>
> http://foo.com/1/2/3/
>
> would chekc for
>
> /home/foo/bar/foo.com/1/2/3/
> /home/foo/bar/foo.com/1/2/
> /home/foo/bar/foo.com/1/
> /home/foo/bar/foo.com/
>

Or we could use the existing "location" feature:

location /1 { ... }
location /1/2 { ... }

in *one* base config.nginx file at /home/foo/bar/foo.com/config.nginx,
and then we could save even more of the precious runtime processing.

Kaspars