OSS + ELC EU 2026

Declarative infrastructure promises reproducibility: desired state is defined, controllers reconcile drift, and redeployments should behave predictably.

Except they often don’t.

This talk explores the hidden operational state declarative systems quietly depend on: webhook certificates cached in cluster resources, infrastructure dependencies that survive deletion, controller ordering assumptions, persistent node state, and lifecycle coupling reconciliation engines cannot see.

These problems become especially visible when infrastructure spans multiple systems or workloads take minutes rather than seconds to initialize.

Using real operational examples from Kubernetes and GitOps environments, this lightning talk examines why “delete and redeploy” frequently fails to produce clean state and why many reliability problems are actually hidden state-management problems.

The core lesson: declarative systems still depend on operational history, even when the infrastructure appears fully declarative.