apply workaround

spring-cloud/spring-cloud-sleuth#2132

build.gradle.kts

@@ -32,6 +32,7 @@ dependencies {
 	implementation("org.springframework.boot:spring-boot-starter-webflux")
 	implementation("org.springframework.boot:spring-boot-starter-actuator")
 	implementation("org.springframework.cloud:spring-cloud-starter-sleuth")
+	implementation("io.projectreactor.netty:reactor-netty-http-brave")
 
 
 	// kotlin related

src/main/kotlin/de/phitho/sample/web/NettyLogTracingConfiguration.kt

@@ -0,0 +1,24 @@
+package de.idealo.homepage.dataprovider.config.logging
+
+import brave.http.HttpTracing
+
+import org.springframework.beans.factory.ObjectProvider
+
+import org.springframework.boot.web.embedded.netty.NettyServerCustomizer
+
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import reactor.netty.http.brave.ReactorNettyHttpTracing
+import reactor.netty.http.server.HttpServer
+
+@Configuration(proxyBeanMethods = true)
+class NettyLogTracingConfiguration {
+    @Bean
+    fun traceNettyServerCustomizer(tracing: ObjectProvider<HttpTracing>): NettyServerCustomizer {
+        return NettyServerCustomizer { server: HttpServer ->
+            ReactorNettyHttpTracing.create(
+                tracing.getObject()
+            ).decorateHttpServer(server)
+        }
+    }
+}