OS::Cinder::Volume
#      source_volid: { get_param: vol_id }
      image: { get_param: up_image }
image:
  constraints:
  - {custom_constraint: glance.image}
  description: If specified, the name or ID of the image to create the volume from.
  immutable: false
  required: false
  type: string
  update_allowed: falsesnapshot_id:
  constraints:
  - {custom_constraint: cinder.snapshot}
  description: If specified, the snapshot to create the volume from.
  immutable: false
  required: false
  type: string
  update_allowed: false
source_volid:
  constraints:
  - {custom_constraint: cinder.volume}
  description: If specified, the volume to use as source.
  immutable: false
  required: false
  type: string
  update_allowed: false