Composition Function examples for Crossplane Intro/Deep-dive

claim.yaml

apiVersion: database.example.org/v1alpha1
kind: AcmeCoDatabase
metadata:
  name: example-db
spec:
  parameters:
    storageGB: 20
  compositionRef:
    name: example

composition-patch-transform.yaml

apiVersion: apiextensions.crossplane.io/v1
  kind: Composition
  metadata:
    name: example
  spec:
    compositeTyepRef:
      apiVersion: database.example.org/v1alpha1
      kind: AcmeCoDatabase
    resources:
      - name: cloudsqlinstance
        base:
          apiVersion: database.gcp.crossplane.io/v1beta1
          kind: CloudSQLInstance
          spec:
            forProvider:
              databaseVersion: POSTGRES_9_6
              region: us-central1
              settings:
                tier: db-custom-1-3840
        patches:
        - type:
          fromFieldPath: spec.paramaters.storageGB
          toFieldPath: spec.forProvider.settings.dataDiskSizeMb
          transforms:
          -type: math
            math:
              multiply: 1024