Docker Compose Tool
Overview
This is a quick overview of Docker compose tool. This tool is often used for setting up scalable Automation environments with multiple Docker containers. When the application needs multiple containers, then this tool is handy.
Docker Compose Tool
Docker Compose is used for defining and running multi container applications. Automation environments can easily be created and destroyed using Docker compose. All the application services, libraries, dependencies etc are documented in Docker Compose file. The documentation file is an YAML file called: docker-compose.yml
Sample docker-compose.yml file
A sample Selenium grid configuration with docker compose file.
Using this tool, we can configure and run multiple Docker containers with just one command.
$ docker-compose up
What is YAML?
YAML is an human readable data serialization language. YAML files are used for configuration files, page objects, etc. YAML stands for Yet Another Markup Language or recursively YAML Ain’t Markup Language.
To check install:
$ docker-compose –version
Install Docker Compose
On Windows, if you install Docker Desktop the Compose tool would be installed for you by default. on Ubuntu Linux machine. Install Docker on the machine. Follow the below link to install Docker on Ubuntu machine.
Install Docker Steps:
https://www.testingdocs.com/docker-install-on-ubuntu/
Let’s see the install instructions:
To install the tool, launch terminal and issue the following command:
$ sudo apt install docker-compose
To verify the install, issue the version command
$ docker-compose version
More Information on Docker Compose Tool, visit the Docker Docs:
