Define Watches in Helm-based operators

The Watches file contains a list of mappings from custom resources, identified by it’s Group, Version, and Kind, to a Helm chart. The Operator expects this mapping file in a predefined location: /opt/helm/watches.yaml

The follow tables describes the fields in an entry in watches.yaml:

For reference, here is an example of a simple watches.yaml file:

# Use the 'create api' subcommand to add watches to this file.
- group: foo.example.com
  version: v1alpha1
  kind: Foo
  chart: helm-charts/foo
  overrideValues:
    image.repository: quay.io/mycustomrepo
  watchDependentResources: false
  selector:
    matchExpressions:
     - {key: testLabel, operator: Exists, values: []}