From 616bada6f50ad3c04ebd74280f5e0c3d6a3f4f28 Mon Sep 17 00:00:00 2001
From: Madhura Bhave <mbhave@pivotal.io>
Date: Tue, 21 Nov 2017 15:39:27 -0800
Subject: [PATCH] Document ReactiveHealthIndicator support

Closes gh-10881
---
 .../asciidoc/production-ready-features.adoc   | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc b/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc
index 0ad0e503d9..448699a94d 100644
--- a/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc
+++ b/spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc
@@ -476,7 +476,31 @@ The following table shows the default status mappings for the built-in statuses:
 |No mapping by default, so http status is 200
 |===
 
+[[reactive-health-indicators]]
+==== ReactiveHealthIndicators
+For reactive applications, such as those using Spring WebFlux, ReactiveHealthIndicators provide a
+non-blocking contract for getting application health. Similar to traditional HealthIndicators,
+health information is collected from all {sc-spring-boot-actuator}/health/ReactiveHealthIndicator.{sc-ext}[`ReactiveHealthIndicator`]
+beans defined in your `ApplicationContext`. Spring Boot adds autoconfiguration for `RedisReactiveHealthIndicator`.
+Regular HealthIndicators that do not check against a reactive API are executed on the elastic scheduler.
 
+To provide custom health information from a reactive API, you can register Spring beans that implement the
+{sc-spring-boot-actuator}/health/ReactiveHealthIndicator.{sc-ext}[`ReactiveHealthIndicator`] interface.
+The following code shows a sample `ReactiveHealthIndicator` implementation:
+
+[source,java,indent=0]
+----
+	@Component
+	public class MyReactiveHealthIndicator implements ReactiveHealthIndicator {
+
+		@Override
+		public Mono<Health> health() {
+			return doHealthCheck() //perform some specific health check that returns a Mono<Health>
+				.onErrorResume(ex -> Mono.just(new Health.Builder().down(ex).build())));
+		}
+
+	}
+----
 
 [[production-ready-application-info]]
 === Application Information