实现节点自动切换到备用IP

internal/db/models/node_ip_address_model_ext.go

@@ -6,6 +6,7 @@ import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
 )
 
+// DecodeConnectivity 解析联通数值
 func (this *NodeIPAddress) DecodeConnectivity() *nodeconfigs.Connectivity {
 	var connectivity = &nodeconfigs.Connectivity{}
 	if len(this.Connectivity) > 0 {
@@ -16,3 +17,28 @@ func (this *NodeIPAddress) DecodeConnectivity() *nodeconfigs.Connectivity {
 	}
 	return connectivity
 }
+
+// DNSIP 获取当前DNS可以使用的IP
+func (this *NodeIPAddress) DNSIP() string {
+	var backupIP = this.DecodeBackupIP()
+	if len(backupIP) > 0 {
+		return backupIP
+	}
+	return this.Ip
+}
+
+// DecodeBackupIP 获取备用IP
+func (this *NodeIPAddress) DecodeBackupIP() string {
+	if this.BackupThresholdId > 0 && len(this.BackupIP) > 0 {
+		// 阈值是否存在
+		b, err := SharedNodeIPAddressThresholdDAO.ExistsEnabledThreshold(nil, int64(this.BackupThresholdId))
+		if err != nil {
+			remotelogs.Error("NodeIPAddress.DNSIP", "check enabled threshold failed: "+err.Error())
+		} else {
+			if b {
+				return this.BackupIP
+			}
+		}
+	}
+	return ""
+}