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docs/guides/concept-guide/components/k3s.md

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-# K3S
+# K3s
+
+[K3s](https://k3s.io/) is a lightweight Kubernetes distribution designed for resource-constrained environments and edge computing. It is fully compliant with upstream Kubernetes, while offering significant simplifications to reduce operational overhead.
+
+In OSISM contexts, K3s can serve as an alternative to full Kubernetes distributions like Kubernetes with Magnum or RKE2. Its minimal footprint makes it particularly suitable for testing, CI/CD runners, edge clusters, and bootstrapping control-plane components for infrastructure management.
+
+## K3s main features
+
+- **Simple installation:** A small single binary with minimal setup. Swap out the binary, restart - no orchestration complexity.
+- **Reduced attack surface:** By stripping non-essential plugins and embedding TLS certificate management by default, K3s minimizes exposed vectors
+- **Less overhead**: Fewer components reduce complexity and operational friction in CI/CD pipelines and maintenance workflows.
+- **Built-in components:** Includes core add-ons like Helm controller, containerd, Traefik (optional), and local storage provisioner.
+- **Optimized for Edge:** Designed for low-resource environments and supports ARM, x86_64, and other CPU architectures.
+
+K3s shines not because it's tiny, but because it breaks down Kubernetes complexity.With K3s you can support **edge or remote clusters** where full Kubernetes is not practical, uniform Kubernetes experience across environments, and scale from dev to prod smoothly.
 
 ## Lifecycle Management of K3S in OSISM