zuul/tests/fixtures/layouts/supercedent-promote.yaml

- pipeline:
    name: promote
    manager: supercedent
    trigger:
      gerrit:
        - event: change-merged

- job:
    name: base
    parent: null
    run: playbooks/base.yaml

- job:
    name: promote-job

- project:
    name: org/project
    promote:
      jobs:
        - promote-job