http.conf

# In the main {} context

map $http_user_agent $imgproxy {
	"~imgproxy" 1;
	default 0;
}

map $http_accept $webp_suffix {
	"~image/webp" "@webp";
	default "";
}

proxy_cache_path /var/cache/nginx/imgproxy levels=1:2 keys_zone=imgproxy:100m inactive=1y max_size=4g;
proxy_cache_valid 200 302 2y;
proxy_cache_valid any 10m;
proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504 http_403 http_404 http_429;
proxy_cache_lock on;