ANSI logging with Spring Boot

Question

I use Logback logging with Spring Boot 1.5.15.

Looking at the documentation I should be able to disable the ANSI logging (colour output) using the configuration spring.output.ansi.enabled=never .

This appears to work fine in the local console however not in a Docker environment. Has anyone running into this ?

Answer 1

spring.output.ansi.enabled=never is the answer to the problem even at the Docker level. However, in my situation this was set in the base image with the environment variable SPRING_OUTPUT_ANSI_ENABLED=ALWAYS and so for some reason the application.yaml configuration was being ignored.

Precedency is documented further in https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html#boot-features-external-config