add mgmt cmd to check db connection

awx/main/management/commands/check_db.py

@@ -0,0 +1,17 @@
+# Copyright (c) 2015 Ansible, Inc.
+# All Rights Reserved
+
+from django.core.management.base import BaseCommand
+from django.db import connection
+
+
+class Command(BaseCommand):
+    """Checks connection to the database, and prints out connection info if not connected"""
+
+    def handle(self, *args, **options):
+
+        with connection.cursor() as cursor:
+            cursor.execute("SELECT version()")
+            version = str(cursor.fetchone()[0])
+
+        return "Database Version: {}".format(version)