What is Chaos Manager?
Chaos Manager is an open-source chaos engineering tool created by Microsoft to help test the resilience of cloud applications. It allows developers and SREs to run controlled experiments on Azure infrastructure by injecting real-world faults like instance shutdowns, disk failures, network delays, and more.
Chaos Manager has a simple UI that lets you define the scope and schedule for chaos experiments. You can target specific regions, resource groups, or even individual VMs. This allows testing the fault tolerance of critical production applications without impacting others.
During an experiment, Chaos Manager will automatically inject infrastructure failures based on your configuration. It starts small to minimize blast radius, slowly ramping up failures over time. Detailed logs provide insight into how your application responded. If issues are found, you can abort the experiment with a single click.
Key features of Chaos Manager:
- Schedule and run chaos experiments with different fault types
- Fine-grained targeting of Azure resources to fail
- Gradual ramp up of failure levels
- Easy early termination if issues emerge
- Integrations with monitoring tools like Datadog
- Open source and free to use
Overall, Chaos Manager simplifies resilience testing for cloud-based applications. Its capabilities for controlled fault injection make it a useful tool for DevOps teams practicing Chaos Engineering.