Example Derived Docker Image Build

by kcollins 3 years ago

macOS ◆ xterm-256color ◆ zsh 1437 views

This demos defining your own derived image that adds whatever custom configurations or other packages to kcollins/ignition Docker image. No need to clone the git repo and edit the master Dockerfile, just use the FROM directive!

Another little side-item is that I bind-mounted that projects/ folder into place within the test containers. The first launch I opened a Designer and added the gateway script I used to test with. Subsequent container launches don’t even restore a gateway backup, they simple pick up that Test project live and it kicks off! Cool stuff…

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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 418148.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/418148.cast',
      document.getElementById('player'),
      { cols: 186, rows: 49 }
    );
  </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/418148 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.