interactive-on-error: true
overrides:
roles:
- - test0
  - test1
- - test0
  - test1
- - test0
tasks:
- install:
- parallel_example:
  - test0
  - test1  

targets:
  ubuntu@<host1>: ssh-rsa <host1 key>
  ubuntu@<host2>: ssh-rsa <host2 key>
  ubuntu@<host3>: ssh-rsa <host3 key>