620f05eb33
The parameters sent to `prepare_image` changed in https://review.openstack.org/#/c/86490/ This patch brings `prepare_image` up to date with that change. It also changes the way configdrive is written to disk, to match that Ironic is now allowing Nova to build an ISO partition and send the raw image to the agent. This patch also swaps out subprocess.call for processutils.execute in the standby module, since the commands were being changed anyway. Lastly, this patch changes the expected `hashes` dict to be a string parameter called `checksum`, to match what glance returns. Change-Id: Id8af9be920ba51e7e1ce60f4ffd1477e413582c9
