add more options

templates/app.ini.erb

@@ -28,6 +28,8 @@ SSH_LISTEN_PORT = <%= @ga_ssh_port %>
 LFS_START_SERVER = <%= @ga_start_lfs %>
 START_SSH_SERVER = <%= @ga_start_ssh %>
 LFS_JWT_SECRET = <%= @ga_lfs_jwt_secret %>
+USE_PROXY_PROTOCOL = <%= @ga_use_proxy_protocol %>
+PUBLIC_URL_DETECTION = <%= @ga_public_url_detection %>
 
 [database]
 DB_TYPE = <%= @ga_db_type %>