RPMs for SLES 12, OpenSUSE Leap 42.X, Tumbleweed, SLES 15, and OpenSUSE
Leap 15 are in the repos of the OpenSUSE Build Service at

http://download.opensuse.org/repositories/home:/glusterfs:/SLES12SP3-4.1/SLE_12_SP3/

http://download.opensuse.org/repositories/home:/glusterfs:/Leap42.3-4.1/openSUSE_Leap_42.3/

http://download.opensuse.org/repositories/home:/glusterfs:/Tumbleweed-4.1/openSUSE_Tumbleweed/

http://download.opensuse.org/repositories/home:/glusterfs:/SLES15-4.1/SLE_15/

http://download.opensuse.org/repositories/home:/glusterfs:/Leap15-4.1/openSUSE_Leap_15/