Global configuration for qcow2 parameters

[jl0815]

Hello.
I created a VM with a QCOW2 root volume. This volume has the following custom parameters: cluster_size=1M, lazy_refcounts=on, preallocation=metadata.

When I create a template from the image and then create an instance from that template, the parameters for the new root volume revert to their default values (e.g., cluster_size 64k).

Is there a way to configure parameters for QCOW2 images that will then be used when creating new instances?

Kind regards,
JL

[DaanHoogland]

@jl0815 , this sounds like something that needs implementing. I am not sure in which step the block size changes.