Explore a conference talk detailing how a human error in ArgoCD Kustomize configuration led to business application deployment failures at Bank Hapoalim. Learn about the pitfalls and best practices of using Kustomize, and discover the lessons learned from this incident. Gain insights into managing the desired state of multiple OpenShift clusters using GitOps and ArgoCD. Understand the challenges of assessing the impact of Kustomize base/overlay changes on overall configuration. Examine the implementation of a merge request pipeline with validations and approval mechanisms to prevent future mistakes. Discover strategies for protecting a monorepo that affects multiple clusters from potentially harmful changes.