Cluster

[rpelisse]

@kahlai Same as my previous PR: I tested within a podman container and mostly ensure that Ansible did run without errors and that the wildfly service is running. You may need to adapt for this to work on EC2.

In a nutshell, you can remove the jcliff_extra and the 3 CLI templates. Socket and modcluster are now supported by JCliff and the configuration of the TCP_PING can be handled by providing a base configuration with a variable for the initial hosts (see second commits for this part).

If you prefer to have the jgroups configuration done by JCliff, you can still do it by providing a custom rule, using the appropriate of attribute, of the jcliff: module. But given the amount of configuration to define the TCPPING jgroup's stack, it seems better to me to simply provide a modified standalone.xml.