Single-tenant Titus: VM-level isolation on a multi-tenant container platform

Samartha Chandrashekar & Nick Parker You click play on a Friday night, and in the second that follows, dozens of services answer in milliseconds. Most of them run on Titus, our internal container platform. Titus is, in essence, a Kubernetes-based container hosting platform: we keep both the control plane and the data plane (the container hosts that actually run containers) patched and up to date, so application teams get a consistent and reliable container experience. They hand us a container, and we run it, with no host, cluster, or kernel to own. Titus launches millions of containers every w

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