Thank you!

We use the standard Docker volumes [1] for persisting data. It’s pretty straightforward – you just define a volume and specify where to mount it:

    volumes:
      app-data: {}

    services:
      app:
        image: example.com/app/backend:latest
        volumes:
          - app-data:/data

This should work pretty well for most use cases. (There are some caveats if you decide to run multiple Lunni servers in a cluster – basically, every node would get its own volume by default – which is the main reason we don’t officially support that yet :-)

[1]: https://docs.docker.com/engine/storage/volumes/