Reference

Reference documentation for kro's APIs and specifications.

CRDs

Custom Resource Definitions (CRDs) that extend Kubernetes with kro's functionality.

• ResourceGraphDefinition - The core API for defining custom Kubernetes resources that orchestrate multiple underlying resources. Define your resource schemas, specify resource dependencies, and create reusable infrastructure patterns.
• Graph - A namespaced set of resources composed with CEL expressions and reconciled directly, without generating a new API. Alpha, behind the GraphKind feature gate.
• GraphRevision - An immutable snapshot of a ResourceGraphDefinition spec, used internally by kro to track revisions and enable safe rollouts.

Specifications

Schema and language specifications used when authoring kro resources.

• SimpleSchema - A concise schema definition language for defining resource structures in ResourceGraphDefinitions without writing verbose OpenAPI schemas.