Accidental refactor, split out legacy.py into separate sumodules and update all call sites.

health/services.py

@@ -1,9 +1,11 @@
 import logging
-from data import model
+from data.model import health
 from app import build_logs
 
+
 logger = logging.getLogger(__name__)
 
+
 def _check_registry_gunicorn(app):
   """ Returns the status of the registry gunicorn workers. """
   # Compute the URL for checking the registry endpoint. We append a port if and only if the
@@ -24,7 +26,7 @@ def _check_registry_gunicorn(app):
 
 def _check_database(app):
   """ Returns the status of the database, as accessed from this instance. """
-  return model.check_health(app.config)
+  return health.check_health(app.config)
 
 def _check_redis(app):
   """ Returns the status of Redis, as accessed from this instance. """