How Does Docker Actually Work? (Visually Explained)
Docker explained from scratch — no fluff, just visuals.
You'll learn what Docker really is, how images and layers work, why containers aren't VMs, the layer caching gotcha that wastes everyone's time, volumes, networking, port mapping, Docker Compose, and how this is actually how Netflix, Spotify, and Uber run in production.
⏱ Timestamps:
0:00 — The "works on my machine" problem
0:24 — What is Docker?
1:07 — Containers vs Virtual Machines
1:40 — Docker Images & Layers
2:34 — The Layer Cache Gotcha
3:04 — Running Containers
3:25 — Ephemeral Containers & Volumes
4:09 — Networking & Port Mapping
4:55 — Docker Compose
5:37 — The Bigger Picture
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