configure under lighttpd and postgres permissions

I got lighttpd-1.4.18 installed on my machine.

running infogami at this moment is done by typing

sudo -u postgres python run.py

that is all good for devel phase.

As for production, I have no idea how to configure lighttpd in a way that it will still run under postgres.

What have you guys done and may you share the parts of the lighttpd.conf

thanks,
tzury