Name the main entities (components) of Docker

Main entities of Docker:

• Images — templates for creating containers, include all necessary dependencies and configurations.
• Containers — running instances of images, isolated processes.
• Docker Daemon — background process managing containers and images.
• Docker Client — command-line interface for interacting with Docker Daemon.
• Docker Registry — storage for images (e.g., Docker Hub).

Example of creating and running a container:

docker pull nginx
# download the nginx image

docker run -d -p 8080:80 nginx
# run a container with nginx, forwarding port