Evolution and Practices of Qunar's Noah Environment Platform for Automated Test Environments

Qunar's Noah environment platform was created to solve the growing complexity of test environment provisioning for micro‑service applications, where multiple isolated environments required manual resource allocation and frequent synchronization with production.

In the first stage, the team standardized environment definitions as templates, externalized configuration variables, and adopted infrastructure‑as‑code practices, enabling fully automated environment construction.

The second stage focused on improving build success rates and lowering resource costs by introducing DAG‑based task orchestration, redis‑backed scheduling, soft‑routing mechanisms, and a hybrid KVM‑container deployment model, which dramatically reduced environment size and hardware usage.

The third stage aimed to boost developer productivity and cut ops manpower by providing a local Tomcat server for rapid testing, establishing health‑metric dashboards for environment stability, and implementing self‑healing automation for common issues.

As a result, Noah now manages nearly 2,000 environments with over 80% build success, achieves a 90% reduction in environment footprint, saves millions of RMB annually, and delivers near‑zero‑perception test environments.

Future work includes extending the platform to production environments and tighter integration with OKR/PMO workflows to provide end‑to‑end value delivery across the software lifecycle.