Overview
Kubernetes, often abbreviated as K8s, is a production-grade open-source system for automating deployment, scaling, and management of containerized applications. Originally developed by Google and now maintained by the Cloud Native Computing Foundation (CNCF), it has become the definitive operating system for the cloud. Its architecture is built around a declarative model, where users define the desired state of their infrastructure, and Kubernetes' control plane works continuously to maintain that state. By 2026, Kubernetes has evolved to support heterogeneous workloads, including seamless integration of AI/ML GPU partitioning and sovereign cloud requirements. Its core components—the API server, etcd, scheduler, and controller manager—facilitate a highly resilient environment capable of self-healing, horizontal scaling, and zero-downtime rollouts. As organizations shift toward platform engineering, Kubernetes serves as the foundational layer for internal developer platforms (IDPs), enabling granular resource allocation and multi-tenant isolation across hybrid and multi-cloud environments.