Starting from version 5.7 OpenBSD includes a minimal (truly minimal) web server with FastCGI support
(http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man8/httpd.8?query=httpd&sec=8)
The first step to enable it is writing its configuration file `/etc/httpd.conf`
server "default" {
listen on 0.0.0.0 port 80
fastcgi socket ":3031"
}
then enable and start it with the `rcctl`
tool:
rcctl enable httpd
rcctl start httpd
this minimal configuration will spawn a chrooted webserver on port 80, running as user 'www' and forwarding every request to the address 127.0.0.1:3031 using the FastCGI protocol.
Now you only need to spawn uWSGI on the FastCGI address:
[uwsgi]
fastcgi-socket = 127.0.0.1:3031
; a simple python app (eventually remember to load the python plugin)
wsgi-file = app.py
you can obviously use uWSGI as a full-featured CGI server (well, effectively it has way more features than every cgi server out there :P), just remember to force the modifier1 to the '9' one:
[uwsgi]
fastcgi-socket = 127.0.0.1:3031
fastcgi-modifier1 = 9
; a simple cgi-bin directory (eventually remember to load the cgi plugin)
cgi = /var/www/cgi-bin
now you can place your cgi scripts in /var/www/cgi-bin (remember to give them the executable permission)
You can use UNIX domain sockets too, just remember the httpd servers runs chrooted in /var/www so you have to bind uWSGI sockets in a dir under it:
[uwsgi]
fastcgi-socket = /var/www/run/uwsgi.socket
fastcgi-modifier1 = 9
; a simple cgi-bin directory
cgi = /var/www/cgi-bin
server "default" {
listen on 0.0.0.0 port 80
fastcgi socket "/run/uwsgi.socket"
}
If you want to forward only specific paths to uWSGI, you can use a location directive:
server "default" {
listen on 0.0.0.0 port 80
location "/foo/*" {
fastcgi socket ":3031"
}
location "/cgi-bin/*" {
fastcgi socket ":3032"
}
}
Currently (may 2015) httpd can connect only to tcp fastcgi sockets bound on address 127.0.0.1 and to unix domain sockets