Aditya Garg delivered a session on "Launching Selenium Grid and Running tests using docker compose and maven – step by step demo" at #SeleniumSummit21 Aditya has over 25 years of IT experience and has been a test architect and principal consultant. Aditya is an Agile and DevOps coach and loves taking test automation and DevOps solutioning work. He is a ServiceNow enthusiast and loves everything about the tool. To know more about #SeleniumSummit21 please check : https://seleniumsummit21.agiletestingalliance.org/

1. ADITYA GARG
LAUNCHING SELENIUM GRID AND
RUNNING TESTS USING DOCKER
COMPOSE AND MAVEN – STEP BY
STEP DEMO
@adigindia
https://www.linkedin.com/in/adigarg/

2. Launching Selenium
Grid and Running tests
using docker compose
and maven – step by
step demo

3. 1.Selenium Grid
2.Docker and docker
compose
3.Maven and docker
compose
Three
main
things
will get
covere
d

4. Aditya Session
ⓘ Start presenting to display the poll results on this slide.

5. LITTLE
BACKGROUND
ON GRID

6. LITTLE BACKGROUND ON GRID
java -jar selenium-server-standalone-3.141.59.jar -role hub
java -Dwebdriver.chrome.driver=chromedriver.exe -jar selenium-server-
standalone-3.141.59.jar -role node -hub
http://192.168.0.114:4444/grid/register/ -port 5555 -browser
browserName="chrome",version=ANY,platform=WIN10,maxInstances=5
It can get cumbersome
Have you
used
some of
these
command
s and
tried
creating a
Grid ?

7. STEPS THAT I WILL TRY TO DEMO
1
Launching simple Chrome Debug Selenium Grid, Running and Viewing
Tests
2 Launching simple Firefox Debug Selenium Grid, Running and Viewing
Tests
3 Using Docker-compose creating grid and running the tests
4 Running tests using Maven Plugin for docker-compose on the fly grid creation
and destruction

8. I am using an Ubuntu 16.04.6 VM
on a cloud with the following
setup.
- JDK 1.8
- Maven
- Docker
164.52.193.131

9. Selenium Test that I am going to use is
simple
1. Visit SeleniumSummit21 site
2. Wait for the title to have
#SeleniumSummit21
3. Go to speaker page
4. Get all the names of the speakers

10. Demo 0 – Normal Selenium Test

11. Launching simple Chrome Debug
Selenium Grid, Running and
Viewing Tests
1

12. Demo 1 – Creating a Chrome Debug Grid and
running the test on that Grid, viewing from
VNC Server

13. REFERENCE 1
https://github.com/SeleniumHQ/docker-
selenium#debugging
docker run -d -p 4444:4444 -p 5900:5900
-v /dev/shm:/dev/shm
selenium/standalone-chrome:4.0.0-beta-
1-prerelease-20210204
Running Chrome
Stand alone
Debug Grid
(single hub/node)
– testing
purposes
164.52.193.131:4444

15. client
RemoteWebDriver
http://<ipAddress>:<port>/wd/hub
WebDriver driver;
ChromeDriver FirefoxDriver
Schemat
ic used

16. 2
Launching simple Firefox Debug
Selenium Grid, Running and
Viewing Tests

17. Demo 2 – Creating a Firefox Debug Grid and
running the test on that Grid, viewing from
VNC Server

18. docker run -d -p 4445:4444 -p
5901:5900 -v /dev/shm:/dev/shm
selenium/standalone-firefox:4.0.0-
beta-1-prerelease-20210204
Running Firefox
Stand alone
Debug Grid
(single hub/node)
– testing
purposes
164.52.193.131:4445 docker ps -a

19. 3
Using Docker-compose creating
grid and running the tests

20. Installing docker compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.28.2/docker-compose-$(uname -s)-
$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version
Reference2 :

21. version: "3"
services:
hub:
image: selenium/hub
ports:
- "4446:4444"
chrome1:
image: selenium/node-chrome
depends_on:
- hub
environment:
- HUB_HOST=hub
chrome2:
image: selenium/node-chrome
depends_on:
- hub
environment:
- HUB_HOST=hub
docker-compose.yaml
Image reference: https://www.qekafe.com/selenium-grid-formation-using-
docker-compose up -d

22. docker-compose scale <service name> = <no of instances>
docker-compose scale chrome2 = 3
docker-compose up --scale chrome2=3 -d
Scaling nodes at run time

23. Demo 3 – Running tests on the selenium grid
created using docker-compose.yaml file

24. 4
Running tests using Maven
Plugin for docker-compose : on
the fly grid creation and
destruction while running the
tests

25. Reference:
https://github.com/dkanejs/docker-
compose-maven-plugin
<dependency>
<groupId>com.dkanejs.maven.plugins</gro
upId>
<artifactId>docker-compose-maven-
plugin</artifactId>
<version>$VERSION</version>
</dependency>
<plugin>
<groupId>com.dkanejs.maven.plugins</groupId>
<artifactId>docker-compose-maven-plugin</artifactId>
<version>2.5.1</version>
<executions>
<execution>
<id>pull</id>
<phase>validate</phase>
<goals>
<goal>pull</goal>
</goals>
<configuration>
<composeFile>${project.basedir}/docker-compose.yaml</composeFile>
<ignorePullFailures>true</ignorePullFailures>
</configuration>
</execution>
<execution>
<id>up</id>
<phase>validate</phase>
<goals>
<goal>up</goal>
</goals>
<configuration>
<composeFile>${project.basedir}/docker-compose.yaml</composeFile>
<detachedMode>true</detachedMode>
</configuration>
</execution>
<execution>
<id>down</id>
<phase>test</phase>
<goals>
<goal>down</goal>
</goals>
<configuration>
<composeFile>${project.basedir}/docker-compose.yaml</composeFile>
<removeVolumes>true</removeVolumes>
</configuration>
</execution>
</executions>
</plugin>

26. Demo 4 – Running tests on the selenium grid
created using docker-compose.yaml file, on the fly
by maven plugin.
This can now be part of any CI tool
Create and execute grids on demand..

27. SUMMARY
1
Launching simple Chrome Debug Selenium Grid, Running and Viewing
Tests
2 Launching simple Firefox Debug Selenium Grid, Running and Viewing
Tests
3 Using Docker-compose creating grid and running the tests
4 Running tests using Maven Plugin for docker-compose on the fly grid creation
and destruction

28. QUESTIONS ?
• @adigindia
• https://www.linkedin.c
om/in/adigarg/