Introductory demo for the Sysbox container runtime (get it at www.nestybox.com).

by ctalledo 5 years ago

GNU/Linux ◆ xterm-256color ◆ bash 16009 views

The demo shows Docker-in-Docker done securely.

We show the following actions:

Install the Nestybox container runtime “Sysbox” on the host.
Deploy a system container using Docker + Sysbox. The system container has systemd + docker + ssh in its image.
Log in to the system container via ssh.
Deploy a Docker container inside the system container.
Verify the Docker inside the system container is totally isolated from the Docker on the host.
Verify that the system container is an unprivileged container.

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You can download this recording in asciicast v1 format, as a .json file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 282754.json

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/282754.json',
      document.getElementById('player'),
      { cols: 136, rows: 63 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't provide GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed, generate a GIF with the following command:

agg https://asciinema.org/a/kkTmOxl8DhEZiM2fLZNFlYzbo demo.gif

Or, if you already downloaded the recording file:

agg demo.cast demo.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.