crossplane-composition-efs

efs-composition.yaml

---
apiVersion: apiextensions.crossplane.io/v1
kind: Composition
metadata:
  name: example-efs
spec:
  writeConnectionSecretsToNamespace: crossplane-system
  compositeTypeRef:
    apiVersion: platform.example.intern/v1alpha1
    kind: Efs
  patchSets:
    - name: Common
      patches:
        - fromFieldPath: metadata.name
          toFieldPath: metadata.name
    - name: AwsParameters
      patches:
        - fromFieldPath: spec.region
          toFieldPath: spec.forProvider.region
    - name: fileSystemIDStatus
      patches:
        # track the autogenerated fileSystemID as we need this later
        - type: ToCompositeFieldPath
          fromFieldPath: status.atProvider.fileSystemID
          toFieldPath: status.filesystem.fileSystemID
          policy:
            fromFieldPath: Optional
    - name: MounttargetParameters
      patches:
          # inject the fileSystemId
        - type: FromCompositeFieldPath
          fromFieldPath: status.filesystem.fileSystemID
          toFieldPath:  spec.forProvider.fileSystemID
          policy:
            fromFieldPath: Required
    - name: StorageClassParameters
      patches:
          # inject the fileSystemId
        - type: FromCompositeFieldPath
          fromFieldPath: status.filesystem.fileSystemID
          toFieldPath:  spec.forProvider.manifest.parameters.fileSystemId
          policy:
            fromFieldPath: Required
  resources:
    - name: efs-filesystem
      base:
        apiVersion: efs.aws.crossplane.io/v1alpha1
        kind: FileSystem
        spec:
          forProvider:
            region: # patched
          providerConfigRef:
            name: default
      patches:
        - patchSetName: AwsParameters
          type: PatchSet
        - patchSetName: Common
          type: PatchSet
        - patchSetName: fileSystemIDStatus
          type: PatchSet

    - name: efs-mounttarget
      base:
        apiVersion: efs.aws.crossplane.io/v1alpha1
        kind: MountTarget
        spec:
          forProvider:
            region: # patched
            fileSystemID: # patched
            subnetIDRef:
              name: sample-subnet1
            securityGroupsRefs:
              - name: example
          providerConfigRef:
            name: default
      patches:
        - patchSetName: Common
          type: PatchSet
        - patchSetName: AwsParameters
          type: PatchSet
        - patchSetName: MounttargetParameters
          type: PatchSet

    - name: storage-class
      base:
        apiVersion: kubernetes.crossplane.io/v1alpha1
        kind: Object
        spec:
          forProvider:
            manifest:
              kind: StorageClass
              apiVersion: storage.k8s.io/v1
              provisioner: efs.csi.aws.com
              parameters:
                provisioningMode: efs-ap
                fileSystemId: "" # patched
                directoryPerms: "700"
                gidRangeStart: "1000" 
                gidRangeEnd: "2000" 
                basePath: "/dynamic_provisioning" 
          providerConfigRef:
            name: kubernetes-provider
      patches:
        - patchSetName: Common
          type: PatchSet
        - patchSetName: StorageClassParameters
          type: PatchSet

efs-xrc.yaml

---
apiVersion: platform.example.intern/v1alpha1
kind: Efs
metadata:
  name: efs-test
  namespace: api-service
spec:
  region: eu-central-1

efs-xrd.yaml

---
apiVersion: apiextensions.crossplane.io/v1
kind: CompositeResourceDefinition
metadata:
  name: efs.platform.example.intern
spec:
  defaultCompositionRef:
    name: example-efs
  group: platform.example.intern
  names:
    kind: Efs
    listKind: EfsList
    plural: efs
    singular: efs
  versions:
    - name: v1alpha1
      served: true
      referenceable: true
      schema:
        openAPIV3Schema:
          description: Efs
          type: object
          properties:
            spec:
              type: object
              properties:
                region:
                  type: string
                  description: AWS Region
              required:
                - region
            status:
              description: >
                A Status represents the observed state of this installation.
              type: object
              properties:
                filesystem:
                  description: >
                    Freeform field containing information about the efs filesystem
                    configured by this Controller.
                  type: object
                  x-kubernetes-preserve-unknown-fields: true

output.txt

kubectl describe -f efs-driver-xrc.yaml
Name:         efs-test
Namespace:    
Labels:       crossplane.io/composite=efs-test
Annotations:  <none>
API Version:  platform.example.intern/v1alpha1
Kind:         Efs
Spec:
  Composition Ref:
    Name:  example-efs
  Region:  eu-central-1
  Resource Refs:
    API Version:  efs.aws.crossplane.io/v1alpha1
    Kind:         FileSystem
    Name:         efs-test
    API Version:  efs.aws.crossplane.io/v1alpha1
    Kind:         MountTarget
    Name:         efs-test
    API Version:  kubernetes.crossplane.io/v1alpha1
    Kind:         Object
    Name:         efs-test
Status:
  Filesystem:
    File System ID:  fs-fba21fa0
    
---
kubectl get StorageClass efs-test -o yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: efs-test
parameters:
  basePath: /dynamic_provisioning
  directoryPerms: "700"
  fileSystemId: fs-fba21fa0 # <-- patched automatically from status
  gidRangeEnd: "2000"
  gidRangeStart: "1000"
  provisioningMode: efs-ap
provisioner: efs.csi.aws.com
reclaimPolicy: Delete
volumeBindingMode: Immediate