Ironic is now using diskimage-builder for producing and publishing
official production-ready IPA ramdisks. These jobs test ironic
against changes in diskimage-builder to ensure they still work:
* Two check-image jobs merely build an IPA image with DIB:
* The CentOS 8 job is our primary now and should eventually
become voting.
* The CentOS 7 one is used on stable/train and will be removed
once DIB stops supporting this version.
* The two other jobs build and use the IPA image to deploy a node
in two different ways (pushed via iSCSI and pulled via HTTP).
Since they're likely to be affected by factors outside of DIB
control, they're added non-voting.
Depends-On: https://review.opendev.org/703585
Change-Id: Ibce594657bb90db1bac63fa9f965ee88586f8246
3b27ae1578