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[Launchpad Bug Tracker <1936833@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package ubuntu-advantage-tools -
27.2.2~21.10.1

---------------
ubuntu-advantage-tools (27.2.2~21.10.1) impish; urgency=medium

  * d/tools.postinst:
    - Do not fail in postinst if cloud-init did not run.
      This fixes the regression introduced in 27.2.1. (LP: #1936833)

 -- Lucas Moura <lucas.moura@xxxxxxxxxxxxx>  Tue, 27 Jul 2021 10:09:18
-0300

** Changed in: ubuntu-advantage-tools (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1936833

Title:
  postinst fails when cloud-init is installed but never ran

Status in ubuntu-advantage-tools package in Ubuntu:
  Fix Released
Status in ubuntu-advantage-tools source package in Xenial:
  Fix Committed
Status in ubuntu-advantage-tools source package in Bionic:
  Fix Committed
Status in ubuntu-advantage-tools source package in Focal:
  Fix Committed
Status in ubuntu-advantage-tools source package in Hirsute:
  Fix Committed

Bug description:
  [Impact]

  Users are not able to install or upgrade ubuntu-advantage-tools in
  situations where cloud-init is installed in the system, but did not
  run - either because of some error, or it was disabled, or it did not
  finished executing yet.

  When cloud-init runs, instance-data.json will be available and cloud-
  id does not fail. The fix checks for the existence of this file, and
  does not run the script if the file is not present.

  Backporting the fix will enable users to install or upgrade ubuntu-
  advantage tools without problems.

  [Test Plan]

  The bug can be reproduced by running:
  "schroot -c impish-amd64 -u root -d /",  
  and then within the chroot, running:
  "apt-get update && apt-get install -y ubuntu-advantage-tools cloud-init".

  Running the above using the patched version of ubuntu-advantage-tools
  should succeed without any errors.

  [Where problems could occur]

  The fix itself just skips a call that adds a warning notice to ua.

  If the user is running on a cloud and has some kind of error in cloud-
  init, the user may miss a warning about having the wrong metapackages
  for the cloud. However, in the case where cloud-init did not run
  because of some error, the instance has a problem anyway.

  If it happens that cloud init did not run yet - as if this happens at
  image creation time - then cloud-init will be later executed, and the
  cloud-id checked in the code so those wrong metapackages are not
  installed.

  
  [Original Description]

  This happens when upgrading to Ubuntu 21.10. This is the full error:

  Setting up ubuntu-advantage-tools (27.2.1~21.10.1) ...
  ERROR: File not found '/run/cloud-init/instance-data.json'. Provide a
  path to instance data json file using --instance-data           dpkg:
  error processing package ubuntu-advantage-tools (--configure):
  installed ubuntu-advantage-tools package post-installation script
  subprocess returned error exit status 1
  dpkg: dependency problems prevent configuration of ubuntu-minimal:
  ubuntu-minimal depends on ubuntu-advantage-tools; however:
  Package ubuntu-advantage-tools is not configured yet.

  ProblemType: Package
  DistroRelease: Ubuntu 21.10
  Package: ubuntu-advantage-tools 27.2.1~21.10.1
  Uname: Linux 5.4.72-microsoft-standard-WSL2 x86_64
  ApportVersion: 2.20.11-0ubuntu67
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Mon Jul 19 14:32:11 2021
  DuplicateSignature:
   package:ubuntu-advantage-tools:27.2.1~21.10.1
   Installing new version of config file /etc/ubuntu-advantage/uaclient.conf ...
   ERROR: File not found '/run/cloud-init/instance-data.json'. Provide a path to instance data json file using --instance-data
   dpkg: error processing package ubuntu-advantage-tools (--configure):
    installed ubuntu-advantage-tools package post-installation script subprocess returned error exit status 1
  ErrorMessage: installed ubuntu-advantage-tools package post-installation script subprocess returned error exit status 1
  Python3Details: /usr/bin/python3.9, Python 3.9.6, python3-minimal, 3.9.4-1
  PythonDetails: N/A
  RebootRequiredPkgs: libc6
  RelatedPackageVersions:
   dpkg 1.20.9ubuntu2
   apt  2.3.6
  SourcePackage: ubuntu-advantage-tools
  Title: package ubuntu-advantage-tools 27.2.1~21.10.1 failed to install/upgrade: installed ubuntu-advantage-tools package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to impish on 2021-07-19 (0 days ago)

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