Could the Toolforge Kubernetes cluster allow attaching Cinder volumes? Then, tools would have a more modern storage option that’s (probably) faster and more reliable than NFS. It would also help to remove load from Wikimedia’s NFS servers.
Here’s some instructions that a Kubernetes admin could try. As an unprivileged toolforge user, I don’t think I can do this myself.
https://kubernetes.io/blog/2020/02/07/deploying-external-openstack-cloud-provider-with-kubeadm/
When I asked on the wikimedia-cloud IRC channel, @Andrew replied:
I wouldn't expect that to work, although I'm interested in hearing about what you find if you try.