December 2019
Intermediate to advanced
314 pages
6h 51m
English
Content preview from Hands-On Cloud-Native Applications with Java and Quarkus
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Multiple configuration sources
The application.properties file is not the only option when it comes to setting application properties. As per MicroProfile's Config specification, you can also use the following:
- Java system properties: Java system properties can be read/written programmatically by means of the System.getProperty() and System.setProperty() APIs. As an alternative, you can set a property on the command line with the -D option, as follows:
java -Dquarkus.http.port=8180 app.jar
- Environment variables: This requires setting an environment variable for the property, as follows:
export QUARKUS_HTTP_PORT=8180
As you may have noticed, the matching environment variable name has been set to uppercase and the dot has been replaced ...
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