debian cloud image demo with cloud-init and NoCloud

by smoser 7 years ago

GNU/Linux ◆ screen.xterm-256color ◆ bash 5651 views

This will demonstrate booting the debian openstack cloud image locally under qemu-system-x86_64 and providing it information on a second disk that is read by the NoCloud datasource in cloud-init.

The debian image is unmodified from a download at https://cdimage.debian.org/cdimage/openstack/

To keep the original image clean we use qemu-img to create a copy-on-write image in qcow2 format backed by the original debian-9.1.1-20170725-openstack-amd64.qcow2 .

‘cloud-localds’ is used to create the ‘seed.img’ is available in the cloud-image-utils package.

2018-04-17:

verified image debian-9.4.3-20180416-openstack-amd64.qcow2 to work via ‘boot’ at http://bit.ly/ci-ubuntu-netconfig

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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 132009.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/132009.json',
      document.getElementById('player'),
      { cols: 80, rows: 27 }
    );
  </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/132009 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.