[Bug 2003772] Re: Cannot list shares in dashboard GUI: "Error: Unable to retrieve share list. 'NoneType' object has no attribute 'pop'"

[Vern Hart]

I can see that python3-manila-ui has this fix in 7.0.0-5
(https://docs.openstack.org/releasenotes/manila-ui/yoga.html) but the
focal/yoga cloud-archive still has 7.0.0:

  $ apt-cache policy python3-manila-ui
  python3-manila-ui:
    Installed: 1:7.0.0-0ubuntu1~cloud0
    Candidate: 1:7.0.0-0ubuntu1~cloud0
    Version table:
   *** 1:7.0.0-0ubuntu1~cloud0 500
          500 http://ubuntu-cloud.archive.canonical.com/ubuntu focal-updates/yoga/main amd64 Packages
          100 /var/lib/dpkg/status
       1:3.0.0-0ubuntu0.20.04.1 500
          500 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages
       1:2.19.2~git2020041511.a2dcb0e-0ubuntu1 500
          500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages

What needs to happen next for the stable release update (SRU) process?

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https://bugs.launchpad.net/bugs/2003772

Title:
  Cannot list shares in dashboard GUI: "Error: Unable to retrieve share
  list. 'NoneType' object has no attribute 'pop'"

Status in OpenStack Manila Dashboard Charm:
  Invalid
Status in Ubuntu Cloud Archive:
  New
Status in manila-ui package in Ubuntu:
  Confirmed

Bug description:
  It is impossible to list shares in OpenStack dashboard GUI. Share list
  is empty and the error message in GUI says: "Error: Unable to retrieve
  share list. 'NoneType' object has no attribute 'pop'".

  It is however possible to list shares with CLI `manila list` command.

  Versions: 
  OpenStack Yoga
  Ubuntu 20.04 Focal
  manila charm: channel yoga/stable, revision 98
  manila-dashboard charm: channel yoga/stable, revision 11
  openstack-dashboard charm: channel yoga/stable, revision 566

  I'm attaching juju overlay bundle with manila-related charms which has
  been used to deploy the environment (overlay-manila.yaml).

  Log files from manila unit for the successful `manila list` call:
  - cli-success_manila-access.log
  - cli-success_manila-error.log

  Output of successful `manila list`:
  - manila-list.out

  Log files from manila and openstack-dashboard units, for failure scenario, when visiting /project/shares/ URL:
  - gui-error_manila-access.log
  - gui-error_manila-error.log
  - gui-error_openstack-dashboard_access.log
  - gui-error_openstack-dashboard_error.log

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