In gms, frontend and other env files how can we specify multiple hosts for elasticsearch, kafka etc... https://github.com/datahub-project/datahub/blob/master/docker/datahub-gms/env/docker-without-neo4j.env#L9

For production deployments we would suggest kubernetes deploymenets, there you have values.yaml files where you can specify multiple hosts. Elasticsearch is a special case i believe where you typically point to a load balancer and defer that responsability to the cluster.

But if we can specify multiple hosts with k8 deployment then same should work with docker compose as well.

I’ve never tried but I think so too.