Use openstack keypair for juju bootstrap controller

Hey there,
I want to bootstrap a juju controller on a private openstack. Can I tell juju to use a keypair that is stored on openstack?

To be clear, by keypair do you mean an ssh key to be setup on the vm running on the openstack? Or do you mean a different keypair?

Yes I mean the ssh key that I import to openstack to access the machines.