Our great sponsors
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devspace-plugin-loft
Loft Plugin for DevSpace - adds commands like `devspace create space` or `devspace create vcluster` to DevSpace
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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Virtual clusters are just a concept on the surface, and there are potentially many ways to implement them. The team at Loft Labs has designed an open source command-line tool called vcluster. You can use vcluster to create a namespace in your host cluster, and then a virtual cluster in that namespace. From here, you use the vcluster tool to get access, and now you are working in a virtual cluster. Under the hood, vcluster uses k3s to manage the virtual clusters, ensuring that it's fast and reliable. Multi-tenancy is usually troublesome to set up, but vcluster makes setting up a virtual cluster as easy as possible.
As your organization grows and Kubernetes becomes more integrated into your daily workflow, more complex needs will arise. You probably started with a single cluster for everything, but now you see a need for multiple clusters. Perhaps you need a separate one for testing, one for specific workloads, or something else entirely.
Another big issue with hard multi-tenancy is permissions. Not the kind of permissions we've already talked about, but the ones your tenants want to implement. Most Kubernetes clusters use RBAC as a way of controlling permissions. But because you sometimes need to be an admin of the entire cluster to configure these, tenants will run into trouble with something like installing Helm charts.