opsx
3ea7f2dcc6
- homepage/:品牌落地页(Hero/特性/快速开始),参考 opsxapi 站点风格,绿色品牌系 - docs/:docsify 文档站 + user-guide 十篇手册(安装/向导/采集/查询/分析/告警/授权/备份/FAQ) - 后端 serveStaticDir 挂载 /docs 与 /homepage(可执行文件相对定位,独立于前端 dist)
107 lines
3.1 KiB
Go
107 lines
3.1 KiB
Go
package metrics
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import (
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"sort"
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dto "github.com/prometheus/client_model/go"
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)
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// PathCount 单个路由模板的累计请求数
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type PathCount struct {
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Path string `json:"path"`
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Count float64 `json:"count"`
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}
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// Summary 面板自监控快照:从 registry 聚合出的精简结构(/api/v1/system/metrics-summary)
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type Summary struct {
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HTTP struct {
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Total float64 `json:"total"`
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ByStatus map[string]float64 `json:"byStatus"`
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InFlight float64 `json:"inFlight"`
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TopPaths []PathCount `json:"topPaths"`
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} `json:"http"`
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DB struct {
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SizeBytes float64 `json:"sizeBytes"`
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Saves float64 `json:"saves"`
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SaveFailures float64 `json:"saveFailures"`
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Records map[string]float64 `json:"records"`
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} `json:"db"`
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Alerts struct {
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Evaluations map[string]float64 `json:"evaluations"`
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} `json:"alerts"`
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Loki struct {
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Queries map[string]float64 `json:"queries"`
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} `json:"loki"`
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Runtime struct {
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Goroutines float64 `json:"goroutines"`
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GoVersion string `json:"goVersion"`
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Version string `json:"version"`
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} `json:"runtime"`
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}
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// Snapshot 聚合当前指标为面板结构(聚合失败返回零值,监控页降级展示)
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func Snapshot() Summary {
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s := Summary{}
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s.HTTP.ByStatus = map[string]float64{}
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s.DB.Records = map[string]float64{}
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s.Alerts.Evaluations = map[string]float64{}
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s.Loki.Queries = map[string]float64{}
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families, err := registry.Gather()
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if err != nil {
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return s
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}
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byPath := map[string]float64{}
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for _, mf := range families {
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for _, m := range mf.GetMetric() {
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labels := labelMap(m)
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switch mf.GetName() {
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case "lokistack_http_requests_total":
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v := m.GetCounter().GetValue()
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s.HTTP.Total += v
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s.HTTP.ByStatus[labels["status"]] += v
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byPath[labels["path"]] += v
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case "lokistack_http_in_flight_requests":
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s.HTTP.InFlight = m.GetGauge().GetValue()
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case "lokistack_db_size_bytes":
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s.DB.SizeBytes = m.GetGauge().GetValue()
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case "lokistack_db_save_total":
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v := m.GetCounter().GetValue()
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s.DB.Saves += v
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if labels["result"] != "success" {
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s.DB.SaveFailures += v
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}
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case "lokistack_db_records":
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s.DB.Records[labels["collection"]] = m.GetGauge().GetValue()
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case "lokistack_alert_evaluations_total":
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s.Alerts.Evaluations[labels["result"]] += m.GetCounter().GetValue()
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case "lokistack_loki_queries_total":
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s.Loki.Queries[labels["result"]] += m.GetCounter().GetValue()
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case "go_goroutines":
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s.Runtime.Goroutines = m.GetGauge().GetValue()
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case "lokistack_build_info":
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s.Runtime.GoVersion = labels["go_version"]
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s.Runtime.Version = labels["version"]
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}
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}
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}
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paths := make([]PathCount, 0, len(byPath))
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for p, c := range byPath {
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paths = append(paths, PathCount{Path: p, Count: c})
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}
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sort.Slice(paths, func(i, j int) bool { return paths[i].Count > paths[j].Count })
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if len(paths) > 8 {
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paths = paths[:8]
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}
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s.HTTP.TopPaths = paths
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return s
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}
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func labelMap(m *dto.Metric) map[string]string {
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out := map[string]string{}
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for _, lp := range m.GetLabel() {
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out[lp.GetName()] = lp.GetValue()
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}
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return out
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}
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