Add Dockerfile and Compose

[marcosrosse]

Hello 👋🏿

This PR is to add a Dockerfile to use with rqbit. I'm currently using it in a Raspberry pi 4 and in laptop.

Things that need to improve is:

• Change the DTH and the session path for persistence.
• Change the Docker registry repository used for this image.
• Build an image for each OS architecture.

[ikatson]

Hi @marcosrosse, thanks for your contribution.

There are a few things that make me uncomfortable merging this.

1. I can't reference a docker image "docker.io/marcosrossem/rqbit:latest", as it's not under my control.
2. I don't have docker and thus can't support this going forward.

However I would be fine merging it if the PR would make Github Actions build and publish the docker image automatically to docker.io. For you to test this, I imagine you'd need to fork the repo, set up a Github Action that publishes to docker.io

That's it for the first review round. Alternatively, you can create a repo like rqbit-docker or smth like that and publish the docker support there.

[infowolfe]

@ikatson @marcosrosse the default with github actions is to use ghcr.io (github packages), which would allow control to stay with the repo.

[ikatson]

Added docker builds to main CI. Not yet multiarch, but will do that too later