nginx proxy for elasticsearch

elasticsearch_proxy.conf

server {
  listen   8080;
  server_name  elasticsearch;
  client_max_body_size 50M;

  error_log   /var/log/nginx/elasticsearch-errors.log;
  access_log  /var/log/nginx/elasticsearch.log;

  location / {

    # Deny Nodes Shutdown API
    if ($request_filename ~ "_shutdown") {
      return 403;
      break;
    }

    # Deny access to Cluster API
    if ($request_filename ~ "_cluster") {
      return 403;
      break;
    }

    # Pass requests to ElasticSearch
    proxy_pass http://localhost:9200;
    proxy_redirect off;

    proxy_set_header  X-Real-IP  $remote_addr;
    proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header  Host $http_host;

    # For CORS Ajax
    proxy_pass_header Access-Control-Allow-Origin;
    proxy_pass_header Access-Control-Allow-Methods;
    proxy_hide_header Access-Control-Allow-Headers;
    add_header Access-Control-Allow-Headers 'X-Requested-With, Content-Type';
    add_header Access-Control-Allow-Credentials true;

    # Authorize access
    auth_basic           "ElasticSearch";
    auth_basic_user_file /usr/local/etc/elasticsearch/passwords;

  }


}