Merge pull request #562 from assaf/zero-downtime

Zero down-time deploy and server checks

plugins/nginx-vhosts/post-deploy

@@ -84,6 +84,8 @@ EOF
 
   echo "http://$hostname" > "$DOKKU_ROOT/$APP/URL"
   fi
-  pluginhook nginx-pre-reload $APP
+  echo "-----> Running nginx-pre-reload"
+  pluginhook nginx-pre-reload $APP $PORT
+  echo "       Reloading nginx"
   sudo /etc/init.d/nginx reload > /dev/null
 fi