Function createMasterInfo

src/common/protobuf_utils.cpp:624–656

* Creates a MasterInfo protobuf from the process's UPID. * * This is only used by the `StandaloneMasterDetector` (used in tests * and outside tests when ZK is not used). * * For example, when we start a slave with * `--master=master@127.0.0.1:5050`, since the slave (and consequently * its detector) doesn't have enough information about `MasterInfo`, it * tries to construct it based on the

 *    as derived from the `UPID`.
 */
MasterInfo createMasterInfo(const UPID& pid)
{
  MasterInfo info;
  info.set_id(stringify(pid) + "-" + id::UUID::random().toString());

  // NOTE: Currently, we store the ip in network order, which should
  // be fixed. See MESOS-1201 for more details.
  // TODO(marco): `ip` and `port` are deprecated in favor of `address`;
  //     remove them both after the deprecation cycle.
  info.set_ip(pid.address.ip.in()->s_addr);
  info.set_port(pid.address.port);

  info.mutable_address()->set_ip(stringify(pid.address.ip));
  info.mutable_address()->set_port(pid.address.port);

  info.set_pid(pid);

  Try<string> hostname = net::getHostname(pid.address.ip);
  if (hostname.isSome()) {
    // Hostname is deprecated; but we need to update it
    // to maintain backward compatibility.
    // TODO(marco): Remove once we deprecate it.
    info.set_hostname(hostname.get());
    info.mutable_address()->set_hostname(hostname.get());
  }

  foreach (const MasterInfo::Capability& capability,
           mesos::internal::master::MASTER_CAPABILITIES()) {
    info.add_capabilities()->CopyFrom(capability);
  }

  return info;
}


Label createLabel(const string& key, const Option<string>& value)