[Buildroot] [PATCH 4/5] support/docker: add an Arch image

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

Martin, All,

So, I see that K9mail put the saultations at the end of the mail, which
is quite odd... Anyway, let me expand further on my previous reply...

On 2018-07-14 12:01 +0000, Yann E. MORIN spake thusly:
> On July 14, 2018 11:19:10 AM UTC, Martin Bark <martin@barkynet.com> wrote:
> >On 13 July 2018 at 07:38, Yann E. MORIN <yann.morin.1998@free.fr>
> >wrote:
> >> Hopefully, this image is reproducible", since we are using a tagged
> >> base image, plus a pinned repository mirror.
[--SNIP--]
> >It's best practice to combine the update and install from a package
> >manger in one line.  So this should be
> 
> Please see:
> 
> https://git.busybox.net/buildroot/commit/support/docker/Dockerfile?id=c4f844ff3212266f845ea812da2a8647a9f1e13

So, the reasoning is that, since we use a pinned version of the
repository, running "pacman -Sy --noconfirm" will always yield the same
state of the distribution.

Now, it happens that we need to add a new package to the image, e.g. for
local testing. We can thus re-use the intermediate, locally-cached image
that has the local repository updated.

It kinda speeds up things a bit.

> >RUN echo
> >'Server=https://archive.archlinux.org/repos/2018/07/01/$repo/os/$arch'
> >\
> >        > /etc/pacman.d/mirrorlist && \
> >    pacman -Sy --noconfirm \
> >
> >> +# Pin the repository to a known version
> >> +RUN echo
> >'Server=https://archive.archlinux.org/repos/2018/07/01/$repo/os/$arch'
> >\
> >> +        > /etc/pacman.d/mirrorlist && \
> >> +    pacman -Sy
> >> +RUN pacman --noconfirm -S \
> >> +        bc \
> >> +        bzr \
> >> +        cvs \
> >> +        cpio \
> >> +        flake8 \
> >> +        git \
> >> +        mercurial \
> >> +        python \
> >> +        python-nose2 \
> >> +        python-pexpect \
> >> +        qemu \
> >> +        qemu-arch-extra \
> >
> >If you change to using qemu-headless and qemu-headless-arch-extra
> >packages it saves about 500MB on the image size

Ah, that one is interesting to know! :-)

However, are we sure that we don;t need the headed version of qemu?

And why do we even have to have qemu in the image to start with, in the
end?

Regards,
Yann E. MORIN.

> >Thanks
> >
> >Martin
> >
> >> +        rsync \
> >> +        subversion \
> >> +        unzip \
> >> +        wget
> >> +
> >> +RUN sed -i 's/# *\(en_US.UTF-8\)/\1/' /etc/locale.gen \
> >> +    && /usr/sbin/locale-gen
> >> +
> >> +RUN useradd -ms /bin/bash br-user
> >> +
> >> +USER br-user
> >> +WORKDIR /home/br-user
> >> +ENV HOME /home/br-user
> >> +ENV LC_ALL en_US.UTF-8
> >> --
> >> 2.14.1
> >>
> >> _______________________________________________
> >> buildroot mailing list
> >> buildroot at busybox.net
> >> http://lists.busybox.net/mailman/listinfo/buildroot
> 
> Martin, All,
> -- 
> Sent from my phone. Please excuse my brevity.

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