apiVersion: messaging.knative.dev/v1
kind: Subscription
metadata:
name: <subscription_name>
namespace: <subscription_namespace>
spec:
delivery:
deadLetterSink: (1)
ref:
apiVersion: serving.knative.dev/v1
kind: Service
name: <sink_name>
backoffDelay: <duration> (2)
backoffPolicy: <policy_type> (3)
retry: <integer> (4)