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Sumo Logic

Custom tags configuration

Custom tags configuration via startup parameter

You can use OTEL_RESOURCE_ATTRIBUTES= startup parameter to pass a custom static tag to all spans generated in the service. For example:

OTEL_RESOURCE_ATTRIBUTES="service.name=Accounts"

OTEL_RESOURCE_ATTRIBUTES="application=OnlineBanking"

Custom tags configuration through your code

If the default tags are not providing enough relevant data you can add custom tags or attributes into spans. Follow these steps:

Step 1 - Satisfy project dependencies - add opentelemetry-sdk library
  • Maven projects

<!-- https://mvnrepository.com/artifact/io.opentelemetry/opentelemetry-sdk -->
<dependency>
    <groupId>io.opentelemetry</groupId>
    <artifactId>opentelemetry-sdk</artifactId>
    <version>0.10.0</version>
</dependency>

  • Gradle projects

dependencies {
 compile 'io.opentelemetry:opentelemetry-sdk:0.10.0'
}

Step 2 - Import dependencies in the application Java class file

import io.opentelemetry.api.trace.Span;

Step 3 - Add custom tag into Span

Span currentSpan = Span.current();
currentSpan.setAttribute("foo","bar");