Install .NET agent on Docker container

This document provides some samples for how you can configure a Dockerfile to install the New Relic .NET agent. Examples are included for both Windows and Linux containers.

Installing the .NET agent in a Docker container can be performed using the same procedures as a standard .NET agent install for either Windows or Linux. It's just a matter of configuring your Dockerfile to perform the procedure.

Overview for install of .NET agent on Docker

Requirements include:

• The agent must be installed on the containers you want to monitor.
• Install the agent with one of the standard install procedures.
• Enable the agent by setting the required environment variables as applicable.
• The .NET agent must be installed and enabled at runtime.

Install for Linux Docker containers

Example Linux Dockerfile

FROM microsoft/dotnet:2.2-aspnetcore-runtime

# Publish your application.
COPY your app to be published /app

# Install the agent
RUN apt-get update && apt-get install -y wget ca-certificates gnupg \
&& echo 'deb http://apt.newrelic.com/debian/ newrelic non-free' | tee /etc/apt/sources.list.d/newrelic.list \
&& wget https://download.newrelic.com/548C16BF.gpg \
&& apt-key add 548C16BF.gpg \
&& apt-get update \
&& apt-get install -y newrelic-netcore20-agent

# Enable the agent
ENV CORECLR_ENABLE_PROFILING=1 \
CORECLR_PROFILER={36032161-FFC0-4B61-B559-F6C5D41BAE5A} \
CORECLR_NEWRELIC_HOME=/usr/local/newrelic-netcore20-agent \
CORECLR_PROFILER_PATH=/usr/local/newrelic-netcore20-agent/libNewRelicProfiler.so \
NEW_RELIC_LICENSE_KEY=YOUR_LICENSE_KEY \
NEW_RELIC_APP_NAME=YOUR_APP_NAME

WORKDIR /app

ENTRYPOINT ["dotnet", "./YOUR_APP_NAME.dll"]

Example Linux Multi-stage Dockerfile

FROM microsoft/dotnet:2.2-sdk AS base

# Build your application
WORKDIR /src
RUN dotnet new mvc -o YOUR_APP_NAME
RUN dotnet build -c Release -o /app/ ./YOUR_APP_NAME

FROM microsoft/dotnet:2.2-aspnetcore-runtime AS final

# Install the agent
RUN apt-get update && apt-get install -y wget ca-certificates gnupg \
&& echo 'deb http://apt.newrelic.com/debian/ newrelic non-free' | tee /etc/apt/sources.list.d/newrelic.list \
&& wget https://download.newrelic.com/548C16BF.gpg \
&& apt-key add 548C16BF.gpg \
&& apt-get update \
&& apt-get install -y newrelic-netcore20-agent

# Enable the agent
ENV CORECLR_ENABLE_PROFILING=1 \
CORECLR_PROFILER={36032161-FFC0-4B61-B559-F6C5D41BAE5A} \
CORECLR_NEWRELIC_HOME=/usr/local/newrelic-netcore20-agent \
CORECLR_PROFILER_PATH=/usr/local/newrelic-netcore20-agent/libNewRelicProfiler.so \
NEW_RELIC_LICENSE_KEY=YOUR_LICENSE_KEY \
NEW_RELIC_APP_NAME=YOUR_APP_NAME

WORKDIR /app
COPY --from=base /app .

ENTRYPOINT ["dotnet", "./YOUR_APP_NAME.dll"]

Install for Windows Docker containers

Example Windows Dockerfile for .NET Framework application

FROM microsoft/aspnet

# Publish your application.
COPY your app to be published /inetpub/wwwroot

# Copy the New Relic .NET agent installer
COPY ./NewRelicDotNetAgent_x64.msi /

# Install the agent
RUN powershell.exe Start-Process -Wait -FilePath msiexec -ArgumentList /i,\ 
"C:\NewRelicDotNetAgent_x64.msi",\
/qn,NR_LICENSE_KEY=YOUR_LICENSE_KEY

# Set your application name
ENV NEW_RELIC_APP_NAME=YOUR_APP_NAME

Example Windows Dockerfile for .NET Core application

FROM mcr.microsoft.com/windows/servercore:ltsc2019

# Publish your application.
COPY your app to be published /app

# Copy the New Relic .NET agent installer
COPY ./NewRelicDotNetAgent_x64.msi /

# Install the agent
RUN Start-Process -Wait -FilePath msiexec -ArgumentList /i,
"C:\NewRelicDotNetAgent_x64.msi",
/qn, NR_LICENSE_KEY=YOUR_LICENSE_KEY

# Enable the agent
ENV CORECLR_ENABLE_PROFILING=1

# Set your application name
ENV NEW_RELIC_APP_NAME=YOUR_APP_NAME

# windowsservercore images may not include the .NET Core SDK or runtime
RUN dotnet sdk/runtime installer

WORKDIR /app

ENTRYPOINT ["dotnet", ".\\YOUR_APP_NAME.dll"]

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