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In this course, you’ll learn about containers, creating images, containerizing applications, and effectively deploying Docker in real-world scenarios.

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Containers have revolutionized the IT world, making it difficult to know where to begin. This course will take you from basics to proficiency step by step.
You’ll start by learning the basics of containers and how they work. Then, you’ll explore key concepts like images and the Docker engine. With the basics out of the way, you’ll learn how to containerize and run an application. After completing this course, you’ll be ready to use Docker in the real world.

Docker Guide for Beginners

# Summary of the Docker image commands

Let's revise some of the commands we've used.
- `docker pull` is the command to download images from remote registries. It defaults to Docker Hub but works with other registries. The `docker pull alpine:latest` command will pull the image tagged as `latest` from the `alpine` repository on Docker Hub.

- `docker images` lists all of the images in our Docker host’s local repository (image cache). We can add the  `--digests` flag to see the SHA256 hashes.

- `docker inspect` gives us a wealth of image-related metadata in a nicely formatted view.

- `docker manifest inspect` lets us inspect the manifest list of images stored in registries. The `docker manifest inspect ghcr.io/regclient/regctl` command will show the manifest list for the `regctl` image on the GitHub Container Registry (GHCR).

- `docker buildx` is a Docker CLI plugin that works with Docker’s latest build engine features. We learned how to use the `imagetools` sub-command to query manifest-related data from images.

- `docker scout` is a Docker CLI plugin that integrates with the Docker Scout backend to perform image vulnerability scanning. It scans images, provides reports on vulnerabilities, and even suggests remediation actions.

- `docker rmi` is the command used to delete images. It removes all layer data stored on the local filesystem. However, images associated with containers in running (up) or stopped (exited) states cannot be deleted.

Get a brief summary of the commands for managing Docker images covered in this chapter.

About the Course

An Overview of Containers

Docker and Container-Related Standards and Projects

The Big Picture

The Docker Engine

Working with Images

Working with Containers

Containerizing an Application

Conclusion

Appendix: Getting Docker

Docker Images: Key Commands

Summary of the Docker image commands