Change the default cloudformation elb backend ports.

Now they default to the same as what is set in ansible which should reduce the number of things
we have to override when running ansible on a VPC.

playbooks/roles/edxapp/defaults/main.yml

@@ -79,7 +79,7 @@ EDXAPP_SYSLOG_SERVER: ''
 EDXAPP_RABBIT_HOSTNAME: 'localhost'
 EDXAPP_XML_MAPPINGS: {}
 
-EDXAPP_LMS_NGINX_PORT: 80
+EDXAPP_LMS_NGINX_PORT: 18000
 EDXAPP_LMS_PREVIEW_NGINX_PORT: 18020
 EDXAPP_CMS_NGINX_PORT: 18010
 

util/jenkins/ansible-deploy.sh

@@ -35,10 +35,9 @@ cat << EOF > $extra_vars
 
 EDXAPP_PREVIEW_LMS_BASE: preview.${deploy_host}
 EDXAPP_LMS_BASE: ${deploy_host}
+EDXAPP_LMS_NGINX_PORT: 80
 EDXAPP_LMS_PREVIEW_NGINX_PORT: 80
 EDXAPP_CMS_NGINX_PORT: 80
-XSERVER_GRADER_CHECKOUT: False
-c_skip_grader_checkout: True
 
 edx_platform_commit: $edxapp_version
 forum_version: $forum_version