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
96509ea025