This issue track the ability to add new env variables to configure SSL in SSO support for the 7.3.x-legacy jboss-eap-modules: https://github.com/jboss-container-images/jboss-eap-modules/tree/7.3.x-legacy
The features added to this branch are not included in the EAP 7.3.x and XP 1.x images. They are to be used by layered products to build their own images.