Docker architecture

 Docker uses a client-server architecture.

• The Docker client communicates with the Docker daemon, which runs on the host machine or in the cloud. The Docker daemon manages the Docker objects, including images, containers, networks, and volumes.
• Docker images are the blueprints for creating Docker containers. An image is a read-only template that includes instructions for creating a Docker container. Images are stored in a Docker registry, which can be a local registry or a public one, such as Docker Hub.
• Docker containers are created from Docker images. A container is a runtime instance of an image. It includes a writable layer that allows changes to be made to the container without affecting the original image.
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