nginx.conf

resolver consul:8600 valid=2s ipv6=off;
resolver_timeout 2s;

keyval_zone zone=default:32k state=default.json;
keyval $arg_text $text1 zone=default;

server {
  status_zone default;

  root /usr/share/nginx/html;

  listen 80 default_server;
  server_name _;

  location /replicated {
    mirror /mirror;
    api write=on;
  }

  location /mirror {
    internal;
    proxy_set_header X-Replication-Source master;
    limit_except GET HEAD {
      proxy_pass http://slave.nginx-kv.service.consul$request_uri;
    }
  }

  location / {
    try_files $uri $uri/ index.html;
  }
}