[JP_Watts]

cloud-init looks great, I'll try it for new bare metal installs. How do you get it to work in Docker containers?

[thrw42A8N]

You don't use cloudinit with Docker containers. You'd use cloudinit to set up the Docker/K8s host on EC2 or similar IaaS.

Software for Docker containers is built like this: https://12factor.net/