Kakao Pay Introduces Its Performance Test Zone Implementation Case

Kakao Pay built a k8s-based Performance Test Zone to streamline the performance verification process essential for handling large-scale traffic and architecture changes. Previously, preparing a test environment took up to a month, causing significant inconvenience for developers, but this has been improved so that developers can configure environments directly without cooperation from related departments.

The Performance Test Zone deploys services and components through the Testcraft web service. Services can be freely configured with CPU, memory, Replicas, etc. using container images, and key components such as MySQL, MongoDB, Redis, Kafka can be quickly set up in the form of standalone pods.

As a testing tool, JavaScript-based k6 was introduced to overcome the language hurdles of the existing nGrinder. Test metrics are collected via InfluxDB, and a real-time monitoring dashboard using Prometheus and Grafana allows performance bottlenecks to be identified immediately.

Key features are as follows:

• Home screen: Project creation and management by department
• Management console: Supports service/component deployment, data initialization, DB replication, and Kafka topic creation
• Monitoring dashboard: Reduces analysis time through real-time metric visualization