Copy server customization to management context

If the actuator endpoints are configured on a different port then there
are some settings in the main ServerProperties that we would like to
re-use (e.g. the access log). The easiest way to do that is to just
configure the management server using the same ServerProperties instance
and then overwrite the things that are different (and stored in
ManagementServerProperties).

Fixes gh-1581

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/EndpointWebMvcChildContextConfiguration.java

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.actuate.autoconfigure;
 
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -36,6 +37,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.SearchStrategy;
 import org.springframework.boot.autoconfigure.web.ErrorAttributes;
 import org.springframework.boot.autoconfigure.web.HttpMessageConverters;
+import org.springframework.boot.autoconfigure.web.ServerProperties;
 import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
 import org.springframework.boot.context.embedded.EmbeddedServletContainer;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
@@ -75,13 +77,23 @@ public class EndpointWebMvcChildContextConfiguration {
 		// instances get their callback very early in the context lifecycle.
 		private ManagementServerProperties managementServerProperties;
 
+		private ServerProperties server;
+
 		@Override
 		public void customize(ConfigurableEmbeddedServletContainer container) {
 			if (this.managementServerProperties == null) {
 				this.managementServerProperties = BeanFactoryUtils
 						.beanOfTypeIncludingAncestors(this.beanFactory,
 								ManagementServerProperties.class);
+				this.server = BeanFactoryUtils
+						.beanOfTypeIncludingAncestors(this.beanFactory,
+								ServerProperties.class);
 			}
+			// Customize as per the parent context first (so e.g. the access logs go to the same place)
+			server.customize(container);
+			// Then reset the error pages
+			container.setErrorPages(Collections.<ErrorPage>emptySet());
+			// and add the management-specific bits
 			container.setPort(this.managementServerProperties.getPort());
 			container.setAddress(this.managementServerProperties.getAddress());
 			container.setContextPath(this.managementServerProperties.getContextPath());

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/autoconfigure/EndpointWebMvcAutoConfigurationTests.java

@@ -35,6 +35,7 @@ import org.springframework.boot.autoconfigure.web.ServerProperties;
 import org.springframework.boot.autoconfigure.web.ServerPropertiesAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
 import org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext;
+import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
 import org.springframework.boot.context.embedded.EmbeddedServletContainer;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerInitializedEvent;
 import org.springframework.boot.test.EnvironmentTestUtils;
@@ -222,6 +223,7 @@ public class EndpointWebMvcAutoConfigurationTests {
 		assertThat(localServerPort, notNullValue());
 		assertThat(localManagementPort, notNullValue());
 		assertThat(localServerPort, not(equalTo(localManagementPort)));
+		assertThat(applicationContext.getBean(ServerPortConfig.class).getCount(), equalTo(2));
 		this.applicationContext.close();
 		assertAllClosed();
 	}
@@ -303,10 +305,22 @@ public class EndpointWebMvcAutoConfigurationTests {
 
 	@Configuration
 	public static class ServerPortConfig {
+		
+		private int count = 0;
+		
+		public int getCount() {
+			return count;
+		}
 
 		@Bean
 		public ServerProperties serverProperties() {
-			ServerProperties properties = new ServerProperties();
+			ServerProperties properties = new ServerProperties() {
+				@Override
+				public void customize(ConfigurableEmbeddedServletContainer container) {
+					count++;
+					super.customize(container);
+				}
+			};
 			properties.setPort(ports.get().server);
 			return properties;
 		}

spring-boot-samples/spring-boot-sample-actuator/src/main/resources/application.properties

 logging.file: /tmp/logs/app.log
 logging.level.org.springframework.security: INFO
 management.address: 127.0.0.1
+#management.port: 8181
 endpoints.shutdown.enabled: true
 server.tomcat.basedir: target/tomcat
 server.tomcat.access_log_enabled: true