Hey,

So first of all, the default playbook and role is idempotent, so you
can safely re-run it for hosts/service re-configuration.
However, you can skip a specific set of tasks by leveraging Ansible
tags functionality. For instance, you can run `openstack-ansible
os-nova-install.yml --tags nova-config` which will skip package
installation/upgrade steps along with a significant set of steps.
Starting with 2024.1 (Caracal) release we've also added `post-install`
tag universally for all roles, which will execute only post_tasks,
which is mainly limited to config files update. It can be used to save
up time for service re-configurations and was introduced for migration
from HA queues to Quorum Queues for RabbitMQ.

Hope this helps.

пн, 6 янв. 2025 г. в 15:46, engineer2024 <engineerlinux2024@gmail.com>:
>
> can anyone guide me  what are the tasks required for configuring nova service in OSA,
> so that I want to execute only those tasks and db steps , skipping the package installation steps.
>
> So I need to run nova playbook just to configure the nova like nova.conf, populating it with relevant options, do nova db migrate and then just restart the services. Is there a way to do it ?
>
>
> Thanks
> elinux