Is it possible to create roles and groups for the Entando WCMS in a bundle that I have created for the ECR? I know I can create roles for Keycloak to support authorization for my microservice but didn’t see groups and roles for the WCMS.
Not at the moment.
In regard of the WCMS domain, ECR only handles ContentTypes, ContentTemplates and Assets.
Note that the list in the message from @ffleandro is related to assets in the WCMS. Other components are supported (plugins, widgets, page templates, etc.) are supported and documented at:
https://dev.entando.org/next/tutorials/ecr/ecr-bundle-details.html