I am currently using the ghost:latest official docker container, but is a nightly one that can be published to use the latest, greatest, probably site breaking code base?
The Docker image is not officially supported by Ghost.
As far as I am aware, the Docker image always gets built a few days after a Ghost release (sometimes it takes a lot longer – right now, Ghost is on v5.101.6, whereas the Docker image is on v5.101.4).
You could, of course build your own automation to always build a Docker image based on new commits to Ghost’s main branch on Github (or once a day?).
I guess I was under the impression that https://hub.docker.com/_/ghost was supported by Ghost directly. I will look into automating the nightly updates via git instead then. Thanks for your reply.