# What language is used to write custom health checks in Argo CD?

Argo CD, Hard (Expert), Troubleshooting & Debugging. https://k8wiz.com/uquiz/what-language-is-used-to-write-custom-health-checks-in-argo-cd

- A. Python
- B. Lua
- C. JavaScript
- D. Go

**Answer:** Lua

**Explanation:** Argo CD allows you to define custom health checks using Lua scripts as per the configuration in the argocd-cm.