Bug 54262 – "univention-app install" not idempotent - samba4 self-conflicting itself

Bug 54262 - "univention-app install" not idempotent - samba4 self-conflicting itself


Summary:	"univention-app install" not idempotent - samba4 self-conflicting itself

Status:	NEW

Product:	UCS
Classification:	Unclassified
Component:	App Center
Version:	UCS 5.0
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	---
Assigned To:	App Center maintainers
QA Contact:	App Center maintainers

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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2021-12-20 09:06 CET by Philipp Hahn
Modified:	2021-12-20 09:38 CET (History)
CC List:	1 user (show)

See Also:
What kind of report is it?:	Bug Report
What type of bug is this?:	6: Setup Problem: Issue for the setup process
Who will be affected by this bug?:	3: Will affect average number of installed domains
How will those affected feel about the bug?:	2: A Pain – users won’t like this once they notice it
User Pain:	0.206
Enterprise Customer affected?:
School Customer affected?:
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Description Philipp Hahn

2021-12-20 09:06:48 CET

> # univention-app install samba4
> Resolving dependencies for samba4
> Going to install Active Directory-kompatibler Domänencontroller (4.13)
> (must_have_no_conflicts_apps) The application conflicts with the following applications:
>                         {'samba4': [{'id': 'samba4', 'name': 'Active Directory-kompatibler Domänencontroller'}]}
> (must_not_be_installed) This application is already installed
> Unable to install. Aborting...
> Failure will leave these apps untouched: samba4

This makes `univention-app` unsuitable for being used from configuration management systems like Ansible, which try to archive a state and expect tools to be idempotent, e.g. the tool should transform the current state into the desired state but do nothing, if the desired state is already achieved.