
                     results.append(cls())
                 else:
                     results.append(cls)
+
             except InvalidConfiguration as e:
                 current_app.logger.warning("Plugin '{0}' may not work correctly. {1}".format(class_name, e))
+
             except Exception as e:
                 current_app.logger.exception("Unable to import {0}. Reason: {1}".format(cls_path, e))
                 continue
+
         self.cache = results
 
         return results

lemur/factory.py

@@ -92,6 +92,7 @@ def configure_app(app, config=None):
     """
     # respect the config first
     if config and config != 'None':
+        app.config['CONFIG_PATH'] = config
         app.config.from_object(from_file(config))
     else:
         try:
@@ -103,6 +104,9 @@ def configure_app(app, config=None):
             else:
                 app.config.from_object(from_file(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'default.conf.py')))
 
+    # we don't use this
+    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+
 
 def configure_extensions(app):
     """

lemur/manage.py

@@ -119,7 +119,6 @@ LOG_FILE = "lemur.log"
 # modify this if you are not using a local database
 SQLALCHEMY_DATABASE_URI = 'postgresql://lemur:lemur@localhost:5432/lemur'
 
-
 # AWS
 
 #LEMUR_INSTANCE_PROFILE = 'Lemur'
@@ -372,11 +371,10 @@ class LemurServer(Command):
 
         app = WSGIApplication()
 
-        # run startup tasks on an app like object
-        pre_app = create_app(kwargs.get('config'))
-        validate_conf(pre_app, REQUIRED_VARIABLES)
+        # run startup tasks on a app like object
+        validate_conf(current_app, REQUIRED_VARIABLES)
 
-        app.app_uri = 'lemur:create_app(config="{0}")'.format(kwargs.get('config'))
+        app.app_uri = 'lemur:create_app(config="{0}")'.format(current_app.config.get('CONFIG_PATH'))
 
         return app.run()