The following warning started appearing in all of the clustering test EAP pod logs with EAP CD 15:

WARN  [org.jboss.as.ejb3.remote] (ClusterTopologyRegistrar - 1) WFLYEJB0509: Clustered EJBs in Node: hejbc-1-llmzm are bound to INADDR_ANY(0.0.0.0). Client cannot reach back the cluster when they are not in the same local network.

The warning was introduced in https://issues.jboss.org/browse/WFLY-11398 , and doesn't seem to be a regression (it is just the warning that is new, the "problem" is likely always there (binding to 0.0.0.0) . It needs to be investigated if the problem that the warning warns us about is valid for the image.