Can we use multiple yaml files in a single spring boot application?

Question

I have one yaml file that reads all the environment profiles. I need another yaml file to create a feature switch that i can turn on/off during deployment. And how can we define the feature switch in properties file.

Answer 1

Yes, you can use multiple YAML files if you use spring profile. For example, if you start your JVM with the following flag:

-Dspring.profiles.active=deployed,cassandra

It will pick up the following application YAML files:

application.yml, application-deployed.yml, and application-cassandra.yml

Answer 2

Another way to do this, is by adding this key in the application.yml file like below

spring:
  profiles:
    include:
      - student
      - address

and you can name your yaml files, as

application-student.yml, application-address.yml