Rackspace Spot - On demand Kubernetes Clusters with Spot instances

Do you want to run your ephemeral workloads in Kubernetes without the overhead of managing the clusters? Rackspace Spot brings fully managed Kubernetes clusters. You choose your worker nodes and bid for the servers. Bid against the market price and you've got yourself a cluster for as long as you want in your bid range. Using spare capacity from Rackspace's data centers, we built Rackspace Spot - managed control plane for your ideas and experimentation and for your ephemeral production workloads. Some customers are also using it for persistent applications.

In this talk, learn about the architecture of Rackspace Spot and how you can take advantage of it to have access to a low-cost managed Kubernetes cluster, where all you need to worry about (literally and monetarily) is your worker nodes.

Transcript

1. CNCF Cloud Native, Chennai, January 2025 Rackspace Spot On demand Kubernetes Clusters with Spot instances https://spot.rackspace.com Indradhanush Gupta
2. $ whoami • Senior Engineer on the Platform team • Building Spot platform and infrastructure • Blog: https://igupta.in
3. Agenda • What is Rackspace Spot? • Architecture • Bidding overview • Control plane provisioning • Challenges • Q & A
4. Rackspace Spot • On demand Kubernetes clusters with Spot instances • Spot instances - spare capacity • Scale: 400 user clusters, 2000 servers • Unbeatable prices • Pay only for worker nodes
5. Availability Zones London Sydney Hong Kong San Jose Chicago Dallas Washington DC
6. Live Demo
7. Architecture
9. Bidding
10. Bidding
11. Bidding
12. Control plane provisioning
13. Control plane provisioning
15. Questions?
26. Recap
27. Challenges
28. • Scale challenges • Spot Control Plane reconciliation times • Jailbreaking • Fraud (GPU nodes are very attractive) Challenges
29. Questions?
30. Let’s stay in touch! • 🦋 @igupta.in on bsky.app • ✉ dhanush@platform9.com • Indradhanush Gupta on LinkedIn