@Marvin is it possible to have deployment executions trigger other deployment executions?

Yes, it is possible to have deployment executions trigger other deployment executions in Prefect using deployment triggers. This allows for the configuration of event-driven deployments that can run based on the presence or absence of events. Here is an example of automations in the

prefect.yaml

that trigger deployments:

yaml
deployments:
- name: my-deployment
  entrypoint: path/to/flow.py:decorated_fn
  work_pool:
    name: my-process-pool
  triggers:
    - enabled: true
      match:
        prefect.resource.id: my.external.resource
      expect:
        - external.resource.pinged
      parameters:
        param_1: "{{ event }}"

At deployment time, this creates a linked automation that is triggered by events matching your chosen grammar, which will then pass the event as a parameter to the deployment's flow run. You can find more information about automations in the Prefect documentation on automations.