Minimal setup for using otel logback appender with java agent

[masonedmison]

I am using the OTEL logback appender in my project alongside the OTEL java agent.

I have the following logback configuration:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
                <encoder>
                    <pattern>%date{MM/dd HH:mm:ss} %-5level %logger{1} - %msg%n%replace(%xException){'\n',' | '}%nopex</pattern>
                </encoder>
        <target>System.out</target>
    </appender>

    <appender name="OpenTelemetry" class="io.opentelemetry.instrumentation.logback.appender.v1_0.OpenTelemetryAppender">
      <captureExperimentalAttributes>true</captureExperimentalAttributes>
      <numLogsCapturedBeforeOtelInstall>500</numLogsCapturedBeforeOtelInstall>
    </appender>

    <logger name="com.whbettingengine.metrics.OtelSportsCatalogLogRecordPublisher" additivity="false">
        <level value="INFO"/>
        <appender-ref ref="OpenTelemetry"/>
    </logger>


    <root level="${LOG_LEVEL:-INFO}">
        <appender-ref ref="CONSOLE"/>
    </root>

</configuration>

To make it such that not all logs are exported, I'm setting OTEL_INSTRUMENTATION_LOGBACK_APPENDER_ENABLED: "false".

With this configuration, logs are not exported (I would expect the logs from OtelSportsCatalogLogRecordPublisher to be exported). Is there something else I must do?

Note: this discussion is similar, but I am following what's described in the answer and it is not working for me.

[masonedmison]

It turns out I needed to manually register the GlobalOpenTelemetry instance to the OTEL appender:

  OpenTelemetryAppender.install(GlobalOpenTelemetry.get())

as part of configuring the application.