Open telemetry java agent instrumentation: missing manifest file

[hkdev27]

I have created a spring boot project jar and running the following command and it works well. Application starts successfully and sends telemetry data to jaeger.

java -javaagent:opentelemetry-javaagent.jar -Dotel.resource.attributes=service.name=test-service -Dotel.traces.exporter=jaeger -Dotel.exporter.jaeger.endpoint=http://localhost:14250 -jar test-service.jar

But it throws exception when trying to run as image.
Dockerfile is as follows:

Variant 1:
FROM openjdk:17-jdk-alpine
ARG JAR_FILE=*.jar
COPY ${JAR_FILE} test-service.jar
CMD ["java","-javaagent:/src/main/resources/opentelemetry-javaagent.jar -Dotel.resource.attributes=service.name=test-service -Dotel.traces.exporter=jaeger -Dotel.exporter.jaeger.endpoint=http://localhost:14250","-jar","/test-service.jar"]

Variant 2:
FROM openjdk:17-jdk-alpine
ARG JAR_FILE=*.jar
COPY ${JAR_FILE} test-service.jar
CMD ["java","-javaagent:opentelemetry-javaagent.jar -Dotel.resource.attributes=service.name=test-service -Dotel.traces.exporter=jaeger -Dotel.exporter.jaeger.endpoint=http://localhost:14250","-jar","/test-service.jar"]

Exception:
Error opening zip file or JAR manifest missing : /src/main/resources/opentelemetry-javaagent.jar -Dotel.resource.attributes
Error occurred during initialization of VM
agent library failed to init: instrument

How can I overcome this issue. Please help.

[iNikem]

You have to put every single command line parameter into quotes:
"-javaagent:/src/main/resources/opentelemetry-javaagent.jar", "-Dotel.resource.attributes=service.name=test-service", "-Dotel.traces.exporter=jaeger", "-Dotel.exporter.jaeger.endpoint=http://localhost:14250"

[mateuszrzeszutek]

Yes, try ADDing or COPYing the agent.
It should not be added to the application classpath - the javaagent is not your "normal" library, it needs to be in a separate jar so that you can pass path to that jar as -javaagent.

[hkdev27]

Variant 1:
FROM openjdk:17-jdk-alpine
COPY test-service.jar test-service.jar
CMD ["java","-Dotel.resource.attributes=service.name=test-service" "-Dotel.traces.exporter=jaeger" "-Dotel.exporter.jaeger.endpoint=http://localhost:14250","-jar","/test-service.jar"]

Exception: /bin/sh: [java,-Dotel.resource.attributes=service.name=test-service: not found

Variant 2:
FROM openjdk:17-jdk-alpine
COPY test-service.jar test-service.jar
COPY opentelemetry-javaagent.jar opentelemetry-javaagent.jar
CMD ["java","-javaagent:opentelemetry-javaagent.jar" "-Dotel.resource.attributes=service.name=test-service" "-Dotel.traces.exporter=jaeger" "-Dotel.exporter.jaeger.endpoint=http://localhost:14250","-jar","/test-service.jar"]

Exception: /bin/sh: [java,-javaagent:opentelemetry-javaagent.jar: not found

[hkdev27]

Is there any other way to add agent as pom dependency or maven plugin. So that it can directly pick it up from lib.

[mateuszrzeszutek]

You're missing commas in a couple of places after the second CMD arg, try

FROM openjdk:17-jdk-alpine
COPY test-service.jar test-service.jar
COPY opentelemetry-javaagent.jar opentelemetry-javaagent.jar
CMD ["java", "-javaagent:opentelemetry-javaagent.jar", "-Dotel.resource.attributes=service.name=test-service", "-Dotel.traces.exporter=jaeger", "-Dotel.exporter.jaeger.endpoint=http://localhost:14250", "-jar", "/test-service.jar"]

[hkdev27]

Thank you guys.