Docker is a platform that enables developers to easily create, deploy, and run applications in containers. Containers are lightweight and portable environments that package an application and all its dependencies into a single executable unit, making it easy to move the application from one environment to another without any compatibility issues. Docker provides a way to manage these containers by automating the deployment process, providing version control for container images, and enabling scaling of applications across multiple hosts. It is widely used by developers for building, testing, and deploying applications in a more efficient and streamlined manner.
