The previous code had attempted to handle the case where the container
isn't running and we exec a zuul graceful stop in the container.
Unfortunately I got the string to check for wrong. I think I must've
checked the `docker exec` output and not the `docker-compose exec`
output.
This change updates the string to match exactly what ansible complained
about:
TASK [zuul-merger : Gracefully stop Zuul Merger] *******************************
fatal: [zm05.opendev.org]: FAILED! => {
"changed": true,
"cmd": "docker-compose exec merger zuul-merger stop",
"delta": "0:00:00.573561",
"end": "2022-09-14 01:59:41.721044",
"failed_when_result": true,
"rc": 1,
"start": "2022-09-14 01:59:41.147483"
}
STDERR:
No container found for merger_1
MSG:
non-zero return code
Specifically we check for 'No container found' in stderr.
Change-Id: I737b9da14c210215926804816d1e032540d694dc
183e186fe0