Merge pull request #25721 from shakuzen

* pr/25721:
  Polish "Support sending metrics to InfluxDB v2"
  Support sending metrics to InfluxDB v2

Closes gh-25721

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

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.actuate.autoconfigure.metrics.export.influx;
 
+import io.micrometer.influx.InfluxApiVersion;
 import io.micrometer.influx.InfluxConsistency;
 
 import org.springframework.boot.actuate.autoconfigure.metrics.export.properties.StepRegistryProperties;
@@ -33,7 +34,7 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 public class InfluxProperties extends StepRegistryProperties {
 
 	/**
-	 * Database to send metrics to.
+	 * Database to send metrics to. InfluxDB v1 only.
 	 */
 	private String db = "mydb";
 
@@ -43,12 +44,12 @@ public class InfluxProperties extends StepRegistryProperties {
 	private InfluxConsistency consistency = InfluxConsistency.ONE;
 
 	/**
-	 * Login user of the Influx server.
+	 * Login user of the Influx server. InfluxDB v1 only.
 	 */
 	private String userName;
 
 	/**
-	 * Login password of the Influx server.
+	 * Login password of the Influx server. InfluxDB v1 only.
 	 */
 	private String password;
 
@@ -89,10 +90,33 @@ public class InfluxProperties extends StepRegistryProperties {
 
 	/**
 	 * Whether to create the Influx database if it does not exist before attempting to
-	 * publish metrics to it.
+	 * publish metrics to it. InfluxDB v1 only.
 	 */
 	private boolean autoCreateDb = true;
 
+	/**
+	 * API version of InfluxDB to use. Defaults to 'v1' unless an org is configured. If an
+	 * org is configured, defaults to 'v2'.
+	 */
+	private InfluxApiVersion apiVersion;
+
+	/**
+	 * Org to write metrics to. InfluxDB v2 only.
+	 */
+	private String org;
+
+	/**
+	 * Bucket for metrics. Use either the bucket name or ID. Defaults to the value of the
+	 * db property if not set. InfluxDB v2 only.
+	 */
+	private String bucket;
+
+	/**
+	 * Authentication token to use with calls to the InfluxDB backend. For InfluxDB v1,
+	 * the Bearer scheme is used. For v2, the Token scheme is used.
+	 */
+	private String token;
+
 	public String getDb() {
 		return this.db;
 	}
@@ -181,4 +205,36 @@ public class InfluxProperties extends StepRegistryProperties {
 		this.autoCreateDb = autoCreateDb;
 	}
 
+	public InfluxApiVersion getApiVersion() {
+		return this.apiVersion;
+	}
+
+	public void setApiVersion(InfluxApiVersion apiVersion) {
+		this.apiVersion = apiVersion;
+	}
+
+	public String getOrg() {
+		return this.org;
+	}
+
+	public void setOrg(String org) {
+		this.org = org;
+	}
+
+	public String getBucket() {
+		return this.bucket;
+	}
+
+	public void setBucket(String bucket) {
+		this.bucket = bucket;
+	}
+
+	public String getToken() {
+		return this.token;
+	}
+
+	public void setToken(String token) {
+		this.token = token;
+	}
+
 }

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

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.actuate.autoconfigure.metrics.export.influx;
 
+import io.micrometer.influx.InfluxApiVersion;
 import io.micrometer.influx.InfluxConfig;
 import io.micrometer.influx.InfluxConsistency;
 
@@ -94,4 +95,24 @@ class InfluxPropertiesConfigAdapter extends StepRegistryPropertiesConfigAdapter<
 		return get(InfluxProperties::isAutoCreateDb, InfluxConfig.super::autoCreateDb);
 	}
 
+	@Override
+	public InfluxApiVersion apiVersion() {
+		return get(InfluxProperties::getApiVersion, InfluxConfig.super::apiVersion);
+	}
+
+	@Override
+	public String org() {
+		return get(InfluxProperties::getOrg, InfluxConfig.super::org);
+	}
+
+	@Override
+	public String bucket() {
+		return get(InfluxProperties::getBucket, InfluxConfig.super::bucket);
+	}
+
+	@Override
+	public String token() {
+		return get(InfluxProperties::getToken, InfluxConfig.super::token);
+	}
+
 }

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

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2012-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.actuate.autoconfigure.metrics.export.influx;
+
+import io.micrometer.influx.InfluxApiVersion;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link InfluxPropertiesConfigAdapter}.
+ *
+ * @author Stephane Nicoll
+ */
+class InfluxPropertiesConfigAdapterTests {
+
+	@Test
+	void adaptInfluxV1BasicConfig() {
+		InfluxProperties properties = new InfluxProperties();
+		properties.setDb("test-db");
+		properties.setUri("https://influx.example.com:8086");
+		properties.setUserName("user");
+		properties.setPassword("secret");
+		InfluxPropertiesConfigAdapter adapter = new InfluxPropertiesConfigAdapter(properties);
+		assertThat(adapter.apiVersion()).isEqualTo(InfluxApiVersion.V1);
+		assertThat(adapter.db()).isEqualTo("test-db");
+		assertThat(adapter.uri()).isEqualTo("https://influx.example.com:8086");
+		assertThat(adapter.userName()).isEqualTo("user");
+		assertThat(adapter.password()).isEqualTo("secret");
+	}
+
+	@Test
+	void adaptInfluxV2BasicConfig() {
+		InfluxProperties properties = new InfluxProperties();
+		properties.setOrg("test-org");
+		properties.setBucket("test-bucket");
+		properties.setUri("https://influx.example.com:8086");
+		properties.setToken("token");
+		InfluxPropertiesConfigAdapter adapter = new InfluxPropertiesConfigAdapter(properties);
+		assertThat(adapter.apiVersion()).isEqualTo(InfluxApiVersion.V2);
+		assertThat(adapter.org()).isEqualTo("test-org");
+		assertThat(adapter.bucket()).isEqualTo("test-bucket");
+		assertThat(adapter.uri()).isEqualTo("https://influx.example.com:8086");
+		assertThat(adapter.token()).isEqualTo("token");
+	}
+
+}

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

@@ -46,6 +46,8 @@ class InfluxPropertiesTests extends StepRegistryPropertiesTests {
 		assertThat(properties.getUri()).isEqualTo(config.uri());
 		assertThat(properties.isCompressed()).isEqualTo(config.compressed());
 		assertThat(properties.isAutoCreateDb()).isEqualTo(config.autoCreateDb());
+		assertThat(properties.getOrg()).isEqualTo(config.org());
+		assertThat(properties.getToken()).isEqualTo(config.token());
 	}
 
 }

spring-boot-project/spring-boot-docs/src/docs/asciidoc/production-ready-features.adoc

@@ -1833,7 +1833,8 @@ You should also configure one or more tags to identify the data source to which
 
 [[production-ready-metrics-export-influx]]
 ==== Influx
-By default, metrics are exported to {micrometer-registry-docs}/influx[Influx] running on your local machine.
+By default, metrics are exported to an {micrometer-registry-docs}/influx[Influx] v1 instance running on your local machine with the default configuration.
+To export metrics to InfluxDB v2, configure the `org`, `bucket`, and authentication `token` for writing metrics.
 The location of the https://www.influxdata.com[Influx server] to use can be provided using:
 
 [source,yaml,indent=0,configprops,configblocks]