Open Stack

> Actually, in my case, the setup is originally deploy by
> Kolla Ansible. Other than the initial deployment, I am
> looking for using Kolla Ansible for maintenance operations.
> What I am looking for, eg. replace a host, can surely be
> done by manual steps or customized script. I'd like to know
> if they are automated by Kolla Ansible.

We do this often by simply using the "limit" flag in Kolla Ansible to only include the controllers and new compute node (after adding the compute node to the multinode.ini file).  Specify "reconfigure" for the action, and not "install".

Eric