需要 openSUSE Leap 15.3 ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:Uyuni:Master:TEST:2:CR/openSUSE_Leap_15.3/systemsmanagement:Uyuni:Master:TEST:2:CR.repo
zypper refresh
zypper install prometheus-postgres_exporter