Basic info

We use Apache JMeter for testing: http://jmeter.apache.org

By running multiple instances of JMeter as server in multiple machines we can generate as much load as we need.

Create testing server

JMeter master and slave communicate as shown in the below picture.

Install Ubuntu Server 16.04 LTS and open ports 1099, 50000, 60000

SSH into server and run

sudo apt-get update
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
sudo apt-add-repository 'deb https://apt.dockerproject.org/repo ubuntu-xenial main'
sudo apt-get update
apt-cache policy docker-engine
sudo apt-get install -y docker-engine
sudo systemctl status docker

Run tests on a one server

Launch slaves

sudo docker run -dit --name slave01 thothbot/jmeter-slave /bin/bash
sudo docker run -dit --name slave02 thothbot/jmeter-slave /bin/bash
sudo docker run -dit --name slave03 thothbot/jmeter-slave /bin/bash

Launch master

sudo docker run -dit --name master thothbot/jmeter-master /bin/bash

See all the running containers and ports opened

sudo docker ps -a

Get the list of ip addresses for these containers

sudo docker inspect --format '{{ .Name }} => {{ .NetworkSettings.IPAddress }}' $(sudo docker ps -a -q)

Run tests

Copy the test into my JMeter master container:

sudo docker exec -i master sh -c 'cat > /opt/jmeter/bin/docker-test.jmx' < docker-test.jmx

Go inside the container with the below command and we can see if the file has been copied successfully:

sudo docker exec -it master /bin/bash

Lets run the test in master to see if it works fine [not in distributed mode]:

./jmeter -n -t test.jmx

Lets run our test in distributed using docker containers. We just need to append -R[slave01,slave02,slave03]:

./jmeter -n -t test.jmx -R172.17.0.2,172.17.0.3,172.17.0.4

Run distributes tests

Launch slaves

sudo docker run -dit -e LOCALIP='52.10.0.2' -p 1099:1099 -p 50000:50000 thothbot/jmeter-slave /bin/bash
sudo docker run -dit -e LOCALIP='52.10.0.3' -p 1099:1099 -p 50000:50000 thothbot/jmeter-slave /bin/bash
sudo docker run -dit -e LOCALIP='52.10.0.4' -p 1099:1099 -p 50000:50000 thothbot/jmeter-slave /bin/bash

Launch master

sudo docker run -dit --name master -p 60000:60000 thothbot/jmeter-master /bin/bash

Run tests

./jmeter -n -t docker-test.jmx -Djava.rmi.server.hostname=52.10.0.1 -Dclient.rmi.localport=60000 -R52.10.0.2,52.10.0.3