Description of problem:

IIUC /etc/motd is not dynamically changed on EL, thus keep it this way and do not change it.

Bogus action is here:

# cat /usr/lib/systemd/system/imgbase-motd.service
[Unit]
Description=Build motd based on imgbase analysis

[Service]
ExecStart=/usr/sbin/imgbase motd --update
Type=oneshot
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

/etc/motd is sysadmin ownership, if you want to have any "info" after login, just put something into /etc/profile.d/ as this can be "customized" by sysadmin to disable "your info" if it would be conceived as annoying, as...:

# sed -n '/^for.*profile.d/,/done$/p' /etc/profile
for i in /etc/profile.d/*.sh ; do
    if [ -r "$i" ]; then
        if [ "${-#*i}" != "$-" ]; then 
            . "$i"
        else
            . "$i" >/dev/null
        fi
    fi
done

Thus with this solution a sysadmin could remove read bit and get rid of imgbase info.

(At least Debian offers /etc/motd.tail but IIUC there's nothing on EL.)

Version-Release number of selected component (if applicable):
redhat-virtualization-host-image-update-4.0-20160906.0.el7_2.noarch

How reproducible:
100%

Steps to Reproduce:
1. edit /etc/motd
2. update redhat-virtualization-host-image-update
3. see what is in /etc/motd

Actual results:
redhat-virtualization-host-image-update messes with /etc/motd which is traditionally not dynamically updated on EL and thus "steals" a sysadmin's responsibility of /etc/motd content

Expected results:
/etc/motd should be either empty as it is on EL by default or /etc/motd should always have content edited by responsible admin (ie. never dynamically changed by any rpm)

Additional info:
ngn is here because legacy node was detracting too far from EL standards and user experience, thus conform to this goal, thx.