[focal][ussuri] nova-compute charm tries to install nova-network which doesn't exist after train

[Alex Kavanagh]

2020-04-09 16:55:02 INFO juju-log cloud-compute:27: Installing ['nova-api', 'nova-network'] with options: ['--option=Dpkg::Options::=--force-confold']
2020-04-09 16:55:24 DEBUG cloud-compute-relation-joined The following packages have unmet dependencies:
2020-04-09 16:55:24 DEBUG cloud-compute-relation-joined nova-network : Depends: python3-nova (= 2:20.0.0-0ubuntu1~cloud0) but 2:21.0.0~b3~git2020032515.35240b0d8c-0ubuntu2~cloud0 is to be installed
2020-04-09 16:55:24 DEBUG cloud-compute-relation-joined E: Unable to correct problems, you have held broken packages.
2020-04-09 16:55:24 INFO juju-log cloud-compute:27: Couldn't acquire DPKG lock. Will retry in 10 seconds
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined Reading package lists...
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined Building dependency tree...
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined Reading state information...
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined Some packages could not be installed. This may mean that you have
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined requested an impossible situation or if you are using the unstable
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined distribution that some required packages have not yet been created
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined or been moved out of Incoming.
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined The following information may help to resolve the situation:
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined The following packages have unmet dependencies:
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined nova-network : Depends: python3-nova (= 2:20.0.0-0ubuntu1~cloud0) but 2:21.0.0~b3~git2020032515.35240b0d8c-0ubuntu2~cloud0 is to be installed
2020-04-09 16:55:34 DEBUG cloud-compute-relation-joined E: Unable to correct problems, you have held broken packages.
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined Traceback (most recent call last):
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/cloud-compute-relation-joined", line 765, in <module>
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined main()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/cloud-compute-relation-joined", line 761, in main
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined assess_status(CONFIGS)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/nova_compute_utils.py", line 898, in assess_status
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined assess_status_func(configs, services_to_check)()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/utils.py", line 1639, in _assess_status_func
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined state, message = _determine_os_workload_status(*args, **kwargs)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/utils.py", line 982, in _determine_os_workload_status
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined configs, required_interfaces)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/utils.py", line 1055, in _ows_check_generic_interfaces
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined required_interfaces)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/utils.py", line 1338, in incomplete_relation_data
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined complete_ctxts = configs.complete_contexts()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/templating.py", line 351, in complete_contexts
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined for i in six.itervalues(self.templates)]
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/templating.py", line 351, in <listcomp>
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined for i in six.itervalues(self.templates)]
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/templating.py", line 127, in complete_contexts
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined self.context()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/contrib/openstack/templating.py", line 112, in context
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined _ctxt = context()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/nova_compute_context.py", line 673, in __call__
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined net_manager = self.network_manager_context()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/nova_compute_context.py", line 644, in network_manager_context
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined ctxt = self.flat_dhcp_context()
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/nova_compute_context.py", line 535, in flat_dhcp_context
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined self._ensure_packages(['nova-api', 'nova-network'])
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/nova_compute_context.py", line 470, in _ensure_packages
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined apt_install(required, fatal=True)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/fetch/ubuntu.py", line 276, in apt_install
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined _run_apt_command(cmd, fatal)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/fetch/ubuntu.py", line 770, in _run_apt_command
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined retry_message="Couldn't acquire DPKG lock")
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/var/lib/juju/agents/unit-nova-compute-0/charm/hooks/charmhelpers/fetch/ubuntu.py", line 748, in _run_with_retries
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined result = subprocess.check_call(cmd, env=env)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined File "/usr/lib/python3.6/subprocess.py", line 311, in check_call
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined raise CalledProcessError(retcode, cmd)
2020-04-09 16:55:35 DEBUG cloud-compute-relation-joined subprocess.CalledProcessError: Command '['apt-get', '--assume-yes', '--option=Dpkg::Options::=--force-confold', 'install', 'nova-api', 'nova-network']' returned non-zero exit status 100.
2020-04-09 16:55:35 ERROR juju.worker.uniter.operation runhook.go:132 hook "cloud-compute-relation-joined" failed: exit status 1

Solution:

Change charm code to not install nova-network; verify the version that it is no longer available in.

[Alex Kavanagh (ajkavanagh)]

Review: https://review.opendev.org/#/c/721233/
will resolved the bug.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/721233
Committed: https://git.openstack.org/cgit/openstack/charm-nova-compute/commit/?id=810ee1b37db7d25f27e2911d61d1f2dace64d792
Submitter: Zuul
Branch: master

commit 810ee1b37db7d25f27e2911d61d1f2dace64d792
Author: Alex Kavanagh <email address hidden>
Date: Mon Apr 20 10:37:07 2020 +0100

    Add focal-ussuri and bionic-ussuri bundle

    This patch adds a focal-ussuri and bionic-ussuri bundles to the tests
    for the charm. The linked bug is concerned with installing
    nova-network, which is not available on Ussuri.

    Closes-Bug: #1872770

    Change-Id: Iea5a682aaebeb6f6941cf9d8f5780473f457e455