#OverlayFS • 2 Articles
Articles tagged with #OverlayFS
A curated list of engineering series, deep dives, and notes related to #OverlayFS.
Engineering Docker & Container Internals from First Principles • Part 15 2026-10-06
Storage Drivers Deep Dive: OverlayFS Layering and Copy-On-Write (CoW) Performance Overhead
Deep dive into Docker OverlayFS storage drivers: lowerdir image layers, upperdir writable layers, mergedir unified views, and Copy-on-Write (CoW) latency.
Engineering Docker & Container Internals from First Principles • Part 9 2026-09-15
From Image to Container: Read-Only Layers, Writable Layers, and Execution State
Learn how Docker converts a static image into a running container using read-only image layers, an ephemeral writable layer, and OverlayFS union mounts.