The org.wildfly.cloud:wildfly-cloud-galleon-pack Galleon feature-pack provisions a set of additional features allowing you to configure a WildFly server to work on the cloud.
Its usage is not strictly required when provisioning a WildFly server for the cloud,
but as the detailed documentation describes,
it brings to the server some configuration aspects that are generally expected in a cloud context (e.g.: Openshift or Kubernetes).
This feature-pack can be used when building a server installation or packaging a WildFly Bootable JAR.
The org.wildfly.cloud:wildfly-cloud-preview-galleon-pack to be used with the org.wildfly:wildfly-preview-feature-pack
(that allows to provision Jakarta EE 11+ server) provisions the same set of additional features.
Detailed documentation of the WildFly cloud Galleon feature-pack.