File 0004-Improve-the-handling-of-ordinal-pod-interface-name-for-upgrade.patch of Package kubevirt

From f971fd63e00bb025459ff321e45a8e3d888ce11c Mon Sep 17 00:00:00 2001
From: Vicente Cheng <vicente.cheng@suse.com>
Date: Wed, 10 Apr 2024 00:47:44 +0800
Subject: [PATCH 1/2] network: add more network name scheme test cases

    - Add different order to verify the correct interface name
    - Add only one secondary network to verify the correct interface name

Signed-off-by: Vicente Cheng <vicente.cheng@suse.com>
---
 pkg/network/namescheme/networknamescheme_test.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/pkg/network/namescheme/networknamescheme_test.go b/pkg/network/namescheme/networknamescheme_test.go
index 8fe85485006a..7b6fe8f562f4 100644
--- a/pkg/network/namescheme/networknamescheme_test.go
+++ b/pkg/network/namescheme/networknamescheme_test.go
@@ -259,6 +259,22 @@ var _ = Describe("Network Name Scheme", func() {
 				},
 				"net2",
 			),
+			Entry("given secondary network name with different order",
+				"multus01",
+				[]virtv1.Network{
+					createMultusSecondaryNetwork("blue", "test-br"),
+					createMultusSecondaryNetwork("multus01", "test-br"),
+					newPodNetwork(),
+				},
+				"net2",
+			),
+			Entry("given secondary network name, only one secondary network",
+				"multus01",
+				[]virtv1.Network{
+					createMultusSecondaryNetwork("multus01", "test-br"),
+				},
+				"net1",
+			),
 		)
 	})
 })

From b8d181ec8c81353e0e8462f3f41a8ae916795730 Mon Sep 17 00:00:00 2001
From: Vicente Cheng <vicente.cheng@suse.com>
Date: Wed, 10 Apr 2024 01:10:36 +0800
Subject: [PATCH 2/2] network: improve the OrdinalPodInterfaceName mechanism

    - the networks are not ordered, means the pod network is not always
      on the first. We should consider more to get the secondary network
      because the secondary started from 1 to n.
    - Also, we should consider only have one multus and secondary
      network situation.

    This change mainly finetune the mechanism for get the secondary
    multus network.

Signed-off-by: Vicente Cheng <vicente.cheng@suse.com>
---
 pkg/network/namescheme/networknamescheme.go | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/pkg/network/namescheme/networknamescheme.go b/pkg/network/namescheme/networknamescheme.go
index b2be1d62e54d..470151c91806 100644
--- a/pkg/network/namescheme/networknamescheme.go
+++ b/pkg/network/namescheme/networknamescheme.go
@@ -92,17 +92,13 @@ func CreateOrdinalNetworkNameScheme(vmiNetworks []v1.Network) map[string]string
 	return networkNameSchemeMap
 }
 
+// OrdinalPodInterfaceName returns the ordinal interface name for the given network name.
+// Rereuse the `CreateOrdinalNetworkNameScheme` for various networks helps find the target interface name.
 func OrdinalPodInterfaceName(name string, networks []v1.Network) string {
-	for i, network := range networks {
-		if network.Name == name {
-			if vmispec.IsSecondaryMultusNetwork(network) {
-				return generateOrdinalInterfaceName(i)
-			}
-
-			return PrimaryPodInterfaceName
-		}
+	networkNameSchemeMap := CreateOrdinalNetworkNameScheme(networks)
+	if ordinalName, exist := networkNameSchemeMap[name]; exist {
+		return ordinalName
 	}
-
 	return ""
 }