Merge pull request #26258 from pirgeo

* gh-26258:
  Polish "Refine documentation"
  Refine documentation
  Polish "Add properties for Dynatrace metrics API v2 ingest with Micrometer"
  Add properties for Dynatrace metrics API v2 ingest with Micrometer

Closes gh-26258

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/dynatrace/DynatraceProperties.java

@@ -16,34 +16,31 @@
 
 package org.springframework.boot.actuate.autoconfigure.metrics.export.dynatrace;
 
+import java.util.Map;
+
 import org.springframework.boot.actuate.autoconfigure.metrics.export.properties.StepRegistryProperties;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.DeprecatedConfigurationProperty;
 
 /**
  * {@link ConfigurationProperties @ConfigurationProperties} for configuring Dynatrace
  * metrics export.
  *
  * @author Andy Wilkinson
+ * @author Georg Pirklbauer
  * @since 2.1.0
  */
 @ConfigurationProperties(prefix = "management.metrics.export.dynatrace")
 public class DynatraceProperties extends StepRegistryProperties {
 
-	/**
-	 * Dynatrace authentication token.
-	 */
-	private String apiToken;
+	private final V1 v1 = new V1();
 
-	/**
-	 * ID of the custom device that is exporting metrics to Dynatrace.
-	 */
-	private String deviceId;
+	private final V2 v2 = new V2();
 
 	/**
-	 * Technology type for exported metrics. Used to group metrics under a logical
-	 * technology name in the Dynatrace UI.
+	 * Dynatrace authentication token.
 	 */
-	private String technologyType = "java";
+	private String apiToken;
 
 	/**
 	 * URI to ship metrics to. Should be used for SaaS, self managed instances or to
@@ -51,12 +48,6 @@ public class DynatraceProperties extends StepRegistryProperties {
 	 */
 	private String uri;
 
-	/**
-	 * Group for exported metrics. Used to specify custom device group name in the
-	 * Dynatrace UI.
-	 */
-	private String group;
-
 	public String getApiToken() {
 		return this.apiToken;
 	}
@@ -65,20 +56,26 @@ public class DynatraceProperties extends StepRegistryProperties {
 		this.apiToken = apiToken;
 	}
 
+	@Deprecated
+	@DeprecatedConfigurationProperty(replacement = "management.metrics.export.dynatrace.v1.device-id")
 	public String getDeviceId() {
-		return this.deviceId;
+		return this.v1.getDeviceId();
 	}
 
+	@Deprecated
 	public void setDeviceId(String deviceId) {
-		this.deviceId = deviceId;
+		this.v1.setDeviceId(deviceId);
 	}
 
+	@Deprecated
+	@DeprecatedConfigurationProperty(replacement = "management.metrics.export.dynatrace.v1.technology-type")
 	public String getTechnologyType() {
-		return this.technologyType;
+		return this.v1.getTechnologyType();
 	}
 
+	@Deprecated
 	public void setTechnologyType(String technologyType) {
-		this.technologyType = technologyType;
+		this.v1.setTechnologyType(technologyType);
 	}
 
 	public String getUri() {
@@ -89,12 +86,112 @@ public class DynatraceProperties extends StepRegistryProperties {
 		this.uri = uri;
 	}
 
+	@Deprecated
+	@DeprecatedConfigurationProperty(replacement = "management.metrics.export.dynatrace.v1.group")
 	public String getGroup() {
-		return this.group;
+		return this.v1.getGroup();
 	}
 
+	@Deprecated
 	public void setGroup(String group) {
-		this.group = group;
+		this.v1.setGroup(group);
+	}
+
+	public V1 getV1() {
+		return this.v1;
+	}
+
+	public V2 getV2() {
+		return this.v2;
+	}
+
+	public static class V1 {
+
+		/**
+		 * ID of the custom device that is exporting metrics to Dynatrace.
+		 */
+		private String deviceId;
+
+		/**
+		 * Group for exported metrics. Used to specify custom device group name in the
+		 * Dynatrace UI.
+		 */
+		private String group;
+
+		/**
+		 * Technology type for exported metrics. Used to group metrics under a logical
+		 * technology name in the Dynatrace UI.
+		 */
+		private String technologyType = "java";
+
+		public String getDeviceId() {
+			return this.deviceId;
+		}
+
+		public void setDeviceId(String deviceId) {
+			this.deviceId = deviceId;
+		}
+
+		public String getGroup() {
+			return this.group;
+		}
+
+		public void setGroup(String group) {
+			this.group = group;
+		}
+
+		public String getTechnologyType() {
+			return this.technologyType;
+		}
+
+		public void setTechnologyType(String technologyType) {
+			this.technologyType = technologyType;
+		}
+
+	}
+
+	public static class V2 {
+
+		/**
+		 * Default dimensions that are added to all metrics in the form of key-value
+		 * pairs. These are overwritten by Micrometer tags if they use the same key.
+		 */
+		private Map<String, String> defaultDimensions;
+
+		/**
+		 * Whether to enable Dynatrace metadata export.
+		 */
+		private boolean enrichWithDynatraceMetadata = true;
+
+		/**
+		 * Prefix string that is added to all exported metrics.
+		 */
+		private String metricKeyPrefix;
+
+		public Map<String, String> getDefaultDimensions() {
+			return this.defaultDimensions;
+		}
+
+		public void setDefaultDimensions(Map<String, String> defaultDimensions) {
+			this.defaultDimensions = defaultDimensions;
+		}
+
+		public boolean isEnrichWithDynatraceMetadata() {
+			return this.enrichWithDynatraceMetadata;
+		}
+
+		public void setEnrichWithDynatraceMetadata(Boolean enrichWithDynatraceMetadata) {
+			this.enrichWithDynatraceMetadata = enrichWithDynatraceMetadata;
+		}
+
+		public String getMetricKeyPrefix() {
+			return this.metricKeyPrefix;
+		}
+
+		public void setMetricKeyPrefix(String metricKeyPrefix) {
+			this.metricKeyPrefix = metricKeyPrefix;
+		}
+
 	}
 
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/dynatrace/DynatracePropertiesConfigAdapter.java

@@ -16,14 +16,21 @@
 
 package org.springframework.boot.actuate.autoconfigure.metrics.export.dynatrace;
 
+import java.util.Map;
+import java.util.function.Function;
+
+import io.micrometer.dynatrace.DynatraceApiVersion;
 import io.micrometer.dynatrace.DynatraceConfig;
 
+import org.springframework.boot.actuate.autoconfigure.metrics.export.dynatrace.DynatraceProperties.V1;
+import org.springframework.boot.actuate.autoconfigure.metrics.export.dynatrace.DynatraceProperties.V2;
 import org.springframework.boot.actuate.autoconfigure.metrics.export.properties.StepRegistryPropertiesConfigAdapter;
 
 /**
  * Adapter to convert {@link DynatraceProperties} to a {@link DynatraceConfig}.
  *
  * @author Andy Wilkinson
+ * @author Georg Pirklbauer
  */
 class DynatracePropertiesConfigAdapter extends StepRegistryPropertiesConfigAdapter<DynatraceProperties>
 		implements DynatraceConfig {
@@ -44,12 +51,12 @@ class DynatracePropertiesConfigAdapter extends StepRegistryPropertiesConfigAdapt
 
 	@Override
 	public String deviceId() {
-		return get(DynatraceProperties::getDeviceId, DynatraceConfig.super::deviceId);
+		return get(v1(V1::getDeviceId), DynatraceConfig.super::deviceId);
 	}
 
 	@Override
 	public String technologyType() {
-		return get(DynatraceProperties::getTechnologyType, DynatraceConfig.super::technologyType);
+		return get(v1(V1::getTechnologyType), DynatraceConfig.super::technologyType);
 	}
 
 	@Override
@@ -59,7 +66,36 @@ class DynatracePropertiesConfigAdapter extends StepRegistryPropertiesConfigAdapt
 
 	@Override
 	public String group() {
-		return get(DynatraceProperties::getGroup, DynatraceConfig.super::group);
+		return get(v1(V1::getGroup), DynatraceConfig.super::group);
+	}
+
+	@Override
+	public DynatraceApiVersion apiVersion() {
+		return get((properties) -> (properties.getV1().getDeviceId() != null) ? DynatraceApiVersion.V1
+				: DynatraceApiVersion.V2, DynatraceConfig.super::apiVersion);
+	}
+
+	@Override
+	public String metricKeyPrefix() {
+		return get(v2(V2::getMetricKeyPrefix), DynatraceConfig.super::metricKeyPrefix);
+	}
+
+	@Override
+	public Map<String, String> defaultDimensions() {
+		return get(v2(V2::getDefaultDimensions), DynatraceConfig.super::defaultDimensions);
+	}
+
+	@Override
+	public boolean enrichWithDynatraceMetadata() {
+		return get(v2(V2::isEnrichWithDynatraceMetadata), DynatraceConfig.super::enrichWithDynatraceMetadata);
+	}
+
+	private <V> Function<DynatraceProperties, V> v1(Function<V1, V> getter) {
+		return (properties) -> getter.apply(properties.getV1());
+	}
+
+	private <V> Function<DynatraceProperties, V> v2(Function<V2, V> getter) {
+		return (properties) -> getter.apply(properties.getV2());
 	}
 
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/dynatrace/DynatraceMetricsExportAutoConfigurationTests.java

@@ -48,14 +48,15 @@ class DynatraceMetricsExportAutoConfigurationTests {
 	}
 
 	@Test
-	void failsWithoutAUri() {
+	void failsWithADeviceIdWithoutAUri() {
 		this.contextRunner.withUserConfiguration(BaseConfiguration.class)
+				.withPropertyValues("management.metrics.export.dynatrace.device-id:dev-1")
 				.run((context) -> assertThat(context).hasFailed());
 	}
 
 	@Test
 	void autoConfiguresConfigAndMeterRegistry() {
-		this.contextRunner.withUserConfiguration(BaseConfiguration.class).with(mandatoryProperties())
+		this.contextRunner.withUserConfiguration(BaseConfiguration.class).with(v1MandatoryProperties())
 				.run((context) -> assertThat(context).hasSingleBean(DynatraceMeterRegistry.class)
 						.hasSingleBean(DynatraceConfig.class));
 	}
@@ -85,14 +86,25 @@ class DynatraceMetricsExportAutoConfigurationTests {
 
 	@Test
 	void allowsCustomRegistryToBeUsed() {
-		this.contextRunner.withUserConfiguration(CustomRegistryConfiguration.class).with(mandatoryProperties())
+		this.contextRunner.withUserConfiguration(CustomRegistryConfiguration.class).with(v1MandatoryProperties())
 				.run((context) -> assertThat(context).hasSingleBean(DynatraceMeterRegistry.class)
 						.hasBean("customRegistry").hasSingleBean(DynatraceConfig.class));
 	}
 
 	@Test
-	void stopsMeterRegistryWhenContextIsClosed() {
-		this.contextRunner.withUserConfiguration(BaseConfiguration.class).with(mandatoryProperties()).run((context) -> {
+	void stopsMeterRegistryForV1ApiWhenContextIsClosed() {
+		this.contextRunner.withUserConfiguration(BaseConfiguration.class).with(v1MandatoryProperties())
+				.run((context) -> {
+					DynatraceMeterRegistry registry = context.getBean(DynatraceMeterRegistry.class);
+					assertThat(registry.isClosed()).isFalse();
+					context.close();
+					assertThat(registry.isClosed()).isTrue();
+				});
+	}
+
+	@Test
+	void stopsMeterRegistryForV2ApiWhenContextIsClosed() {
+		this.contextRunner.withUserConfiguration(BaseConfiguration.class).run((context) -> {
 			DynatraceMeterRegistry registry = context.getBean(DynatraceMeterRegistry.class);
 			assertThat(registry.isClosed()).isFalse();
 			context.close();
@@ -100,7 +112,7 @@ class DynatraceMetricsExportAutoConfigurationTests {
 		});
 	}
 
-	private Function<ApplicationContextRunner, ApplicationContextRunner> mandatoryProperties() {
+	private Function<ApplicationContextRunner, ApplicationContextRunner> v1MandatoryProperties() {
 		return (runner) -> runner.withPropertyValues(
 				"management.metrics.export.dynatrace.uri=https://dynatrace.example.com",
 				"management.metrics.export.dynatrace.api-token=abcde",

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/dynatrace/DynatracePropertiesConfigAdapterTests.java

@@ -16,6 +16,9 @@
 
 package org.springframework.boot.actuate.autoconfigure.metrics.export.dynatrace;
 
+import java.util.HashMap;
+
+import io.micrometer.dynatrace.DynatraceApiVersion;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -24,6 +27,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * Tests for {@link DynatracePropertiesConfigAdapter}.
  *
  * @author Andy Wilkinson
+ * @author Georg Pirklbauer
  */
 class DynatracePropertiesConfigAdapterTests {
 
@@ -42,6 +46,7 @@ class DynatracePropertiesConfigAdapterTests {
 	}
 
 	@Test
+	@Deprecated
 	void whenPropertiesDeviceIdIsSetAdapterDeviceIdReturnsIt() {
 		DynatraceProperties properties = new DynatraceProperties();
 		properties.setDeviceId("dev-1");
@@ -49,6 +54,15 @@ class DynatracePropertiesConfigAdapterTests {
 	}
 
 	@Test
+	@Deprecated
+	void whenPropertiesV1DeviceIdIsSetAdapterDeviceIdReturnsIt() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.getV1().setDeviceId("dev-1");
+		assertThat(new DynatracePropertiesConfigAdapter(properties).deviceId()).isEqualTo("dev-1");
+	}
+
+	@Test
+	@Deprecated
 	void whenPropertiesTechnologyTypeIsSetAdapterTechnologyTypeReturnsIt() {
 		DynatraceProperties properties = new DynatraceProperties();
 		properties.setTechnologyType("tech-1");
@@ -56,10 +70,88 @@ class DynatracePropertiesConfigAdapterTests {
 	}
 
 	@Test
+	void whenPropertiesV1TechnologyTypeIsSetAdapterTechnologyTypeReturnsIt() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.getV1().setTechnologyType("tech-1");
+		assertThat(new DynatracePropertiesConfigAdapter(properties).technologyType()).isEqualTo("tech-1");
+	}
+
+	@Test
+	@Deprecated
 	void whenPropertiesGroupIsSetAdapterGroupReturnsIt() {
 		DynatraceProperties properties = new DynatraceProperties();
 		properties.setGroup("group-1");
 		assertThat(new DynatracePropertiesConfigAdapter(properties).group()).isEqualTo("group-1");
 	}
 
+	@Test
+	void whenPropertiesV1GroupIsSetAdapterGroupReturnsIt() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.getV1().setGroup("group-1");
+		assertThat(new DynatracePropertiesConfigAdapter(properties).group()).isEqualTo("group-1");
+	}
+
+	@Test
+	@SuppressWarnings("deprecation")
+	void whenDeviceIdIsSetThenAdapterApiVersionIsV1() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.setDeviceId("dev-1");
+		assertThat(new DynatracePropertiesConfigAdapter(properties).apiVersion()).isSameAs(DynatraceApiVersion.V1);
+	}
+
+	@Test
+	void whenV1DeviceIdIsSetThenAdapterApiVersionIsV1() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.getV1().setDeviceId("dev-1");
+		assertThat(new DynatracePropertiesConfigAdapter(properties).apiVersion()).isSameAs(DynatraceApiVersion.V1);
+	}
+
+	@Test
+	void whenDeviceIdIsNotSetThenAdapterApiVersionIsV2() {
+		DynatraceProperties properties = new DynatraceProperties();
+		assertThat(new DynatracePropertiesConfigAdapter(properties).apiVersion()).isSameAs(DynatraceApiVersion.V2);
+	}
+
+	@Test
+	void whenPropertiesMetricKeyPrefixIsSetAdapterGroupReturnsIt() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.getV2().setMetricKeyPrefix("my.prefix");
+		assertThat(new DynatracePropertiesConfigAdapter(properties).metricKeyPrefix()).isEqualTo("my.prefix");
+	}
+
+	@Test
+	void whenPropertiesEnrichWithOneAgentMetadataIsSetAdapterGroupReturnsIt() {
+		DynatraceProperties properties = new DynatraceProperties();
+		properties.getV2().setEnrichWithDynatraceMetadata(true);
+		assertThat(new DynatracePropertiesConfigAdapter(properties).enrichWithDynatraceMetadata()).isTrue();
+	}
+
+	@Test
+	void whenPropertiesDefaultDimensionsIsSetAdapterGroupReturnsIt() {
+		DynatraceProperties properties = new DynatraceProperties();
+		HashMap<String, String> defaultDimensions = new HashMap<>();
+		defaultDimensions.put("dim1", "value1");
+		defaultDimensions.put("dim2", "value2");
+		properties.getV2().setDefaultDimensions(defaultDimensions);
+		assertThat(new DynatracePropertiesConfigAdapter(properties).defaultDimensions())
+				.containsExactlyEntriesOf(defaultDimensions);
+	}
+
+	@Test
+	@SuppressWarnings("deprecation")
+	void defaultValues() {
+		DynatraceProperties properties = new DynatraceProperties();
+		assertThat(properties.getApiToken()).isNull();
+		assertThat(properties.getUri()).isNull();
+		assertThat(properties.getV1().getDeviceId()).isNull();
+		assertThat(properties.getV1().getTechnologyType()).isEqualTo("java");
+		assertThat(properties.getV1().getGroup()).isNull();
+		assertThat(properties.getV2().getMetricKeyPrefix()).isNull();
+		assertThat(properties.getV2().isEnrichWithDynatraceMetadata()).isTrue();
+		assertThat(properties.getV2().getDefaultDimensions()).isNull();
+		assertThat(properties.getDeviceId()).isNull();
+		assertThat(properties.getTechnologyType()).isEqualTo("java");
+		assertThat(properties.getGroup()).isNull();
+	}
+
 }

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/metrics/export/dynatrace/DynatracePropertiesTests.java

@@ -30,12 +30,14 @@ import static org.assertj.core.api.Assertions.assertThat;
  */
 class DynatracePropertiesTests extends StepRegistryPropertiesTests {
 
+	@SuppressWarnings("deprecation")
 	@Test
 	void defaultValuesAreConsistent() {
 		DynatraceProperties properties = new DynatraceProperties();
 		DynatraceConfig config = (key) -> null;
 		assertStepRegistryDefaultValues(properties, config);
 		assertThat(properties.getTechnologyType()).isEqualTo(config.technologyType());
+		assertThat(properties.getV1().getTechnologyType()).isEqualTo(config.technologyType());
 	}
 
 }

spring-boot-project/spring-boot-docs/src/docs/asciidoc/actuator/metrics.adoc

@@ -147,7 +147,68 @@ You can also change the interval at which metrics are sent to Datadog:
 
 [[actuator.metrics.export.dynatrace]]
 ==== Dynatrace
-Dynatrace registry pushes metrics to the configured URI periodically.
+Dynatrace offers two metrics ingest APIs, both of which are implemented for {micrometer-registry-docs}/dynatrace[Micrometer].
+Config properties in the `v1` namespace only apply when exporting to the {dynatrace-help}/dynatrace-api/environment-api/metric-v1/[Timeseries v1 API].
+Config properties in the `v2` namespace only apply when exporting to the {dynatrace-help}/dynatrace-api/environment-api/metric-v2/post-ingest-metrics/[Metrics v2 API].
+Please note that this integration can only export to either the `v1` or `v2` version of the API at a time.
+If the `device-id` (required for v1, but not used in v2) is set in the `v1` namespace, metrics will be exported to the `v1` endpoint.
+Otherwise, `v2` is assumed.
+
+
+
+[[actuator.metrics.export.dynatrace.v2-api]]
+===== v2 API
+The v2 API can be used in two ways.
+
+If a local OneAgent is running on the host, metrics will be automatically exported to the {dynatrace-help}/how-to-use-dynatrace/metrics/metric-ingestion/ingestion-methods/local-api/[local OneAgent ingest endpoint].
+The ingest endpoint forwards the metrics to the Dynatrace backend.
+This is the default behaviour and requires no special setup beyond a dependency on `io.micrometer:micrometer-registry-dynatrace`.
+
+If no local OneAgent is running, the endpoint of the {dynatrace-help}/dynatrace-api/environment-api/metric-v2/post-ingest-metrics/[Metrics v2 API] and an API token are required.
+The {dynatrace-help}/dynatrace-api/basics/dynatrace-api-authentication/[API token] must have the "Ingest metrics" (`metrics.ingest`) permission set.
+It is recommended to limit the scope of the token to this one permission.
+Please ensure that the endpoint URI contains the path (e.g. `/api/v2/metrics/ingest`).
+
+[source,yaml,indent=0,subs="verbatim",configprops,configblocks]
+----
+	management:
+	  metrics:
+	    export:
+	      dynatrace:
+	        # uri: "https://{your-domain}/e/{your-environment-id}/api/v2/metrics/ingest" for managed deployments.
+	        uri: "https://{your-environment-id}.live.dynatrace.com/api/v2/metrics/ingest"
+	        api-token: "YOUR_TOKEN" # should be read from a secure source and not hard-coded.
+----
+
+When using the Dynatrace v2 API, the following optional features are available:
+
+* Metric key prefix: sets a prefix that will be prepended to all exported metric keys.
+* Enrich with Dynatrace metadata: if a OneAgent or Dynatrace operator is running, enrich metrics with additional metadata (e.g. about the host, process or pod).
+* Default dimensions: specify key-value pairs that are added to all exported metrics.
+  If tags with the same key are specified using Micrometer, they overwrite the default dimensions.
+
+
+[source,yaml,indent=0,subs="verbatim",configprops,configblocks]
+----
+	management:
+	  metrics:
+	    export:
+	      dynatrace:
+	        # specify token and uri or leave blank for OneAgent export
+	        v2:
+	          metric-key-prefix: "your.key.prefix"
+	          enrich-with-dynatrace-metadata: true
+	          default-dimensions:
+	            key1: "value1"
+	            key2: "value2"
+----
+
+
+
+[[actuator.metrics.export.dynatrace.v1-api]]
+===== v1 API (Legacy)
+The Dynatrace v1 API metrics registry pushes metrics to the configured URI periodically using the {dynatrace-help}/dynatrace-api/environment-api/metric-v1/[Timeseries v1 API].
+For backwards-compatibility with existing setups, when `device-id` is set (required for v1, but not used in v2), metrics will be exported to the Timeseries v1 endpoint.
 To export metrics to {micrometer-registry-docs}/dynatrace[Dynatrace], your API token, device ID, and URI must be provided:
 
 [source,yaml,indent=0,subs="verbatim",configprops,configblocks]
@@ -156,12 +217,21 @@ To export metrics to {micrometer-registry-docs}/dynatrace[Dynatrace], your API t
 	  metrics:
 	    export:
 	      dynatrace:
-	        api-token: "YOUR_TOKEN"
-	        device-id: "YOUR_DEVICE_ID"
-	        uri: "YOUR_URI"
+	        # uri: "https://{your-domain}/e/{your-environment-id}" on managed deployments.
+	        uri: "https://{your-environment-id}.live.dynatrace.com"
+	        api-token: "YOUR_TOKEN" # should be read from a secure property source
+	        v1:
+	          device-id: "YOUR_DEVICE_ID"
 ----
 
-You can also change the interval at which metrics are sent to Dynatrace:
+For the v1 API, the base environment URI must be specified without a path as the v1 endpoint path will be added automatically.
+
+
+
+[[actuator.metrics.export.dynatrace.version-independent-settings]]
+===== Version-independent Settings
+In addition to the API endpoint and token, you can also change the interval at which metrics are sent to Dynatrace.
+The default export interval is `60s`.
 
 [source,yaml,indent=0,subs="verbatim",configprops,configblocks]
 ----
@@ -172,6 +242,8 @@ You can also change the interval at which metrics are sent to Dynatrace:
 	        step: "30s"
 ----
 
+More information on how to set up the Dynatrace exporter for Micrometer can be found in {micrometer-registry-docs}/dynatrace[the Micrometer documentation].
+
 
 
 [[actuator.metrics.export.elastic]]
@@ -188,8 +260,6 @@ The location of the Elastic server to use can be provided using the following pr
 	        host: "https://elastic.example.com:8086"
 ----
 
-
-
 [[actuator.metrics.export.ganglia]]
 ==== Ganglia
 By default, metrics are exported to {micrometer-registry-docs}/ganglia[Ganglia] running on your local machine.

spring-boot-project/spring-boot-docs/src/docs/asciidoc/attributes.adoc

@@ -93,6 +93,7 @@
 :spring-webservices-docs: https://docs.spring.io/spring-ws/docs/{spring-webservices-version}/reference/html/
 :ant-docs: https://ant.apache.org/manual
 :dependency-management-plugin-code: https://github.com/spring-gradle-plugins/dependency-management-plugin
+:dynatrace-help: https://www.dynatrace.com/support/help
 :embedded-mongo-code: https://github.com/flapdoodle-oss/de.flapdoodle.embed.mongo/blob/de.flapdoodle.embed.mongo-{embedded-mongo-version}
 :gradle-docs: https://docs.gradle.org/current/userguide
 :hibernate-docs: https://docs.jboss.org/hibernate/orm/5.4/userguide/html_single/Hibernate_User_Guide.html