Reuse configuration statements for domains in nginx.conf - nginx

Question

Let's say I have a nginx configuration set up for a domain like this:
server {
root /path/to/one;
server_name one.example.org;
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
Now, if I want to add another domain with different content, is there a way I can re-use equivalent statements from the previous domain, or do I have to duplicate everything for every new domain I want to support?
server {
root /path/to/two; # different
server_name two.example.org; # different
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
I tried moving the location directive outside the server closure, but obviously things don't work like that because I got an error "location directive is not allowed here" when restarting nginx.

Answer 1

This is a good example to use nginx Map module. http://wiki.nginx.org/HttpMapModule
Following is what I tried. It works in my devbox. Note
map directive can only be put in the http block.
performance penalty of declaring a map directive is negligible (see above link)
you can have freedom to have different root folder, or port number, etc.
map $subdomain $root_folder {
one /path/to/one;
two /path/to/two;
}
map $subdomain $port_number {
one 9000;
two 9100;
}
server {
listen 80;
server_name ~^(?P<subdomain>.+?)\.mydomain\.com$;
root $root_folder;
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass 127.0.0.1:$port_number;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}

Answer 2

you can do:
server_name one.example.org two.example.org;
if both are exactly identical except for the domainname
if you have just similar locationblocks you can move those locations to a separate file and then do an
include /etc/nginx/your-filename;
to easily use it in each serverblock