Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:PSuarezHernandez:tests:github/openSUSE_Tumbleweed/home:PSuarezHernandez:tests:github.repo
zypper refresh
zypper install salt-master
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:PSuarezHernandez:tests:github/15.6/home:PSuarezHernandez:tests:github.repo
zypper refresh
zypper install salt-master
Для 15.5 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:PSuarezHernandez:tests:github/15.5/home:PSuarezHernandez:tests:github.repo
zypper refresh
zypper install salt-master