DAY 12 DEVOPS BATCH DECEMBER 2025 | DOCKER - 1

The meeting focused on introducing Docker, a containerization tool, and explaining its significance in modern software development. Preethi provided an overview of Docker, comparing it to virtual machines and highlighting its advantages in terms of resource efficiency and platform independence. She discussed the architectural differences between virtual machines and containers, emphasizing that containers share the host's operating system while virtual machines have their own. Preethi also covered the basic Docker components, including Dockerfiles, images, containers, and Docker Hub, explaining how they interact to create and manage containerized applications. The session concluded with a hands-on demonstration of basic Docker commands, including pulling and running images, and an introduction to Docker Hub and private registries like ECR.