How to Dynamically Load Properties Files in Spring Boot Based on Server Configuration

Learn how to configure your Spring Boot application to load specific property files based on the server name, ensuring seamless deployment across different environments.
---

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to tell spring boot which property files to load according to the server?

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Dynamically Load Properties Files in Spring Boot Based on Server Configuration

In the world of software development, particularly when using frameworks like Spring Boot, effective management of configuration files can be critical, especially in environments with multiple deployment scenarios. This guide addresses a common scenario: how to load different property files based on the server’s name.

The Problem

Imagine you have two distinct servers—let's call them SERV-A and SERV-B. Each server also has its own environment instances, such as e1 and e2. The challenge here is to ensure that when your application is deployed on either of these servers, it seamlessly loads the appropriate configuration properties unique to each environment, while using a shared codebase.

Here’s a glimpse of the initial structure of your resources:

[[See Video to Reveal this Text or Code Snippet]]

With this setup, when the application is deployed on SERV-A, it requires the properties from the SERV-A folder. Similarly, it should pull properties from SERV-B when deployed on the second server.

The Solution

Thanks to contributions from the community, such as -Anton Belev, a resolution has been identified that simplifies this process through a streamlined structure. You can centralize your properties based on server names without creating nested directories. Here’s how to do it:

Reorganize Your Resources: Modify your resource structure to eliminate subdirectories for individual servers and instead, create distinct property files named according to their respective servers and environments. Your updated structure should look like this:

[[See Video to Reveal this Text or Code Snippet]]

Using Java Command to Deploy: When you need to deploy your application, you can specify which set of configurations to use by leveraging Spring Boot’s profile feature. Here’s the command you would use for deployment on SERV-A:

[[See Video to Reveal this Text or Code Snippet]]

This command tells your Spring Boot application to activate the SerA-e1 properties file, ensuring that it loads the correct configuration based on the environment.

Key Takeaways

Organizing your property files based on their server and environment helps in maintaining cleaner, more manageable code.

By following these steps, you'll be able to deploy your Spring Boot application on any server while effectively handling environment-specific configurations. This practice not only streamlines your deployment process but also aids in reducing potential configuration-related errors.

Conclusion

Proper management of configuration properties is crucial for the successful deployment of applications across various servers. By restructuring your resources and utilizing Spring Boot's profile support, you can effortlessly ensure each server loads its corresponding properties.

Feel free to reach out with any questions or comments regarding this setup—I’d love to help you on your Spring Boot journey!