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Скачать или смотреть Configuring Multiple Prometheus Endpoints with Different Data in Spring Actuator

  • vlogize
  • 2025-03-29
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Configuring Multiple Prometheus Endpoints with Different Data in Spring Actuator
Spring Actuator: Configure multiple Prometheus endpoint with different datajavaspring bootprometheusspring actuator
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Описание к видео Configuring Multiple Prometheus Endpoints with Different Data in Spring Actuator

Learn how to configure multiple `Prometheus` endpoints with different data in `Spring Actuator` for your Spring Boot applications. Discover a straightforward solution to monitor both internal and external services effectively.
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This video is based on the question https://stackoverflow.com/q/73728526/ asked by the user 'BT_Code' ( https://stackoverflow.com/u/13227074/ ) and on the answer https://stackoverflow.com/a/73826090/ provided by the user 'BT_Code' ( https://stackoverflow.com/u/13227074/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Configuring Multiple Prometheus Endpoints with Different Data in Spring Actuator

In today’s cloud-native world, monitoring applications is crucial for ensuring their health and performance. Prometheus has become a go-to solution for many developers and DevOps professionals for monitoring Spring Boot applications. However, configuring Prometheus to monitor multiple services, especially when some of those services are external, can present challenges.

In this guide, we'll discuss how to configure multiple Prometheus endpoints within a single Spring Boot application using the Spring Actuator module. We'll specifically explore how to set up two separate endpoints that return different data: one for internal APIs and another for custom metrics from external services.

The Problem: Multiple Prometheus Endpoints

The challenge presented involves configuring two different Prometheus endpoints on the same Spring server:

Internal API Metrics: Accessible at /actuator/prometheus/api, returning standard API metrics.

External Service Metrics (Thingworx): Accessible at /actuator/prometheus/thingworx, which provides metrics sourced at regular intervals from an external service.

The aim is to have both sets of data available in Prometheus under separate jobs while making the configuration as straightforward as possible.

Proposed Solution: Custom Prometheus Endpoint

After some exploration, the following solution was developed, which avoids the complexities associated with modifying the default Prometheus endpoint. Instead, we will create a custom endpoint that allows for greater flexibility.

Steps to Implement a Custom Prometheus Endpoint

Define the Controller: Create a new REST controller that will map to the desired paths under /actuator.

Inject Services: Utilize services to gather metrics for both internal and external data.

Set Up Endpoint Mappings: Provide mappings for both /api and /thingworx.

Here’s how you can implement it in your Spring Boot application:

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

Explanation of the Code

@RestController: This annotation indicates that the class serves REST endpoints.

@RestControllerEndpoint: Used to create a custom endpoint under the actuator path.

Service Injection: The APIPrometheusService handles the scraping of internal API metrics, while the ThingworxPrometheusService manages interactions with the external service.

Mapping Methods: Each method corresponds to a specific path and returns the relevant metrics data in plain text format.

Key Benefits of This Approach

Full Control: By defining your custom endpoints, you have complete control over the data being returned and the mappings.

Separation of Concerns: Internal API metrics and external service metrics are neatly separated, making management and monitoring straightforward.

Enhanced Flexibility: You can easily extend or modify the controller as needed, allowing for future changes in metrics or paths.

Conclusion

Monitoring applications effectively requires robust solutions, particularly in scenarios with varying types of services. By setting up multiple Prometheus endpoints within a single Spring Boot application, you can ensure that all relevant metrics are tracked, whether they come from internal APIs or external services.

This customization not only simplifies the monitoring process but also enhances your application's observability, allowing for timely interventions and improved performance.

Implementing the steps outlined above should help you successfully configure your Spring Actuator with multiple Prometheus endpoints.

If you have any questions or would like t

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