bocker VS dockerfiles

A (joke?) one-liner I came up with while thinking about solutions to centralized container management across multiple SSH hosts. Shame on me.

The name is inspired by bocker [0], albeit this doesn't re-implement docker-compose in bash, I found it to be fitting enough.

I'd love to see someone come up with a smarter and/or shorter way to do this.

[0] https://github.com/p8952/bocker

When I did a talk about docker I also wanted to show a bit of what it does under the hood without going through all the layers and without too much details. This ~120 lines of shell script is really good in providing just an intro into what's needed for containers: https://github.com/p8952/bocker/blob/master/bocker

i tried it and like the concnpt, but until it can be launched via a systemd userspace service (without previously manually booting it) among other problems i will keep using docker (or bocker)

> But you couldn't reimplement podman in a few hundred lines of code.

You don't even need a few hundred: https://github.com/p8952/bocker

And then there's 'dokku' which IIRC, started as a bash version of Heroku.

> Not all ideas have the same quality.

They really do. I've heard all kinds of things in my career, but almost none I would want to dedicate a portion of my life building. Not because they are bad ideas or won't work, but because of the person with the idea or it just didn't interest me. Those people went on to be moderately successful (like hundreds of millions worth) but I'm glad I wasn't on that ride.

Bocker is in this same category...docker clone in bash that's helpful in seeing what's really happening underneath with nsenter, namespaces, network bridging, cgroups, etc.

https://github.com/p8952/bocker

Docker implemented in around 100 lines of bash: https://github.com/p8952/bocker

This is the most mindblowing example for enterprise security teams that think Docker is a new threat on a single tenant Linux host.

No, buddies, all this stuff is already there. If you were fine with your visibility before*, you're still fine. Go find a real problem while we play with our developer dopamine.

* NARRATOR: They shouldn't have been.

Bocker[1] does a reasonably good job of showing the value of Docker was mostly in Docker hub.

[1] https://github.com/p8952/bocker

There is a cool project I've seen called "bocker" (https://github.com/p8952/bocker) which is something of a proof of concept of implementing Docker with bash, which speaks a bit to how Docker is indeed in many ways an amalgam of lower level primitives (such as chroot as you mentioned). Pretty neat!

https://blog.jessfraz.com/post/docker-containers-on-the-desk... is the one I remember, a bit old but still useful to see how she does it.

Seems super painful and indirected for a nebulous gain to me, but find your joy however you want I guess

Jess does some awesome stuff and this is literally what you asked for. hollywood

mildly relevant https://blog.jessfraz.com/post/docker-containers-on-the-desktop/

Some of my day-to-day software.

After knowing that saved Chrome passwords and cookies in Linux are not protected against malicious dependencies in our development environment or other apps in our system, I decided to run my core apps in Docker containers, where their data is not accessible without sudo, and a personal understanding of where stuff is being saved.

These docker containers are also an improved version of https://github.com/jessfraz/dockerfiles/

Contrary to the project above, docker-workspaces runs Chrome in a sandbox, encrypts keys with the help of an also dockerized gnome-keychain, and works in tandem with pulseaudio, so you can use wired headphones (i still need to add some dependencies for it to work with bluetooth headphones).

Thank you. As someone who uses containers a lot (even to run local programs, shout out to https://blog.jessfraz.com/post/docker-containers-on-the-desk...) this makes some sense to me.

I'm a little way into the Nix Pills document (https://nixos.org/guides/nix-pills/why-you-should-give-it-a-...) which seems to start the explanation from a place where I can understand.