793dae8fe6
Use "operating-system" to denote that an element provides that to the image being created. This can then be used to specify an abstract dependency in other elements to assist in build-time image verification. Change-Id: Ic125803da65e0f8f8c20ef90b08815f4f7d09762
Use RHEL 7 cloud images as the baseline for built disk images.
Note: As of this writing, RHEL 7 is still in beta, so final download locations are not available. This element defaults to using the RHEL 6.5 image, but that will need to be overridden using the appropriate DIB_* environment variables to point at a RHEL 7 image.
For further details see the redhat-common README.