Tried to launch AMI and everything seems in working order (containers running). However, I have tried to establish DNS both from the namecheap side and from the AWS Route 53 side and can’t get a web page to render. The WebUI works and the ports I need are open.
For what it’s worth, in case anyone else requires, Portainer needs to have its port opened separately.
Will try again this weekend, to tear down and rebuild the setup. I had issues with certs not being established so will try without first.