Extern log4.properties file with Spring Boot

Question

I am running my app with executable jar.

I have log4j.properties inside /resources folder

In prod I would like to override it and have it within external dir

How I could do that using Spring-Boot?

Answer 1

-Dlogging.config=/path/to/log4j.properties

http://docs.spring.io/spring-boot/docs/current/reference/html/howto-logging.html

Answer 2

If you don't like to add command line arguments, you can make additional application.properties on the directory where you start the application. like:

# log4j configuration for product
logging.config=log4j-prod.properties

Then, this application.properties will override the /resources/application.properties and, the log4j-prod.properties will be used on the product environment. Please read more details on:

http://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html#boot-features-external-config-application-property-files