Comment 26 for bug 1765191

Upgraded successfully from xenial-mitaka to artful-pike, no regressions were detected (login, assets are loading, router creation works among other operations).

root@juju-dfc611-artful-8:~# apt policy openstack-dashboard
openstack-dashboard:
  Installed: 3:12.0.2-0ubuntu1
  Candidate: 3:12.0.2-0ubuntu1
  Version table:
 *** 3:12.0.2-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu artful-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3:12.0.0-0ubuntu2.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu artful/main amd64 Packages
root@juju-dfc611-artful-8:~# ls -ld /var/lib/openstack-dashboard/
drwx------ 4 horizon horizon 4096 May 24 00:55 /var/lib/openstack-dashboard/
root@juju-dfc611-artful-8:~# ls -l /var/lib/openstack-dashboard/
total 12
-rw------- 1 horizon horizon 64 May 23 23:57 secret_key
drwxr-xr-x 2 horizon horizon 4096 Feb 2 20:24 secret-key
drwxr-xr-x 11 horizon horizon 4096 May 24 00:55 static
-rw-r--r-- 1 horizon horizon 0 May 23 23:57 _var_lib_openstack-dashboard_secret_key.lock
root@juju-dfc611-artful-8:~# vim /etc/apt/sources.list
root@juju-dfc611-artful-8:~# apt-get -qq update
root@juju-dfc611-artful-8:~# apt-get upgrade
...
Setting up openstack-dashboard-ubuntu-theme (3:12.0.2-0ubuntu1.1) ...
Processing triggers for initramfs-tools (0.125ubuntu12.1) ...
update-initramfs: Generating /boot/initrd.img-4.13.0-43-generic
WARNING: Setting CRYPTSETUP in /etc/initramfs-tools/initramfs.conf is deprecated and will stop working in the future. Use /etc/cryptsetup-initramfs/conf-hook instead.
Processing triggers for libc-bin (2.26-0ubuntu2.1) ...
root@juju-dfc611-artful-8:~# apt policy openstack-dashboard
openstack-dashboard:
  Installed: 3:12.0.2-0ubuntu1.1
  Candidate: 3:12.0.2-0ubuntu1.1
  Version table:
 *** 3:12.0.2-0ubuntu1.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu artful-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     3:12.0.2-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu artful-updates/main amd64 Packages
     3:12.0.0-0ubuntu2.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu artful/main amd64 Packages
root@juju-dfc611-artful-8:~# ls -ld /var/lib/openstack-dashboard/
drwxr-xr-x 4 horizon horizon 4096 May 24 01:27 /var/lib/openstack-dashboard/
root@juju-dfc611-artful-8:~# ls -ld /var/lib/openstack-dashboard/
drwxr-xr-x 4 horizon horizon 4096 May 24 01:27 /var/lib/openstack-dashboard/
root@juju-dfc611-artful-8:~# pastebinit /var/log/apt/history.log
http://paste.ubuntu.com/p/42fdRNjbx5/
root@juju-dfc611-artful-8:~# pastebinit /var/log/apt/term.log
http://paste.ubuntu.com/p/RFvg6G6rzv/