This project show how to activate tracing with SpringBoot 3.X and Opentelemetry.

Spring Cloud Sleuth is deprecated in Spring Boot 3.X, use now Micrometer tracing.

• otel-collector: docker-compose with opentelemetry-collector and, Jaeger and Zipkin for backend query
• spring-tracing-zipkin: Project with micrometer-tracing-bridge-brave and zipkin reporter
• spring-tracing-otel: Project with micrometer-tracing-bridge-otel and opentelemetry-exporter-zipkin
• spring-tracing-opentelemetry: Project with only OpenTelemetry

• Start docker-compose otel-collector
• Start application spring-tracing-zipkin or spring-tracing-otel or spring-tracing-opentelemetry
• Use call-resource-api.sh to make an api call
• Go to Jaeger Backend or Zipkin backend to see result

https://spring.io/blog/2022/10/12/observability-with-spring-boot-3

https://docs.spring.io/spring-boot/docs/current/reference/html/application-properties.html#appendix.application-properties.actuator

https://github.com/open-telemetry/opentelemetry-java-instrumentation/tree/main/instrumentation/spring