Merge pull request #1370 from edx/jarv/fix-nginx-param-default

defaults for nginx params

playbooks/roles/nginx/defaults/main.yml

 # Variables for nginx role
 ---
+# These are paramters to the role
+# and should be overridden
+nginx_sites: []
+nginx_redirects: {}
+
 NGINX_ENABLE_SSL: False
 # Set these to real paths on your
 # filesystem, otherwise nginx will

playbooks/roles/nginx/tasks/main.yml

@@ -80,7 +80,6 @@
     owner=root group={{ common_web_user }} mode=0640
   notify: reload nginx
   with_dict: nginx_redirects
-  when: nginx_redirects is defined
 
 - name: Creating nginx redirect links for {{ nginx_redirects }}
   file: >
@@ -89,7 +88,6 @@
     state=link owner=root group=root
   notify: reload nginx
   with_dict: nginx_redirects
-  when: nginx_redirects is defined
 
 - name: Write out htpasswd file
   htpasswd: >