user  nginx;
worker_processes  auto;
worker_cpu_affinity 0001 0010 0100 1000;

worker_rlimit_nofile 30000;

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

events {
    use epoll;
    multi_accept on;
    worker_connections  7500;
}

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;
    keepalive_requests 1000;

    proxy_connect_timeout 15s;
    proxy_read_timeout 10s;

    proxy_send_timeout 10s;
    proxy_buffering on;
    proxy_buffers 16 128k;
    proxy_busy_buffers_size 512k;
    
    upstream tomcat_server {
        server <tomcat-ip>:8080 max_fails=20;
        keepalive 1000;
    }
   
    server {
        listen       8080 reuseport;
        server_name  localhost;

        location / {
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Port $server_port;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass http://tomcat_server;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "";
            proxy_read_timeout 900s;
        }
    }
}