Open Telemetry Setup

Add the following dependencies into your application:

pom.xml
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-opentelemetry</artifactId>
</dependency>
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-otlp</artifactId>
</dependency>

And update configuration:

application.yaml
spring:
  application:
    name: <name of service>

management:
  tracing:
    sampling:
      probability: 1
  opentelemetry:
    tracing:
      export:
        otlp:
          endpoint: http://<my-endpoint>:4318/v1/traces

In Spring app, disable the 'metric' export (we are currently only using 'traces') in a suitable @Configuration, for example AppManifest:

AppManifest.java
@Bean
OtlpConfig otlpConfig() {
    return new OtlpConfig() {
        @Override public @Nullable String get(final String key) { return null;}
        @Override public boolean enabled() { return false; }
    };
}

Run up Jaeger as a telemetry collector:

+

Docker - one of many options is to use Jaeger as telemetry collector
docker run -d --name jaeger \
-p 16686:16686 \
-p 4317:4317 \
-p 4318:4318 \
-p 5778:5778 \
-p 9411:9411 \
cr.jaegertracing.io/jaegertracing/jaeger

This will expose Jaeger’s UI at http://<my-endpoint>:16686

Open Telemetry Usage