nginx.conf

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


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

  # log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
  #                   '$status $body_bytes_sent "$http_referer" '
  #                   '"$http_user_agent" "$http_x_forwarded_for"';

  log_format main '[$time_local] $remote_addr - $remote_user - $server_name to: $upstream_addr: $request upstream_response_time $upstream_response_time msec $msec request_time $request_time';


  error_log /var/log/nginx/error.log debug; # todo testing remove me not for production use
  access_log  /var/log/nginx/access.log main;

  sendfile        on;

  keepalive_timeout  65;

  #gzip  on;

  server {
    # listen on port 80
    listen 80;
    listen [::]:80;

    root   /usr/share/nginx/html;
    index  index.html index.htm;

    location /ethereum {
      proxy_http_version 1.1;
      proxy_set_header Host $host;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "";
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_pass http://13.125.62.193:8545;
    }

    location /engine/ {
      proxy_http_version 1.1;

      proxy_set_header Host $host;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_pass http://52.78.227.253:8081/;
      # proxy_pass http://matching-engine:8081/;
    }

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to redirecting to index.html
        try_files $uri $uri/ /index.html;
    }

    # Media: images, icons, video, audio, HTC
    location ~* \.(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
      expires 1M;
      add_header Cache-Control "public";
    }

    # Javascript and CSS files
    location ~* \.(?:css|js)$ {
        try_files $uri =404;
        expires 1y;
        add_header Cache-Control "public";
    }

    # Any route containing a file extension (e.g. /devicesfile.js)
    location ~ ^.+\..+$ {
        try_files $uri =404;
    }
  }
}