Comment 2 for bug 1653947

While technically we did install the percona repo for xtrabackup in Mitaka [1], we ensured it's uninstalled [2] before installing the fetched version [3].

I'm not sure there is therefore a regression in Newton/master there: in the container we, by default, use the package, because use_percona_upstream is set to false by default (on ubuntu).

However, if a container was upgraded from M to N, I don't think (I didn't check) the upgrade tool removed this repo, and we don't ensure the repo was removed (that is a bug IMO) [4], so we could end up with a mess.

Is that what you encountered?

[1]: https://github.com/openstack/openstack-ansible-galera_server/blob/stable/mitaka/tasks/galera_pre_install.yml#L96

[2]: https://github.com/openstack/openstack-ansible-galera_server/blob/stable/mitaka/tasks/galera_install_apt.yml#L58-L73

[3]: https://github.com/openstack/openstack-ansible-galera_server/blob/stable/mitaka/tasks/galera_install_apt.yml#L75-L77

[4]: https://github.com/openstack/openstack-ansible-galera_server/blob/stable/newton/tasks/galera_install_apt.yml#L92-L99