Add documentation on the OTel Spring Boot starter (#3377)

Co-authored-by: Patrice Chalin <[email protected]>
Co-authored-by: svrnm <[email protected]>

content/en/docs/instrumentation/java/automatic/spring-boot.md

@@ -0,0 +1,58 @@
+---
+title: Spring Boot
+linkTitle: Spring Boot
+weight: 30
+description: Spring instrumentation for OpenTelemetry Java
+cSpell:ignore: autoconfigure springboot
+---
+
+You can use the [OpenTelemetry Java agent](..) with byte code instrumentation to
+automatically instrument a [Spring Boot](https://spring.io/projects/spring-boot)
+application; or you can also use the OpenTelemetry [Spring Boot starter] to
+instrument your application.
+
+[Spring Boot starter]:
+  https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#using.build-systems.starters
+
+The OpenTelemetry starter is compatible with Spring Boot 2.0 and 3.0, and Spring
+native.
+
+## Configuration
+
+Add the dependency given below to enable the OpenTelemetry starter.
+
+The OpenTelemetry starter uses OpenTelemetry Spring Boot [auto-configuration].
+For details concerning supported libraries and features of the OpenTelemetry
+auto-configuration, see the configuration [README].
+
+[auto-configuration]:
+  https://docs.spring.io/spring-boot/docs/current/reference/html/using.html#using.auto-configuration
+[README]:
+  https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/instrumentation/spring/spring-boot-autoconfigure/README.md#features
+
+{{< tabpane text=true >}} {{% tab header="Maven (`pom.xml`)" lang=Maven %}}
+
+```xml
+<dependencies>
+	<dependency>
+		<groupId>io.opentelemetry.instrumentation</groupId>
+		<artifactId>opentelemetry-spring-boot-starter</artifactId>
+		<version>{{% param vers.instrumentation %}}</version>
+	</dependency>
+</dependencies>
+```
+
+{{% /tab %}} {{% tab header="Gradle (`gradle.build`)" lang=Gradle %}}
+
+```groovy
+dependencies {
+	implementation('io.opentelemetry.instrumentation:opentelemetry-spring-boot-starter:{{% param vers.instrumentation %}}')
+}
+```
+
+{{% /tab %}} {{< /tabpane>}}
+
+## Additional instrumentations
+
+You can configure additional instrumentations with
+[OpenTelemetry instrumentations libraries](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/docs/supported-libraries.md#libraries--frameworks).

static/refcache.json

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