[elbe-users] removing file in finetuning will upset archive validation

[Torben Hohn]

On Mon, Mar 23, 2020 at 12:14:53PM -0400, Olivier Dion wrote:
> On Mon, 23 Mar 2020, ew.foe at nassur.net wrote:
> > Dear developers,
> >
> > being banned to the home office I have had time to play with elbe
> > (v12.3).
> >
> > So one of the things I'm doing in practically all my builds at work,
> > is this: via a build script
> >
> > - I collect the content of a given directory (./local-changes/) into
> >    an archive added to a temporary .xml file
> >    : cp mybuild.xml tmp.mybuild.xml
> >    : elbe chg_archive tmp.mybuild.xml ./local-changes
> >
> > - then I start elbe initvm and submit this build
> >
> > - during the finetuning stage one of the files in the archive is
> >    called and deleted afterwards:
> >    : cat mybuild.xml
> >    :     <finetuning>
> >    :         <!-- run the separate script from archive -->
> >    :         <command>chmod 0750 /root/f.finetuning.sh</command>
> >    :         <command>/root/f.finetuning.sh</command>
> >    :         <!-- remove the script afterwards -->
> >    :         <rm>/root/f.finetuning.sh</rm>
> >    :     </finetuning>
> >
> > - this fails
> >
> >    : [INFO] Archive validation
> >    : [INFO] ------------------
> >    : [INFO]
> >    : [ERROR] Archive file /root/f.finetuning.sh deleted in finetuning
> >    : [CMD] mkdir -p  
> > /var/cache/elbe/edeaff54-cd39-4457-b429-b9e1d5c652e9/filesystems
> >
> > - this and has been reported before:
> >    http://lists.linutronix.de/pipermail/elbe-users/2019-November/000095.html
> >    http://lists.linutronix.de/pipermail/elbe-users/2020-February/000108.html
> >
> >
> >  From the log files I understand that the commands are executed fine.
> > However, the archive validation step does not know, that the file was
> > removed intentionally.
> >
> > So what is the correct way to do this?
> 
> For your current situation, a sub-tag could be added to the tag archive.
> 
> Something along the lines:
> ----------------------------------------------------------------------
> <archive>
> ...
> <expect-deleted>/root/f.finetuning.sh</expect-deleted>
> <expect-modified>/root/f.finetuning.sh</expect-modified>
> ...
> </archive
> ----------------------------------------------------------------------
> 
> However I see another possibility.  You could 'curl/wget/scp' your
> script, execute it then delete it.  Since the script is not part of the
> archive, it should not raise an error.
> 
> Or write the entire script in a <raw_cmd> tag ..


Or put the script into a <file> tag.


We could also just make it a WARNING.
Whats your opinion on this ?
I dont have strong feelings about it. And if nobody complains, we could
make it a warning.

> 
> >
> > One can argue that this should not be available, because rebuilding
> > the image will be impossible later, if the script is not available.
> 
> -- 
> Olivier Dion
> Linutronix GmbH | Bahnhofstrasse 3 | D-88690 Uhldingen-Mühlhofen
> 
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-- 
Torben Hohn
Linutronix GmbH | Bahnhofstrasse 3 | D-88690 Uhldingen-Mühlhofen
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