Extending on Laurent Bernaille’s excellent 3-part deep dive series on Docker’s overlay networks I wanted to experiment with how we could utilise Docker’s overlay network to tunnel traffic between the nodes in a Swarm outside of the container environment, essentially treating the Overlay network as a mesh

⚠️Important Note I don’t recommend running this setup in a production environment — it’s an interesting prototype, but gives no control over the bootstrap process (it essentially relies on brute-forcing a race condition on container startup) which can lead to unreliable and unpredictable behaviour. Several months ago I was