For openSUSE Leap 42.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:CaaSP:Head:ControllerNode/openSUSE_Leap_42.3/devel:CaaSP:Head:ControllerNode.repo
zypper refresh
zypper install etcd
For openSUSE Leap 42.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:CaaSP:Head:ControllerNode/openSUSE_Leap_42.2/devel:CaaSP:Head:ControllerNode.repo
zypper refresh
zypper install etcd
For openSUSE Leap 42.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:CaaSP:Head:ControllerNode/openSUSE_Leap_42.1/devel:CaaSP:Head:ControllerNode.repo
zypper refresh
zypper install etcd