in ovb and ovb-rdocloud.yaml, for RHEL-8 overcloud_image_url and ipa_image_url, release and dlrn_hash/tag was hardcoded to master and due to this master image gets pulled in train job also leading to unwanted to RHEL8 fs01 train job. Closes-Bug: #1853978 Change-Id: I737c6c272448eca14683b845563102afd0fc0f96 Signed-off-by: Chandan Kumar (raukadah) <chkumar@redhat.com>