Docker is an open-source software platform for building, shipping and running distributed applications. It enables developers and system administrators to create and deploy applications in a secure and fast way, while isolating them from the underlying infrastructure. Docker is built on top of Linux containers, which provide a lightweight and secure virtualization environment for running applications. It also provides tools for managing the lifecycle of distributed applications, including automatic scaling, deployment, and monitoring.Docker is an open-source software platform for building, shipping and running distributed applications. It enables developers and system administrators to create and deploy applications in a secure and fast way, while isolating them from the underlying infrastructure. Docker is built on top of Linux containers, which provide a lightweight and secure virtualization environment for running applications. It also provides tools for managing the lifecycle of distributed applications, including automatic scaling, deployment, and monitoring.Docker is an open-source software platform for building, shipping and running distributed applications. It enables developers and system administrators to create and deploy applications in a secure and fast way, while isolating them from the underlying infrastructure. Docker is built on top of Linux containers, which provide a lightweight and secure virtualization environment for running applications. It also provides tools for managing the lifecycle of distributed applications, including automatic scaling, deployment, and monitoring.Docker is an open-source software platform for building, shipping and running distributed applications. It enables developers and system administrators to create and deploy applications in a secure and fast way, while isolating them from the underlying infrastructure. Docker is built on top of Linux containers, which provide a lightweight and secure virtualization environment for running applications. It also provides tools for managing the lifecycle of distributed applications, including automatic scaling, deployment, and monitoring.