Kubernetes Architecture - Explained for the last time! 1. Master Node (Control Plane) Components 🔹 API Server (kube-apiserver) - Central control unit, processes API requests, scalable, communicates with etcd. 🔹 Cloud Controller Manager - Integrates with cloud APIs, manages Node, Route, and Service controllers, supports independent feature releases. 🔹 etcd - Distributed key-value store, stores cluster state, configuration, and metadata, consistent, immutable. 🔹 Scheduler (kube-scheduler) - Decides pod placement based on resources, affinity rules, taints, tolerations. 🔹 Controller Manager - Manages core controllers, handles lifecycle events like garbage collection, monitors cluster state. 2. Worker Node Components 🔸 Kubelet - Manages containers on the node, ensures health, communicates with API server. 🔸 kube-proxy - Handles networking, routes traffic to pods, maintains service-to-pod IP translations. 🔸 Container Runtime Interface (CRI) - Manages container lifecycle, image pulls, supports runtimes like Docker, containerd. 🔸 Pods - Smallest deployable units, contain containers, share network and storage resources. This architecture ensures efficient, scalable, and reliable management of containerized applications. Illustration: Abdullateef #securityengineering #kubernetes #tech
