Out of the box instrumentation

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>
                %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
            </pattern>
        </encoder>
    </appender>
    <appender name="OpenTelemetry"
        class="io.opentelemetry.instrumentation.logback.appender.v1_0.OpenTelemetryAppender">
        <captureExperimentalAttributes>false</captureExperimentalAttributes>
        <captureCodeAttributes>true</captureCodeAttributes>
        <captureMarkerAttribute>true</captureMarkerAttribute>
        <captureKeyValuePairAttributes>true</captureKeyValuePairAttributes>
        <captureLoggerContext>true</captureLoggerContext>
        <captureMdcAttributes>*</captureMdcAttributes>
    </appender>
    <root level="INFO">
        <appender-ref ref="console"/>
        <appender-ref ref="OpenTelemetry"/>
    </root>
</configuration>

package otel;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class RestTemplateConfig {

  @Bean
  public RestTemplate restTemplate() {
    return new RestTemplate();
  }
}

package otel;

import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
public class RestTemplateController {

  private final RestTemplate restTemplate;

  public RestTemplateController(RestTemplateBuilder restTemplateBuilder) {
    restTemplate = restTemplateBuilder.rootUri("http://localhost:8080").build();
  }
}

package otel;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestClient;

@Configuration
public class RestClientConfig {

  @Bean
  public RestClient restClient() {
    return RestClient.create();
  }
}

package otel;

import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestClient;

@RestController
public class RestClientController {

  private final RestClient restClient;

  public RestClientController(RestClient.Builder restClientBuilder) {
    restClient = restClientBuilder.baseUrl("http://localhost:8080").build();
  }
}

package otel;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.reactive.function.client.WebClient;

@Configuration
public class WebClientConfig {

  @Bean
  public WebClient webClient() {
    return WebClient.create();
  }
}

package otel;

import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.reactive.function.client.WebClient;

@RestController
public class WebClientController {

  private final WebClient webClient;

  public WebClientController(WebClient.Builder webClientBuilder) {
    webClient = webClientBuilder.baseUrl("http://localhost:8080").build();
  }
}