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[Bug 1913581] Re: [plugin][systemd] prefer resolvectl over systemd-resolve

 

Hello Eric, or anyone else affected,

Accepted sosreport into bionic-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/sosreport/4.1-1ubuntu0.18.04.1 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
bionic to verification-done-bionic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-bionic. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: sosreport (Ubuntu Bionic)
       Status: In Progress => Fix Committed

** Tags added: verification-needed-bionic

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https://bugs.launchpad.net/bugs/1913581

Title:
  [plugin][systemd] prefer resolvectl over systemd-resolve

Status in sosreport package in Ubuntu:
  Fix Released
Status in sosreport source package in Bionic:
  Fix Committed
Status in sosreport source package in Focal:
  Fix Committed
Status in sosreport source package in Groovy:
  Fix Committed
Status in sosreport source package in Hirsute:
  Fix Released
Status in sosreport package in Debian:
  Fix Released

Bug description:
  [Impact]

  'resolvectl' has been introduced in systemd v239. Hence 'systemd-
  resolve' is now considered deprecated.

  In Ubuntu (Focal and onward), to accommodate the transition, a symlink
  has been created as follows:

  $ ls -altr /usr/bin/systemd-resolve
  lrwxrwxrwx 1 root root 10 Jul  6  2020 /usr/bin/systemd-resolve -> resolvectl

  
  In stable releases we have systemd version lt and gt v239:

  #systemd-resolve (wo/ resolvectl cmd):
   systemd | 229-4ubuntu21.27 | xenial-security
   systemd | 229-4ubuntu21.29 | xenial-updates
   systemd | 237-3ubuntu10    | bionic
   systemd | 237-3ubuntu10.38 | bionic-security
   systemd | 237-3ubuntu10.44 | bionic-updates

  #resolvectl (w/ resolvectl and the symlink for 'systemd-resolve'):
   systemd | 245.4-4ubuntu3   | focal
   systemd | 245.4-4ubuntu3.4 | focal-updates
   systemd | 246.6-1ubuntu1   | groovy
   systemd | 246.6-1ubuntu1.1 | groovy-updates
   systemd | 247.1-4ubuntu1   | hirsute

  [Test case]

  * Deploy Ubuntu (A container will do)
  * Run sosreport and make sure the systemd plugin is executed
    ** sosreport -a 
    ** sosreport -o systemd
  * Look the content of the generated tarball under 'path_to_sosreport/sos_commands/systemd/'

  And you'll find the output of 'systemd'resolve' for statistics and
  status.

  What we want is to sosreport to prefer 'resolvectl' iff it
  exists/executable.

  [Where problem could occur]

  This 'sos' change enable 'resolvectl' as the preference but remains
  backward compatible with 'systemd-resolve' for system with systemd
  version lt v239.

  If a problem have to occur, it will only be impacting the systemd
  plugin itself, not the core functionalities of 'sos' nor its other
  plugins.

  [Other information]

  Upstream:
  https://github.com/sosreport/sos/pull/2385
  https://github.com/sosreport/sos/pull/2385/commits

  Debian:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=979264

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