You don’t need to make any changes to your inventory files. Just keep using your initial inventory and you will be fine.

On 8. Jan 2023, at 09:19, A Monster <amonster369@gmail.com> wrote:

Thank you for your quick response, do I need to change the hosts in my inventory files and keep only the nodes on which these new services will be deployed on, or is it done automatically through the roles defined ?

On Sun, 8 Jan 2023 at 09:15, Oliver Weinmann <oliver.weinmann@me.com <mailto:oliver.weinmann@me.com>> wrote:

...

Hi,

Sure. It is doable. Just make your changes to globals.yml, add the required config files and run e.g. for MAGNUM:

kolla-ansible -i <inventory> deploy --tags common,horizon,magnum Magnum - Container cluster service — kolla-ansible 15.1.0.dev19 documentation docs.openstack.org

<https://docs.openstack.org/kolla-ansible/latest/reference/containers/magnum-guide.html>Magnum - Container cluster service — kolla-ansible 15.1.0.dev19 documentation <https://docs.openstack.org/kolla-ansible/latest/reference/containers/magnum-guide.html> docs.openstack.org <https://docs.openstack.org/kolla-ansible/latest/reference/containers/magnum-guide.html> <https://docs.openstack.org/kolla-ansible/latest/reference/containers/magnum-guide.html>

In that case deploy will not re-deploy your cluster, but pull in the needed containers for magnum and configure it.

...

On 8. Jan 2023, at 08:48, A Monster <amonster369@gmail.com <mailto:amonster369@gmail.com>> wrote:

I've done an openstack deployment using kolla ansible, and after deploying I want to add new services but without having to redo the deployment from scratch in order to keep both the configuration and the data already in use, is this doable ? as I couldn't find anything in the kolla-ansible docs.