linux on dhdevops.comhttps://dhdevops.com/tags/linux/Recent content in linux on dhdevops.comHugo -- gohugo.ioen-gbSun, 14 Jun 2026 11:30:49 +0100Stop /var/lib/docker/overlay2 from filling up your disk with docker system prunehttps://dhdevops.com/posts/fix-overlay2-disk-full/Sun, 14 Jun 2026 11:30:49 +0100https://dhdevops.com/posts/fix-overlay2-disk-full/The problem I noticed that the analytics for this blog had stopped working, so I logged onto the server that hosts the analytics and found that the disk was completely full. After some investigation, I discovered that the /var/lib/docker/overlay2 directory was taking up essentially the entire disk. What is /var/lib/docker/overlay2 and why can it take up a lot of space? This folder is where Docker stores the filesystem layers that make up your images and the writable layers used by containers.