# Source: https://www.authelia.com/docs/deployment/supported-proxies/nginx.html
proxy_cache_bypass  $cookie_session;
proxy_no_cache      $cookie_session;
proxy_http_version  1.1;

# Proxy headers
proxy_set_header Upgrade            $http_upgrade;
proxy_set_header Connection         "Keep-Alive";
proxy_set_header Proxy-Connection   "Keep-Alive";
proxy_set_header Proxy              "";
proxy_set_header Host               $host;
proxy_set_header X-Real-IP          $remote_addr;
proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto  $scheme;
proxy_set_header X-Forwarded-Host   $http_host;
proxy_set_header X-Forwarded-Port   $server_port;
proxy_set_header X-Forwarded-Uri    $request_uri;
proxy_set_header X-Forwarded-Ssl    on;

# Timeout if the real server is dead
proxy_next_upstream                 error timeout invalid_header http_500 http_502 http_503;

# Proxy timeouts
proxy_connect_timeout               240;
proxy_read_timeout                  240;
proxy_send_timeout                  240;
send_timeout                        5m;

# Proxy buffers
proxy_buffers                       64 256k;

# If behind reverse proxy, forwards the correct IP
set_real_ip_from                    10.0.0.0/8;
set_real_ip_from                    172.0.0.0/8;
set_real_ip_from                    192.168.0.0/16;
set_real_ip_from                    fc00::/7;
real_ip_header                      X-Forwarded-For;
real_ip_recursive                   on;