Summary · Composing Hello Pico on Kubernetes

Key takeaways

  • Crossplane extends a Kubernetes control plane with the ability to author your own higher-level, composable APIs and have the cluster produce the concrete resources they imply.
  • The Crossplane primitives introduced in this lesson are Provider, XRD, Composition, Composite Resource (XR), and Managed Resource — all defined in the Glossary.
  • The Crossplane path maps cleanly onto the Pico pipeline: Rules ↔︎ XR, Parser ↔︎ XRD, Composer ↔︎ Composition, Pico artifact ↔︎ Managed Resources on the cluster.
  • The reference target environment for the follow-on runnable lab is local minikube — small enough for a laptop, full enough to host a real Kubernetes control plane.
  • The Crossplane Lab for this lesson is the reusable Hello Pico on Kubernetes lab. It installs Crossplane on a local minikube cluster, declares an XHelloWorldPico XRD and its Composition, and reconciles a single Composite Resource into a Kubernetes Job that prints Hello, Pico! — a full end-to-end runnable exercise of the Rules ↔︎ XR / Parser ↔︎ XRD / Composer ↔︎ Composition / Pico ↔︎ Managed Resources mapping.

What comes next

  • Part 2 — Composing Hello Pico will develop the Composition side of the story once Part 1 is fully in place. See Part 2.
  • Part 3 — Extending the composition will layer additional Managed Resources on top of the base composition. See Part 3.
  • The reusable Hello Pico on Kubernetes lab is now runnable end to end on local minikube. See the lab’s Objectives page for the exact tool version pins used to verify it.

Next

Take the Quiz.