Vertx cluster on Docker/Swarm

[gadieichhorn]

Setting Vertx application to interact as a cluster with docker containers were each application is running as docker microservice.

1. docker compose
2. cluster manager
3. overcome multicast issues with Docker
4. best practice for microservices (Circuit Breaker)

[jponge]

Items 1-3 fit together, while 4 is another topic.