在使用promises时，如何从dockerode捕获stdout？

const Docker = require('dockerode');

const docker = new Docker();

const container = docker.getContainer('容器ID');
const execOptions = {
  Cmd: ['命令'],
  AttachStdout: true,
};
const exec = await container.exec(execOptions);
const stream = await exec.start();

const stdoutPromise = new Promise((resolve, reject) => {
  let stdoutData = '';
  stream.on('data', (chunk) => {
    stdoutData += chunk.toString();
  });
  stream.on('end', () => {
    resolve(stdoutData);
  });
  stream.on('error', (err) => {
    reject(err);
  });
});

const stdout = await stdoutPromise;
console.log(stdout);