Running os-nova-install with --limit may not distribute SSH keys correctly

[Andrew Bonney]

This issue is similar to https://bugs.launchpad.net/openstack-ansible/+bug/1830037 but affects the os_nova role.

If the os-nova-install playbook runs against a limited subset of compute nodes then the 'nova_pubkey' fact will only get set for these cases: https://github.com/openstack/openstack-ansible-os_nova/blob/master/tasks/nova_compute_key_populate.yml#L38

When the key distribution runs and this fact isn't defined, some hosts' keys will fail to be distributed to the hosts within the limit: https://github.com/openstack/openstack-ansible-os_nova/blob/master/templates/nova-key-insert.sh.j2#L21

[Dmitriy Rabotyagov (noonedeadpunk)]

Hi Andrew,

I guess it's not a big, but as designed as for now.
To get keys distributed you need to run os-nova-install playbook across all nova_compute hosts but with specifying the nova-keys tag instead of doing limit. But we will think about the better ways to do that.

[Andrew Bonney (andrewbonney)]

That makes sense. At least that gives me a quicker way to fix things if I get into problems as a result of using --limit. Thanks.