A Tale of Two Plugins - Safely Extending the Kubernetes Scheduler with WebAssembly

Explore a conference talk that delves into extending the Kubernetes scheduler using WebAssembly. Learn about the challenges faced with existing extension methods like webhooks and Golang SDK, and discover a new solution proposed to address these issues. Understand the need for custom schedulers and gain insights into the architectural advantages of WebAssembly for plugin development. Examine the technical surprises encountered during implementation, including sandbox limitations and programming concerns. By the end of this talk, gain first-hand knowledge of how a complex WebAssembly project operates and understand its potential for infrastructure extensibility in the context of Kubernetes scheduling.