Scaleable CockroachDB Docker Compose Deployment

docker-compose.yml explanation

crdb-0

• first node
• necessary to have a stable hostname for the other nodes to join
• do not scale this service

crdb

• scalable service to extend the first node

lb

• haproxy to load-balance between all nodes
• single entrypoint into the cluster
• aware of scaling using docker-compose
• new nodes will be automatically added to the rotation

crdb-init

• creates a test database
• may fail a couple of times, until the cluster is running