Ravi Sir's Cards › Chapter 48: Docker Images: Layers, Tags, Registries, Docker Hub, ECR, Multi-Arch and Every Image Command
What is an image layer?
What is an image layer? A read-only filesystem diff from one build step, identified by a hash and shared between images; a container adds one writable layer on top.

Lesson: 48.1 Images and layers: what is inside an image · मराठी card