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This guide explains the purpose of Kubernetes Federation, its benefits for multi‑cluster management, step‑by‑step installation using Helm and kubefedctl, how to join and unjoin clusters, enable resource federation, and provides a cheat sheet of common commands for reliable cross‑cluster deployments.
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This article details the architectural background, challenges, and practical solutions implemented in SOFAStack CAFE for cloud‑native multi‑cluster deployment, including a custom multi‑topology CRD, an independent federation API server, enhanced KubeFed controller features, and network proxy integration to support hybrid‑cloud scenarios.