Overview

This is a simple script to send some load traffic using JMeter to the dt-orders app with a configurable loop count and base URL. The JMeter test script is build into the image so there is no need to Docker volumes.

See the overview repo for how to setup the application.

Running

Assuming the dt-orders app is running, start docker with this command and adjust arguments as needed.

NOTE: 172.17.0.1 is a special IP within Docker that refers to the host that is running the Docker image

docker run -it \
    --env HOSTNAME=172.17.0.1 \
    --env SERVER_PORT=80 \
    --env NUM_LOOPS=1000 \
    --env NUM_THREADS=1 \
    --env THINK_TIME=250 \
    --env TEST_SCRIPT="/load.jmx" \
    --env TEST_DEBUG=false \
    --env MONOLITH=true \
    dtdemos/dt-orders-load:1 -d

Use start-load.sh and stop-load.sh as a helper scripts to test the docker image using docker run command

# example override of URL and PORT, run for 10000 loops in detached mode
sudo ./start-load.sh false 172.17.0.1 80 10000

# example override of URL and PORT, run for 1 loops, 1 thread, 250ms thinktime, and foreground DEBUG mode
sudo ./start-load.sh false 44.234.152.110 80 1 1 250 load.jmx true

Development

Prerequisites - This is setup on a mac

• JMeter 5.2.1 or higher
• Docker

brew install jmeter

Develop and Test

• Use the JMeter UI to edit the script.

• Use buildpush.sh to build and push the Docker image

• Use load.sh as a helper script to test the jmeter executable directly

  # example override of URL and PORT, run for 1 loops, 1 thread, 250ms thinktime, and debug ON
  ./load.sh 3.224.9.137 80 1 1 250 load.jmx true
  
  # example override of URL and PORT, run for 1 loops, 1 thread, 250ms thinktime, and debug OFF
  ./load.sh localhost 80 1 1 250 load.jmx false
  

Dynatrace Setup

The script send a custom header with the script information that can be pulled out as Dynatrace request attributes.

You will need to configure these three as show below.

Here is how they look once they are configured.