A Service gives a group of pods one address that lasts as long as the Service, while the pods behind it come and go. The cluster is the Pod Network's. First a pod is replaced under a client that held its address. Then one Service, web, grows through its three types: ClusterIP: an address inside the cluster, for pods; …

Every node in a Kubernetes cluster has one address on the network the nodes share, and every pod an address of its own, from its node's range. The cluster is the Top View's. We follow a packet from pod to pod: on one node, then across two. Then a network policy filters it. Kubernetes sets the rules for this network, …

A working Kubernetes cluster: five computers, and a cluster admin running kubectl against them. A node is a computer. A pod is a group of one or more containers, running on one node. We look inside the nodes first, then run a pod, then a Deployment, then delete it. Reading the drawing Solid purple is the control plane; …