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Helidon Config Profiles Example

This example shows how to load configuration from multiple configuration sources using profiles.

This example contains the following profiles:

  1. no profile - if you start the application with no profile, the usual src/main/resources/application.yaml will be used
  2. local - src/main/resources/application-local.yaml will be used
  3. dev - has an explicit profile file config-profile-dev.yaml on classpath that defines an inlined configuration
  4. stage - has an explicit profile file config-profile-stage.yaml on classpath that defines a classpath config source
  5. prod - has an explicit profile file config-profile-prod.yaml on file system that defines a path config source

To switch profiles

  • either use a system property config.profile
  • or use an environment variable HELIDON_CONFIG_PROFILE

How to run this example:

Build the application

mvn clean package

Run it with a profile

java -Dconfig.profile=prod -jar target/helidon-examples-config-profiles.jar

Changing the profile name should use different configuration.