The Complete Practical Docker Guide - What is CMD in the Docker Image

The video tutorial explains the concept of Docker containers, focusing on the Hello World image. It describes how Docker images are composed of layers, each with specific instructions that dictate container behavior. The tutorial also covers how to inspect Docker containers to find command instructions and provides a brief preview of the next lecture on container usage.

What happens under the hood when a Docker container is created based on a specific image?

Can you explain the role of layers in a Docker image?

How does the 'Hello World' container execute its command to print text to the terminal?

What are the steps to inspect a Docker container to find the executable file?

What is the significance of the CMD instruction in a Docker container?