Substitute env variables in config file

[jonasengelmann]

Allow environment variables to be used in a schedule.ini file.

schedule.ini

[job-run "print-write-date"]
schedule = @every 5s
image = ${IMAGE} 

docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock:ro -e IMAGE=ubuntu:latest mcuadros/ofelia:latest

See also this comment: #28 (comment)

[taraspos]

Have you tried to make this work using docker-compose and docker labels instead?

[jonasengelmann]

I tried, but it did not allow me to use an env variable within a volume path. Trying to bind multiple volumes gets rather messy too.

[taraspos]

@jonasengelmann I just added integration test using docker-compose.
You can see example of variable expansion in there, it is quite flexible:

• https://github.com/mcuadros/ofelia/blob/master/integration/test-run-exec/docker-compose.yml

Would this be helpful for your use-case?