Build a system container image that includes inner container images

by ctalledo 4 years ago secret

GNU/Linux ◆ screen-256color ◆ bash 393 views

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

The demo shows how to use “docker build” to build a system container image that includes inner container images.

Steps shown in the video:

Verify Sysbox is installed and configured as the default Docker runtime (required during the “docker build” only).
Show the Dockerfile
Build the system container image
Deploy the system container using the newly built image
Start Docker inside the system container, and verify that the system container comes pre-loaded with inner container images.

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You can download this recording in asciicast v2 format, as a .cast file.

Download

Replay in terminal

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

asciinema play 281791.cast

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/281791.cast',
      document.getElementById('player'),
      { cols: 136, rows: 84 }
    );
  </script>
</body>
</html>

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

While this site doesn't offer 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 run the following command to create GIF file:

agg https://asciinema.org/a/tYLbk5rQNOQtVgr236kErv7Gn 281791.gif

Or, if you already downloaded the recording file:

agg 281791.cast 281791.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.