Is it possible to install Amazon SSM Agent on OPNsense? I'd buy a support contract for the AMI for that feature. Currently my firewall is the only instance in my VPC that I can't access via Session Manager and will need a jump host.
I see the software has been ported to BSD, but I get a lot of warnings trying to scare we away when I go to install it on pfSense. I can't say I'm versed enough in BSD to want to chance it.
https://pkgs.org/download/amazon-ssm-agent
https://www.freshports.org/sysutils/amazon-ssm-agent