nginx.conf

user www;
worker_processes  5;  ## Default: 1
error_log  logs/error.log;
worker_rlimit_nofile 8192;

events {
  worker_connections  4096;  ## Default: 1024
}

http {
  include    mime.types;

  default_type application/octet-stream;
  log_format   main '$remote_addr - $remote_user [$time_local]  $status '
    '"$request" $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';
  access_log   logs/access.log  main;
  sendfile     on;
  tcp_nopush   on;
  server_names_hash_bucket_size 128; # this seems to be required for some vhosts

  proxy_redirect          off;
  proxy_set_header        Host            $host;
  proxy_set_header        X-Real-IP       $remote_addr;
  proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
  client_max_body_size    10m;
  client_body_buffer_size 128k;
  proxy_connect_timeout   90;
  proxy_send_timeout      90;
  proxy_read_timeout      90;
  proxy_buffers           32 4k;

  proxy_cache_path /tmp/nginx levels=1:2 keys_zone=my_cache:10m max_size=1g use_temp_path=off;
  proxy_cache_lock on;

  # https://www.nginx.com/blog/websocket-nginx/
  map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
  }

  server { # simple reverse-proxy
    listen       80;
    # server_name  domain2.com www.domain2.com;
    access_log   logs/cannedthighs.access.log  main;

    # https://www.nginx.com/blog/benefits-of-microcaching-nginx/
    proxy_http_version 1.1; # Always upgrade to HTTP/1.1
    proxy_set_header Connection ""; # Enable keepalives
    proxy_set_header Accept-Encoding ""; # Optimize encoding

    # https://www.nginx.com/blog/websocket-nginx/
    location /ws {
      proxy_pass http://node-upstream;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "Upgrade";
      proxy_set_header Host $host;
    }

    location /images {
      proxy_cache my_cache;
      proxy_pass http://node-upstream;
      proxy_cache_valid 20s;
    }

    # serve static files
    location ~ \.(html|js|css)$  {
      root    /var/www/cannedthighs/public;
      expires 1d;
    }

    location / {
      proxy_pass http://node-upstream;
    }
  }

  upstream node-upstream {
    zone node 128k;
    keepalive 20; # Keepalive pool to upstream

    server 127.0.0.1:8000;
  }
}

# https://docs.nginx.com/nginx/admin-guide/web-server/web-server/