centos-release-ceph-reef provides the YUM repository file for packages of the
CentOS Storage SIG that are used with Ceph Reef

This package needs to be built against the following targets so that the
packages land at the right tag for inclusion in CentOS Extras:

 - core8-extras-common-el8.centos (tag: core8-extras-common-candidate)

Building the package can be done like this:

1. $ rpmbuild -bs \
               --define "_sourcedir $PWD/SOURCES" --define "_srcrpmdir $PWD" \
               --define "dist .el8s.centos" \
               SPECS/centos-release-ceph-reef.spec

2. commit and push SPECS/centos-release-ceph.spec
    $ git add SPECS/ceph.spec 
    $ git push origin c8s-sig-storage-reef

3. retrieve the commit for step 3:
    $ git log|head -n 1
commit 29f19456be12986e86392652331e3a56ff0a88a0

4. build
    $ cbs build extras8s-extras-common-el8s git+https://git.centos.org/rpms/centos-release-ceph.git#29f19456be12986e86392652331e3a56ff0a88a0