upstream.patch

diff --git functions functions
index dd441d7..2518bc1 100755
--- functions
+++ functions
@@ -157,6 +157,7 @@ nginx_build_config() {
     [[ -f "$APP_NGINX_TEMPLATE" ]] && NGINX_TEMPLATE="$APP_NGINX_TEMPLATE" && NGINX_CUSTOM_TEMPLATE="true" && dokku_log_info1 'Overriding default nginx.conf with detected nginx.conf.template'
 
     NGINX_CONF=$(mktemp -t "nginx.conf.XXXXXX")
+    UPSTREAM_CONF=$(mktemp -t "upstream.conf.XXXXXX")
     SCHEME="http"
 
     # if the app has is not vhost enabled then, let's make sure we're cleaned up
@@ -252,17 +253,18 @@ EOF
     fi
 
     if [[ -n "$DOKKU_APP_LISTEN_PORT" ]] && [[ -n "$DOKKU_APP_LISTEN_IP" ]]; then
-      echo "upstream $APP { server $DOKKU_APP_LISTEN_IP:$DOKKU_APP_LISTEN_PORT; }" >> $NGINX_CONF
+      echo "upstream $APP { server $DOKKU_APP_LISTEN_IP:$DOKKU_APP_LISTEN_PORT; }" >> $UPSTREAM_CONF
     elif [[ -n "$DOKKU_APP_LISTENERS" ]]; then
-      echo "upstream $APP { " >> $NGINX_CONF
+      echo "upstream $APP { " >> $UPSTREAM_CONF
       for listener in $DOKKU_APP_LISTENERS; do
-        echo "  server $listener;" >> $NGINX_CONF
+        echo "  server $listener;" >> $UPSTREAM_CONF
       done
-      echo "}" >> $NGINX_CONF
+      echo "}" >> $UPSTREAM_CONF
     fi
 
     dokku_log_info1 "Creating $SCHEME nginx.conf"
     mv $NGINX_CONF "$DOKKU_ROOT/$APP/nginx.conf"
+    mv $UPSTREAM_CONF "$DOKKU_ROOT/$APP/upstream.conf"
 
     if is_deployed "$APP"; then
       dokku_log_info1 "Running nginx-pre-reload"