Advanced networking

Networking is one of the most important things for Docker clusters and it needs to be kept operational and running smoothly on clusters for the whole system to operate in any capacity. With that in mind, it stands to reason that it behooves us to cover a few of the topics that we have not talked about yet but that are important in most real-world deployments, big and small. There is a big chance you will encounter at least one of these use cases in your own deployments so I would recommend a full read-through, but your mileage may vary.

Static host configuration

In some specific configurations, you may have a host on your network that needs to be mapped or re-mapped to a specific IP address for the container that is trying to reach it. This allows a flexible configuration of named servers and can be a real life-saver for static hosts on the network without a good network DNS server.

To add such a host mapping to a container, you can run the container with docker run --add...