Method ps

src/docker/docker.cpp:1599–1637

Future<vector<Docker::Container>> Docker::ps(
    bool all,
    const Option<string>& prefix) const
{
  vector<string> argv;
  argv.push_back(path);
  argv.push_back("-H");
  argv.push_back(socket);
  argv.push_back("ps");

  if (all) {
    argv.push_back("-a");
  }

  const string cmd = strings::join(" ", argv);

  VLOG(1) << "Running " << cmd;

  Try<Subprocess> s = subprocess(
      cmd,
      Subprocess::PATH(os::DEV_NULL),
      Subprocess::PIPE(),
      Subprocess::PIPE(),
      None(),
      None(),
      createParentHooks());

  if (s.isError()) {
    return Failure("Failed to create subprocess '" + cmd + "': " + s.error());
  }

  // Start reading from stdout so writing to the pipe won't block
  // to handle cases where the output is larger than the pipe
  // capacity.
  const Future<string>& output = io::read(s->out().get());

  return s->status()
    .then(lambda::bind(&Docker::_ps, *this, cmd, s.get(), prefix, output));
}


Future<vector<Docker::Container>> Docker::_ps(