This episode explores Admission Controllers and Webhooks with Gordon Myers, who shares his experience implementing webhook solutions in production. Gordon explains the lifecycle of Kubernetes API requests and how webhooks can intercept and modify resources before they are stored in etcd.
You will learn:
How the Kubernetes API processes requests through authentication, authorization, and Admission Controllers.
The difference between Validating and Mutating webhooks and how to implement them using JSON Patch.
Best practices for testing webhooks and avoiding common pitfalls that can break cluster deployments.
Real-world examples of webhook implementations, including injecting secrets from HashiCorp Vault into containers.
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