From b114dae22f5736af9a5bce3f5d087c02adffac52 Mon Sep 17 00:00:00 2001
From: jianping-shu <jshu@redhat.com>
Date: Tue, 9 Dec 2025 12:27:09 +0800
Subject: [PATCH] Debug azure custom-dns issue

---
 pkg/installmanager/installmanager.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkg/installmanager/installmanager.go b/pkg/installmanager/installmanager.go
index 41ffb34ad4..6e4ac4c890 100644
--- a/pkg/installmanager/installmanager.go
+++ b/pkg/installmanager/installmanager.go
@@ -351,6 +351,11 @@ func (m *InstallManager) Run() error {
 	}
 	m.log.Infof("copied %s to %s", m.InstallConfigMountPath, destInstallConfigPath)
 
+	//install-config.yaml backup for check
+	if err := os.WriteFile("/tmp/install-config.yaml", icData, 0644); err != nil {
+		m.log.WithError(err).Error("error writing the install-config.yaml backup")
+	}
+
 	if cd.Spec.Provisioning != nil && len(cd.Spec.Provisioning.SSHKnownHosts) > 0 {
 		err = m.writeSSHKnownHosts(getHomeDir(), cd.Spec.Provisioning.SSHKnownHosts)
 		if err != nil {