Migrating from CronJobSource to the PingSource

In 0.13, the deprecated CronJobSource should be converted to the PingSource.

The YAML file for a CronJobSource that emits events to a Knative Serving service will look similar to this:

apiVersion: sources.knative.dev/v1alpha1
kind: CronJobSource
metadata:
  name: cronjob-source
spec:
  schedule: "* * * * *"
  data: '{"message": "Hello world!"}'
  sink:
    apiVersion: serving.knative.dev/v1
    kind: Service
    name: event-display

To migrate this source to a PingSource, the following steps are required::

  • Different apiVersion and kind between the two
  • PingSource uses the jsonData attribute instead of the data attribute.

The updated YAML for PingSource will look similar to the following:

apiVersion: sources.knative.dev/v1alpha2
kind: PingSource
metadata:
  name: ping-source
spec:
  schedule: "* * * * *"
  jsonData: '{"message": "Hello world!"}'
  sink:
    ref:
      apiVersion: serving.knative.dev/v1
      kind: Service
      name: event-display