In Boostack a customer asked to move ephemeral disk to ceph.
In order to do that we set libvirt-image-backend to rbd with:
``` juju config nova-compute libvirt-image-backend=rbd ```
After the config change was applied any action that involves recreating the vm xml (stop and restart, resize, migrate) are failing for existing vms because we hit the following exception:
https://paste.ubuntu.com/p/vNCCfkTVJz/
In order to fix that we need to revert back the libvirt-image-backend to qcow2 perform the operation needed and then set it back to rbd.
We believe that at least this should be documented in the config.yaml
In Boostack a customer asked to move ephemeral disk to ceph.
In order to do that we set libvirt- image-backend to rbd with:
``` image-backend= rbd
juju config nova-compute libvirt-
```
After the config change was applied any action that involves recreating the vm xml (stop and restart, resize, migrate) are failing for existing vms because we hit the following exception:
https:/ /paste. ubuntu. com/p/vNCCfkTVJ z/
In order to fix that we need to revert back the libvirt- image-backend to qcow2 perform the operation needed and then set it back to rbd.
We believe that at least this should be documented in the config.yaml