For openSUSE Leap 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:vagrant/openSUSE_Leap_15.3/Virtualization:vagrant.repo
zypper refresh
zypper install rubygem-bcrypt_pbkdf
For SLE 15 SP3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:vagrant/SLE_15_SP3/Virtualization:vagrant.repo
zypper refresh
zypper install rubygem-bcrypt_pbkdf
For SLE 15 SP2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:vagrant/SLE_15_SP2/Virtualization:vagrant.repo
zypper refresh
zypper install rubygem-bcrypt_pbkdf
For SLE 15-SP1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:vagrant/SLE_15-SP1/Virtualization:vagrant.repo
zypper refresh
zypper install rubygem-bcrypt_pbkdf
For SLE 15 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:vagrant/SLE_15/Virtualization:vagrant.repo
zypper refresh
zypper install rubygem-bcrypt_pbkdf