fix: fix dual stack estimation.

Signed-off-by: IRONICBo <boironic@gmail.com>

build/charts/antrea/crds/nodelatencymonitor.yaml

@@ -24,7 +24,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

build/yamls/antrea-aks.yml

@@ -4335,7 +4335,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

build/yamls/antrea-crds.yml

@@ -4312,7 +4312,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

build/yamls/antrea-eks.yml

@@ -4335,7 +4335,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

build/yamls/antrea-gke.yml

@@ -4335,7 +4335,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

build/yamls/antrea-ipsec.yml

@@ -4335,7 +4335,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

build/yamls/antrea.yml

@@ -4335,7 +4335,7 @@ spec:
                   format: int32
                   minimum: 1
                   description: "Ping interval in seconds, must be at least 1."
-                  default: 10
+                  default: 60
             metadata:
               type: object
               properties:

cmd/antrea-agent/agent.go

@@ -929,8 +929,8 @@ func run(o *Options) error {
 		nodeLatencyMonitor := monitortool.NewNodeLatencyMonitor(
 			nodeInformer,
 			nodeLatencyMonitorInformer,
-			nodeConfig.GatewayConfig,
-			networkConfig.TrafficEncapMode.IsNetworkPolicyOnly(),
+			nodeConfig,
+			networkConfig.TrafficEncapMode,
 		)
 		go nodeLatencyMonitor.Run(stopCh)
 	}

pkg/agent/monitortool/latency_store.go

@@ -32,7 +32,7 @@ type LatencyStore struct {
 	// Lock for the latency store
 	mutex sync.RWMutex
 
-	// isNetworkPolicyOnly is the flag to indicate if the Antrea Agent is running in network policy only mode.
+	// Whether the agent is running in network policy only mode
 	isNetworkPolicyOnly bool
 	// The map of node ip to latency entry, it will be changed by latency monitor
 	nodeIPLatencyMap map[string]*NodeIPLatencyEntry
@@ -120,7 +120,7 @@ func (l *LatencyStore) updateNodeMap(node *corev1.Node) {
 	if l.isNetworkPolicyOnly {
 		transportIPs, err := getTransportIPs(node)
 		if err != nil {
-			klog.Errorf("Failed to get transport IPs for Node %s: %v", node.Name, err)
+			klog.ErrorS(err, "Failed to get transport IPs for Node", "nodeName", node.Name)
 			return
 		}
 
@@ -129,29 +129,27 @@ func (l *LatencyStore) updateNodeMap(node *corev1.Node) {
 	} else {
 		gw0IPs, err := getGWIPs(node)
 		if err != nil {
-			klog.Errorf("Failed to get gateway IPs for Node %s: %v", node.Name, err)
+			klog.ErrorS(err, "Failed to get gateway IPs for Node", "nodeName", node.Name)
 			return
 		}
 
 		// Add the node to the node IP map
 		l.nodeGatewayMap[node.Name] = gw0IPs
 	}
-
-	klog.Infof("Node %s has gateway IPs %v", node.Name, l.nodeGatewayMap[node.Name])
 }
 
 func getTransportIPs(node *corev1.Node) ([]net.IP, error) {
 	var transportIPs []net.IP
-	dualIP, err := k8s.GetNodeTransportAddrs(node)
+	ips, err := k8s.GetNodeTransportAddrs(node)
 	if err != nil {
 		return transportIPs, err
 	}
 
-	if dualIP.IPv4 != nil {
-		transportIPs = append(transportIPs, dualIP.IPv4)
+	if ips.IPv4 != nil {
+		transportIPs = append(transportIPs, ips.IPv4)
 	}
-	if dualIP.IPv6 != nil {
-		transportIPs = append(transportIPs, dualIP.IPv6)
+	if ips.IPv6 != nil {
+		transportIPs = append(transportIPs, ips.IPv6)
 	}
 
 	return transportIPs, nil
@@ -163,22 +161,24 @@ func getGWIPs(node *corev1.Node) ([]net.IP, error) {
 	podCIDRStrs := getPodCIDRsOnNode(node)
 	if len(podCIDRStrs) == 0 {
 		// Skip the node if it does not have a PodCIDR.
-		klog.Errorf("Node %s does not have a PodCIDR", node.Name)
-		return gwIPs, errors.New("node does not have a PodCIDR")
+		err := errors.New("node does not have a PodCIDR")
+		klog.ErrorS(err, "Node does not have a PodCIDR", "nodeName", node.Name)
+		return gwIPs, err
 	}
 
 	// the 0th entry must match the podCIDR field. It may contain at most 1 value for
 	// each of IPv4 and IPv6.
 	// Both podCIDRStrs need to be parsed to get the gateway IP.
 	for _, podCIDR := range podCIDRStrs {
 		if podCIDR == "" {
-			klog.Errorf("PodCIDR is empty for Node %s", node.Name)
-			return gwIPs, errors.New("PodCIDR is empty")
+			err := errors.New("PodCIDR is empty")
+			klog.ErrorS(err, "PodCIDR is empty", "nodeName", node.Name)
+			return gwIPs, err
 		}
 
 		peerPodCIDRAddr, _, err := net.ParseCIDR(podCIDR)
 		if err != nil {
-			klog.Errorf("Failed to parse PodCIDR %s for Node %s", podCIDR, node.Name)
+			klog.ErrorS(err, "Failed to parse PodCIDR", "nodeName", node.Name)
 			return gwIPs, err
 		}
 

pkg/agent/monitortool/monitor.go

@@ -65,14 +65,21 @@ func getICMPSeq() uint32 {
 
 // NodeLatencyMonitor is a tool to monitor the latency of the node.
 type NodeLatencyMonitor struct {
-	// Gateway config
-	gatewayConfig *config.GatewayConfig
+	// Node config
+	nodeConfig *config.NodeConfig
 	// latencyStore is the cache to store the latency of each nodes.
 	latencyStore *LatencyStore
 	// latencyConfig is the config for the latency monitor.
 	latencyConfig *LatencyConfig
 	// latencyConfigChanged is the channel to notify the latency config changed.
 	latencyConfigChanged chan struct{}
+	// gatewayConfig is the traffic encap mode for the latency monitor,
+	// indicate if the Antrea Agent is running in network policy only mode.
+	trafficEncapMode config.TrafficEncapModeType
+	// isIPv4Enabled is the flag to indicate if the IPv4 is enabled.
+	isIPv4Enabled bool
+	// isIPv6Enabled is the flag to indicate if the IPv6 is enabled.
+	isIPv6Enabled bool
 
 	// The map of node name to node info, it will changed by node watcher
 	nodeInformer coreinformers.NodeInformer
@@ -90,17 +97,31 @@ type LatencyConfig struct {
 
 func NewNodeLatencyMonitor(nodeInformer coreinformers.NodeInformer,
 	nlmInformer crdinformers.NodeLatencyMonitorInformer,
-	gatewayConfig *config.GatewayConfig,
-	isNetworkPolicyOnly bool) *NodeLatencyMonitor {
+	nodeConfig *config.NodeConfig,
+	trafficEncapMode config.TrafficEncapModeType) *NodeLatencyMonitor {
 	m := &NodeLatencyMonitor{
-		gatewayConfig:              gatewayConfig,
-		latencyStore:               NewLatencyStore(isNetworkPolicyOnly),
+		nodeConfig:                 nodeConfig,
+		trafficEncapMode:           trafficEncapMode,
+		latencyStore:               NewLatencyStore(trafficEncapMode.IsNetworkPolicyOnly()),
 		latencyConfig:              &LatencyConfig{Enable: false},
 		latencyConfigChanged:       make(chan struct{}, 1),
 		nodeInformer:               nodeInformer,
 		nodeLatencyMonitorInformer: nlmInformer,
 	}
 
+	// Get the IPv4/IPv6 enabled status
+	isIPv4Enabled, err := config.IsIPv4Enabled(m.nodeConfig, m.trafficEncapMode)
+	if err != nil {
+		klog.ErrorS(err, "Failed to get IPv4 enabled status")
+	}
+	isIPv6Enabled, err := config.IsIPv6Enabled(m.nodeConfig, m.trafficEncapMode)
+	if err != nil {
+		klog.ErrorS(err, "Failed to get IPv6 enabled status")
+	}
+	m.isIPv4Enabled = isIPv4Enabled
+	m.isIPv6Enabled = isIPv6Enabled
+
+	// Add node informer event handler for Node
 	nodeInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
 		AddFunc:    m.onNodeAdd,
 		UpdateFunc: m.onNodeUpdate,
@@ -188,8 +209,6 @@ func (m *NodeLatencyMonitor) updateLatencyConfig(nlm *v1alpha1.NodeLatencyMonito
 
 // onNodeLatencyMonitorDelete is the event handler for deleting NodeLatencyMonitor.
 func (m *NodeLatencyMonitor) onNodeLatencyMonitorDelete(obj interface{}) {
-	klog.InfoS("NodeLatencyMonitor deleted", "NodeLatencyMonitor")
-
 	// Update the latency config
 	m.latencyConfig = &LatencyConfig{Enable: false}
 
@@ -344,14 +363,14 @@ func (m *NodeLatencyMonitor) pingAll(ipv4Socket, ipv6Socket net.PacketConn) {
 			klog.InfoS("Start to ping node", "Node name", name, "Node IP", toIP)
 			if toIP.To4() != nil && ipv4Socket != nil {
 				if err := m.sendPing(ipv4Socket, toIP); err != nil {
-					klog.Warningf("Failed to send ICMP message to node, err: %#v, Node name: %#v, Node IP: %v", err, name, toIP)
+					klog.InfoS("Failed to send ICMP message to node", "Node name", name, "Node IP", toIP)
 				}
 			} else if toIP.To16() != nil && ipv6Socket != nil {
 				if err := m.sendPing(ipv6Socket, toIP); err != nil {
-					klog.Warningf("Failed to send ICMP message to node, err: %#v, Node name: %#v, Node IP: %v", err, name, toIP)
+					klog.InfoS("Failed to send ICMP message to node", "Node name", name, "Node IP", toIP)
 				}
 			} else {
-				klog.Warningf("Failed to send ICMP message to node, Node name: %#v, Node IP: %v", name, toIP)
+				klog.InfoS("Failed to send ICMP message to node", "Node name", name, "Node IP", toIP)
 			}
 		}
 	}
@@ -381,7 +400,7 @@ func (m *NodeLatencyMonitor) Run(stopCh <-chan struct{}) {
 
 func (m *NodeLatencyMonitor) monitorLoop(stopCh <-chan struct{}) {
 	// Low level goroutine to handle ping loop
-	var currentTicker *time.Ticker
+	var ticker *time.Ticker
 	var tickerCh <-chan time.Time
 	var ipv4Socket, ipv6Socket net.PacketConn
 	var err error
@@ -394,19 +413,19 @@ func (m *NodeLatencyMonitor) monitorLoop(stopCh <-chan struct{}) {
 		if ipv6Socket != nil {
 			ipv6Socket.Close()
 		}
-		if currentTicker != nil {
-			currentTicker.Stop()
+		if ticker != nil {
+			ticker.Stop()
 		}
 		close(tickerStopCh)
 	}()
 
 	// Update current ticker based on the latencyConfig
 	updateTicker := func(interval time.Duration) {
-		if currentTicker != nil {
-			currentTicker.Stop() // Stop the current ticker
+		if ticker != nil {
+			ticker.Stop() // Stop the current ticker
 		}
-		currentTicker = time.NewTicker(interval)
-		tickerCh = currentTicker.C
+		ticker = time.NewTicker(interval)
+		tickerCh = ticker.C
 	}
 
 	// Start the pingAll goroutine
@@ -427,8 +446,8 @@ func (m *NodeLatencyMonitor) monitorLoop(stopCh <-chan struct{}) {
 			}
 		case <-stopCh:
 			// Stop the ticker loop
-			if currentTicker != nil {
-				currentTicker.Stop()
+			if ticker != nil {
+				ticker.Stop()
 			}
 			close(tickerStopCh)
 			return
@@ -441,7 +460,7 @@ func (m *NodeLatencyMonitor) monitorLoop(stopCh <-chan struct{}) {
 				// If the recvPing socket is closed, restart it
 				// In case of IPv4-only or IPv6-only, we need to check the socket status,
 				// and restart it if it is closed(CRD is deleted).
-				if ipv4Socket == nil && m.gatewayConfig.IPv4 != nil {
+				if ipv4Socket == nil && m.isIPv4Enabled {
 					// Create a new socket for IPv4 when the gatewayConfig is IPv4-only
 					ipv4Socket, err = icmp.ListenPacket(IPv4ProtocolICMPRaw, "0.0.0.0")
 					if err != nil {
@@ -450,7 +469,7 @@ func (m *NodeLatencyMonitor) monitorLoop(stopCh <-chan struct{}) {
 					}
 					go m.recvPing(ipv4Socket, true, tickerStopCh)
 				}
-				if ipv6Socket == nil && m.gatewayConfig.IPv6 != nil {
+				if ipv6Socket == nil && m.isIPv6Enabled {
 					// Create a new socket for IPv6 when the gatewayConfig is IPv6-only
 					ipv6Socket, err = icmp.ListenPacket(IPv6ProtocolICMPRaw, "::")
 					if err != nil {
@@ -461,9 +480,9 @@ func (m *NodeLatencyMonitor) monitorLoop(stopCh <-chan struct{}) {
 				}
 			} else {
 				// latencyConfig deleted
-				if currentTicker != nil {
-					currentTicker.Stop()
-					currentTicker = nil
+				if ticker != nil {
+					ticker.Stop()
+					ticker = nil
 				}
 				close(tickerStopCh)
 			}

pkg/agent/monitortool/monitor_test.go

@@ -66,8 +66,8 @@ func TestNewNodeLatencyMonitor(t *testing.T) {
 	nodeLatencyMonitor := NewNodeLatencyMonitor(
 		nodeInformer,
 		nlmInformer,
-		&config.GatewayConfig{},
-		false,
+		&config.NodeConfig{},
+		config.TrafficEncapModeNetworkPolicyOnly,
 	)
 	assert.NotNil(t, nodeLatencyMonitor)
 

pkg/apis/crd/v1alpha1/register.go

@@ -53,6 +53,8 @@ func addKnownTypes(scheme *runtime.Scheme) error {
 		&ExternalNodeList{},
 		&SupportBundleCollection{},
 		&SupportBundleCollectionList{},
+		&NodeLatencyMonitor{},
+		&NodeLatencyMonitorList{},
 	)
 
 	metav1.AddToGroupVersion(

pkg/apis/crd/v1alpha1/types.go

@@ -314,6 +314,11 @@ type NodeLatencyMonitorSpec struct {
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// NodeLatencyMonitor is only a singleton resource, so it does not use a list type.
+// But current k8s client-gen does not support generating client for singleton informer resource,
+// so we have to define a list type for CRD Informer.
+// Maybe we will remove it in the future.
 type NodeLatencyMonitorList struct {
 	metav1.TypeMeta `json:",inline"`
 	// +optional

pkg/features/antrea_features.go

@@ -159,7 +159,7 @@ const (
 	// Enable layer 7 flow export on Pods and Namespaces
 	L7FlowExporter featuregate.Feature = "L7FlowExporter"
 
-	// alpha: v2.0
+	// alpha: v2.1
 	// Enable the NodeLatencyMonitor feature.
 	NodeLatencyMonitor featuregate.Feature = "NodeLatencyMonitor"
 )