8OVERLAY NETWORKS
Container networking is complex enough when all of the containers are on a single host, as we saw in Chapter 4. When we scale up to a cluster of nodes, all of which run containers, the complexity increases substantially. Not only must we provide each container with its own virtual network devices and manage IP addresses, dynamically creating new network namespaces and devices when containers are created, but we also need to ensure that containers on one node can communicate with containers on all the other nodes.
In this chapter, we’ll describe how overlay networks are used to provide the appearance of a single container network ...
Get The Book of Kubernetes now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
