Does application.yml support environment variables?

Question

I tried using env variables in my application.yml configration like:

spring:
  main:
    show_banner: false

---

spring:
  profiles: production
server:
  addres         


        

Answer 1

You even can add default value, if environment variable not provided:

logging:
  level:
    root: ${LOGGING_LEVEL_ROOT:info}