Shell access to running services

[yamalight]

Investigate if it's possible to provide direct shell access to running services. Question is basically - can you proxy shell with REST? (websockets?)

[yamalight]

Docker method to be used is Exec Create. Dockerode has Container.exec method for it.

[yamalight]

Following code creates the interactive exec session and pipes stdin to container:

  const options = {
    Cmd: ['bash'],
    Tty: true,
    AttachStdin: true,
    AttachStdout: true,
    AttachStderr: true,
  };

  const exec = await container.execAsync(options);
  const stream = await exec.startAsync({stdin: true});
  container.modem.demuxStream(stream, process.stdout, process.stderr);
  process.stdin.pipe(stream);

[yamalight]

Challenges:

1. This needs a stream between cli and server (websockets?)
2. Either output stream or user input needs to be filtered because code in previous comment doubles input string on send (might be not needed when websockets are used?)

[yamalight]

Closing since core has changed significantly.