[Bug 1702793] Re: Full backport SRU for unattended-upgrades

Balint Reczey balint.reczey at canonical.com
Thu Nov 29 15:54:14 UTC 2018 

** Description changed:

  [Impact]
  
  * I would like to propose a one-off full backport of unattended-upgrades
  1.2ubuntu1 to Bionic, Artful, Xenial and possibly Trusty releases because selectively backporting fixes for crashes and for issues that made u-u unreliable would be more risky thanks to the huge number of fixes and the
  inter-dependencies between them.
  
  [Test Case]
  
  * Since this backport involves fixing several bugs and this bug itself
  covers the full backport I suggest that this bug should be considered
  verified when the following list of bugs are verified:
  
  - TODO add most important bugs
     + LP: #1615381 : apt-get autoremove may remove current kernel
  
  and the following tests are passing:
   - TODO add tests not covered by bugs above
  
  All LP bugs fixed by the backport, comments are welcome:
     + LP: #1230246
     + LP: #1260041 SRU template ok
     + LP: #1269177 SRU template ok
     + LP: #1357093
     + LP: #1396787 SRU template ok
     + LP: #1446552
     + LP: #1455097
     + LP: #1458204
     + LP: #1544942
     + LP: #1577215
     + LP: #1602536 SRU template ok
     + LP: #1615381
     + LP: #1624644 SRU template ok
     + LP: #1632361
     + LP: #1649709
     + LP: #1654070
     + LP: #1654600 SRU template ok
     + LP: #1675079 SRU template ok
     + LP: #1680599
     + LP: #1686470 SRU template ok
     + LP: #1687129 to add u-u test case
-    + LP: #1690980 
+    + LP: #1690980
     + LP: #1698159
     + LP: #1702793 this bug
     + LP: #1714019 just a merge request
     + LP: #1718419 just a merge request
     + LP: #1719630
     + LP: #1722426 just a merge request
     + LP: #1737441
     + LP: #1737442 to add u-u test case
     + LP: #1737635
     + LP: #1737637
     + LP: #1737717
     + LP: #1741579
     + LP: #1764797 just a merge request
     + LP: #1773033 SRU template ok
     + LP: #1775292 SRU template ok
     + LP: #1775307 SRU template ok
     + LP: #1778219 SRU template ok
     + LP: #1778800 SRU template ok
     + LP: #1779157
     + LP: #1781176 SRU template ok
     + LP: #1781183 SRU template ok
     + LP: #1781446 SRU template ok
     + LP: #1781586 SRU template ok
     + LP: #1785093 SRU template ok
     + LP: #1789637 SRU template ok
     + LP: #1803749 SRU template ok
  
  [Regression Potential]
  
  * Due to this update covering the full backport unattended-upgrades can regress in any imaginable way including failing to install, upgrade, run, or removing essential packages from the system. Those are unlikely.
  * There are open bugs about u-u being slower than in the past, thus this may be a likely regression but IMO the pending speed optimizations should not be blocking the backport because the reliability issues are more important to fix and speed optimizations can be cherry-picked later.
- * LP: #1773033 is a regression causing u-u to not install upgrades on shutdown when the system was started on battery. I have a WIP fix and can add the fix to the SRU if needed.
  
  [Other Info]
  
  I asked for an exception for the package in following the SRU process:
  https://lists.ubuntu.com/archives/ubuntu-release/2018-May/004479.html
  
  I'm preparing the backport in ppa:rbalint/scratch and also run
  autopkgtests on it in addition to testing it manually in VMs.
  
  [Original Bug Text]
  
  Changes to support day-of-week patching and logging to syslog were added
  to upstream (https://github.com/mvo5/unattended-upgrades) over a year
  ago. These changes are not present in the latest Xenial nor Trusty
  packages (0.90 and 0.82.1) - requesting that these changes be pulled
  from upstream.

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https://bugs.launchpad.net/bugs/1702793

Title:
  Full backport SRU for unattended-upgrades

Status in unattended-upgrades package in Ubuntu:
  In Progress

Bug description:
  [Impact]

  * I would like to propose a one-off full backport of unattended-upgrades
  1.2ubuntu1 to Bionic, Artful, Xenial and possibly Trusty releases because selectively backporting fixes for crashes and for issues that made u-u unreliable would be more risky thanks to the huge number of fixes and the
  inter-dependencies between them.

  [Test Case]

  * Since this backport involves fixing several bugs and this bug itself
  covers the full backport I suggest that this bug should be considered
  verified when the following list of bugs are verified:

  - TODO add most important bugs
     + LP: #1615381 : apt-get autoremove may remove current kernel

  and the following tests are passing:
   - TODO add tests not covered by bugs above

  All LP bugs fixed by the backport, comments are welcome:
     + LP: #1230246
     + LP: #1260041 SRU template ok
     + LP: #1269177 SRU template ok
     + LP: #1357093
     + LP: #1396787 SRU template ok
     + LP: #1446552
     + LP: #1455097
     + LP: #1458204
     + LP: #1544942
     + LP: #1577215
     + LP: #1602536 SRU template ok
     + LP: #1615381
     + LP: #1624644 SRU template ok
     + LP: #1632361
     + LP: #1649709
     + LP: #1654070
     + LP: #1654600 SRU template ok
     + LP: #1675079 SRU template ok
     + LP: #1680599
     + LP: #1686470 SRU template ok
     + LP: #1687129 to add u-u test case
     + LP: #1690980
     + LP: #1698159
     + LP: #1702793 this bug
     + LP: #1714019 just a merge request
     + LP: #1718419 just a merge request
     + LP: #1719630
     + LP: #1722426 just a merge request
     + LP: #1737441
     + LP: #1737442 to add u-u test case
     + LP: #1737635
     + LP: #1737637
     + LP: #1737717
     + LP: #1741579
     + LP: #1764797 just a merge request
     + LP: #1773033 SRU template ok
     + LP: #1775292 SRU template ok
     + LP: #1775307 SRU template ok
     + LP: #1778219 SRU template ok
     + LP: #1778800 SRU template ok
     + LP: #1779157
     + LP: #1781176 SRU template ok
     + LP: #1781183 SRU template ok
     + LP: #1781446 SRU template ok
     + LP: #1781586 SRU template ok
     + LP: #1785093 SRU template ok
     + LP: #1789637 SRU template ok
     + LP: #1803749 SRU template ok

  [Regression Potential]

  * Due to this update covering the full backport unattended-upgrades can regress in any imaginable way including failing to install, upgrade, run, or removing essential packages from the system. Those are unlikely.
  * There are open bugs about u-u being slower than in the past, thus this may be a likely regression but IMO the pending speed optimizations should not be blocking the backport because the reliability issues are more important to fix and speed optimizations can be cherry-picked later.

  [Other Info]

  I asked for an exception for the package in following the SRU process:
  https://lists.ubuntu.com/archives/ubuntu-release/2018-May/004479.html

  I'm preparing the backport in ppa:rbalint/scratch and also run
  autopkgtests on it in addition to testing it manually in VMs.

  [Original Bug Text]

  Changes to support day-of-week patching and logging to syslog were
  added to upstream (https://github.com/mvo5/unattended-upgrades) over a
  year ago. These changes are not present in the latest Xenial nor
  Trusty packages (0.90 and 0.82.1) - requesting that these changes be
  pulled from upstream.

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