Works with the ignoreDifferences config in argocd-cm to prevent
auto-sync from triggering on controller-managed field changes
(ESO finalizers, HTTPRoute annotations, etc.)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Apps using ServerSideApply without ServerSideDiff causes ArgoCD to
compute diffs client-side, which detects controller-added fields
(finalizers, defaults, annotations) as changes and keeps apps
permanently OutOfSync. ServerSideDiff uses dry-run SSA for accurate
diff computation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>