Have secrets scriot generate from topology file.

generate_secrets.py

@@ -18,7 +18,7 @@ except ImportError:
 # length of generated passwords.
 pass_length = 20
 
-with open('secrets.yml', 'r') as f:
+with open('secrets.yml.topol', 'r') as f:
     data = load(f, Loader=Loader)
 
 for key, value in data.iteritems():

secrets.yml.topol

@@ -0,0 +1,11 @@
+---
+GLANCE_PASSWORD:
+METADATA_SECRET:
+MYSQL_ROOT_PASSWORD:
+NEUTRON_PASSWORD:
+NOVA_PASSWORD:
+NOVA_PLACEMENT_PASSWORD:
+OS_PASSWORD:   # Keystone admin password
+OS_DEMO_PASSWORD: # Keystone demo user password
+RABBIT_PASSWORD:
+RABBITMQ_ERLANG_COOKIE: