For openSUSE Leap Micro 5.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:Uyuni:Master/openSUSE_Leap_Micro_5.5/systemsmanagement:Uyuni:Master.repo
zypper refresh
zypper install golang-github-prometheus-prometheus
For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:Uyuni:Master/openSUSE_Leap_15.6/systemsmanagement:Uyuni:Master.repo
zypper refresh
zypper install golang-github-prometheus-prometheus