Shocker: Docker implemented in ~300 lines of bash

https://github.com/traceypooh/shocker

by traceypooh • 2 months ago

3 6 2 months ago

github.com

devopsish• 2 months ago

why not just use podman?

traceypooh4• 2 months ago

probably you should. or docker. or some other container engine.

but you can still have fun learning with this minimal tool.

kspetkov79• 2 months ago

This kind of project is useful because it shows that containers are not magic. Not something I would run in production, but good for understanding the parts.

traceypooh4• 2 months ago

agreed. probably not for production. but wow it has been great educationally to see all the parts and pieces from basic linux packages. I wouldn't have believed this could all be done in minimal bash. Thankfully btrfs does a lot of the heavy lifting (and also helps visualize copy-on-write, dir layouts, etc.)

highly recommend the delight playing with it on a VM! :)

traceypooh4• 2 months ago

maaaaybe for production :)

traceypooh4• 2 months ago

there's a bunch of new goodies now, including:

shocker run -e;

shocker run -it (improvements);

shocker run respecting WORKDIR, CMD, ENTRYPOINT;

and for silliness, you can shocker-in-shocker now :D

Shocker: Docker implemented in ~300 lines of bash

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