Hi !

While trying to port a multi-container application meant to be used with docker-compose to Guix oci-container-service-type, I noticed that docker-compose creates a single network for all its containers (by default). Using oci-container-service-type, we can specify a network for each container but the network needs to exist beforehand, otherwise the service fails.

So I was wondering if this is something we would want in Guix, the ability to create a network for a list of containers.

Personally, I ended up adding another shepherd service to create the network before the containers were created.

If it is something of interest, I'm curious to hear about ideas to implement this. Adding a field `create-network?' to `oci-container-service-type' would be a possibility but maybe it is not the right way to implement this.