Issue
I am currently running a cronjob from a host machine (Linux Redhat) executing a script in a docker container. The problem I have is that when I redirect the standard output to a file with path inside the docker container, the cronjob threw an exception basically saying that the path of the log file cannot be found. But if I change the output log file path to be a path that is on the host machine, it works fine.
Below does not work
0 9 * * 1-5 sudo docker exec -i /path/in/docker/container/script.sh > /path/in/docker/container/script.shout
But this one works
0 9 * * 1-5 sudo docker exec -i /path/in/docker/container/script.sh > /path/in/host/script.shout
How do I get the first cronjob working so I can have the output file in the docker container using the path in the docker container?
I don't want to run the cronjob as root and that's why I need sudo before docker exec. Please note, only root has access to the docker volume path in the host machine, which is why I can't use the docker volume path either.
Solution
I would rather try and path the redirection path as a parameter to the script (so remove the '>'), and make the script itself redirect its output to that parameter file.
Since the script is executed in a docker container, it would see that path (as opposed to the cron job, which sees by default host paths)
Answered By - VonC
