Comment 17 for bug 1828259

Here's how we currently handle subordinate package dependencies in charm-nova-compute. See commit 32ef5b4c and 280c0d7d. For this bug I think we can fix it in this code with our current approach but it's clearly a bit awkward to handle subordinate dependencies in nova-compute. I'd like to also open another bug to see if we can figure out a better way to tell subordinates they need to upgrade and allow them to upgrade their own packages.

def determine_packages()
    ...
    if cmp_release >= 'rocky':
        packages = [p for p in packages if not p.startswith('python-')]
        packages.extend(PY3_PACKAGES)
        if filter_missing_packages(['python-ceilometer']):
            packages.append('python3-ceilometer')
        if filter_missing_packages(['python-neutron']):
            packages.append('python3-neutron')
        if filter_missing_packages(['python-neutron-fwaas']): # to be added for this bug
            packages.append('python3-neutron-fwaas') # to be added for this bug
        if virt_type == 'lxd':
            packages.append('python3-nova-lxd')

    return packages