Painless Docker - 2nd Edition

The 4 Resources of Docker

Docker manages four main resources: containers, images, networks, and volumes. Each of these resources plays a crucial role in developing, deploying, and managing containerized applications.

With the help of the Docker CLI, you can manage the four main resources of Docker:

• Containers: Containers are the runtime instances of Docker images. They encapsulate an application and its dependencies, providing a consistent environment for execution. You can create, start, stop, and manage containers using commands like docker run, docker stop, and docker rm.

• Images: Docker images are read-only templates that contain the application code, libraries, and dependencies needed to run a container. You can build images using docker build, pull images from registries with docker pull, and manage them with commands like docker images and docker rmi