Docker HA Deployment

Hi there

Is there documentation about deploying the stack in a HA environment using Docker ?
I found the Docker images about all stack services, but not sure about Redis and Postgree for example, to share it among all containers in cluster.

I think in this case I can’t use the official images and have to install separated services on cluster for Redis and Postgree and make all chirpstack components to talk with those services, right ?