Chapter 10. Adding YAML configuration support

Procedure

1. To start Quarkus in development mode, enter the following command in the directory that contains your Quarkus application pom.xml file:

   ./mvnw quarkus:dev

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2. Open your YAML configuration file.
3. Add a nested class configuration similar to the following syntax:

Procedure

1. Open your YAML configuration file.

2. To set a profile dependent configuration, add the profile name before defining the key-value pairs using the ”%profile” syntax:

   In the following example the PostgreSQL database is configured to be available at the jdbc:postgresql://localhost:5432/some-database URL when Quarkus runs in the development mode:

   "%dev":
     quarkus:
       datasource:
         url: jdbc:postgresql://localhost:5432/some-database
         driver: org.postgresql.Driver
         username: quarkus
         password: quarkus

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3. If you stopped the application, enter the following command to restart it:

   ./mvnw quarkus:dev

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Procedure

1. Open your YAML configuration file.

2. To define a YAML property as a prefix of another property, add a tilde (~) in the scope of the property as shown in the following example:

   quarkus:
     http:
       cors:
         ~: true
         methods: GET,PUT,POST

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3. To compile your Quarkus application in development mode, enter the following command from the project directory:

   ./mvnw quarkus:dev

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   Note

   You can use YAML keys for conflicting configuration keys at any level because they are not included in the assembly of configuration property name.