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Upgrading to v0.14

Upgrading to v0.14

Crossplane made a small handful of breaking changes in v0.14. The most broadly impactful change was updating the CompositeResourceDefinition (XRD) schema to support defining multiple versions of a composite resource (XR) at once. This guide covers how to upgrade from v0.13 of Crossplane to v0.14.

• Updating CompositeResourceDefinitions
• Updating Packages

Updating CompositeResourceDefinitions

In v0.14 the schema of XRD was updated to support defining multiple versions of an XR. This update requires manual update steps. To upgrade from v0.13 to v0.14 you must:

1. Ensure you have up-to-date YAML representations of all of your XRDs.
2. helm upgrade your Crossplane release.
3. Update and apply all of your XRDs.

Note that Crossplane will not actively reconcile your XRs between steps 2 and 3, and you will see some errors in the events and logs, but your managed resources (and thus infrastructure) will continue to run. Follow the below steps in order to update your XRDs for v0.14:

1. Rename spec.crdSpecTemplate to spec.versions.
2. Move spec.versions.group to spec.group.
3. Move spec.versions.names to spec.names.
4. Rename spec.versions.version to spec.versions.name
5. Rename spec.versions.validation (if set) to spec.versions.schema.
6. Rename spec.versions.additionalPrinterColumns[].JSONPath (if set) to spec.versions.additionalPrinterColumns[].jsonPath.
7. Set spec.versions.served to true.
8. Set spec.versions.referenceable to true.
9. Make spec.versions a single element array.

For example, the below XRD:

apiVersion: apiextensions.crossplane.io/v1alpha1
kind: CompositeResourceDefinition
metadata:
  name: xpostgresqlinstances.database.example.org
spec:
  claimNames:
    kind: PostgreSQLInstance
    plural: postgresqlinstances
  connectionSecretKeys:
    - username
    - password
    - endpoint
    - port
  crdSpecTemplate:
    group: database.example.org
    version: v1alpha1
    names:
      kind: XPostgreSQLInstance
      plural: xpostgresqlinstances
    validation:
      openAPIV3Schema:
        type: object
        properties:
          spec:
            type: object
            properties:
              parameters:
                type: object
                properties:
                  storageGB:
                    type: integer
                required:
                  - storageGB
            required:
              - parameters

Would become:

apiVersion: apiextensions.crossplane.io/v1alpha1
kind: CompositeResourceDefinition
metadata:
  name: xpostgresqlinstances.database.example.org
spec:
  group: database.example.org
  names:
    kind: XPostgreSQLInstance
    plural: xpostgresqlinstances
  claimNames:
    kind: PostgreSQLInstance
    plural: postgresqlinstances
  connectionSecretKeys:
    - username
    - password
    - endpoint
    - port
  versions:
  - name: v1alpha1
    served: true
    referenceable: true
    schema:
      openAPIV3Schema:
        type: object
        properties:
          spec:
            type: object
            properties:
              parameters:
                type: object
                properties:
                  storageGB:
                    type: integer
                required:
                  - storageGB
            required:
              - parameters

Updating Packages

A minor breaking change was made to on-disk package types (meta.pkg.crossplane.io). In v0.13, the spec.crossplane field was present to specify a compatible Crossplane version range, but it was not honored by the package manager when packages were installed. The field was refactored to spec.crossplane.version meaning that packages that previously specified spec.crossplane will fail to parse when building with the Crossplane CLI or installing into a Crossplane Kubernetes cluster. If spec.crossplane was not specified, packages compatible with Crossplane v0.13 will continue to be compatible in v0.14. This is true for both Provider and Configuration packages.

The following example shows how a Configuration package that specified spec.crossplane can be updated to specify Crossplane version constraints that will be honored by the package manager in v0.14:

apiVersion: meta.pkg.crossplane.io/v1alpha1
kind: Configuration
metadata:
  name: my-configuration
spec:
  crossplane: ">=v0.13.0"

Would become:

apiVersion: meta.pkg.crossplane.io/v1alpha1
kind: Configuration
metadata:
  name: my-configuration
spec:
  crossplane:
    version: ">=v0.13.0"

Please note that while spec.dependsOn is also a valid field in on-disk package types, it is not yet honored by the package manager and will be ignored at installation time.