livelessons-operations-actuator-extensions

Lesson 3: Creating Operations-Friendly Microservices (Extending Actuator)

Introduction

Demonstrates how you can add your own actuator endpoints.

Building and running the sample

Use the following commands to build run the application:

$ mvn clean package
$ java -jar target/livelessons-operations-actuator-extensions-1.0.0-SNAPSHOT.jar

Understanding the code

The WeatherEndpoint shows how you can easily add actuator endpoints by writing a bean that implements the Endpoint interface (in this case by extending AbstractEndpoint). You can access in the same way as the standard ones (HTTP, SSH, JMX).

The WeatherMvcEndpoint shows how you can also write specific extensions to be used when the endpoint is accessed over HTTP. In this case we are adding a content type support. If you open http://localhost:8080/weather in a browser you will see red text, if you use curl you don’t see any HTML markup.