Adds collection of vim status metric

Current support is only OpenStack. It tries to do a simple project list query
to check if VIM is up or not.

Change-Id: Ifec844d9514b6c676b065fee7cf785bdf2a2ea3d
Signed-off-by: Benjamin Diaz <bdiaz@whitestack.com>
diff --git a/osm_mon/cmd/mon_server.py b/osm_mon/cmd/mon_server.py
index a100c20..34fe0b1 100644
--- a/osm_mon/cmd/mon_server.py
+++ b/osm_mon/cmd/mon_server.py
@@ -24,6 +24,7 @@
 import logging
 import sys
 
+from osm_mon.core.database import DatabaseManager
 from osm_mon.core.settings import Config
 from osm_mon.server.server import Server
 
@@ -45,6 +46,10 @@
     log = logging.getLogger(__name__)
     log.info("Starting MON Server...")
     log.debug("Config: %s", vars(cfg))
+    log.info("Initializing database...")
+    db_manager = DatabaseManager()
+    db_manager.create_tables()
+    log.info("Database initialized correctly.")
     server = Server()
     server.run()