How do I configure Vert.x event bus to work across cluster of Docker containers?

Question

In my current setup, I\'m using the default multicast option of the Hazelcast cluster manager. When I link the instances of my containerized Vertx modules (via Docker networ

Answer 1

found this solution that worked perfectly for me, below is my code snippet (important part is the options.setClusterHost()

public class Runner {

    public static void run(Class clazz) {
        VertxOptions options = new VertxOptions();
        try {
            // for docker binding
            String local = InetAddress.getLocalHost().getHostAddress();
            options.setClusterHost(local);
        } catch (UnknownHostException e) { }

        options.setClustered(true);

        Vertx.clusteredVertx(options, res -> {
            if (res.succeeded()) {
                res.result().deployVerticle(clazz.getName());
            } else {
                res.cause().printStackTrace();
            }
        });
    }
}

public class Publisher extends AbstractVerticle {

    public static void main(String[] args) {
        Runner.run(Publisher.class);
    }

    ...
}

no need to define anything else...