feat: Use Docker ADD to fetch OpenTelemetry Java Agent in Dockerfile

FROM ibm-semeru-runtimes:open-17.0.7_7-jdk

RUN mkdir -p /opt/otel \

 && curl -sSL \

    https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v${OTEL_AGENT_VERSION}/opentelemetry-javaagent.jar \

    -o /opt/otel/opentelemetry-javaagent.jar

ARG OTEL_AGENT_VERSION

# Let Docker pull the agent JAR based on the ARG version

ADD https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/\

v${OTEL_AGENT_VERSION}/opentelemetry-javaagent.jar \

    /opt/otel/opentelemetry-javaagent.jar

# RUN mkdir /opt/shareclasses

RUN mkdir -p /opt/openslice/lib/

COPY target/org.etsi.osl.tmf.api-1.2.0-SNAPSHOT-exec.jar /opt/openslice/lib/

EXPOSE 13082 9464

CMD ["java", \

     "-javaagent:/opt/otel/opentelemetry-javaagent.jar", \

     "-Dotel.metrics.exporter=prometheus", \

     "-Dotel.exporter.prometheus.port=9464", \

     "-Xshareclasses:cacheDir=/opt/shareclasses", \

CMD ["java",

     "-javaagent:/opt/otel/opentelemetry-javaagent.jar",

     "-Dotel.metrics.exporter=prometheus",

     "-Dotel.exporter.prometheus.port=9464",

     "-Xshareclasses:cacheDir=/opt/shareclasses",

     "-jar", "/opt/openslice/lib/org.etsi.osl.tmf.api-1.2.0-SNAPSHOT-exec.jar"]