ansible-nginx-supervisor/deployment/email_server.yaml

---
- hosts: all
  vars:
      web_server_home: /srv/www
      email_server_venv: "{{ web_server_home }}/mail_server"
  tasks:

    - name: PIP install mailsink test server into target virtualenv
      pip: name=mailsink virtualenv={{ email_server_venv }} version=0.0.2