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Cluster sharing is common in almost all organizations using Kubernetes in domains like testing, dev, sales, etc., where different applications, teams, or even other departments run and operate in a shared environment. Multi-tenancy adds a layer of complexity to your system and comes with some restrictions for the tenants. Virtual clusters can be created in a self-service portal and get users onboarded in minutes. With vcluster users can create k3s-based virtual clusters that run inside a single. namespace on top of full-blown.