It seems that the lab from https://role.rhu.redhat.com/rol-rhu/rhz/rhls/course/cl110-13.0/ch12s07 is missing to setup an image named rhel7-web --- only rhel7 being present and I do not remember having to create this image in a previous chapter.
Update: it seems that in that particular chapter is ok to use "rhel7" image instead. The rhel-7 web image is created two chapters later and serves other purposes.
I hope this help anyone wondering about that.
