Increase fastcgi_read_timeout for single route - php

Question

I have the following Nginx configuration for forwarding requests to a PHP-FPM backend:
server {
...
location / {
try_files $uri $uri/ /index.php$is_args$args;
}
location ~* \.php$ {
fastcgi_split_path_info ^(.+?\.php)(/.*)$;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root/index.php;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
}
}
One specific route in the app needs a slightly longer php max_execution_time setting. I've configured this successfully and verified it works by setting a longer fastcgi_read_timeout in the above config.
However, I don't need this to be applied to every single route. I'm guessing I need a nested location somewhere but nothing I've tried seems to work!

Answer 1

The fastcgi_read_timeout directive does not appear to accept dynamic values, so a separate location block for the special route will be required. Looking at your configuration file, I assume the special route is a unique URI processed by the /index.php script. Something like this should work:
location ^~ /special/route/uri {
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root/index.php;
fastcgi_pass 127.0.0.1:9000;
fastcgi_read_timeout 100s;
}
You can use a prefix location with the ^~ modifier (as above) to override the regex location that usually processes PHP files. Alternatively, you can use a regex location, but place it above the existing regex location so that it takes precedence.
See this document for location syntax.