The dockerized version of `cardano-node` version `1.35.3` connects to the mainnet by default. We wish to connect the node to the new pre-production or preview testnets. It isn't made clear in any documentation how to accomplish this.

For reference, I'm referring to this image: <https://hub.docker.com/r/inputoutput/cardano-node>

This is related to [What are the valid NETWORK values for docker node images?](https://cardano.stackexchange.com/questions/8937/what-are-the-valid-network-values-for-docker-node-images)