services:
  safe:
    image: 'alpine'
    command: ['/bin/sh', '-c', 'sleep infinity'] # never exiting
  failure:
    image: 'alpine'
    command: ['/bin/sh', '-c', 'sleep 2 ; echo "exiting" ; exit 42']
  test:
    image: 'alpine'
    command: ['/bin/sh', '-c', 'sleep 99999 ; echo "tests are OK"'] # very long job
    depends_on: [safe]