[Bug 1543025] [NEW] Wrong UTC zoneinfo in cloud-images

[Stefan Bader]

Public bug reported:

ADT runs use cloud-images to create test VM environments. For the Xenial cloud-images I observed a weird issue where libvirt suddenly fails its build-time tests on a time offset test on UTC.
Looking at the prepared image (cloud-init did already run there), I found that indeed a command-line of

TZ=UTC date

reports a CET based time. Looking further this seems to drill down into

/usr/share/zoneinfo/UTC -> Zulu

and that (Zulu another term for UTC) Zulu file looks quite bigger that
the same on other hosts and contains the CET string as well (normal
~128b, wrong size 2335). Forcing a reinstall of tzdata will fix the file
and also allows the libvirt test to pass.

So I am not sure this is wrong in the initial image base or gets in some
way broken during cloud-init. Thats why I start reporting it against
cloud-init.

** Affects: cloud-init (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1543025

Title:
  Wrong UTC zoneinfo in cloud-images

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