We need to also document ContainerImageRegistryLogin: true. If a user does not specify push_destination in the ContainerImagePrepare setting but provides a credentials they are not used unless ContainerImageRegistryLogin is configured with `true`. Context BZ#1791784. This is probably true for OSP14+ (and maybe even 13). Reported by: alex-schultz https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/15/html/director_installation_and_usage/preparing-for-director-installation#annotations:0eb1a9ea-b076-4302-bd28-377f679171d3
Confirmed OSP15 is also affected.
Documentation has been updated.