[pkg-go] Bug#842380: gitlab-ci-multi-runner: mk-prebuilt-images.sh fails at install time

[Dmitry Smirnov]

Hi Vincent,

Sorry it took so long for me to get back to this problem...


On Sunday, 30 October 2016 3:03:19 PM AEDT Vincent Danjean wrote:
> So, I will try to argue a little bit more ;-)

:)


> Do you try the cdebootstrap command itself?

Yes, through mk-prebuilt-images.sh and directly during development of mk-
prebuilt-images.sh. It actually works with cdebootstrap v0.6.4 but not with 
later versions...


> Setting up gitlab-ci-multi-runner (1.7.1+dfsg-1) ...
> W: Docker is not available.

Docker is required to generate image...


> atsina:/tmp/test# cdebootstrap \
>     --flavour=minimal \
>     --exclude="dmsetup,e2fsprogs,init,systemd-sysv,systemd,udev" \
>     --include="bash,ca-certificates,git,netcat-traditional" \
>     stable ./debian-minbase |& tee /tmp/log
> P: Retrieving Release
> P: Retrieving Release.gpg
> [...]
> P: Configuring helper cdebootstrap-helper-apt
> E: Internal error: install

This may suggest an error in cdebootstrap...
I see you've already reported #842579 against cdebootstrap -- thank you.


> Do the cdebootstrap command really works on your systems?

It was working just a few days ago...


>   I also tried to remove this file. mk-prebuilt-images.sh recreates
> a (not working) one.

That may give us a clue why it is happening... Do you have enough disk space 
on the box? Maybe exporting/compressing image runs out of disk space and 
produce invalid file as result?

Anyway I've found a bug that may result in incomplete images because bash 
ignores errors in comands used with pipe even with "set -e". I've just 
uploaded fix for that ("set -o pipefail").


>   In this case, please remove the bad gitlab-runner-prebuilt.tar.xz
> Or ask the user to re-create it with a --force parameter to
> mk-prebuilt-images.sh if he wants to keep a probably problematic
> image.

Noted. I'll think about it. Thanks.
For now I've made some changes that should make image generation more 
reliable. Hopefully "--force" won't be necessary.

Thanks again for your help, feedback and testing, Vincent.
Just uploaded 1.7.1+dfsg-2 should fix this problem.

-- 
Cheers,
 Dmitry Smirnov.

---

What is the truth, but a lie agreed upon.
        -- Friedrich Nietzsche
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