CNI (Container Network Interface)

The Container Network Interface (CNI) is a set of specifications and libraries that allow different container systems, like Docker and Kubernetes, to manage network connections for containers. Think of containers as lightweight virtual environments running applications. CNI provides the rules and tools to ensure these containers can communicate with each other and with external networks. This includes assigning IP addresses and managing network traffic, helping ensure that applications run smoothly and efficiently across various systems. Essentially, CNI helps create a cohesive networking environment in a world increasingly reliant on container technology.