It should be possible to install libvirt without a hard dependency on exotic
storage drivers such as GlusterFS and Ceph RBD. This doesn't currently appear
to be the case:

# rpm -qR libvirt-5.1.0-lp151.2.2
...
libvirt-daemon-driver-storage = 5.1.0-lp151.2.2

# rpm -qR libvirt-daemon-driver-storage
...
libvirt-daemon-driver-storage-gluster = 5.1.0-lp151.2.2
libvirt-daemon-driver-storage-iscsi = 5.1.0-lp151.2.2
libvirt-daemon-driver-storage-logical = 5.1.0-lp151.2.2
libvirt-daemon-driver-storage-mpath = 5.1.0-lp151.2.2
libvirt-daemon-driver-storage-rbd = 5.1.0-lp151.2.2

# rpm -qR libvirt-daemon-driver-storage-gluster
...
libgfapi.so.0(GFAPI_3.4.0)(64bit)

# rpm -qR libvirt-daemon-driver-storage-rbd
...
librados.so.2(LIBRADOS_14.2.0)(64bit)
librbd.so.1()(64bit)

# cat /etc/os-release
NAME="openSUSE Leap"
VERSION="15.1 Beta"
ID="opensuse-leap"
ID_LIKE="suse opensuse"
VERSION_ID="15.1"
PRETTY_NAME="openSUSE Leap 15.1Beta"

Bug ID	1130539
Summary	libvirt has hard dependencies on exotic storage drivers
Classification	openSUSE
Product	openSUSE Distribution
Version	Leap 15.1
Hardware	Other
OS	Other
Status	NEW
Severity	Normal
Priority	P5 - None
Component	Virtualization:Tools
Assignee	virt-bugs@suse.de
Reporter	ddiss@suse.com
QA Contact	qa-bugs@suse.de
Found By	---
Blocker	---