Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:nad1r/openSUSE_Tumbleweed/home:nad1r.repo
zypper refresh
zypper install docker-compose
Для openSUSE Slowroll запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:nad1r/openSUSE_Slowroll/home:nad1r.repo
zypper refresh
zypper install docker-compose
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:nad1r/15.6/home:nad1r.repo
zypper refresh
zypper install docker-compose