Bug 42498 – While upgrading Non-Docker to Docker Apps, unjoin scripts from the Non-Docker App are run last

Bug 42498 - While upgrading Non-Docker to Docker Apps, unjoin scripts from the Non-Docker App are run last


Summary:	While upgrading Non-Docker to Docker Apps, unjoin scripts from the Non-Docker...

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	App Center
Version:	UCS 4.1
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 4.1-3-errata
Assigned To:	Dirk Wiesenthal
QA Contact:	Felix Botner

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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2016-09-26 01:09 CEST by Dirk Wiesenthal
Modified:	2016-09-28 14:05 CEST (History)
CC List:	1 user (show)

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What kind of report is it?:	Bug Report
What type of bug is this?:	3: Simply Wrong: The implementation doesn't match the docu
Who will be affected by this bug?:	3: Will affect average number of installed domains
How will those affected feel about the bug?:	3: A User would likely not purchase the product
User Pain:	0.154
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School Customer affected?:
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Description Dirk Wiesenthal

2016-09-26 01:09:47 CEST

If the new App version is Docker, the new lib is used. If the new lib is used, upgrade goes like this:

 Install new version (start docker container)
 Remove old version (apt packages)
 Done

Problem: apt packages may run their unjoin script in postinst. This script may break the App, at least it will probably uninstall the join script of the (now) current App version.

Comment 1 Dirk Wiesenthal

2016-09-26 01:59:04 CEST

In
  univention-appcenter 5.0.22-18.224.201609260147

the join script is run during the "install" and then re-run after the "uninstall". I did not remove the first run as just makes it more complicated. The remove routine for already installed unjoin scripts just before running join scripts has been improved. This way some unjoin scripts are never run.

Comment 2 Felix Botner

2016-09-27 18:23:17 CEST

OK - during upgrade docker the join script(s) are called 
OK - YAML
OK - merged to 4.2-0

Comment 3 Janek Walkenhorst

2016-09-28 14:05:50 CEST

<https://errata.software-univention.de/ucs/4.1/279.html>