For 15.7 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:SELinux_legacy/15.7/security:SELinux_legacy.repo
zypper refresh
zypper install container-selinux
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:SELinux_legacy/15.6/security:SELinux_legacy.repo
zypper refresh
zypper install container-selinux
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:SELinux_legacy/15.5/security:SELinux_legacy.repo
zypper refresh
zypper install container-selinux
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:SELinux_legacy/15.4/security:SELinux_legacy.repo
zypper refresh
zypper install container-selinux
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/security:SELinux_legacy/15.3/security:SELinux_legacy.repo
zypper refresh
zypper install container-selinux