API Evolution with CRDs: Best Practices for Authoring and Fuzz Testing APIs

Explore best practices for authoring and fuzz testing APIs in Kubernetes using CustomResourceDefinitions (CRDs) in this 30-minute conference talk by James Munnelly and Andrea Tosatto from Apple. Learn strategies and tooling to ensure successful API design and evolution, including following best practices, linting OpenAPI schemas, fuzz and integration testing API version conversion functions, validating OpenAPI schemas, writing validations and mutations, and ensuring backwards compatibility. Gain insights from experienced Kubernetes engineers on handling unique problems in large-scale and mature projects, and discover how to navigate the full alpha to beta to GA deprecation cycle for CRDs.