Scalable Sentry
Tower defense game where you defend your infrastructure against waves of network traffic. Deploy servers, manage resources, and survive boss waves!
Category: Games
What You Will Learn
- Design auto-scaling architectures
- Implement load balancing strategies
- Build high-availability systems
- Handle traffic spikes gracefully
Topics covered: game, tower-defense, strategy, networking
// simulator
Scalable Sentry
Tower defense game where you defend your infrastructure against waves of network traffic. Deploy servers, manage resources, and survive boss waves!
Try next
// game
Bug Hunter
DevOps-themed Snake game where you control a bug that infects healthy servers. Grow longer with each infection, but avoid crashing into walls or yourself!
// simulator
Log Aggregation Pipeline Simulator
Follow production logs from applications through collection, parsing, filtering, buffering, sharded indexing, and search. Trigger traffic spikes, parser failures, and slow indexing to see where backpressure builds and logs can be lost.
// simulator
How Docker Works Under the Hood
Watch what really happens when you run docker run -p 8080:80 nginx, one layer at a time. Step down the whole stack: the CLI, the daemon, the registry pull, containerd, the OCI runtime bundle, runc, the running container, and the shared Linux kernel. Every stage shows the real low-level command you can run yourself, so it doubles as a tour of the primitives that make a container: namespaces, cgroups, and runc. A container is not a small VM, and this shows you why.