OpenTSDB nginx

nginx.conf

daemon off;
user www-data;
worker_processes 1;
pid /var/run/nginx.pid;

events {
  worker_connections 1024;
}

http {
  sendfile on;
  tcp_nopush on;
  tcp_nodelay on;
  keepalive_timeout 65;
  types_hash_max_size 2048;
  server_tokens off;

  server_names_hash_bucket_size 32;

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

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

  gzip on;
  gzip_disable "msie6";

  server {
    listen 80 default_server;
    server_name _;

    open_log_file_cache max=1000 inactive=20s min_uses=2 valid=1m;

    location / {
        if ($request_method = 'OPTIONS') {
          add_header 'Access-Control-Allow-Origin' "$http_origin";
          add_header 'Access-Control-Allow-Credentials' 'true';
          add_header 'Access-Control-Max-Age' 1728000;
          add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
          add_header 'Access-Control-Allow-Headers' 'Authorization,Content-Type,Accept,Origin,User-Agent,DNT,Cache-Control,X-Mx-ReqToken,Keep-Alive,X-Requested-With,If-Modified-Since';
          add_header 'Content-Length' 0;
          add_header 'Content-Type' 'text/plain charset=UTF-8';
          return 204;
        }

        proxy_pass                 http://127.0.0.1:4242;
        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-Server  $host;
        proxy_set_header           X-Forwarded-Host  $host;
        proxy_set_header           Host  $host;

        client_max_body_size       10m;
        client_body_buffer_size    128k;

        proxy_connect_timeout      90;
        proxy_send_timeout         90;
        proxy_read_timeout         90;

        proxy_buffer_size          4k;
        proxy_buffers              4 32k;
        proxy_busy_buffers_size    64k;
        proxy_temp_file_write_size 64k;
    }

    add_header Access-Control-Allow-Origin "*";
    add_header Access-Control-Allow-Methods "GET, OPTIONS";
    add_header Access-Control-Allow-Headers "origin, authorization, accept";
  }
}