openstack-ansible/releasenotes/notes/galera-force-cluster-name-c...

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YAML

---
features:
- The ``openstack-ansible-galera_server`` role will now prevent
deployers from changing the ``galera_cluster_name`` variable
on clusters that already have a value set in a running galera
cluster.
You can set the new ``galera_force_change_cluster_name``
variable to ``True`` to force the ``galera_cluster_name``
variable to be changed.
We recommend setting this by running the galera-install.yml playbook
with ``-e galera_force_change_cluster_name=True``, to avoid
changing the ``galera_cluster_name`` variable unintentionally.
Use with caution, changing the ``galera_cluster_name`` value
can cause your cluster to fail, as the nodes won't join if restarted
sequentially.