We're in process of upgrading the EAP version of RHPAM Images to 7.4.0.
The base provided scripts [1] supports only Galleon installations.

The RHPAM images do not uses Galleon and we need to be able to install EAP 7.4.0 on the same way it was being done for 7.3.x [2];

[1] - https://github.com/jboss-container-images/jboss-eap-7-image/tree/eap74-dev/modules

[2] - https://github.com/jboss-container-images/jboss-eap-7-image/tree/eap73-dev/modules