What does the 'docker run' command do?

The docker run command is used to create and start a new container from a specified Docker image. It tells Docker to run the image as a container, allowing you to execute applications or services within that containerized environment.

Here’s a basic syntax of the command:

docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

• IMAGE: The name of the Docker image you want to run.
• COMMAND: (Optional) The command to run inside the container.
• ARG: (Optional) Arguments for the command.

For example, to start a new container from the nginx image, you would use:

docker run nginx

This command will create and start a new container running the Nginx web server.