docker exec router tc qdisc add dev eth0 root netem delay 50ms docker exec router tc qdisc add dev eth1 root netem delay 50ms
toxiproxy-cli create -l localhost:8000 -u upstream-zone-b:8080 zone-proxy toxiproxy-cli toxic add zone-proxy -t latency -a latency=100 toxiproxy-cli toxic add zone-proxy -t timeout -a timeout=1000 cloud zone emulator
cloud emulator (often referred to as a "cloud phone" or "cloud gaming zone") is a service that hosts an operating system, typically Android, on powerful remote servers rather than your local hardware. You access this virtual environment over the internet via a web browser or a lightweight app, allowing you to run demanding games or apps on low-end devices. Formacionpoliticaisc How It Works docker exec router tc qdisc add dev eth0
The emulator must track "session affinity." If Zone A goes down in the emulator, the TCP connections to that zone should reset, forcing the application to renegotiate TLS and possibly cause a retry storm. This is a growing trend in the "GreenOps" space
This is a growing trend in the "GreenOps" space. Different zones have different pricing for the same instance type (e.g., m5.large is often cheaper in us-east-1c due to power/cooling efficiencies in the data center). A cloud zone emulator can provide an API proxy that injects fake billing metadata. This allows a FinOps team to test "zone-aware" auto-scaling logic: Does your application correctly shift traffic to the cheapest available zone during non-peak hours?