Linux containers in 500 lines of code (2016)(blog.lizzie.io)

250 pointsby graderjs4 tahun yang lalu27 comments

blog.lizzie.io

Linux containers in 500 lines of code (2016)

https://blog.lizzie.io/linux-containers-in-500-loc.html

29 comments

black3r4 tahun yang lalu

slightly related: docker clone in 120 lines of bash - https://github.com/p8952/bocker/blob/master/bocker

This is so clever. I love the use of comments and parsing the source file for those comments as a way of displaying help.

LanternLight834 tahun yang lalu

I think they're going for the minimal line count by in lining the docstrings. In some of my own scripts, I've lifted an idea that I saw in the wild where your Usage header and function docstrings are just prefixed with '#/', a more aesthetic and equally unlikely string (which also looks good in blocks, so it could even be restricted to newlines that just are comments, letting the line count breath a but and removing any worry of accidentally using that sequence in code). Our help function would then just 'grep w/e $BASH_SOURCE | cut w/e'.

pmarreck4 tahun yang lalu

is Docker married to btrfs?

tyingq4 tahun yang lalu

Docker defaults to overlay2, but supports btrfs and others: https://docs.docker.com/storage/storagedriver/select-storage...

"Bocker" uses btrfs only.

pmarreck4 tahun yang lalu

I wish Docker had been kept as simple as possible. A Bocker that uses overlay2 could potentially be a Docker-like MVP.

cle4 tahun yang lalu

It's not really a clone, it's a tiny subset of Docker daemon functionality. It's missing huge things like building images from Dockerfiles, pushing to registries, networks, volumes, port forwarding, integration w/ containerd, health checking, event bus, and on and on.

sillysaurusx4 tahun yang lalu

My dreams of one day reading a full clone of docker in 120 lines or less are shattered. Maybe next time.

petepete4 tahun yang lalu

How does three lines of Perl sound?

salawat4 tahun yang lalu

Like a piano falling down the stairs.

Anthony-G4 tahun yang lalu

Previous discussion (Feb 2020): https://news.ycombinator.com/item?id=22232705

benjaminwootton4 tahun yang lalu

A good presentation along similar lines, incidentally by another Liz:

https://youtu.be/8fi7uSYlOdc

est4 tahun yang lalu

Cool, can we support Container Runtime Interface (CRI) with few more lines of code?

pdpi4 tahun yang lalu

This will be a fun read, thanks!

If you'd prefer to see the same ideas in video form, Liz Rice gave a pretty good prsentation on this same topic in 2018: https://www.youtube.com/watch?v=8fi7uSYlOdc

jzer0cool4 tahun yang lalu

I have to freshen up my C skills. I found this interesting to upvoting so I can pick your brain later :)

danuker4 tahun yang lalu

You can "favorite" posts also.

tetris114 tahun yang lalu

I love org mode documents as much as the next guy, but they really need better css for mobile on html export

sethgrisham4 tahun yang lalu

Honestly thats something that I feel like is both lacking documentation and good, ready to use css templates. Had a bit of a pain a while ago making a stylesheet for my org exports

cpach4 tahun yang lalu

Have you tried water.css? It’s very nice https://watercss.kognise.dev/

lelandfe4 tahun yang lalu

Makes me feel like there’s a potential for a CSS Zen Garden spin off: a collection of small CSS files that make basic HTML look nice. No classes, just styling on raw elements.

cpach4 tahun yang lalu

Indeed. That would be really awesome.

graderjs4 tahun yang lalu

Oh, I discovered this too! I think it's called classless CSS and is actually a thing.

Here's a repo: https://github.com/dbohdan/classless-css

gjvc4 tahun yang lalu

I wish the web had more simple CSS like this.

cpach4 tahun yang lalu

I use it for some of my personal sites. Partly because I’m not incredibly good at typography/layout and partly to save time.

ricardobeat4 tahun yang lalu

Would actually look better with no CSS at all

[deleted]4 tahun yang lalu

matthberg4 tahun yang lalu

Might benefit from a (2016) tag. Date gotten from the homepage: https://blog.lizzie.io/

graderjs4 tahun yang lalu

Oops, thought I'd added that. Thanks. Fixed.

[deleted]4 tahun yang lalu