service-ansible/roles/update/tasks/main.yaml

---
- name: Update service
  command: docker-compose pull
  args:
    chdir: /home/service-user

- name: Shut down service
  command: docker-compose down
  args:
    chdir: /home/service-user

- name: Start service
  command: docker-compose up -d
  args:
    chdir: /home/service-user
...