This course is designed to help developers and beginners understand Docker from a practical DevOps perspective using Node.js and Express. You will learn how to containerize applications, manage environments, and streamline deployment using Docker.

We start with the basics of Docker, including images, containers, and Dockerfiles. You will understand how Docker simplifies application deployment by isolating environments and ensuring consistency across development, testing, and production systems.

Next, you will build real-world Node.js and Express applications and learn how to dockerize them step by step. This includes writing Dockerfiles, creating custom images, and running containers efficiently.

The course also covers Docker Compose, which helps manage multi-container applications such as connecting a Node.js backend with databases like MongoDB. You will also learn how to manage volumes, networks, and environment variables.

By the end of the course, you will be able to confidently build, run, and deploy containerized applications and understand how Docker fits into modern DevOps workflows. This knowledge is essential for backend developers, DevOps beginners, and anyone looking to improve deployment efficiency and scalability in real-world projects.