there are two issues when I installed new server on vultr
i couldn't git clone or ssh to git on new server. It takes long time to trouble shooting and finally it is caused no home direct in /etc/passwd.
SharedDataMiddleware in werkzeug could be used to host static file, but te problem is I always get a empty png without any drawing. It also take a long time to trouble shooting and it is caused by cache parameter which is used to enable or disable caching headers. cache is enabled by default and browser always use first png it get even later one has changed.