Docker Selenium Grid Setup

In this tutorial, we will cover how to set up Selenium Grid with Docker and also go over why we should use Selenium Grid. We will also increase max instances and max sessions for the Selenium Grid in Docker to run tests in parallel.

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Selenium Tool Suite - Components and Features

Selenium is an automation testing tool; it is primarily used to test websites and web applications; it is an open-source tool. With the help of Selenium, test cases can run directly in web browsers, just like a person operating the web browsers. It supports many web browsers such as Opera, Safari, Chrome, Firefox, IE, etc. There are several different sub tools to support different automation test approaches. In this article, we will learn about selenium tool suite, its components and features. So let’s start!!!

#selenium tutorials #selenium grid #selenium ide #selenium rc #selenium tool suite #selenium webdriver

Docker Selenium Grid Setup

In this tutorial, we will cover how to set up Selenium Grid with Docker and also go over why we should use Selenium Grid. We will also increase max instances and max sessions for the Selenium Grid in Docker to run tests in parallel.

Why do we need Selenium Grid?

So before we set up Selenium Grid with Docker, let’s first understand why we even need Selenium Grid in the first place?

• Multiple browsers/devices: Grid makes it much easier for us to run tests on multiple browsers/devices
• Test execution time: You can reduce overall test execution time by running tests in parallel in Grid
• Infrastructure: Setting up the infrastructure to run tests on multiple browsers/devices on different OS is also possible to do with the help of Grid

#docker #docker selenium grid

Selenium Grid With Docker Swarm

In this guide, we will talk about setting up a Selenium Grid using Docker Swarm on any of the cloud services like GCP or AWS.

Let’s start with the basics first, i.e. what is Selenium Grid and Docker Swarm.

What is Selenium Grid?

Selenium Grid allows the execution of WebDriver scripts on remote machines (virtual or real) by routing commands sent by the client to remote browser instances. It aims to provide an easy way to run tests in parallel on multiple machines.

Selenium Grid allows us to run tests in parallel on multiple machines, and to manage different browser versions and browser configurations centrally (instead of in each individual test).

Selenium Grid purposes and main functionalities

1. A central entry point for all tests
2. Management and control of the nodes/environment where the browsers run
3. Scaling
4. Running tests in parallel
5. Load balancing

Now a question comes “When to use Grid”?

Generally speaking, there are two reasons why you might want to use Grid.

1. To run your tests against multiple browsers, multiple versions of browsers, and browsers running on different operating systems.
2. To reduce the time it takes for the test suite to complete a test pass.

Grid is used to speed up the execution of a test pass by using multiple machines to run tests in parallel. For example, if you have a suite of 100 tests, but you set up Grid to support 4 different machines (VMs or separate physical machines) to run those tests, your test suite will complete in (roughly) one-fourth the time as it would if you ran your tests sequentially on a single machine.

What is Docker Swarm?

Docker swarm is a container orchestration tool, meaning that it allows the user to manage multiple containers deployed across multiple host machines.

One of the key benefits associated with the operation of a docker swarm is the high level of availability offered for applications. In a docker swarm, there are typically several worker nodes and at least one manager node that is responsible for handling the worker nodes’ resources efficiently and ensuring that the cluster operates efficiently.

What are the two types of Docker Swarm mode services?

Docker Swarm has two types of services: replicated and global.

**Replicated services: **Swarm mode replicated services functions by you specifying the number of replica tasks for the swarm manager to assign to available nodes.

**Global services: **Global services function by using the swam manager to schedule one task to each available node that meets the services constraints and resource requirements.

#docker-swarm #docker #selenium #docker swarm

Docker Explained: Docker Architecture | Docker Registries

Following the second video about Docker basics, in this video, I explain Docker architecture and explain the different building blocks of the docker engine; docker client, API, Docker Daemon. I also explain what a docker registry is and I finish the video with a demo explaining and illustrating how to use Docker hub

In this video lesson you will learn:

• What is Docker Host
• What is Docker Engine
• Learn about Docker Architecture
• Learn about Docker client and Docker Daemon
• Docker Hub and Registries
• Simple demo to understand using images from registries

#docker #docker hub #docker host #docker engine #docker architecture #api

Selenium Grid Tutorial: All About Setting Up A Selenium Grid | LambdaTest

Selenium is by far the most used web automation testing tools. Selenium testing can help you test on major browsers, Operating systems, and even on mobile devices.

But there is a challenge. You have to load so many browsers on your local machine. If you have a windows machine, you cannot test on Safari browsers.

To overcome this challenge you have to test on the platform having different browser environments running multiple test cases concurrently, in parallel, and reducing the overall time.

Here what Selenium Grid comes which allow you to run the test in different browser/versions, simultaneously.

Let us get a deep study on it!!

#seleniumtesting #seleniumgrid #seleniumwebdriver #developer #automationtesting #opensource #tutorial #browsertesting #safari #testing

#automation #selenium #selenium-grid #testing #selenium-webdriver