docs/ci/fdo-cache

proxy_cache_path /var/cache/nginx/ levels=1:2 keys_zone=my_cache:10m max_size=24g inactive=48h use_temp_path=off;

server {
	listen 10.42.0.1:80 default_server;
	listen 127.0.0.1:80 default_server;
	listen [::]:80 default_server;
	resolver 8.8.8.8;

	root /var/www/html;

	# Add index.php to the list if you are using PHP
	index index.html index.htm index.nginx-debian.html;

	server_name _;

        add_header X-GG-Cache-Status $upstream_cache_status;
        proxy_cache my_cache;

        location /cache_gitlab_artifacts {
                internal;
                # Gitlabs http server puts everything as no-cache even though
                # the artifacts URLS don't change. So enforce a long validity
                # time and ignore the headers that defeat caching
                proxy_cache_valid 200 48h;
                proxy_ignore_headers Cache-Control Set-Cookie;
                include snippets/uri-caching.conf;
        }

        location /cache {
                # special case gitlab artifacts
                if ($arg_uri ~*  /.*gitlab.*artifacts(\/|%2F)raw/ ) {
                        rewrite ^ /cache_gitlab_artifacts;
                }
                # Set a really low validity together with cache revalidation; Our goal
                # for caching isn't to lower the number of http requests but to
                # lower the amount of data transfer. Also for some test
                # scenarios (typical manual tests) the file at a given url
                # might get modified so avoid confusion by ensuring
                # revalidations happens often.
                proxy_cache_valid 200 10s;
                proxy_cache_revalidate on;
                include snippets/uri-caching.conf;
        }
}