Create the Kubernetes cluster with Crossplane installed and the AWS provider configured as described in the main README Pre-Requisites.
kubectl apply -f functions.yaml
Wait for the functions to become installed and healthy:
kubectl get pkg
Apply the functions based composition:
kubectl apply -f composition.yaml
Create a claim for this Network abstraction, that will kick off the
composition of resources using the KCL function:
kubectl apply -f claim-iteration.yaml
kubectl apply -f claim-conditional.yaml
Examine the resources that were created under the Network abstraction by the
compositions:
crossplane beta trace network.xp-layers.crossplane.io/network-iteration
crossplane beta trace network.xp-layers.crossplane.io/network-conditional
We see clearly the power of functions and enabling higher level languages (like
KCL) to perform more complicated logic, such as conditionals, iteration, flow
control, etc. In this example, network-iteration creates a variable number of
network resources on its own, and network-conditional conditionally skips the
creation of the InternetGateway resources. This type of logic in compositions
was not possible before functions.
Clean up all the created resources:
kubectl delete -f claim-iteration.yaml
kubectl delete -f claim-conditional.yaml
kubectl get managed