docs: function publicIp(server) {
    if (/direct/.test(server.getDriverInfo().type)) {
      return '127.0.0.1';
    }
    return _(os.networkInterfaces())
            .omit(['docker0', 'docker1', 'docker2'])
            .values()
            .flatten()
            .where({family: 'IPv4', internal: false})
            .pluck('address')
            .first()
            || '127.0.0.1';
  }