EAP does not boot with example EC2 configuration file

Cc rhn-engineering-rhusar

When running one of the ER1 EAP AMI images provided by RCM in https://projects.engineering.redhat.com/browse/RCM-17943, the package eap7-jboss-ec2-eap is installed on the image. The package is installed locally, but it comes from the errata https://errata.devel.redhat.com/advisory/24279.

The problem is that the package contains an example EC2 configuration file, with which EAP does not boot. That is because of bad JGroups subsystem schema number (5.0 which is for ER2, not ER1 - that should be 4.1), but that is not relevant.

The actual problem is that EAP has its own example EC2 configuration file, which is different from the one from the eap7-jboss-ec2-eap package and is correct. The EAP example is under /docs/examples/configs in the EAP installation. I think we should remove all example configuration files from the eap7-jboss-ec2-eap RPM and should maintain them in the EAP installation, so they aren't duplicated.

However, the eap7-jboss-ec2-eap contains an example configuration file for mod_cluster EC2 configuration (attached), which the EAP examples directory does not have. That's the reason I'm cc-ing rhn-engineering-rhusar. Do you think it makes sense to check the mod_cluster example and add it to EAP docs/examples/configs/ ?