Kubernetes networking

There are plenty of options when it comes to implementing networking in Kubernetes. Kubernetes itself doesn't care about how you implement it, but you must meet its three fundamental requirements:

• All containers should be accessible to each other without NAT, regardless of which nodes they are on
• All nodes should communicate with all containers
• The IP container should see itself in the same way as others see it

Before getting any further into this, we'll first examine how default container networking works.

Docker networking

Let's now review how docker networking works before getting into Kubernetes networking. For container networking, there are different modes: bridge, none, overlay...