This is a repackaged open-source software product wherein additional charges apply for support and for providing it in a simple consumable AMI. Docker CE can be used to deploy applications in a variety of environments, from small development machines to large production clusters. Docker CE can be used to build images from Dockerfiles. Dockerfiles are text files that contain instructions for building Docker images. Docker CE can be used to run containers from images. Containers are isolated environments that run on top of the host operating system. Docker CE can be used to network containers together. This allows containers to communicate with each other.