End-To-End Docker flow architecture

1. Developer runs docker run / triggers API.

2. CLI/API sends request to Docker Daemon.

3. Daemon interacts with containerd and runc.

4. Linux kernel creates namespaces + cgroups for isolation.

5. Writable container layer mounted on top of image layers.

6. Container process runs CMD/ENTRYPOINT.

7. Networking configured (bridge/overlay).

8. Container responds to user/application request.

9. Logs/events captured for monitoring.

Key Takeaway: Docker architecture is a layered, modular system that tightly integrates with the Linux kernel, storage, networking, and orchestration frameworks. Understanding this flow is critical for enterprise-grade DevOps pipelines.