spring-boot

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History

Brian Clozel 3879a7505c Record cancelled client requests in WebClient Prior to this commit, cancelled client requests (for example as a result of a `timeout()` reactor operator would not be recorded by Micrometer. This commit instruments the cancelled signal for outgoing client requests and assigns a status `CLIENT_ERROR`. The cancellation can be intentional (triggering a timeout and falling back on a faster alternative) or considered as an error. The intent cannot be derived from the signal itself so we're considering it as a client error. Closes gh-18444		5 years ago
..
src	Record cancelled client requests in WebClient	5 years ago
README.adoc	Revisit documentation that mentions Gradle "compile" configuration	5 years ago
build.gradle	Add R2BC connection pool metrics	5 years ago

README.adoc

= Spring Boot - Actuator

Spring Boot Actuator includes a number of additional features to help you monitor and
manage your application when it's pushed to production. You can choose to manage and
monitor your application using HTTP or JMX endpoints. Auditing, health and metrics
gathering can be automatically applied to your application. The
https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#production-ready[user guide]
covers the features in more detail.

== Enabling the Actuator
The simplest way to enable the features is to add a dependency to the
`spring-boot-starter-actuator` '`Starter`'. To add the actuator to a Maven-based project,
add the following '`Starter`' dependency:

[source,xml,indent=0]
----
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
	</dependencies>
----

For Gradle, use the following declaration:

[indent=0]
----
	dependencies {
		implementation 'org.springframework.boot:spring-boot-starter-actuator'
	}
----

== Features
* **Endpoints** Actuator endpoints allow you to monitor and interact with your
  application. Spring Boot includes a number of built-in endpoints and you can also add
  your own. For example the `health` endpoint provides basic application health
  information. Run up a basic application and look at `/actuator/health`.
* **Metrics** Spring Boot Actuator provides dimensional metrics by integrating with
  https://micrometer.io[Micrometer].
* **Audit** Spring Boot Actuator has a flexible audit framework that will publish events
  to an `AuditEventRepository`. Once Spring Security is in play it automatically publishes
  authentication events by default. This can be very useful for reporting, and also to
  implement a lock-out policy based on authentication failures.