Free Up Disk Space by Removing Unused Docker Volumes
Your Docker host has been in use for a while. Anonymous and named volumes piled up, disk space is tight, and it's time to clean stuff up.
Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
Your Docker host has been in use for a while. Anonymous and named volumes piled up, disk space is tight, and it's time to clean stuff up.
Learn the difference between stopping and permanently removing containers while operating a personal finance tracker application.
Practice mapping existing directories to new paths using Linux bind mounts and see the core tech behind container volumes in action.
Create two partitions on a blank disk: one smaller ext4 for service logs and the rest btrfs for service data. Mount both and prove they work.
Practice creating a fresh GPT partition, formatting it as ext4, and mounting it on the filesystem tree.
Practice formatting drives in Linux: identify the drive, format it as ext4, mount it, and verify the filesystem works as expected.
CTF-style challenge: discover an unmounted device, mount it, and read the flag file from it.