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Ignored file /etc/apt/apt.conf.d/20auto-upgrades.ucf-dist
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In the past few days when I ran apt manually on Labs instances, I noticed:

scfc@tools-services-01:~/src/tools-manifest$ sudo apt-get install python-mysql.connector
Reading package lists... Done
Setting up python-mysql.connector (1.1.6-1) ...
N: Ignoring file '20auto-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extension

This file is apparently from December 2013:

scfc@tools-services-01:~/src/tools-manifest$ ls -l /etc/apt/apt.conf.d/20auto-upgrades.ucf-dist
-rw-r--r-- 1 root root 80 Dec  6  2013 /etc/apt/apt.conf.d/20auto-upgrades.ucf-dist

and contains apt configuration:

scfc@tools-services-01:~/src/tools-manifest$ cat /etc/apt/apt.conf.d/20auto-upgrades.ucf-dist
APT::Periodic::Update-Package-Lists "0";
APT::Periodic::Unattended-Upgrade "0";

that a) is ignored due to the file name's extension and b) would contradict (IIUC) that Labs instances include apt::unattendedupgrades by default (except Beta-Cluster-Infrastructure).

My assumption is that the instance used to build the VM images was/is dirty, but previously only explicitly named files from /etc/apt/apt.conf.d were copied. After @hashar's change 30b782bf3004950297d50070ab3bcc5dfc18cc59 was merged and new images were built, now all of /etc/apt/apt.conf.d is copied, including the cruft.

Event Timeline

scfc raised the priority of this task from to Needs Triage.
scfc updated the task description. (Show Details)
scfc added a project: Cloud-Services.
scfc added subscribers: scfc, hashar.

@scfc idea seems quite likely and it is quite trivial to verify: just look whether the image building host has /etc/apt/apt.conf.d/20auto-upgrades.ucf-dist

If so delete it on the host and new images need to be produced to get rid of it :-/

I get this on a fresh instance.

hashar changed the task status from Open to Stalled.Oct 12 2015, 6:33 PM

Yup I broke it with which causes the image building script to do a recursive copy and include the unwanted file.

That has been solved by Andrew with:

From T104019:

Building new base images is tedious, and there's a fairly expensive (permanent) overhead for each image that we install; so I won't be rebuilding just for this :)

The file would have to be removed from the building host, then new images generated and that should fix it. See also T104019.

chasemp added a subscriber: chasemp.
hashar claimed this task.

New labs images have been build and they no more shipp the 20auto-upgrades.ucf-dist file in my experience.

Mentioned in SAL (#wikimedia-cloud) [2018-11-07T10:37:18Z] <gtirloni> removed invalid apt.conf.d file from all hosts (T110055)