I am trying to figure out the path of least resistance in OpenStack to get from a live CD to a disk image that can be used for deploying new guest instances.
If you boot an OpenStack instance from a live CD, you can install an OS onto the "ephemeral" disk (which will, in this case, be
...that's great, but there's no way to create an image from that disk; the
image-create command will attempt (and fail) to snapshot the live CD itself (because this is the boot volume).
You can create and attach a new volume (using
volume-attach) and then install the OS on that, but there's doesn't appear to be any way to convert this volume into a Glance-hosted image for use by other instances.
As an administrator I can obviously log in to the storage host and create a new glance image directly from the volume block device, but this isn't an avenue available to anyone interacting via the API or web GUI.
Are there any other options available?