Over time your Selenium Grid might become unstable due to browsers not being closed properly, browser error popups and so on. This blogpost will cover the creation of a disposable Selenium Grid. Since the introduction of Docker the creation of containers (a kind of virtual machine) became a lot easier. With Docker-compose you can even describe your multi-container setup in a recipe-style providing step-by-step procedures.
- Install Docker (https://docs.docker.com/compose/install/)
- Put the file below somewhere
- Run the following command:
docker-compose up
Getting the Selenium Grid Address
Use the following command to get retrieve the IP-address of your Docker container: docker-machine ip
In your script you can use http://[IP]:4444/wd/hub in order to connect to your Selenium Grid.
Scaling you Selenium Grid
With the following command you can easily scale up/down your Selenium Grid
docker-compose scale chromenode=15 firefoxnode=15
Filename: docker-compose.yml
seleniumhub:
image: selenium/hub:latest
ports:
- 4444:4444
environment:
- GRID_MAX_SESSION=50
firefoxdebug:
image: selenium/node-firefox-debug:latest
environment:
SCREEN_WIDTH: 2880
SCREEN_HEIGHT: 1800
ports:
- 5900
links:
- seleniumhub:hub
firefoxnode:
image: selenium/node-firefox:latest
environment:
SCREEN_WIDTH: 2880
SCREEN_HEIGHT: 1800
links:
- seleniumhub:hub
chromenode:
image: selenium/node-chrome:latest
environment:
SCREEN_WIDTH: 2880
SCREEN_HEIGHT: 1800
links:
- seleniumhub:hub
RT @TheWebTester: Disposable Selenium Grid: Over time your Selenium Grid might become unstable due to browsers not being cl… https://t.co…
RT @TheWebTester: Disposable Selenium Grid: Over time your Selenium Grid might become unstable due to browsers not being cl… https://t.co…