OS Image

GCP

Latest GCP OS Image will be used (linux rh like)

AWS

The following AMI are selectable with these settings :

Variable	Default	Description
enable-al2023	yes	use newer AMI AL2023 (Amazon Linux 2023) otherwise use AWS2
enable-customami	no	dont use AWS AMI but a custom one (that should be RH like)
ssmamicustompath	notset	full SSM path to the AMI in the region

Note the following images were tested at some point :

Image	Status	Description
AWS1	Highly deprecated (please stop using this !)	legacy AWS AMI , rh6 like , no systemd or wlm !
RH/Centos 7	Deprecated	No longer supported , yum update is so slow.....
RH/Centos 8	Deprecated (*)	works fine but you need a version with os updates/support !
RH/Centos stream 9	ok but slightly tested	systemd support and cgroup logic for AL2023 should handle all cases but not all versions tested
AWS2	OK	Highly tested but you may want to migrate before support end, see https://aws.amazon.com/amazon-linux-2/faqs/
AL2023	OK	newer and latest, cgroup automatically downgraded to v1 at the moment