mirror of
https://github.com/nezhahq/nezha.git
synced 2025-01-22 12:48:14 -05:00
4b1af369e3
* small improvements * fix: return empty iterator if no json present * use time.Tick * changes
644 lines
22 KiB
Go
644 lines
22 KiB
Go
package singleton
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import (
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"cmp"
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"fmt"
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"log"
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"slices"
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"strings"
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"sync"
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"time"
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"github.com/jinzhu/copier"
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"github.com/nezhahq/nezha/model"
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"github.com/nezhahq/nezha/pkg/utils"
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pb "github.com/nezhahq/nezha/proto"
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)
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const (
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_CurrentStatusSize = 30 // 统计 15 分钟内的数据为当前状态
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)
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var ServiceSentinelShared *ServiceSentinel
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type serviceResponseItem struct {
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model.ServiceResponseItem
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service *model.Service
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}
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type ReportData struct {
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Data *pb.TaskResult
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Reporter uint64
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}
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// _TodayStatsOfService 今日监控记录
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type _TodayStatsOfService struct {
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Up int // 今日在线计数
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Down int // 今日离线计数
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Delay float32 // 今日平均延迟
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}
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// NewServiceSentinel 创建服务监控器
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func NewServiceSentinel(serviceSentinelDispatchBus chan<- model.Service) {
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ServiceSentinelShared = &ServiceSentinel{
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serviceReportChannel: make(chan ReportData, 200),
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serviceStatusToday: make(map[uint64]*_TodayStatsOfService),
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serviceCurrentStatusIndex: make(map[uint64]*indexStore),
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serviceCurrentStatusData: make(map[uint64][]*pb.TaskResult),
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lastStatus: make(map[uint64]int),
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serviceResponseDataStoreCurrentUp: make(map[uint64]uint64),
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serviceResponseDataStoreCurrentDown: make(map[uint64]uint64),
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serviceResponseDataStoreCurrentAvgDelay: make(map[uint64]float32),
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serviceResponsePing: make(map[uint64]map[uint64]*pingStore),
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Services: make(map[uint64]*model.Service),
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tlsCertCache: make(map[uint64]string),
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// 30天数据缓存
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monthlyStatus: make(map[uint64]*serviceResponseItem),
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dispatchBus: serviceSentinelDispatchBus,
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}
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// 加载历史记录
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ServiceSentinelShared.loadServiceHistory()
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year, month, day := time.Now().Date()
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today := time.Date(year, month, day, 0, 0, 0, 0, Loc)
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var mhs []model.ServiceHistory
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// 加载当日记录
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DB.Where("created_at >= ?", today).Find(&mhs)
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totalDelay := make(map[uint64]float32)
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totalDelayCount := make(map[uint64]float32)
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for i := 0; i < len(mhs); i++ {
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totalDelay[mhs[i].ServiceID] += mhs[i].AvgDelay
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totalDelayCount[mhs[i].ServiceID]++
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ServiceSentinelShared.serviceStatusToday[mhs[i].ServiceID].Up += int(mhs[i].Up)
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].TotalUp += mhs[i].Up
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ServiceSentinelShared.serviceStatusToday[mhs[i].ServiceID].Down += int(mhs[i].Down)
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].TotalDown += mhs[i].Down
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}
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for id, delay := range totalDelay {
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ServiceSentinelShared.serviceStatusToday[id].Delay = delay / float32(totalDelayCount[id])
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}
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// 启动服务监控器
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go ServiceSentinelShared.worker()
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// 每日将游标往后推一天
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_, err := Cron.AddFunc("0 0 0 * * *", ServiceSentinelShared.refreshMonthlyServiceStatus)
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if err != nil {
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panic(err)
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}
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}
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/*
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使用缓存 channel，处理上报的 Service 请求结果，然后判断是否需要报警
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需要记录上一次的状态信息
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加锁顺序：serviceResponseDataStoreLock > monthlyStatusLock > servicesLock
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*/
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type ServiceSentinel struct {
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// 服务监控任务上报通道
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serviceReportChannel chan ReportData // 服务状态汇报管道
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// 服务监控任务调度通道
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dispatchBus chan<- model.Service
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serviceResponseDataStoreLock sync.RWMutex
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serviceStatusToday map[uint64]*_TodayStatsOfService // [service_id] -> _TodayStatsOfService
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serviceCurrentStatusIndex map[uint64]*indexStore // [service_id] -> 该监控ID对应的 serviceCurrentStatusData 的最新索引下标
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serviceCurrentStatusData map[uint64][]*pb.TaskResult // [service_id] -> []model.ServiceHistory
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serviceResponseDataStoreCurrentUp map[uint64]uint64 // [service_id] -> 当前服务在线计数
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serviceResponseDataStoreCurrentDown map[uint64]uint64 // [service_id] -> 当前服务离线计数
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serviceResponseDataStoreCurrentAvgDelay map[uint64]float32 // [service_id] -> 当前服务离线计数
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serviceResponsePing map[uint64]map[uint64]*pingStore // [service_id] -> ClientID -> delay
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lastStatus map[uint64]int
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tlsCertCache map[uint64]string
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ServicesLock sync.RWMutex
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ServiceListLock sync.RWMutex
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Services map[uint64]*model.Service
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ServiceList []*model.Service
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// 30天数据缓存
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monthlyStatusLock sync.Mutex
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monthlyStatus map[uint64]*serviceResponseItem
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}
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type indexStore struct {
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index int
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t time.Time
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}
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type pingStore struct {
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count int
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ping float32
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}
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func (ss *ServiceSentinel) refreshMonthlyServiceStatus() {
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// 刷新数据防止无人访问
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ss.LoadStats()
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// 将数据往前刷一天
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ss.serviceResponseDataStoreLock.Lock()
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defer ss.serviceResponseDataStoreLock.Unlock()
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ss.monthlyStatusLock.Lock()
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defer ss.monthlyStatusLock.Unlock()
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for k, v := range ss.monthlyStatus {
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for i := 0; i < len(v.Up)-1; i++ {
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if i == 0 {
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// 30 天在线率，减去已经出30天之外的数据
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v.TotalDown -= uint64(v.Down[i])
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v.TotalUp -= uint64(v.Up[i])
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}
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v.Up[i], v.Down[i], v.Delay[i] = v.Up[i+1], v.Down[i+1], v.Delay[i+1]
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}
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v.Up[29] = 0
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v.Down[29] = 0
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v.Delay[29] = 0
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// 清理前一天数据
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ss.serviceResponseDataStoreCurrentUp[k] = 0
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ss.serviceResponseDataStoreCurrentDown[k] = 0
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ss.serviceResponseDataStoreCurrentAvgDelay[k] = 0
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ss.serviceStatusToday[k].Delay = 0
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ss.serviceStatusToday[k].Up = 0
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ss.serviceStatusToday[k].Down = 0
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}
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}
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// Dispatch 将传入的 ReportData 传给 服务状态汇报管道
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func (ss *ServiceSentinel) Dispatch(r ReportData) {
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ss.serviceReportChannel <- r
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}
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func (ss *ServiceSentinel) UpdateServiceList() {
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ss.ServicesLock.RLock()
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defer ss.ServicesLock.RUnlock()
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ss.ServiceListLock.Lock()
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defer ss.ServiceListLock.Unlock()
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ss.ServiceList = utils.MapValuesToSlice(ss.Services)
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slices.SortFunc(ss.ServiceList, func(a, b *model.Service) int {
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return cmp.Compare(a.ID, b.ID)
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})
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}
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// loadServiceHistory 加载服务监控器的历史状态信息
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func (ss *ServiceSentinel) loadServiceHistory() {
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var services []*model.Service
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err := DB.Find(&services).Error
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if err != nil {
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panic(err)
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}
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for i := 0; i < len(services); i++ {
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task := *services[i]
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// 通过cron定时将服务监控任务传递给任务调度管道
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services[i].CronJobID, err = Cron.AddFunc(task.CronSpec(), func() {
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ss.dispatchBus <- task
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})
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if err != nil {
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panic(err)
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}
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ss.Services[services[i].ID] = services[i]
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ss.serviceCurrentStatusData[services[i].ID] = make([]*pb.TaskResult, _CurrentStatusSize)
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ss.serviceStatusToday[services[i].ID] = &_TodayStatsOfService{}
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}
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ss.ServiceList = services
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year, month, day := time.Now().Date()
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today := time.Date(year, month, day, 0, 0, 0, 0, Loc)
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for i := 0; i < len(services); i++ {
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ServiceSentinelShared.monthlyStatus[services[i].ID] = &serviceResponseItem{
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service: services[i],
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ServiceResponseItem: model.ServiceResponseItem{
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Delay: &[30]float32{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Up: &[30]int{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Down: &[30]int{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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},
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}
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}
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// 加载服务监控历史记录
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var mhs []model.ServiceHistory
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DB.Where("created_at > ? AND created_at < ?", today.AddDate(0, 0, -29), today).Find(&mhs)
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var delayCount = make(map[int]int)
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for i := 0; i < len(mhs); i++ {
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dayIndex := 28 - (int(today.Sub(mhs[i].CreatedAt).Hours()) / 24)
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if dayIndex < 0 {
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continue
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}
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].Delay[dayIndex] = (ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].Delay[dayIndex]*float32(delayCount[dayIndex]) + mhs[i].AvgDelay) / float32(delayCount[dayIndex]+1)
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delayCount[dayIndex]++
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].Up[dayIndex] += int(mhs[i].Up)
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].TotalUp += mhs[i].Up
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].Down[dayIndex] += int(mhs[i].Down)
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ServiceSentinelShared.monthlyStatus[mhs[i].ServiceID].TotalDown += mhs[i].Down
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}
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}
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func (ss *ServiceSentinel) OnServiceUpdate(m model.Service) error {
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ss.serviceResponseDataStoreLock.Lock()
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defer ss.serviceResponseDataStoreLock.Unlock()
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ss.monthlyStatusLock.Lock()
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defer ss.monthlyStatusLock.Unlock()
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ss.ServicesLock.Lock()
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defer ss.ServicesLock.Unlock()
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var err error
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// 写入新任务
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m.CronJobID, err = Cron.AddFunc(m.CronSpec(), func() {
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ss.dispatchBus <- m
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})
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if err != nil {
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return err
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}
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if ss.Services[m.ID] != nil {
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// 停掉旧任务
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Cron.Remove(ss.Services[m.ID].CronJobID)
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} else {
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// 新任务初始化数据
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ss.monthlyStatus[m.ID] = &serviceResponseItem{
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service: &m,
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ServiceResponseItem: model.ServiceResponseItem{
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Delay: &[30]float32{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Up: &[30]int{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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Down: &[30]int{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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},
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}
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ss.serviceCurrentStatusData[m.ID] = make([]*pb.TaskResult, _CurrentStatusSize)
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ss.serviceStatusToday[m.ID] = &_TodayStatsOfService{}
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}
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// 更新这个任务
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ss.Services[m.ID] = &m
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return nil
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}
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func (ss *ServiceSentinel) OnServiceDelete(ids []uint64) {
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ss.serviceResponseDataStoreLock.Lock()
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defer ss.serviceResponseDataStoreLock.Unlock()
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ss.monthlyStatusLock.Lock()
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defer ss.monthlyStatusLock.Unlock()
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ss.ServicesLock.Lock()
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defer ss.ServicesLock.Unlock()
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for _, id := range ids {
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delete(ss.serviceCurrentStatusIndex, id)
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delete(ss.serviceCurrentStatusData, id)
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delete(ss.lastStatus, id)
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delete(ss.serviceResponseDataStoreCurrentUp, id)
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delete(ss.serviceResponseDataStoreCurrentDown, id)
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delete(ss.serviceResponseDataStoreCurrentAvgDelay, id)
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delete(ss.tlsCertCache, id)
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delete(ss.serviceStatusToday, id)
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// 停掉定时任务
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Cron.Remove(ss.Services[id].CronJobID)
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delete(ss.Services, id)
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delete(ss.monthlyStatus, id)
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}
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}
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func (ss *ServiceSentinel) LoadStats() map[uint64]*serviceResponseItem {
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ss.ServicesLock.RLock()
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defer ss.ServicesLock.RUnlock()
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ss.serviceResponseDataStoreLock.RLock()
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defer ss.serviceResponseDataStoreLock.RUnlock()
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ss.monthlyStatusLock.Lock()
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defer ss.monthlyStatusLock.Unlock()
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// 刷新最新一天的数据
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for k := range ss.Services {
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ss.monthlyStatus[k].service = ss.Services[k]
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v := ss.serviceStatusToday[k]
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// 30 天在线率，
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// |- 减去上次加的旧当天数据，防止出现重复计数
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ss.monthlyStatus[k].TotalUp -= uint64(ss.monthlyStatus[k].Up[29])
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ss.monthlyStatus[k].TotalDown -= uint64(ss.monthlyStatus[k].Down[29])
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// |- 加上当日数据
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ss.monthlyStatus[k].TotalUp += uint64(v.Up)
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ss.monthlyStatus[k].TotalDown += uint64(v.Down)
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ss.monthlyStatus[k].Up[29] = v.Up
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ss.monthlyStatus[k].Down[29] = v.Down
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ss.monthlyStatus[k].Delay[29] = v.Delay
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}
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// 最后 5 分钟的状态 与 service 对象填充
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for k, v := range ss.serviceResponseDataStoreCurrentDown {
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ss.monthlyStatus[k].CurrentDown = v
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}
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for k, v := range ss.serviceResponseDataStoreCurrentUp {
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ss.monthlyStatus[k].CurrentUp = v
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}
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return ss.monthlyStatus
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}
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func (ss *ServiceSentinel) CopyStats() map[uint64]model.ServiceResponseItem {
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var stats map[uint64]*serviceResponseItem
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copier.Copy(&stats, ss.LoadStats())
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sri := make(map[uint64]model.ServiceResponseItem)
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for k, service := range stats {
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if !service.service.EnableShowInService {
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delete(stats, k)
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continue
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}
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service.ServiceName = service.service.Name
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sri[k] = service.ServiceResponseItem
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}
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return sri
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}
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// worker 服务监控的实际工作流程
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func (ss *ServiceSentinel) worker() {
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// 从服务状态汇报管道获取汇报的服务数据
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for r := range ss.serviceReportChannel {
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if ss.Services[r.Data.GetId()] == nil || ss.Services[r.Data.GetId()].ID == 0 {
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log.Printf("NEZHA>> Incorrect service monitor report %+v", r)
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continue
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}
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mh := r.Data
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if mh.Type == model.TaskTypeTCPPing || mh.Type == model.TaskTypeICMPPing {
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serviceTcpMap, ok := ss.serviceResponsePing[mh.GetId()]
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if !ok {
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serviceTcpMap = make(map[uint64]*pingStore)
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ss.serviceResponsePing[mh.GetId()] = serviceTcpMap
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}
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ts, ok := serviceTcpMap[r.Reporter]
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if !ok {
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ts = &pingStore{}
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}
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ts.count++
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ts.ping = (ts.ping*float32(ts.count-1) + mh.Delay) / float32(ts.count)
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if ts.count == Conf.AvgPingCount {
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ts.count = 0
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if err := DB.Create(&model.ServiceHistory{
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ServiceID: mh.GetId(),
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AvgDelay: ts.ping,
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Data: mh.Data,
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ServerID: r.Reporter,
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}).Error; err != nil {
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log.Printf("NEZHA>> Failed to save service monitor metrics: %v", err)
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}
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}
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serviceTcpMap[r.Reporter] = ts
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}
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ss.serviceResponseDataStoreLock.Lock()
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// 写入当天状态
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if mh.Successful {
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ss.serviceStatusToday[mh.GetId()].Delay = (ss.serviceStatusToday[mh.
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GetId()].Delay*float32(ss.serviceStatusToday[mh.GetId()].Up) +
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mh.Delay) / float32(ss.serviceStatusToday[mh.GetId()].Up+1)
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ss.serviceStatusToday[mh.GetId()].Up++
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} else {
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ss.serviceStatusToday[mh.GetId()].Down++
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}
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currentTime := time.Now()
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if ss.serviceCurrentStatusIndex[mh.GetId()] == nil {
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ss.serviceCurrentStatusIndex[mh.GetId()] = &indexStore{
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t: currentTime,
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index: 0,
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}
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}
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// 写入当前数据
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if ss.serviceCurrentStatusIndex[mh.GetId()].t.Before(currentTime) {
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ss.serviceCurrentStatusIndex[mh.GetId()].t = currentTime.Add(30 * time.Second)
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ss.serviceCurrentStatusData[mh.GetId()][ss.serviceCurrentStatusIndex[mh.GetId()].index] = mh
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ss.serviceCurrentStatusIndex[mh.GetId()].index++
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}
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// 更新当前状态
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ss.serviceResponseDataStoreCurrentUp[mh.GetId()] = 0
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ss.serviceResponseDataStoreCurrentDown[mh.GetId()] = 0
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ss.serviceResponseDataStoreCurrentAvgDelay[mh.GetId()] = 0
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// 永远是最新的 30 个数据的状态 [01:00, 02:00, 03:00] -> [04:00, 02:00, 03: 00]
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for i := 0; i < len(ss.serviceCurrentStatusData[mh.GetId()]); i++ {
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if ss.serviceCurrentStatusData[mh.GetId()][i].GetId() > 0 {
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if ss.serviceCurrentStatusData[mh.GetId()][i].Successful {
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ss.serviceResponseDataStoreCurrentUp[mh.GetId()]++
|
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ss.serviceResponseDataStoreCurrentAvgDelay[mh.GetId()] = (ss.serviceResponseDataStoreCurrentAvgDelay[mh.GetId()]*float32(ss.serviceResponseDataStoreCurrentUp[mh.GetId()]-1) + ss.serviceCurrentStatusData[mh.GetId()][i].Delay) / float32(ss.serviceResponseDataStoreCurrentUp[mh.GetId()])
|
||
} else {
|
||
ss.serviceResponseDataStoreCurrentDown[mh.GetId()]++
|
||
}
|
||
}
|
||
}
|
||
|
||
// 计算在线率，
|
||
var upPercent uint64 = 0
|
||
if ss.serviceResponseDataStoreCurrentDown[mh.GetId()]+ss.serviceResponseDataStoreCurrentUp[mh.GetId()] > 0 {
|
||
upPercent = ss.serviceResponseDataStoreCurrentUp[mh.GetId()] * 100 / (ss.serviceResponseDataStoreCurrentDown[mh.GetId()] + ss.serviceResponseDataStoreCurrentUp[mh.GetId()])
|
||
}
|
||
stateCode := GetStatusCode(upPercent)
|
||
|
||
// 数据持久化
|
||
if ss.serviceCurrentStatusIndex[mh.GetId()].index == _CurrentStatusSize {
|
||
ss.serviceCurrentStatusIndex[mh.GetId()] = &indexStore{
|
||
index: 0,
|
||
t: currentTime,
|
||
}
|
||
if err := DB.Create(&model.ServiceHistory{
|
||
ServiceID: mh.GetId(),
|
||
AvgDelay: ss.serviceResponseDataStoreCurrentAvgDelay[mh.GetId()],
|
||
Data: mh.Data,
|
||
Up: ss.serviceResponseDataStoreCurrentUp[mh.GetId()],
|
||
Down: ss.serviceResponseDataStoreCurrentDown[mh.GetId()],
|
||
}).Error; err != nil {
|
||
log.Printf("NEZHA>> Failed to save service monitor metrics: %v", err)
|
||
}
|
||
}
|
||
|
||
// 延迟报警
|
||
if mh.Delay > 0 {
|
||
ss.ServicesLock.RLock()
|
||
if ss.Services[mh.GetId()].LatencyNotify {
|
||
notificationGroupID := ss.Services[mh.GetId()].NotificationGroupID
|
||
minMuteLabel := NotificationMuteLabel.ServiceLatencyMin(mh.GetId())
|
||
maxMuteLabel := NotificationMuteLabel.ServiceLatencyMax(mh.GetId())
|
||
if mh.Delay > ss.Services[mh.GetId()].MaxLatency {
|
||
// 延迟超过最大值
|
||
ServerLock.RLock()
|
||
reporterServer := ServerList[r.Reporter]
|
||
msg := Localizer.Tf("[Latency] %s %2f > %2f, Reporter: %s", ss.Services[mh.GetId()].Name, mh.Delay, ss.Services[mh.GetId()].MaxLatency, reporterServer.Name)
|
||
go SendNotification(notificationGroupID, msg, minMuteLabel)
|
||
ServerLock.RUnlock()
|
||
} else if mh.Delay < ss.Services[mh.GetId()].MinLatency {
|
||
// 延迟低于最小值
|
||
ServerLock.RLock()
|
||
reporterServer := ServerList[r.Reporter]
|
||
msg := Localizer.Tf("[Latency] %s %2f < %2f, Reporter: %s", ss.Services[mh.GetId()].Name, mh.Delay, ss.Services[mh.GetId()].MinLatency, reporterServer.Name)
|
||
go SendNotification(notificationGroupID, msg, maxMuteLabel)
|
||
ServerLock.RUnlock()
|
||
} else {
|
||
// 正常延迟， 清除静音缓存
|
||
UnMuteNotification(notificationGroupID, minMuteLabel)
|
||
UnMuteNotification(notificationGroupID, maxMuteLabel)
|
||
}
|
||
}
|
||
ss.ServicesLock.RUnlock()
|
||
}
|
||
|
||
// 状态变更报警+触发任务执行
|
||
if stateCode == StatusDown || stateCode != ss.lastStatus[mh.GetId()] {
|
||
ss.ServicesLock.Lock()
|
||
lastStatus := ss.lastStatus[mh.GetId()]
|
||
// 存储新的状态值
|
||
ss.lastStatus[mh.GetId()] = stateCode
|
||
|
||
// 判断是否需要发送通知
|
||
isNeedSendNotification := ss.Services[mh.GetId()].Notify && (lastStatus != 0 || stateCode == StatusDown)
|
||
if isNeedSendNotification {
|
||
ServerLock.RLock()
|
||
|
||
reporterServer := ServerList[r.Reporter]
|
||
notificationGroupID := ss.Services[mh.GetId()].NotificationGroupID
|
||
notificationMsg := Localizer.Tf("[%s] %s Reporter: %s, Error: %s", StatusCodeToString(stateCode), ss.Services[mh.GetId()].Name, reporterServer.Name, mh.Data)
|
||
muteLabel := NotificationMuteLabel.ServiceStateChanged(mh.GetId())
|
||
|
||
// 状态变更时，清除静音缓存
|
||
if stateCode != lastStatus {
|
||
UnMuteNotification(notificationGroupID, muteLabel)
|
||
}
|
||
|
||
go SendNotification(notificationGroupID, notificationMsg, muteLabel)
|
||
ServerLock.RUnlock()
|
||
}
|
||
|
||
// 判断是否需要触发任务
|
||
isNeedTriggerTask := ss.Services[mh.GetId()].EnableTriggerTask && lastStatus != 0
|
||
if isNeedTriggerTask {
|
||
ServerLock.RLock()
|
||
reporterServer := ServerList[r.Reporter]
|
||
ServerLock.RUnlock()
|
||
|
||
if stateCode == StatusGood && lastStatus != stateCode {
|
||
// 当前状态正常 前序状态非正常时 触发恢复任务
|
||
go SendTriggerTasks(ss.Services[mh.GetId()].RecoverTriggerTasks, reporterServer.ID)
|
||
} else if lastStatus == StatusGood && lastStatus != stateCode {
|
||
// 前序状态正常 当前状态非正常时 触发失败任务
|
||
go SendTriggerTasks(ss.Services[mh.GetId()].FailTriggerTasks, reporterServer.ID)
|
||
}
|
||
}
|
||
|
||
ss.ServicesLock.Unlock()
|
||
}
|
||
ss.serviceResponseDataStoreLock.Unlock()
|
||
|
||
// TLS 证书报警
|
||
var errMsg string
|
||
if strings.HasPrefix(mh.Data, "SSL证书错误：") {
|
||
// i/o timeout、connection timeout、EOF 错误
|
||
if !strings.HasSuffix(mh.Data, "timeout") &&
|
||
!strings.HasSuffix(mh.Data, "EOF") &&
|
||
!strings.HasSuffix(mh.Data, "timed out") {
|
||
errMsg = mh.Data
|
||
ss.ServicesLock.RLock()
|
||
if ss.Services[mh.GetId()].Notify {
|
||
muteLabel := NotificationMuteLabel.ServiceTLS(mh.GetId(), "network")
|
||
go SendNotification(ss.Services[mh.GetId()].NotificationGroupID, Localizer.Tf("[TLS] Fetch cert info failed, Reporter: %s, Error: %s", ss.Services[mh.GetId()].Name, errMsg), muteLabel)
|
||
}
|
||
ss.ServicesLock.RUnlock()
|
||
|
||
}
|
||
} else {
|
||
// 清除网络错误静音缓存
|
||
UnMuteNotification(ss.Services[mh.GetId()].NotificationGroupID, NotificationMuteLabel.ServiceTLS(mh.GetId(), "network"))
|
||
|
||
var newCert = strings.Split(mh.Data, "|")
|
||
if len(newCert) > 1 {
|
||
ss.ServicesLock.Lock()
|
||
enableNotify := ss.Services[mh.GetId()].Notify
|
||
|
||
// 首次获取证书信息时，缓存证书信息
|
||
if ss.tlsCertCache[mh.GetId()] == "" {
|
||
ss.tlsCertCache[mh.GetId()] = mh.Data
|
||
}
|
||
|
||
oldCert := strings.Split(ss.tlsCertCache[mh.GetId()], "|")
|
||
isCertChanged := false
|
||
expiresOld, _ := time.Parse("2006-01-02 15:04:05 -0700 MST", oldCert[1])
|
||
expiresNew, _ := time.Parse("2006-01-02 15:04:05 -0700 MST", newCert[1])
|
||
|
||
// 证书变更时，更新缓存
|
||
if oldCert[0] != newCert[0] && !expiresNew.Equal(expiresOld) {
|
||
isCertChanged = true
|
||
ss.tlsCertCache[mh.GetId()] = mh.Data
|
||
}
|
||
|
||
notificationGroupID := ss.Services[mh.GetId()].NotificationGroupID
|
||
serviceName := ss.Services[mh.GetId()].Name
|
||
ss.ServicesLock.Unlock()
|
||
|
||
// 需要发送提醒
|
||
if enableNotify {
|
||
// 证书过期提醒
|
||
if expiresNew.Before(time.Now().AddDate(0, 0, 7)) {
|
||
expiresTimeStr := expiresNew.Format("2006-01-02 15:04:05")
|
||
errMsg = Localizer.Tf(
|
||
"The TLS certificate will expire within seven days. Expiration time: %s",
|
||
expiresTimeStr,
|
||
)
|
||
|
||
// 静音规则： 服务id+证书过期时间
|
||
// 用于避免多个监测点对相同证书同时报警
|
||
muteLabel := NotificationMuteLabel.ServiceTLS(mh.GetId(), fmt.Sprintf("expire_%s", expiresTimeStr))
|
||
go SendNotification(notificationGroupID, fmt.Sprintf("[TLS] %s %s", serviceName, errMsg), muteLabel)
|
||
}
|
||
|
||
// 证书变更提醒
|
||
if isCertChanged {
|
||
errMsg = Localizer.Tf(
|
||
"TLS certificate changed, old: issuer %s, expires at %s; new: issuer %s, expires at %s",
|
||
oldCert[0], expiresOld.Format("2006-01-02 15:04:05"), newCert[0], expiresNew.Format("2006-01-02 15:04:05"))
|
||
|
||
// 证书变更后会自动更新缓存，所以不需要静音
|
||
go SendNotification(notificationGroupID, fmt.Sprintf("[TLS] %s %s", serviceName, errMsg), nil)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
const (
|
||
_ = iota
|
||
StatusNoData
|
||
StatusGood
|
||
StatusLowAvailability
|
||
StatusDown
|
||
)
|
||
|
||
func GetStatusCode[T float32 | uint64](percent T) int {
|
||
if percent == 0 {
|
||
return StatusNoData
|
||
}
|
||
if percent > 95 {
|
||
return StatusGood
|
||
}
|
||
if percent > 80 {
|
||
return StatusLowAvailability
|
||
}
|
||
return StatusDown
|
||
}
|
||
|
||
func StatusCodeToString(statusCode int) string {
|
||
switch statusCode {
|
||
case StatusNoData:
|
||
return Localizer.T("No Data")
|
||
case StatusGood:
|
||
return Localizer.T("Good")
|
||
case StatusLowAvailability:
|
||
return Localizer.T("Low Availability")
|
||
case StatusDown:
|
||
return Localizer.T("Down")
|
||
default:
|
||
return ""
|
||
}
|
||
}
|