example

ansible.cfg

[defaults]
roles_path = /some/path/project-config/roles:/some/path/zuul-jobs/roles

zuul-jobs_playbooks_base-integration.yaml

- include: "{{ zuul.executor.src_dir }}/git.openstack.org/project-config/playbooks/base/pre.yaml"
- include: "{{ zuul.executor.src_dir }}/git.openstack.org/project-config/playbooks/base/post-logs.yaml"
- include: "{{ zuul.executor.src_dir }}/git.openstack.org/project-config/playbooks/base/post-ssh.yaml"

zuul-jobs_zuul.yaml

[...]
- job:
    name: base-integration-centos-7
    parent: null
    description: |
      Tests the base playbooks
    nodes:
      - name: centos-7
        label: centos-7
    required-projects:
      - openstack-infra/project-config
    run: playbooks/base-integration.yaml