Comment 7 for bug 1849671

The userid and group are setup by a preinstall in the openstack-barbican-common RPM. However, this package does not have a Requires against shadow-utils, which provides the useradd and groupadd utilities - instead, the openstack-barbican RPM has this Requires. In this installation, openstack-barbican-common installed before shadow-utils, and the useradd and groupadd commands failed.