Automatic Cleanup on Branch Deletion

[stephane-segning]

Summary

As a DevOps engineer, I want branch deletion to automatically delete the deployed environment.

Acceptance Criteria

Given branch-per-env GitOps,
when branch is deleted,
then ArgoCD prunes all resources.

• It’s done when namespaces are removed.
• It’s done when shared resources are protected.

Additional Sections

• Design: Branch delete → webhook → ArgoCD API.
• Technical Information: ArgoCD automated prune.
• Notes: Must prevent accidental prod deletion.

Definition of Done

• Cleanup automation tested.