Docker Masters! From CI/CD to DevSecOps Automation Security Practice!

Hello, Inflearn students!

Thank you for always taking the classes with such enthusiasm. I'm reaching out because there have been important changes to the storage driver structure related to the recent Docker Engine major updates (v27.0, v28.0), and I've updated some of the lecture content in Section 3 to reflect these changes.

🛠 Update Background: Graphdriver plugins Deprecation

Docker v27.0 has disabled the previously experimental Graphdriver plugins feature by default, and it is scheduled to be completely removed in v28.0. Docker now recommends using an architecture based on the containerd image store and snapshotter.

https://docs.docker.com/engine/deprecated/#graphdriver-plugins-experimental

Due to these changes, the path and method for checking the layer structure of Docker images at the host level have been modified. If you practice using the old method, you may not see the expected file paths (Layer paths) or the structure may appear different in the latest Docker environment.

Accordingly, we have filmed and updated the relevant lectures so that you can learn without confusion even in the latest practical environments.

📺 Updated Course List

[Section 3. Docker Container Core Concepts]

1. Checking Image Manifest Files and Layer Structure

   • Changes: Updated with methods to access and understand the structure of image layer filesystems in the latest storage driver environment.

2. Checking Container Details and Lifecycle Practice

   • Changes: Enhanced the hands-on content to inspect container details according to the updated storage structure and verify the merged directory of the filesystem in the rootfs path.

✅ Course Guide

Even if you've taken this course before, we recommend lightly reviewing the updated lectures to understand the changes in the latest Docker architecture. If you're taking the course for the first time, you can proceed with the updated content as is.

If you happen to find any differences from the lecture content or discover additional changes, please don't hesitate to report them using the following methods. Your valuable feedback helps make the course even better and greatly benefits other students as well.

• Report via email: ilsunchoi@cloudsecuritylab.co.kr

• Report as a question from the lecture

We will continuously update our course content to keep pace with technological changes, delivering the most accurate and useful knowledge to you.

Then I hope you have a fun learning experience today!

Thank you.