CentOS Stream 8 (aka CentOS 8 Stream) is the currently supported runtime platform. [0] Some background history: The Manila team has asked QA to test centos-8-stream in the common gate. A bit later it turned out the point releases of CentOS 8 (aka CentOS Linux 8) will stop happening entirely by the end of 2021. [1] Includes a workaround to the edk2-ovmf issue on CentOS Stream 8 x86_64. [0] https://governance.openstack.org/tc/reference/runtimes/xena.html [1] https://lists.centos.org/pipermail/centos-devel/2020-December/075451.html Change-Id: Iee5a262af757f27f79ba1d6f790e949427dca190