Create VM with multiple ephemeral disks using 'openstack' client

Issue

• We're trying to create a VM with multiple ephemeral disks.

• It works with the 'nova' client :

# nova boot --flavor test-flavor --image cirros --nic net-name=test-network --ephemeral size=1,format=ext4 --ephemeral size=2,format=ext4 test-vm

• We can see the 2 ephemeral disks added to the VM :

Disks:
NAME MAJ:MIN        SIZE LABEL         MOUNTPOINT
vda  253:0   53687091200               
vda1 253:1   53678177280 cirros-rootfs /
vdb  253:16   1073741824 ephemeral0    /mnt
vdc  253:32   2147483648 ephemeral1    

• However, we cannot find the syntax to do the same with the openstack client.