[Bug 1878654] Re: Remove automatically added groups from os-login

[Łukasz Zemczak]

Hello Steve, or anyone else affected,

Accepted google-compute-engine-oslogin into focal-proposed. The package
will build now and be available at https://launchpad.net/ubuntu/+source
/google-compute-engine-oslogin/20200925.00-0ubuntu3~20.04.0 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, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. 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.

** Tags removed: verification-done-focal
** Tags added: verification-needed-focal

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https://bugs.launchpad.net/bugs/1878654

Title:
  Remove automatically added groups from os-login

Status in gce-compute-image-packages package in Ubuntu:
  Fix Released
Status in gce-compute-image-packages source package in Xenial:
  Fix Released
Status in gce-compute-image-packages source package in Bionic:
  Fix Released
Status in gce-compute-image-packages source package in Eoan:
  Fix Released
Status in gce-compute-image-packages source package in Focal:
  Fix Released
Status in gce-compute-image-packages source package in Groovy:
  Fix Released

Bug description:
  [Impact]

  The google_oslogin_control script included in the google-compute-
  engine-oslogin binary package adds every new user to several
  unnecessary/unexpected groups. Upstream recommends disabling this
  behavior.

  [Test Case]

  Examine the /usr/bin/google_oslogin_control and ensure that the variable
  assignment for

    group_conf_entry

  in the modify_group_conf() function does not contain any of the
  following groups:

    dip, plugdev, adm, docker, lxd

  [Regression Potential]

  Implemented incorrectly, this could break group setup for users on new
  gce instances. Users may also have to alter configuration management
  tools that expect users to already have access to e.g. the docker or
  lxd group by default.

  [References]

  Upstream PR and commits:

    https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29

    https://github.com/GoogleCloudPlatform/guest-
  oslogin/commit/50b0fb7b5804c22ef9581e7dc91875801dfa5469

    https://github.com/GoogleCloudPlatform/guest-oslogin/pull/30

    https://github.com/GoogleCloudPlatform/guest-
  oslogin/commit/88f1ba85e20b3b3a07bfad2eeb723a6b06e41fc8

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