user www-data;

# detect based on available CPU cores
worker_processes  auto;

# this is 4096 by default. See /proc/<PID>/limits and /etc/security/limits.conf
# usually twice the worker_connections (one for uptsream, one for downstream)
# see also LimitNOFILE=16384 in systemd drop-in
worker_rlimit_nofile 8192;

pid /run/nginx.pid;

events {
    # a single worker has these many simultaneous connections max
    worker_connections  4096;
}

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

    # required for long host names
    server_names_hash_bucket_size 128;

    access_log /var/log/nginx/access.log combined;

    sendfile        on;

    # timeout for client to finish sending headers
    client_header_timeout 30s;

    # timeout for reading client request body (successive read timeout and not whole body!)
    client_body_timeout 60s;

    # keep-alive connections timeout in 65s. this is because many browsers timeout in 60 seconds
    keepalive_timeout  65s;

    # zones for rate limiting
    limit_req_zone $binary_remote_addr zone=admin_login:10m rate=10r/s; # 10 request a second

    include trusted.ips;
    include applications/*.conf;
    include applications/*/*.conf;
}