[Bug 2155142] Re: python3-heat-dashboard misses template generator static assets

[Nick Rosbrook]

Hello Guillaume, or anyone else affected,

Accepted heat-dashboard into resolute-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/heat-
dashboard/15.0.0-0ubuntu1.1 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-
resolute to verification-done-resolute. If it does not fix the bug for
you, please add a comment stating that, and change the tag to
verification-failed-resolute. 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: heat-dashboard (Ubuntu Resolute)
       Status: New => Fix Committed

** Tags added: verification-needed-resolute

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https://bugs.launchpad.net/bugs/2155142

Title:
  python3-heat-dashboard misses template generator static assets

Status in Ubuntu Cloud Archive gazpacho series:
  New
Status in OpenStack Snap:
  Triaged
Status in OpenStack Snap 2026.1 series:
  Triaged
Status in heat-dashboard package in Ubuntu:
  Fix Released
Status in heat-dashboard source package in Resolute:
  Fix Committed
Status in heat-dashboard source package in Stonking:
  Fix Released

Bug description:
  [ Impact ]

   * The Resolute `python3-heat-dashboard` package can omit templates and static
     files from the installed `heat_dashboard` module. Heat panels in Horizon may
     then show missing-template errors, missing assets, or broken styling and
     JavaScript.

   * This prevents users from reliably using the Heat Dashboard panels.

   * The upload restores package-data declarations for the required HTML, SCSS,
     CSS, JavaScript, image, and JSON files. It also corrects the Python runtime
     dependency generated for `heat-dashboard-common`.

  [ Test Plan ]

   * Use a disposable Resolute system. Before enabling `resolute-proposed`,
     install `python3-heat-dashboard` and `heat-dashboard-common`, then record
     the installed versions and packaged non-Python files:

         sudo apt update
         sudo apt install python3-heat-dashboard heat-dashboard-common
         dpkg-query -W -f='${Package} ${Version}\n' python3-heat-dashboard heat-dashboard-common
         dpkg -L python3-heat-dashboard | grep '/heat_dashboard/.*\(html\|scss\|css\|js\|svg\|png\|json\)$'

   * On a configured Horizon deployment, open **Project > Orchestration > Stacks**
     and Template Generator. Record missing-template errors, asset 404s, or
     missing styling and JavaScript functionality.

   * Enable `resolute-proposed`, install the candidate versions of both packages,
     and confirm APT selected the proposed build.

   * Confirm the candidate contains representative panel assets:

         PACKAGE_ROOT=/usr/lib/python3/dist-packages/heat_dashboard
         test -f "$PACKAGE_ROOT/content/stacks/templates/stacks/index.html"
         test -f "$PACKAGE_ROOT/static/dashboard/project/heat_dashboard/template_generator/css/hotgen-main.scss"
         test -f "$PACKAGE_ROOT/static/dashboard/project/heat_dashboard/template_generator/js/components/template-generator.module.js"

   * Run the deployment's normal Horizon static-asset collection and reload its
     web service. Recheck the two Heat panels and one unrelated Horizon panel.
     Confirm pages render, assets load, and Template Generator JavaScript works.

  [ Where problems could occur ]

   * An incomplete or incorrectly located manifest entry would still leave Django
     templates or static assets absent. The symptoms would be missing templates,
     asset 404s, unstyled panels, or non-working JavaScript.

   * The recursive package-data rule may include unexpected files. Package-size
     growth, file collisions on upgrade, or a failure in Horizon static collection
     would indicate a regression.

  `python3-heat-dashboard` 15.0.0-0ubuntu1 installs Horizon enabled
  files that reference Heat template generator static assets, but the
  binary package does not include those assets.

  This breaks `openstack-dashboard` package configuration when
  `openstack-dashboard` and `python3-heat-dashboard` are installed
  together in the same apt transaction.

  ## Affected Packages

  - Source package: `heat-dashboard`
  - Binary package: `python3-heat-dashboard`
  - Version: `15.0.0-0ubuntu1`
  - Ubuntu series observed: `resolute`
  - Related package: `openstack-dashboard` `4:25.7.1-0ubuntu1`

  ## Steps to Reproduce

  1. In a clean resolute environment, install both packages in one transaction:
     `apt install openstack-dashboard python3-heat-dashboard`

  2. Observe `openstack-dashboard` postinst running `collectstatic` and
     `compress` after both packages are staged.

  ## Error observed
  CommandError: An error occurred during rendering horizon/_scripts.html:
  'dashboard/project/heat_dashboard/template_generator/js/components/template-generator.module.js' could not be found in the COMPRESS_ROOT '/var/lib/openstack-dashboard/static' or with staticfiles.

  Can also be reproduced when running autopkgtests for heat-dashboard.

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