Micronaut profile based configuration properties

Micronaut allows environment specific configuration in the same manner as Spring Boot. It searches for your application.yml, application.properties, application.json or application.groovy file. So for your production environment you could define application-prod.yml:

micronaut:
  application:
    name: hello-service

hello:
  message: This is prod

The configuration properties can be accessed using the @Value annotation in controllers and services.

@Value('${hello.message}')
private String message

When you run the jar you can specify the environment using the micronaut.environments system property:

java -Dmicronaut.environments=prod -jar app.jar

Injecting the Environment bean allows you to get access to the environment programmatically:

@Inject
Environment environment

@Get("/")
public Set<String> getProfiles() {
    return environment.getActiveNames()
}