Initialize the swarm
docker swarm init --listen-addr 184.108.40.206:3000 --advertise-addr 10.10.0.6
We need the –advertise-addr because there are two IP addresses assigned to the same interface.
Create a service
docker service create --name my-service --publish 3000:3000 my-image:1.0.0
Set the service to be hosted on two nodes
docker service update --replicas 2 my-service