Hi,
On 17/5/23 17:01, Ryszard Mielcarek wrote:
is there anyone who already did transition on existing cluster, from package-version to kolla-ansible managed installation? Looking for guides, tips, your experience on that.
We have just completed doing exactly that, from Puppet OpenStack (train) with each service in its own VM, to a straightforward Kolla Ansible (train-eol) config on 3 control plane nodes and same compute nodes with staged migration of the instances. This page gave us great inspiration and structure to the approach:
https://www.stackhpc.com/migrating-to-kolla.html
Our only outage was to migrate databases, haproxy, keepalived and rabbitmq. It may have been possible to avoid that outage, but we decided to simplify those steps a little.
Compute nodes ended up having trouble with mismatching vcpu features and security drivers, so we scheduled and cold migrated the instances across to kolla compute nodes.
I am very pleased with the experience so far, and grateful to the Kolla Ansible community past and present. Next up, upgrades!
Greg.