all:
  children:
    SiteA:
      hosts:
        192.168.0.61:
          ansible_user: ansible
          ansible_python_interpreter: /usr/bin/python3.6
    SiteB:
      hosts:
        192.168.0.62:
          ansible_user: ansible
          ansible_python_interpreter: /usr/bin/python3.6
    proxy:
      hosts:
        192.168.0.63:
          ansible_user: ansible
          ansible_python_interpreter: /usr/bin/python3.6