DDEV selenium

Provide selenium setup with a default chrome node, with possibilities to add more nodes of several browsers.

The main purpose of this addon is allowing developers to have a base setup of selenium that allows to be extendeds with more selenium nodes like chrome, firefox, or edge. Having more nodes attached to the same hub not only allows having several browsers, but load balancing when there are parallel tests being run on the same hub.

Installation

Install this addon by running:

ddev get metadrop/ddev-selenium

Architecture

The addon contains:

• Selenium hub
• Selenium node for chrome

It is possible to add attach additional nodes to the selenium by adding more services to the ddev setup.

How to add more selenium nodes

To add more nodes, create a custom docker-compose yaml with the node services. Those nodes:

• Must be based on docker selenium nodes.
• Must be attached to the hub container through this configuration:

      - SE_EVENT_BUS_HOST=hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443

Example:

  chrome:
    image: selenium/node-chrome:4.8.0
    container_name: ddev-${DDEV_SITENAME}-chrome
    shm_size: 256M
    depends_on:
      - hub
    environment:
      - SE_EVENT_BUS_HOST=hub
      - SE_EVENT_BUS_PUBLISH_PORT=4442
      - SE_EVENT_BUS_SUBSCRIBE_PORT=4443
    labels:
      com.ddev.site-name: ${DDEV_SITENAME}
      com.ddev.approot: ${DDEV_APPROOT}