In the AWS console for EC2 ImageBuilder the option to create a Container Recipe using RHEL as the base image seems to be disabled.
From EC2 Image Builder console -> Container Recipes -> Create container recipe. The 'Base Image' section for 'Image Operating System' allows Amazon Linux, Windows, Ubuntu and CentOS to be selected. Also listed are 'Red Hat Enterprise Linux (RHEL)' and 'SUSE Linux Enterprise Server (SLES)', but both of these are disabled.
I want to use RHEL as the base for my container. Is there something I need to do in my AWS account to make these operating systems selectable?
The console itself says that RHEL is supported, and I can't locate any documentation to say otherwise.