ansible-roles/roles/nginx/templates/ansible_conf.d/10-cache.conf.j2

proxy_cache_path /var/cache/nginx
                 levels=1:2
                 keys_zone=cache_std:5m
                 max_size={{ nginx_cache_size }}
                 inactive=300m
                 use_temp_path=off;

map $is_cacheable $no_cache {
  default  1;
  1        0;
}