Dockerfile

# Build stage
FROM maven:3.8.7-openjdk-18 as build

COPY simple-java /home/app/simple-java
COPY opentelemetry-custom-instrumentation /home/app/opentelemetry-custom-instrumentation

WORKDIR /home/app/simple-java
RUN mvn install

WORKDIR /home/app/opentelemetry-custom-instrumentation
RUN mvn install

# Package stage
FROM maven:3.8.7-openjdk-18
COPY --from=build /home/app/simple-java/target/simple-java-1.0-SNAPSHOT.jar /usr/local/lib/simple-java-1.0-SNAPSHOT.jar
COPY --from=build /home/app/opentelemetry-custom-instrumentation/target/opentelemetry-custom-instrumentation-1.0-SNAPSHOT.jar /usr/local/lib/opentelemetry-custom-instrumentation-1.0-SNAPSHOT.jar

WORKDIR /

RUN curl -L -o opentelemetry-javaagent.jar https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar

COPY start.sh /start.sh
RUN chmod +x /start.sh

ENTRYPOINT ["/start.sh"]