Docker: A Simple Introduction with Legos

Docker is a tool that simplifies the process of building, transporting, and running applications by using lightweight containers. It ensures consistency and portability across different environments, makes resource management more efficient, and streamlines development. Building a Docker image involves creating a Dockerfile, assembling dependencies, and running the application in a container. Docker Compose can be used to manage multiple containers, such as a web application and a database, with ease.