resources:
- name: mixer
  type: frontend.jinja
  properties:
    backend-ip: $(ref.workflow.ip)
- name: workflow
  type: backend.jinja
  properties:
    frontend-ip: $(ref.mixer.ip)
outputs:
- name: frontend-ip
  value: $(ref.mixer.ip)
- name: backend-ip
  value: $(ref.workflow.ip)