What is the main purpose of using containerization with Docker in projects?

The main goal of containerization using Docker is to ensure isolation and reproducibility of the application environment. Docker allows you to package an application along with all its dependencies, libraries, and configurations into a single container that can be run on any machine with Docker without additional setup.

Advantages:

• Consistency of development, testing, and production environments.
• Fast deployment and scaling.
• Simplification of dependency management.
• Easy migration and portability of applications.

Example: if you have a Python application, you can create a Docker image with the required Python version and all libraries to ensure it works the same everywhere.