zuul-jobs/roles/emit-job-header/tasks/main.yaml

# We don't want this to run for every host, it should only run once.
- run_once: yes
  block:
    - name: Setup log path fact
      include_role:
        name: set-zuul-log-path-fact

    - name: Print job information
      debug:
        msg: |
          # Job Information
          Ansible Version: {{ ansible_version['full'] }}
          Job: {{ zuul.job }}
          Pipeline: {{ zuul.pipeline }}
          Executor: {{ zuul.executor.hostname }}
          {% if zuul.change_url is defined %}
          Triggered by: {{ zuul.change_url }}
          {% endif %}
          {% if zuul_log_url is defined and zuul_log_path is defined %}
          Log URL (when completed): {{ zuul_log_url }}/{{ zuul_log_path }}
          {% endif %}