Ensure that metrics and observation properties are enabled

Closes gh-32676

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/web/client/HttpClientObservationsAutoConfiguration.java

@@ -32,6 +32,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.web.client.RestTemplateAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
@@ -53,6 +54,7 @@ import org.springframework.core.annotation.Order;
 @ConditionalOnClass(Observation.class)
 @ConditionalOnBean(ObservationRegistry.class)
 @Import({ RestTemplateObservationConfiguration.class, WebClientObservationConfiguration.class })
+@EnableConfigurationProperties({ MetricsProperties.class, ObservationProperties.class })
 public class HttpClientObservationsAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/web/client/RestTemplateObservationConfigurationTests.java

@@ -57,7 +57,7 @@ import static org.springframework.test.web.client.response.MockRestResponseCreat
 @SuppressWarnings({ "deprecation", "removal" })
 class RestTemplateObservationConfigurationTests {
 
-	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner().with(MetricsRun.simple())
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
 			.withBean(ObservationRegistry.class, TestObservationRegistry::create)
 			.withConfiguration(AutoConfigurations.of(ObservationAutoConfiguration.class,
 					RestTemplateAutoConfiguration.class, HttpClientObservationsAutoConfiguration.class));
@@ -118,22 +118,23 @@ class RestTemplateObservationConfigurationTests {
 
 	@Test
 	void afterMaxUrisReachedFurtherUrisAreDenied(CapturedOutput output) {
-		this.contextRunner.withPropertyValues("management.metrics.web.client.max-uri-tags=2").run((context) -> {
-
-			RestTemplate restTemplate = context.getBean(RestTemplateBuilder.class).build();
-			MockRestServiceServer server = MockRestServiceServer.createServer(restTemplate);
-			for (int i = 0; i < 3; i++) {
-				server.expect(requestTo("/test/" + i)).andRespond(withStatus(HttpStatus.OK));
-			}
-			for (int i = 0; i < 3; i++) {
-				restTemplate.getForObject("/test/" + i, String.class);
-			}
-			TestObservationRegistry registry = context.getBean(TestObservationRegistry.class);
-			TestObservationRegistryAssert.assertThat(registry);
-			// TODO: check observation count for name
-			assertThat(output).contains("Reached the maximum number of URI tags for 'http.client.requests'.")
-					.contains("Are you using 'uriVariables'?");
-		});
+		this.contextRunner.with(MetricsRun.simple()).withPropertyValues("management.metrics.web.client.max-uri-tags=2")
+				.run((context) -> {
+
+					RestTemplate restTemplate = context.getBean(RestTemplateBuilder.class).build();
+					MockRestServiceServer server = MockRestServiceServer.createServer(restTemplate);
+					for (int i = 0; i < 3; i++) {
+						server.expect(requestTo("/test/" + i)).andRespond(withStatus(HttpStatus.OK));
+					}
+					for (int i = 0; i < 3; i++) {
+						restTemplate.getForObject("/test/" + i, String.class);
+					}
+					TestObservationRegistry registry = context.getBean(TestObservationRegistry.class);
+					TestObservationRegistryAssert.assertThat(registry);
+					// TODO: check observation count for name
+					assertThat(output).contains("Reached the maximum number of URI tags for 'http.client.requests'.")
+							.contains("Are you using 'uriVariables'?");
+				});
 	}
 
 	@Test