Deployment

There are two options for starting your deployment using Docker:

Create Your Own Image

You can use the ASP.NET sample application from Microsoft and a Dockerfile to build your own image and get started:

  1. Download the binaries.
  2. Update the Dockerfile variables to configure the connection to the Controller and your application identity in AppDynamics.
  3. Create the Docker image.

This is an example Dockerfile with commented instructions:

FROM mcr.microsoft.com/dotnet/core/samples:aspnetapp
####### Requirements
# Have the following files alongside the Dockerfile:
# * libappdprofiler.so
# * AppDynamics.Agent.netstandard.dll
####### Instructions
# Building image: docker build --rm -t appdynamicstest:latest .
# Running container: docker run --rm -p 8000:80 appdynamicstest:latest
# Open the application using http://localhost:8000/
# Copy agent binaries to the image from current folder
RUN mkdir -p /opt/appdynamics/dotnet
ADD libappdprofiler.so /opt/appdynamics/dotnet/
ADD libappdprofiler_glibc.so /opt/appdynamics/dotnet/
ADD libappdprofiler_musl.so /opt/appdynamics/dotnet/
ADD AppDynamics.Agent.netstandard.dll /opt/appdynamics/dotnet/
# Mandatory settings required to attach the agent to the .NET application
ENV CORECLR_PROFILER={57e1aa68-2229-41aa-9931-a6e93bbc64d8} \
CORECLR_ENABLE_PROFILING=1 \
CORECLR_PROFILER_PATH=/opt/appdynamics/dotnet/libappdprofiler.so
# Configure connection to the controller
ENV APPDYNAMICS_CONTROLLER_HOST_NAME=controller.saas.appdynamics.com
ENV APPDYNAMICS_CONTROLLER_PORT=443
ENV APPDYNAMICS_CONTROLLER_SSL_ENABLED=true
ENV APPDYNAMICS_AGENT_ACCOUNT_NAME=account-name
ENV APPDYNAMICS_AGENT_ACCOUNT_ACCESS_KEY=access-key
# Configure application identity in AppDynamics
ENV APPDYNAMICS_AGENT_APPLICATION_NAME="My Application"
ENV APPDYNAMICS_AGENT_TIER_NAME="Sample Tier"
ENV APPDYNAMICS_AGENT_REUSE_NODE_NAME=true
ENV APPDYNAMICS_AGENT_REUSE_NODE_NAME_PREFIX="Instance"
# It is possible to configure .NET agent using AppDynamicsConfig.json configuration file instead of environment variables
# ADD AppDynamicsConfig.json /opt/appdynamics/dotnet/
Warning: Alpine OS:

Applications running on Alpine require an additional mandatory environment variable, LD_LIBRARY_PATH, such as ENV LD_LIBRARY_PATH=/opt/appdynamics/ dotnet.

Run an Existing Image

You can run an existing image with an agent enabled. This is the simplest way to start because it does not require building a new image:

  1. Download the aforementioned binaries.
  2. Update the Docker command variables to configure the connection to the Controller and your application identity in AppDynamics.

  3. Run the command in the desired folder where you extracted the agent binaries from the zip file.You can replace $(pwd) in the command with this folder.

This example runs the sample application. It assumes you have Splunk AppDynamics binaries in the current directory:

Example command to run existing image with .NET agent enabled
docker run \
-p 8000:80 \
-e CORECLR_PROFILER={57e1aa68-2229-41aa-9931-a6e93bbc64d8} \
-e CORECLR_ENABLE_PROFILING=1 \
-e CORECLR_PROFILER_PATH=/opt/appdynamics/dotnet/libappdprofiler.so \
-e APPDYNAMICS_CONTROLLER_HOST_NAME=controller.saas.appdynamics.com \
-e APPDYNAMICS_CONTROLLER_PORT=443 \
-e APPDYNAMICS_CONTROLLER_SSL_ENABLED=true \
-e APPDYNAMICS_AGENT_ACCOUNT_NAME=account-name \
-e APPDYNAMICS_AGENT_ACCOUNT_ACCESS_KEY=access-key \
-e APPDYNAMICS_AGENT_APPLICATION_NAME="My Application" \
-e APPDYNAMICS_AGENT_TIER_NAME="Sample Tier" \
-e APPDYNAMICS_AGENT_REUSE_NODE_NAME=true \
-e APPDYNAMICS_AGENT_REUSE_NODE_NAME_PREFIX="Instance" \
-v "$(pwd)":/opt/appdynamics/dotnet/ \
mcr.microsoft.com/dotnet/core/samples:aspnetapp
Warning: On Alpine OS

Applications running on Alpine require an additional mandatory environment variable, LD_LIBRARY_PATH, such as -e LD_LIBRARY_PATH=/opt/appdynamics/ dotnet \

The command mounts agent files as a volume and sets environment variables required for the agent to attach.