server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location /jsonrpc {
        rewrite /jsonrpc/?(.*) /$1  break;
        proxy_pass http://rpcnode:8545;
        proxy_redirect     off;
        proxy_set_header   Host $host;
    }

    location /jsonws {
        rewrite /jsonws/?(.*) /$1  break;
        proxy_pass http://rpcnode:8546;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }

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

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}