DNS节点增加在线状态通知

internal/tasks/ns_node_monitor_task.go

@@ -0,0 +1,107 @@
+package tasks
+
+import (
+	"github.com/TeaOSLab/EdgeAPI/internal/db/models"
+	"github.com/TeaOSLab/EdgeAPI/internal/db/models/nameservers"
+	"github.com/TeaOSLab/EdgeAPI/internal/utils/numberutils"
+	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/systemconfigs"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/logs"
+	"time"
+)
+
+func init() {
+	dbs.OnReady(func() {
+		task := NewNSNodeMonitorTask(60)
+		ticker := time.NewTicker(60 * time.Second)
+		go func() {
+			for range ticker.C {
+				err := task.loop()
+				if err != nil {
+					logs.Println("[TASK][NS_NODE_MONITOR]" + err.Error())
+				}
+			}
+		}()
+	})
+}
+
+// NSNodeMonitorTask 边缘节点监控任务
+type NSNodeMonitorTask struct {
+	intervalSeconds int
+}
+
+func NewNSNodeMonitorTask(intervalSeconds int) *NSNodeMonitorTask {
+	return &NSNodeMonitorTask{
+		intervalSeconds: intervalSeconds,
+	}
+}
+
+func (this *NSNodeMonitorTask) Run() {
+
+}
+
+func (this *NSNodeMonitorTask) loop() error {
+	// 检查上次运行时间，防止重复运行
+	settingKey := systemconfigs.SettingCodeNSNodeMonitor + "Loop"
+	timestamp := time.Now().Unix()
+	c, err := models.SharedSysSettingDAO.CompareInt64Setting(nil, settingKey, timestamp-int64(this.intervalSeconds))
+	if err != nil {
+		return err
+	}
+	if c > 0 {
+		return nil
+	}
+
+	// 记录时间
+	err = models.SharedSysSettingDAO.UpdateSetting(nil, settingKey, []byte(numberutils.FormatInt64(timestamp)))
+	if err != nil {
+		return err
+	}
+
+	clusters, err := nameservers.SharedNSClusterDAO.FindAllEnabledClusters(nil)
+	if err != nil {
+		return err
+	}
+	for _, cluster := range clusters {
+		err := this.monitorCluster(cluster)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (this *NSNodeMonitorTask) monitorCluster(cluster *nameservers.NSCluster) error {
+	clusterId := int64(cluster.Id)
+
+	// 检查离线节点
+	inactiveNodes, err := nameservers.SharedNSNodeDAO.FindAllNotifyingInactiveNodesWithClusterId(nil, clusterId)
+	if err != nil {
+		return err
+	}
+	for _, node := range inactiveNodes {
+		subject := "DNS节点\"" + node.Name + "\"已处于离线状态"
+		msg := "DNS节点\"" + node.Name + "\"已处于离线状态"
+		err = models.SharedMessageDAO.CreateNodeMessage(nil, nodeconfigs.NodeRoleDNS, clusterId, int64(node.Id), models.MessageTypeNSNodeInactive, models.LevelError, subject, msg, nil)
+		if err != nil {
+			return err
+		}
+
+		// 修改在线状态
+		err = nameservers.SharedNSNodeDAO.UpdateNodeStatusIsNotified(nil, int64(node.Id))
+		if err != nil {
+			return err
+		}
+	}
+
+	// TODO 检查恢复连接
+
+	// 检查CPU、内存、磁盘不足节点，而且离线的节点不再重复提示
+	// TODO 需要实现
+
+	// TODO 检查53/tcp、53/udp是否能够访问
+
+	return nil
+}