https://github.com/euank/sinit-muscl-docker-builder
A Dockerfile for building sinit statically linked with musl
https://github.com/euank/sinit-muscl-docker-builder
Last synced: over 1 year ago
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A Dockerfile for building sinit statically linked with musl
- Host: GitHub
- URL: https://github.com/euank/sinit-muscl-docker-builder
- Owner: euank
- License: unlicense
- Created: 2015-09-07T06:13:06.000Z (almost 11 years ago)
- Default Branch: master
- Last Pushed: 2015-09-07T06:55:15.000Z (almost 11 years ago)
- Last Synced: 2025-01-24T17:19:30.067Z (over 1 year ago)
- Language: Shell
- Homepage: https://hub.docker.com/r/euank/sinit-installer/
- Size: 121 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Tiny sinit Installer
This Dockerfile builds an image that can be used to acquire a small sinit binary.
## Why?
The reason I made this was to make it easier to get a small sinit binary.
If you build `sinit` naively on a standard Linux Distro, you'll end up with a statically linked binary built against libc.
```
$ ls -l sinit
-rwxr-xr-x 1 user group 750920 Sep 6 04:20 sinit
```
See that? Over 700K.. That's unacceptable for a Suckless Tool.
However, the majority of that is because of libc. If you create a dynamically
linked binary instead you'll find a nice clean 8833 byte binary... that
unfortunately can't be executed as an init system meaningfully.
The happy middle ground is to link against musl instead, and that's exactly what this project does.
Running `docker run -v "$(pwd)":/out euank/sinit-installer` will result in a
nice clean 13744 byte statically linked binary that can be used as the init for
a 64-bit Linux of choice.
## Usage
To get a nice small statically linked v1.0 sinit (as compiled by the Dockerhub
automated build machines), simply run `docker run -v "$(pwd)":/out
euank/sinit-installer`.
To compile the latest version of sinit locally, instead run `docker run -v
"$(pwd)":/out euank/sinit-installer master`. You may also pass any other tag or
branch into the first argument for it to be built instead.
## This is dumb
Thanks. I'm still not sure why I thought that downloading 100MB to get a ~13KB
binary was a good idea, but hey, at least Docker foots the bill for hosting the
spare bits.
Issues to the right.
## License
UNLICENSE (that is, Public Domain).
I do not own sinit.