apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  # name must match the spec fields below, and be in the form: <plural>.<group>
  name: crontabs.example.com
spec:
  # group name to use for REST API: /apis/<group>/<version>
  group: example.com
  # list of versions supported by this CustomResourceDefinition
  versions:
  - name: v1beta1
    # Each version can be enabled/disabled by Served flag.
    served: true
    # One and only one version must be marked as the storage version.
    storage: true
    # A schema is required
    schema:
      openAPIV3Schema:
        type: object
        properties:
          host:
            type: string
          port:
            type: string
  - name: v1
    served: true
    storage: false
    schema:
      openAPIV3Schema:
        type: object
        properties:
          host:
            type: string
          port:
            type: string
  # The conversion section is introduced in Kubernetes 1.13+ with a default value of
  # None conversion (strategy sub-field set to None).
  conversion:
    # None conversion assumes the same schema for all versions and only sets the apiVersion
    # field of custom resources to the proper value
    strategy: None
  # either Namespaced or Cluster
  scope: Namespaced
  names:
    # plural name to be used in the URL: /apis/<group>/<version>/<plural>
    plural: crontabs
    # singular name to be used as an alias on the CLI and for display
    singular: crontab
    # kind is normally the CamelCased singular type. Your resource manifests use this.
    kind: CronTab
    # shortNames allow shorter string to match your resource on the CLI
    shortNames:
    - ct

