loom-crossplane

# Crossplane Infrastructure Management Crossplane extends Kubernetes to manage cloud infrastructure using declarative APIs. It enables platform teams to build internal cloud platforms with self-service capabilities. ## Architecture Overview ### Core Components 1. **Providers**: Kubernetes controllers that provision infrastructure in external systems (AWS, GCP, Azure, etc.) 2. **Managed Resources (MRs)**: Custom resources representing external infrastructure (S3 buckets, RDS instances, etc.) 3. **Composite Resources (XRs)**: Higher-level abstractions composed of multiple managed resources 4. **Composite Resource Definitions (XRDs)**: Schemas defining composite resource types 5. **Compositions**: Templates that map XRs to managed resources with transformation logic 6. **Claims**: Namespace-scoped resources that provision composite resources for application teams 7. **Composition Functions**: Extension points for complex transformation logic ### Resource Hierarchy ```text Claim (namespace-scoped) -> Composite Resource (cluster-scoped) -> Managed Resources -> Cloud Infrastructure ``` ## Installation and Setup ### Install Crossplane ```bash # Add Crossplane Helm repository helm repo add crossplane-stable https://charts.crossplane.io/stable helm repo update # Install Crossplane # Composition functions are enabled by default since v1.14 — no feature-gate flag needed. helm install crossplane \ crossplane-stable/crossplane \ --namespace crossplane-system \ --create-nam...