Bug 38011 – UCR is not able to update files bind-mounted by docker

Bug 38011 - UCR is not able to update files bind-mounted by docker


Summary:	UCR is not able to update files bind-mounted by docker

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Docker
Version:	UCS 4.1
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 4.1
Assigned To:	Daniel Tröder
QA Contact:	Philipp Hahn

URL:
Keywords:	interim-1

Depends on:
Blocks:	43479
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Reported:	2015-03-11 15:10 CET by Sönke Schwardt-Krummrich
Modified:	2017-02-02 11:59 CET (History)
CC List:	1 user (show)

See Also:	39542
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Description Sönke Schwardt-Krummrich

2015-03-11 15:10:07 CET

UCR is not able to update files provided by docker, because the files have been bind-mounted into the guest filesystem. UCR tries to create a temporary file and the renames the temp file to original file to perform an atomic replacement.

This fails, as the original bind-mounted file cannot be discarded by a simple move.

Comment 1 Sönke Schwardt-Krummrich

2015-03-11 15:12:26 CET

univention-config-registry has been cherrypicked and patched for scope ucs-teeny.

Comment 2 Sönke Schwardt-Krummrich

2015-06-18 17:32:30 CEST

Changes have been comitted in components/docker

univention-config-registry (???):
r59435 | Bug #38011: Also adjust backend.py for this and remove tmp files
r58905 | Bug #38011: allow UCR to modify bind-mounted files provided by docker

Comment 3 Stefan Gohmann

2015-08-17 08:49:42 CEST

Please merge the changes to 4.1.

Comment 4 Daniel Tröder

2015-08-31 10:50:44 CEST

Merged commits r58905, r59435 and r61446 with r63349 to 4.1.

Comment 5 Stefan Gohmann

2015-09-27 21:15:32 CEST

I've build the package, the latest version wasn't available.

Please add a changelog entry.

Comment 6 Daniel Tröder

2015-09-28 11:04:29 CEST

Added changelog entry in r64032.

Comment 7 Philipp Hahn

2015-10-02 15:45:20 CEST

OK: r63349
OK: r64032
OK: touch empty ; mount --bind empty /etc/issue ; ucr commit /etc/issue ; cat empty

Comment 8 Stefan Gohmann

2015-11-17 12:11:59 CET

UCS 4.1 has been released:
 https://docs.software-univention.de/release-notes-4.1-0-en.html
 https://docs.software-univention.de/release-notes-4.1-0-de.html

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