Enabling App and API Protection for Google Cloud Run functions in .NET

Docs > Datadog Security > App and API Protection > Enabling App and API Protection > Setup App and API Protection on Google Cloud Run functions > Enabling App and API Protection for Google Cloud Run functions in .NET

AAP support for Google Cloud Run is in Preview.

How it works

The serverless-init application wraps your process and executes it as a subprocess. It starts a DogStatsD listener for metrics and a Trace Agent listener for traces. It collects logs by wrapping the stdout/stderr streams of your application. After bootstrapping, serverless-init then launches your command as a subprocess.

To get full instrumentation, ensure you are calling datadog-init as the first command that runs inside your Docker container. You can do this by setting it as the entrypoint, or by setting it as the first argument in CMD.

Compatibility

Google Cloud Run support for App and API Protection serverless is in Preview.

Note: Threat Protection through Remote Configuration is not supported. Use Workflows to block IPs in your WAF.

Get started

Add the following instructions and arguments to your Dockerfile.

COPY --from=datadog/serverless-init:1 /datadog-init /app/datadog-init
# For arm64 use datadog-dotnet-apm-2.57.0.arm64.tar.gz
# For alpine use datadog-dotnet-apm-2.57.0-musl.tar.gz
ARG TRACER_VERSION
ADD https://github.com/DataDog/dd-trace-dotnet/releases/download/v${TRACER_VERSION}/datadog-dotnet-apm-${TRACER_VERSION}.tar.gz /tmp/datadog-dotnet-apm.tar.gz
RUN mkdir -p /dd_tracer/dotnet/ && tar -xzvf /tmp/datadog-dotnet-apm.tar.gz -C /dd_tracer/dotnet/ && rm /tmp/datadog-dotnet-apm.tar.gz
ENV DD_SERVICE=datadog-demo-run-dotnet
ENV DD_ENV=datadog-demo
ENV DD_VERSION=1
ENV DD_APPSEC_ENABLED=1
ENTRYPOINT ["/app/datadog-init"]
CMD ["dotnet", "helloworld.dll"]

Explanation

Copy the Datadog serverless-init into your Docker image.

COPY --from=datadog/serverless-init:1 /datadog-init /app/datadog-init

Copy the Datadog .NET tracer into your Docker image.

# For arm64 use datadog-dotnet-apm-2.57.0.arm64.tar.gz
# For alpine use datadog-dotnet-apm-2.57.0-musl.tar.gz
ARG TRACER_VERSION
ADD https://github.com/DataDog/dd-trace-dotnet/releases/download/v${TRACER_VERSION}/datadog-dotnet-apm-${TRACER_VERSION}.tar.gz /tmp/datadog-dotnet-apm.tar.gz

RUN mkdir -p /dd_tracer/dotnet/ && tar -xzvf /tmp/datadog-dotnet-apm.tar.gz -C /dd_tracer/dotnet/ && rm /tmp/datadog-dotnet-apm.tar.gz

If you install the Datadog tracer library directly in your application, as outlined in the manual tracer instrumentation instructions, omit this step.

(Optional) Add Datadog tags.

ENV DD_SERVICE=datadog-demo-run-dotnet
ENV DD_ENV=datadog-demo
ENV DD_VERSION=1
ENV DD_APPSEC_ENABLED=1

Change the entrypoint to wrap your application in the Datadog serverless-init process. Note: If you already have an entrypoint defined inside your Dockerfile, see the alternative configuration.
```
ENTRYPOINT ["/app/datadog-init"]
```
Execute your binary application wrapped in the entrypoint. Adapt this line to your needs.
```
CMD ["dotnet", "helloworld.dll"]
```

Alternative configuration

If you already have an entrypoint defined inside your Dockerfile, you can instead modify the CMD argument.

COPY --from=datadog/serverless-init:1 /datadog-init /app/datadog-init
# For arm64 use datadog-dotnet-apm-2.57.0.arm64.tar.gz
# For alpine use datadog-dotnet-apm-2.57.0-musl.tar.gz
ARG TRACER_VERSION
ADD https://github.com/DataDog/dd-trace-dotnet/releases/download/v${TRACER_VERSION}/datadog-dotnet-apm-${TRACER_VERSION}.tar.gz /tmp/datadog-dotnet-apm.tar.gz
RUN mkdir -p /dd_tracer/dotnet/ && tar -xzvf /tmp/datadog-dotnet-apm.tar.gz -C /dd_tracer/dotnet/ && rm /tmp/datadog-dotnet-apm.tar.gz
ENV DD_SERVICE=datadog-demo-run-dotnet
ENV DD_ENV=datadog-demo
ENV DD_VERSION=1
ENV DD_APPSEC_ENABLED=1
CMD ["/app/datadog-init", "dotnet", "helloworld.dll"]

If you require your entrypoint to be instrumented as well, you can swap your entrypoint and CMD arguments instead. For more information, see How serverless-init works.

COPY --from=datadog/serverless-init:1 /datadog-init /app/datadog-init
# For arm64 use datadog-dotnet-apm-2.57.0.arm64.tar.gz
# For alpine use datadog-dotnet-apm-2.57.0-musl.tar.gz
ARG TRACER_VERSION
ADD https://github.com/DataDog/dd-trace-dotnet/releases/download/v${TRACER_VERSION}/datadog-dotnet-apm-${TRACER_VERSION}.tar.gz /tmp/datadog-dotnet-apm.tar.gz
RUN mkdir -p /dd_tracer/dotnet/ && tar -xzvf /tmp/datadog-dotnet-apm.tar.gz -C /dd_tracer/dotnet/ && rm /tmp/datadog-dotnet-apm.tar.gz
ENV DD_SERVICE=datadog-demo-run-dotnet
ENV DD_ENV=datadog-demo
ENV DD_VERSION=1
ENV DD_APPSEC_ENABLED=1
ENTRYPOINT ["/app/datadog-init"]
CMD ["your_entrypoint.sh", "dotnet", "helloworld.dll"]