user nginx;
worker_processes 5;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections 2048;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    keepalive_timeout  65;

    real_ip_header X-Forwarded-For;
    real_ip_recursive on;
    set_real_ip_from 172.0.0.0/8;

    proxy_cache_path /var/cache/nginx levels=1:2:2 keys_zone=local_cache:150m inactive=1h max_size=200m;
    proxy_cache_key "$scheme$request_method$host$request_uri";
    proxy_cache_use_stale error timeout invalid_header http_500;
    proxy_ignore_headers Cache-Control Set-Cookie Expires;

    include /etc/nginx/conf.d/*.conf;
}