building / publishing generic Docker images

Is your feature request related to a problem? Please describe. This seems a convention with a few Fediverse apps, but I'm noticing the Docker instructions include setting up environment variables and then having the user build their own container images rather than pulling generic images and externalizing environment. This could really boost participation and hosting of more instances!

Describe the solution you'd like

• Publish regular tagged container images as part of build process to Docker Hub.
• Amend documentation to avoid end users having to build, and instead shift toward consuming these images (I think I can help figure out this part).

Describe alternatives you've considered I could follow the Docker deployment instructions as-provided, but it would be super weird in my setup. Also the way these are (not) provided now means it can't be deployed to K8s without extra work.

Additional context Not sure how much I can help with sorting out a generically consumable image build (I'd like to help). But I am pretty sure I can help out with consumption doc.