(Quick Reference)

4.1.3.3 External Configuration File

Version: 4.0.2

4.1.3.3 External Configuration File

If you set the configuration property logging.config, you can instruct Logback to use an external configuration file.

grails-app/conf/application.yml
logging:
    config: /Users/me/config/logback.groovy

Alternatively, you can supply the configuration file location with a system property:

$ ./gradlew -Dlogging.config=/Users/me/config/logback.groovy bootRun

Or, you could use an environment variable:

$ export LOGGING_CONFIG=/Users/me/config/logback.groovy
$ ./gradlew bootRun