Proposal: Load testing with locust (#4955)

Signed-off-by: DongYoung Kim <[email protected]>

Author: kwx4957

proposals/images/locust-fault-scenario.png

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+| title | authors                                  | creation-date | last-updated |
+|-------|------------------------------------------|---------------|--------------|
+| Adding a New Chaos Fault - Load Testing with locust | [@kwx4957](https://github.com/kwx4957) | 2024-11-21    | 2024-11-21   |
+
+# Adding a New Chaos Fault - Load Testing with locust
+
+- [Summary](#summary)
+- [Motivation](#motivation)
+  - [Goals](#goals)
+  - [Non-Goals](#non-goals)
+- [Proposal](#proposal)
+  - [Use Cases](#use-cases)
+  - [Implementation Details](#implementation-details)
+- [Risks and Mitigations](#risks-and-mitigations)
+- [Upgrade / Downgrade Strategy](#upgrade--downgrade-strategy)
+- [Drawbacks](#drawbacks)
+- [Alternatives](#alternatives)
+- [References](#references)
+
+## Summary
+[locust](https://locust.io/) is an open-source load testing. LitmuChaos already supports k6 load testing, but only for the JavaScript language. On the other hand, locust supports writing scripts for Python code, giving users a wider choice. 
+
+## Motivation
+Locust is a load testing tool that supports Python code. It supports various [protocols (HTTP, GRPC)](https://docs.locust.io/en/stable/testing-other-systems.html
+) and [plugins](https://github.com/SvenskaSpel/locust-plugins?tab=readme-ov-file#users
+). Having a wide range of choices when it comes to choosing a load test will help users a lot. 
+
+
+### Goals
+
+- Adding a 'locust' Chaos Fault to [Litmus ChaosHub](https://hub.litmuschaos.io/)
+- Fixing [litmus-go](https://github.com/litmuschaos/litmus-go) and [chaos-charts](https://github.com/litmuschaos/chaos-charts) codes
+
+### Non-Goals
+
+## Proposal
+
+### Use Cases
+
+Detail the things that people will be able to do if this is `implemented`.
+
+#### Use case 1
+
+### Implementation Details
+
+This is a Locust Chaos Fault Scenario.
+
+![locust-fault-scenario](./images/locust-fault-scenario.png)
+
+1. Add scenario to the litmus-go repository
+2. Add a new Chaos Fault to the Litmus ChaosHub
+
+## Risks and Mitigations
+
+We need to grant proper RBAC permissions to the runner container. Granting override permissions may affect other systems.
+
+## Upgrade / Downgrade Strategy
+
+## Drawbacks
+
+## Alternatives
+
+## References
+
+- [locust](https://locust.io/)