[keycloak-user] How to secure web services (ejb modules) with keycloak

Hello! We have some applications without UI who expose web services. Actually, it's EJBs with the @Webservice annotation. Those EJBs are packaged into an EAR file as EJB modules for deployment. In other applications, we usually add the keycloak-saml.xml file into the war module but, since those applications do not have war module, how could we secure those web services with keycloak? Thanks, Christian