If you have mod_perl compiled, you can use <Perl> sections to dynamically configure your apache configuration. This is what jcwren uses to automatically configure a virtual host for each of his users. He simply adds to /etc/perlmonk_users, and the next time apache starts up, the virtual host is automatically configured:

<Perl>
  my $server = "perlmonk.org";
  my @users = do { local @ARGV = "/etc/perlmonk_users"; <> }; chomp @u
+sers;

  foreach my $user (@users) {
    push @{ $VirtualHost{"*"} } , {
      ServerName => "$user.$server",
      ServerAdmin => "$user\@$server",
      DocumentRoot => "/home/$user/public_html",
      ScriptAlias => [ "/cgi-bin/", "/home/$user/public_html/cgi-bin/"
+ ],
      CustomLog => [ "/home/$user/www_logs/access_log", "common" ],
      ErrorLog => "/home/$user/www_logs/error_log"
    };
  }
</Perl>
[download]

Anyway, it's just an example of what can be done. Space is the limit... (most likely; the physicists haven't worked that one out yet)

[ ar0n ]