nginx + unicorn + performance tweaks: nginx.conf example

gistfile1.nginxconf

# nginx.conf

user              nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log;

pid        /var/run/nginx.pid;

timer_resolution  500ms;


worker_rlimit_nofile 10240;
events {
    use epoll;
    worker_connections 10240;
}


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

    server_name_in_redirect off;
    server_tokens           off;

    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;
    tcp_nopush     on;

    keepalive_timeout  30;
    tcp_nodelay        off;

    client_body_timeout   10;
    client_header_timeout 10;

    client_header_buffer_size 128;
    client_max_body_size      8m;

    open_file_cache           max=1000 inactive=20s;
    open_file_cache_valid     30s;
    open_file_cache_min_uses  2;
    open_file_cache_errors    on;

    proxy_cache_path  /var/lib/nginx/cache  levels=1:2   keys_zone=cache:80m inactive=1d  max_size=2500m;
    proxy_cache_key   "$scheme$request_method$host$request_uri";
    proxy_cache       cache;

    proxy_temp_path   /var/lib/nginx/proxy;

    proxy_cache_valid  200 302  1d;
    proxy_cache_valid  301      1d;
    proxy_cache_valid  any      1m;

    proxy_ignore_headers  "X-Accel-Redirect" "X-Accel-Expires" "Expires" "Cache-Control" "Set-Cookie";

    proxy_connect_timeout 300;
    proxy_send_timeout    300;
    proxy_read_timeout    300;

    proxy_buffer_size           32k;
    proxy_buffers               4 32k;
    proxy_busy_buffers_size     32k;
    proxy_temp_file_write_size  32k;

    gzip              on;
    gzip_http_version 1.0;
    gzip_disable      "MSIE [1-6]\.(?!.*SV1)";

    gzip_buffers    4 16k;
    gzip_comp_level 2;
    gzip_min_length 0;

    gzip_types    text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript;
    gzip_proxied  expired no-cache no-store private auth;

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