[Bug 1855092] Re: [SRU] Please set MOTD_SHOWN=pam when MOTD was shown

[Brian Murray]

Hello Balint, or anyone else affected,

Accepted pam into eoan-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/pam/1.3.1-5ubuntu1.19.10.0 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 and change the tag from
verification-needed-eoan to verification-done-eoan. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-eoan. 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: pam (Ubuntu Eoan)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-eoan

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https://bugs.launchpad.net/bugs/1855092

Title:
  [SRU] Please set MOTD_SHOWN=pam when MOTD was shown

Status in pam package in Ubuntu:
  In Progress
Status in pam source package in Eoan:
  Fix Committed

Bug description:
  [Impact]

    * Users of containers may never see the MOTD of the container if they are always to the container's shell without PAM being involved.
    * MOTD contains important information about the system's health including the security updates to be installed thus it is desired to show MOTD in container shells, too.
    * The fix in update-motd is creating a snippet in /etc/profile.d which shows MOTD, but only if UPDATE_MOTD is not set, to avoid printing MOTD twice.

  [Test Case]

   * Log in to the system, where PAM prints the MOTD.
   * After seeing the MOTD observe MOTD_SHOWN set:
     $ echo $MOTD_SHOWN
     pam
     $

  [Regression Potential]

   * The fix is simple thus it is unlikely to see any regression due to bad implementation.
   * The newly set environment variable may interact with existing software, but this variable seems to be not used:
   https://codesearch.debian.net/search?q=MOTD_SHOWN&literal=1

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