Setup OneAgent on Containers (.NET 8)

jacoblom — Mon, 25 Mar 2024 08:49:09 GMT

Hi there,

I'm trying to following the following: Set up OneAgent on containers for application-only monitoring

# The aspnet version to use (8.0) ARG VERSION=8.0 FROM <PRIVATE-CONTAINER-REGISTRY>/aspnet-core:$VERSION AS aspnet_core EXPOSE 8080 EXPOSE 8081 USER dotnet FROM aspnet_core AS release #ENV DT_HOME=/opt/dynatrace/oneagent COPY --from=<DT_TENANT>.live.dynatrace.com/linux/oneagent-codemodules:dotnet / / WORKDIR /app ENV LD_PRELOAD /opt/dynatrace/oneagent/agent/lib64/liboneagentproc.so COPY ./app . USER dotnet ENTRYPOINT [ "/opt/dynatrace/oneagent/dynatrace-agent64.sh" ] CMD [ "dotnet", "DTImage.dll" ]

When I build and run the docker image, the only output I'm seeing is:

2024-03-24 17:57:41 Info: Using DT_HOME: /opt/dynatrace/oneagent

If I comment ENTRYPOINT [ "/opt/dynatrace/oneagent/dynatrace-agent64.sh" ] and ENV LD_PRELOAD /opt/dynatrace/oneagent/agent/lib64/liboneagentproc.so, all works fine.

It's a very simple app (default weather forecast)

I'm expecting the same behaviour when doing the setting the entrypoint to the dynatrace-agent64.sh, as well as setting the LD_PRELOAD ENV

Are there any known issues, or, can someone suggest something I should do differently?

Thank you,

Re: Setup OneAgent on Containers

jacoblom — Sun, 24 Mar 2024 17:10:29 GMT

Seems like the issue is only prevalent to .NET 8.

All works fine for .NET 6

Unless there's someone that can advise otherwise?

Regards

Re: Setup OneAgent on Containers (.NET 8)

mgotaquestion — Thu, 05 Sep 2024 19:34:17 GMT

Hi, Any updates on your issue?

Re: Setup OneAgent on Containers (.NET 8)

jacoblom — Thu, 05 Sep 2024 20:56:06 GMT

We noticed that removing the ENV COMPlus_EnableDiagnostics=0 from the Dockerfile, fixed the problem.

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Setup OneAgent on Containers (.NET 8)

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Re: Setup OneAgent on Containers (.NET 8)

Re: Setup OneAgent on Containers (.NET 8)