[Bug 1815948] Re: [SRU] Upgrade from queens py2 -> rocky py2 packages breaks /usr/share/openstack-dashboard/openstack_dashboard

Łukasz Zemczak 1815948 at bugs.launchpad.net
Thu Mar 7 10:00:00 UTC 2019


Thank you for the verification! The heat-dashboard/armhf autopkgtest
seems to be failing for this upload, but checking the logs this seems to
be a testbed timeout already seen previously. I will be ignoring this
failure temporarily.

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https://bugs.launchpad.net/bugs/1815948

Title:
  [SRU] Upgrade from queens py2 -> rocky py2 packages breaks /usr/share
  /openstack-dashboard/openstack_dashboard

Status in OpenStack openstack-dashboard charm:
  Invalid
Status in Ubuntu Cloud Archive:
  Invalid
Status in Ubuntu Cloud Archive rocky series:
  Fix Committed
Status in horizon package in Ubuntu:
  Invalid
Status in horizon source package in Cosmic:
  Fix Released

Bug description:
  [Impact]
  After upgrading from queens->rocky with the openstack charms, /usr/share/openstack-dashboard/openstack_dashboard is missing files because it is not a symlink (alternative) to /usr/lib/python3/dist-packages/openstack_dashboard.

  Note that the openstack charms are using py2 packages in queens and
  py3 packages in rocky. The upgrade process of the packages goes:

  (1) py2queens -> (2) py2rocky -> (3) py3rocky

  Bad state after upgrade: https://paste.ubuntu.com/p/3GnMTVfZDk/

  Also worth noting that the queens packages did not use alternatives
  for /usr/share/openstack-dashboard/openstack_dashboard. In that
  version of the package the files are copied into /usr/share/openstack-
  dashboard/openstack_dashboard during the package build so there are no
  symlinks/alternatives involved.

  Looking closer during the upgrade..

  After step (1) we have:

  $ update-alternatives --display openstack_dashboard
  juju-45afee-coreycb2-31: Thu Feb 14 19:03:22 2019

  update-alternatives: error: no alternatives for openstack_dashboard

  $ ls -al /usr/share/openstack-dashboard/
  total 56
  drwxr-xr-x   3 root root  4096 Feb 14 18:57 .
  drwxr-xr-x 127 root root  4096 Feb 14 18:56 ..
  lrwxrwxrwx   1 root root    41 Nov 27 19:22 horizon -> ../../lib/python2.7/dist-packages/horizon
  -rwxr-xr-x   1 root root   879 Nov 27 19:22 manage.py
  -rw-r--r--   1 root root   508 Feb 14 18:57 manage.pyc
  drwxr-xr-x  19 root root  4096 Feb 14 18:57 openstack_dashboard
  -rw-r--r--   1 root root 16748 Nov 27 19:22 settings.py
  -rw-r--r--   1 root root 14252 Feb 14 18:57 settings.pyc

  $ ls -al /usr/share/openstack-dashboard/openstack_dashboard/
  total 228
  drwxr-xr-x 19 root root  4096 Feb 14 18:57 .
  drwxr-xr-x  3 root root  4096 Feb 14 18:57 ..
  -rw-r--r--  1 root root   204 May  8  2018 .eslintrc
  -rw-r--r--  1 root root     0 May  8  2018 __init__.py
  -rw-r--r--  1 root root   149 Feb 14 18:57 __init__.pyc
  drwxr-xr-x  3 root root  4096 Feb 14 18:57 api
  drwxr-xr-x  4 root root  4096 Feb 14 19:01 conf
  -rw-r--r--  1 root root  4471 May  8  2018 context_processors.py
  -rw-r--r--  1 root root  3388 Feb 14 18:57 context_processors.pyc
  drwxr-xr-x  3 root root  4096 Feb 14 18:57 contrib
  drwxr-xr-x  6 root root  4096 Feb 14 18:57 dashboards
  drwxr-xr-x  2 root root  4096 Feb 14 18:57 django_pyscss_fix
  drwxr-xr-x  2 root root 12288 Feb 14 19:01 enabled
  -rw-r--r--  1 root root  2084 May  8  2018 exceptions.py
  -rw-r--r--  1 root root   927 Feb 14 18:57 exceptions.pyc
  -rw-r--r--  1 root root  1063 May  8  2018 hooks.py
  -rw-r--r--  1 root root   556 Feb 14 18:57 hooks.pyc
  -rw-r--r--  1 root root  6794 May  8  2018 karma.conf.js
  drwxr-xr-x  4 root root  4096 Feb 14 18:57 local
  drwxr-xr-x 36 root root  4096 Feb 14 18:56 locale
  drwxr-xr-x  3 root root  4096 Feb 14 18:57 management
  -rw-r--r--  1 root root  2171 May  8  2018 policy.py
  -rw-r--r--  1 root root  2034 Feb 14 18:57 policy.pyc
  -rw-r--r--  1 root root 16748 Nov 27 19:22 settings.py
  -rw-r--r--  1 root root 16675 Nov 27 19:22 settings.py.orig
  -rw-r--r--  1 root root 14292 Feb 14 18:57 settings.pyc
  drwxr-xr-x  7 root root  4096 Feb 14 18:56 static
  drwxr-xr-x  7 root root  4096 Feb 14 18:56 templates
  drwxr-xr-x  2 root root  4096 Feb 14 18:57 templatetags
  drwxr-xr-x 11 root root  4096 Feb 14 18:57 test
  -rw-r--r--  1 root root  4135 May  8  2018 theme_settings.py
  -rw-r--r--  1 root root  2130 Feb 14 18:57 theme_settings.pyc
  drwxr-xr-x  5 root root  4096 Feb 14 18:56 themes
  -rw-r--r--  1 root root  2335 May  8  2018 urls.py
  -rw-r--r--  1 root root  1617 Feb 14 18:57 urls.pyc
  drwxr-xr-x  2 root root  4096 Feb 14 18:57 usage
  drwxr-xr-x  2 root root  4096 Feb 14 18:57 utils
  -rw-r--r--  1 root root  4597 May  8  2018 views.py
  -rw-r--r--  1 root root  4430 Feb 14 18:57 views.pyc
  drwxr-xr-x  2 root root  4096 Feb 14 18:56 wsgi

  $ apt policy python-django-horizon
  python-django-horizon:
    Installed: 3:13.0.1-0ubuntu4
    Candidate: 3:13.0.1-0ubuntu4
    Version table:
   *** 3:13.0.1-0ubuntu4 500
          500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
          100 /var/lib/dpkg/status

  At step (2) we have:

  $ apt policy python-django-horizon
  python-django-horizon:
    Installed: 3:14.0.1-0ubuntu1~cloud0
    Candidate: 3:14.0.1-0ubuntu1~cloud0
    Version table:
   *** 3:14.0.1-0ubuntu1~cloud0 500
          500 http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/rocky/main amd64 Packages
          100 /var/lib/dpkg/status

  $ update-alternatives --display openstack_dashboard

  openstack_dashboard - auto mode
    link best version is /usr/lib/python2.7/dist-packages/openstack_dashboard
    link currently points to /usr/lib/python2.7/dist-packages/openstack_dashboard
    link openstack_dashboard is /usr/share/openstack-dashboard/openstack_dashboard
  /usr/lib/python2.7/dist-packages/openstack_dashboard - priority 300

  $ ls -al /usr/share/openstack-dashboard/
  total 36
  drwxr-xr-x   4 root root  4096 Feb 14 19:06 .
  drwxr-xr-x 127 root root  4096 Feb 14 18:56 ..
  drwxr-xr-x   3 root root  4096 Feb 14 19:06 bin
  -rwxr-xr-x   1 root root   881 Dec  5 16:45 manage.py
  drwxr-xr-x   4 root root  4096 Feb 14 19:06 openstack_dashboard
  -rw-r--r--   1 root root 15713 Dec  5 16:45 settings.py

  $ ls -al /usr/share/openstack-dashboard/openstack_dashboard/
  total 24
  drwxr-xr-x 4 root root  4096 Feb 14 19:06 .
  drwxr-xr-x 4 root root  4096 Feb 14 19:06 ..
  drwxr-xr-x 2 root root  4096 Feb 14 19:06 conf
  drwxr-xr-x 2 root root 12288 Feb 14 19:06 enabled

  And after step (3) we have:

  $ update-alternatives --display openstack_dashboard
  openstack_dashboard - auto mode
    link best version is /usr/lib/python3/dist-packages/openstack_dashboard
    link currently points to /usr/lib/python3/dist-packages/openstack_dashboard
    link openstack_dashboard is /usr/share/openstack-dashboard/openstack_dashboard
  /usr/lib/python3/dist-packages/openstack_dashboard - priority 200

  $ ls -al /usr/share/openstack-dashboard
  total 36
  drwxr-xr-x   4 root root  4096 Feb 14 18:28 .
  drwxr-xr-x 127 root root  4096 Feb 14 17:29 ..
  drwxr-xr-x   3 root root  4096 Feb 14 18:28 bin
  -rwxr-xr-x   1 root root   881 Dec  5 16:45 manage.py
  drwxr-xr-x   4 root root  4096 Feb 14 18:28 openstack_dashboard
  -rw-r--r--   1 root root 15713 Dec  5 16:45 settings.py

  $ ls -al /usr/share/openstack-dashboard/openstack_dashboard/
  total 24
  drwxr-xr-x 4 root root  4096 Feb 14 18:28 .
  drwxr-xr-x 4 root root  4096 Feb 14 18:28 ..
  drwxr-xr-x 2 root root  4096 Feb 14 18:28 conf
  drwxr-xr-x 2 root root 12288 Feb 14 18:28 enabled

  [Test Case]
  Deploy bionic-queens openstack-dashboard with openstack charms and upgrade to bionic-rocky.
  Ensure dashboard is functional after upgrade. /usr/share/openstack-dashboard/ should look like:
  ubuntu at juju-cc544d-coreycb2-24:~$ ls -l /usr/share/openstack-dashboard/
  total 24
  drwxr-xr-x 3 root root  4096 Feb 20 19:17 bin
  -rwxr-xr-x 1 root root   881 Feb 20 18:46 manage.py
  lrwxrwxrwx 1 root root    37 Feb 20 19:17 openstack_dashboard -> /etc/alternatives/openstack_dashboard
  -rw-r--r-- 1 root root 15713 Feb 20 18:46 settings.py

  [Regression Potential]
  Low. This fix is limited to the rocky preinst script only. Rocky is the first release to use alternatives (symlinks) for /usr/share/openstack-dashboard/openstack_dashboard/. Prior to Rocky, the required files were copied into /usr/share/openstack-dashboard/openstack_dashboard/.

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