Re: [Buildroot] Buildroot docker image

["Yann E. MORIN" <yann.morin.1998@free.fr>]

Re.

On 2023-12-10 14:48 +0100, Yann E. MORIN spake thusly:
> Thomas, All,
> 
> On 2023-09-02 09:42 +0200, Thomas Petazzoni via buildroot spake thusly:
> > On Fri, 1 Sep 2023 09:19:02 +0200
> > Arnout Vandecappelle via buildroot <buildroot@buildroot.org> wrote:
> > >   First of all, the one on dockerhub is no longer updated. The images we 
> > > actually use are on registry.gitlab.com/buildroot.org/buildroot/base
> > > 
> > >   But even those images are not really "for user consumption". They are the 
> > > images we use for CI, and they therefore have a bit more stuff in them than 
> > > really needed, e.g. qemu. They are also not updated (on the OS level) - no 
> > > security updates or anything are applied on it.
> > > 
> > >   It would probably be better if we would also create a small image that people 
> > > can use for just building in their CI. A small image based on e.g. Alpine or 
> > > Arch, and that is updated e.g. daily on dockerhub. However, nobody ever 
> > > contributed such an image so we don't have it.
> > 
> > Yann has been working on and off on a set of Docker images for
> > Buildroot. See his branch at
> > https://gitlab.com/ymorin/buildroot/-/commits/yem/dockers/. I indeed
> > shared with him recently on IRC that it would be nice to have a really
> > minimal image, separate from the image used in CI (which has more stuff
> > enabled, most notably python3).
> 
> I was looking at this right now, and in fact I believe the existing
> image is the perfect fir as the minimal image to use.

s/fir/fit/

> Indeed, let's take a look at what we have there, and why we do:
> 
>   MTSCR
>   ×     bc
>   ×     build-essential
>         bzr
>   ×     ca-certificates
>    ×    cmake

cmake should have been in the 'S' column.

Regards,
Yann E. MORIN.

>   ×     cpio
>   ×     cvs
>   ×     file
>   ×     g++-multilib
>   ×     git
>    ×    libc6:i386
>   ×     libncurses5-dev
>   ×     locales
>         mercurial
>       × openssh-server
>      ×× python3
>      ×  python3-flake8
>      ×  python3-magic
>       × python3-nose2
>       × python3-pexpect
>       × python3-pytest
>       × qemu-system-arm
>       × qemu-system-misc
>       × qemu-system-x86
>   ×     rsync
>      ×  shellcheck
>         subversion
>   ×     unzip
>   ×     wget
> 
> M: strictly mandatory
> T: optional, but helps use pre-built toolchains
> S: optional, speeds up the build
> C: needed to run check-package et al.
> R: needed to run the runtime test-suite
> 
> Bazaar, mercurial and subversion are optional, and only required when a
> package is bzr-, hg-, or svn-hosted, but if we want this image to be
> usable generally, it should have all three.
> 
> Since mercurial is a python package, we can't drop python3, and the
> remaining modules are relatively small in comparison to the rest.
> 
> Getting a more minimal image would be just about dropping qemu. That
> would make for an image that we could not use in the CI, and that would
> not be usable to test the changes done to Buildroot. I don't think that
> would mkae for a good image.
> 
> The size of this image is currently ~330MiB to download, and ~975MiB of
> storage; building an image without qemu would not make much of a
> difference.
> 
> So, I think this is the best minimal we can get to, as it contains
> everything that people should need to build and to run the tooling.
> 
> Regards,
> Yann E. MORIN.
> 
> -- 
> .-----------------.--------------------.------------------.--------------------.
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> | +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
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-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'
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