Example Control Plane Function

Example function showcasing how you can use Crossplane Composition Functions to orchestrate your IDP's Control Plane

Needed Tools:

• Crossplane CLI
• IDPBuilder
• GoLang
• Kubernetes CLI
• Docker

To Test and Build Locally

# Run code generation - see input/generate.go
$ go generate ./...

# Run tests - see fn_test.go
$ go test ./...

# Build the function's runtime image - see Dockerfile
$ docker build . --tag=runtime

# Build a function package - see package/crossplane.yaml
$ crossplane xpkg build -f package --embed-runtime-image=runtime

To Test the output of the function based on a given Composite Resource

crossplane beta render ./example/xr.yaml ./example/composition.yaml ./example/functions.yaml

To Spin up your local IDP control plane pointing to a localstack instance.

idpbuilder create -p ./local/localstack

To apply a claim to validate the behavior of your Composition Function locally

kubectl apply -f example/claims/s3bucket.yaml