The network that is overlay produces a distributed community among multiple Docker daemon hosts.
This community sits together with (overlays) the host-specific sites, permitting containers attached to it (including swarm service containers) to communicate firmly. Docker transparently handles routing of every packet to and through the proper Docker daemon host therefore the destination container that is correct.
Whenever you initialize a swarm or join a Docker host to a current swarm, two brand new sites are made on that Docker host:
- an overlay network called ingress , which handles control and information traffic linked to swarm solutions.Read More »