The work has been already started under https://github.com/oamg/convert2rhel/pull/267.

Acceptance criteria:

• The stream yum variable is passed to dnf after we remove centos-stream-repos package, likely through the `--setopt=stream=8-stream` dnf option
• The system version detection is updated to read CentOS Stream 8 /etc/system-release
• The systeminfo.id has the value "stream" when on CentOS Stream 8
• A new config file, similar to the one for CentOS Linux 8, is created for CentOS Stream 8
• The releasever dnf variable mapping is updated to allow CentOS Stream 8
• Enable automation of running integration tests on CentOS Stream 8 using Packit/Testing Farm
  • https://github.com/packit/packit-service/pull/1599

Additional information:

# cat /etc/yum.repos.d/CentOS-Stream-BaseOS.repo 
[baseos]
name=CentOS Stream $releasever - BaseOS
mirrorlist=http://mirrorlist.centos.org/?release=$stream&arch=$basearch&repo=BaseOS&infra=$infra
# python3 -c 'import dnf, pprint; db = dnf.Base(); pprint.pprint(db.conf.releasever)'
'8'
# cat /etc/yum/vars/stream 
8-stream
# rpm -qf /etc/yum/vars/stream 
centos-stream-repos-8-6.el8.noarch