nginx.conf

user  nginx;
worker_processes  auto;

error_log  /dev/stderr notice;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

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

    log_format json_combined escape=json
      '{'
        '"timestamp":"$msec",'
        '"httpRequest":{'
          '"requestMethod":"$request_method",'
          '"requestUrl":"$scheme://$host$request_uri",'
          '"requestSize":$request_length,'
          '"status":$status,'
          '"responseSize":$bytes_sent,'
          '"userAgent":"$http_user_agent",'
          '"remoteIp":"$http_x_forwarded_for",'
          '"serverIp":"$server_addr",'
          '"referer":"$http_referer",'
          '"latency":"${request_time}s",'
          '"protocol":"$server_protocol"'
        '}'
      '}';

    map $status $loggable {
        ~^[23]  0;
        default 1;
    }

    access_log  /dev/stdout  json_combined if=$loggable;

    gzip              on;
    gzip_buffers      16 8k;
    gzip_comp_level   6;
    gzip_http_version 1.1;
    gzip_min_length   0;
    gzip_proxied      any;
    gzip_types        application/javascript application/json text/css text/plain;
    gzip_vary         on;

    keepalive_timeout  60;

    sendfile    on;
    tcp_nodelay on;
    tcp_nopush  on;

    server_tokens off;

    upstream backend {
        server battleblocks-backend-service:8000;
    }

    server {
        listen       8080 default_server;
        server_name  $hostname;

        location / {
            access_log off;
            index      index.html;
            root       /usr/share/nginx/html;
            try_files  $uri $uri/ /index.html;
        }

        location /api {
            proxy_pass http://backend;
        }
    }
}