added favicon, changed default behaviour on unavailable otree instance

group_vars/otree_servers.yml.example

@@ -7,6 +7,7 @@ home_path: "/home"
 nginx_config_path: "/etc/nginx"
 nginx_sites_available: "{{ nginx_config_path }}/sites-available"
 nginx_sites_enabled: "{{ nginx_config_path }}/sites-enabled"
+default_redirection: "https:// mydomain "
 
 otree_domain: "company.org"
 # fqdn of the otree parent domain

templates/nginx_default_site.conf.j2

@@ -21,7 +21,7 @@ server {
         ssl_certificate_key {{ ssl_certificate_key_path }};
 
         location / {
-                return 403;
+                return 301 {{ default_redirection }};
         }
 }
 

templates/nginx_site.conf.j2

@@ -13,6 +13,10 @@ server {
 	ssl_certificate {{ ssl_certificate_path }};
 	ssl_certificate_key {{ ssl_certificate_key_path }};
 
+	location = /favicon.ico {
+                alias /var/www/media/images/favicon.ico;
+        }
+
 	location / {
 		access_log off;
 		proxy_pass http://127.0.0.1:{{ item.value.port }};