map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}

server {
  listen 443 ssl http2 default_server;

  # we at still serve https via IPv6 for the 
  # case that an AAAA record is set.
  listen [::]:443 ssl http2 default_server;

  server_name _;

  include resty-server-https.conf;

  location / {
    proxy_http_version 1.1;
    proxy_pass http://127.0.0.1:48087;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
    proxy_cache_bypass $http_upgrade;

    proxy_read_timeout 6h;
    proxy_send_timeout 6h;
    client_body_timeout 6h;
    send_timeout 6h;
  }
}