Updating spring boot application configuration at runtime

Question

I have implemented shutdown API in my spring-boot project by setting following values in application.properties:

 management.endpoint.shutdown.enabled=true
 management.endpoint.info.enabled=true
 management.endpoints.web.exposure.include=*

Now I want to disable the shutdown API dynamically with help of database like I will have those above configurations as key, value pair that I can change anytime.

On its change, the application should get also updated with the new config values thereby shutdown API gets disabled .

Answer 1

You could use Netflix Archaius

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-archaius</artifactId>
</dependency>

You don't need to use @Value annotation here.

Usage

DynamicStringProperty dynamicProperty = DynamicPropertyFactory.getInstance().getStringProperty("management.endpoint.shutdown.enabled", "default value here");
String propertyCurrentValue = dynamicProperty.get();

If the data changes in property file at any point, Archaius will detect it at runtime and will start retrieving the new values.

Useful references

• Archaius Girhub info
• Archaius with Various Database Configurations
• Archaius for Property Management - Basics