setting default nginx ports for the edxapp services

This allows you to access services without setting
up subdomains

playbooks/roles/edxapp/vars/main.yml

@@ -2,6 +2,16 @@
 # when the role is included
 ---
 
+# Default nginx listen ports
+# These should be overrided if you want
+# to serve all content on port 80
+
+
+lms_xml_nginx_port: 18030
+lms_nginx_port: 80
+lms_preview_nginx_port: 18020
+cms_nginx_port: 18010
+
 # These vars are for creating the application json config
 # files.  There are two for each service that uses the
 # 'edx-platform' code.  Defining them will create the upstart