Docker is a set of platform as a service products that use OS-level virtualization to deliver software in packages called containers. The service has both free and premium tiers. The software that hosts the containers is called Docker Engine. It was first released in 2013 and is developed by Docker, Inc. Docker is a software platform that allows you to build, test, and deploy applications quickly. Docker packages software into standardized units called containers that have everything the software needs to run including libraries, system tools, code, and runtime. Docker use cases are diverse and span across various industries, including speeding up software development processes, supporting microservices architecture, simplifying application deployment in cloud environments, and even enhancing reproducibility in scientific research. Docker helps developers build, share, run, and verify applications anywhere — without tedious environment configuration or management. Develop your own unique applications with Docker images and create multiple containers using Docker Compose. Docker works with all development tools such as VS Code, CircleCI, and GitHub.
