Error not a TTY on docker exec in ansible
One of the ansible playbooks that I was refactoring recently had a multiple shell steps with docker exec in them.
After updating to the latest docker the playbook started to fail with the following errors:
fatal: [servername.network]: FAILED! => {"changed": true, "cmd": ["docker", "exec", "-it", "somecommand here to run in docker container"],
"delta": "0:00:00.019926", "end": "2016-11-29 02:01:31.597629", "failed": true, "rc": 1,
"start": "2016-11-29 02:01:31.577703",
"stderr": "the input device is not a TTY", "stdout": "", "stdout_lines": [], "warnings": []}
The solution was to change from docker exec -it to docker exec --tty or short docker exec -t
It was left to re-write it into docker+command but that is another story in the backlog