Kubernetes, explained — interactive walkthroughs
by KubesimplifySubscribe on YouTube
Interactive Kubernetes, explained<br>What actually happens<br>inside Kubernetes.<br>Four guided animations that unpack the Kubernetes control plane — from a single kubectl run to the packets moving through an ingress controller. Play, pause, dive deeper.
23 steps · ~7 min
From command to running pod<br>kubectl run nginx<br>Every step kubectl, API server, etcd, scheduler, kubelet, and containerd take to get a pod from request to Running.<br>Start scenario
12 steps · ~4 min
Filter → Score → Bind<br>The scheduler, inside out<br>How kube-scheduler picks a node: informer queues, filter plugins, score plugins, and the final bind.<br>Start scenario
10 steps · ~6 min
Selector → EndpointSlice → kernel<br>How a Service finds your Pods<br>Three controllers cooperate to turn a label selector into a working ClusterIP. Verified against kubernetes/kubernetes 1.36 source.<br>Start scenario
7 steps · ~5 min
How Services scale to thousands of pods<br>Inside an EndpointSlice<br>Why the legacy Endpoints API died, what is in a slice, the three conditions that decide who gets traffic, and how topology hints route zone-aware. Verified against kubernetes/kubernetes 1.36 and CoreDNS 1.11 source.<br>Start scenario
7 steps · ~5 min
iptables · IPVS · nftables<br>kube-proxy modes, inside out<br>How kube-proxy turns virtual-IP Services and EndpointSlices into node-level packet-processing rules. Three modes, three packet paths, three scale curves. Verified against kubernetes/kubernetes 1.36 source.<br>Start scenario
10 steps · ~4 min
Internet → DNS → LB → pod<br>A request through ingress<br>Follow an HTTP request from a browser to the container — through DNS, load balancer, ingress controller, service, iptables, veth, and finally your pod.<br>Start scenario
Explorable map
Every component, every link<br>Anatomy of a cluster<br>An interactive map of a Kubernetes cluster. Hover any component to learn what it does, who it talks to, and where it lives.<br>Start scenario
Watch the video walkthroughsKeyboard: ← → step · space play · 1-9 jump