Publish a container image for CI/CD usage

[ryan-linehan]

This is a great resource for publishing a .NET game to web before Godot officially gets support. Would it be possible to publish the editor build and export templates as a Docker container image? This would allow use in CI/CD pipelines without spending 30+ minutes rebuilding from source each time.

Other users have done this like xr0gu3 and sonny-campbell (here godotengine/godot#106125 & godotengine/godot#106125 (comment)) have published their own Docker images, but they fall behind on versions since they're maintained separately. Automating this alongside the existing build workflow would keep the container in sync with each release since you're doing the work to keep it up to date here anyways.

I'm happy to submit a PR for this if you're open to it. Thanks!

[ComplexRobot]

I'm not very familiar with docker. What would be the point when the files only need to be compiled once and then saved anyway?

There is something here: https://github.com/renanrcp/godot-web-dotnet-building
This allows you to specify a git repo and branch, though it doesn't allow you to specify a tag or exact commit code.