feat: 优化监控仪表盘 UI
- 添加 appbar 导航栏，支持 Chart/Queues 视图切换 - appbar 切换使用 history API，支持浏览器前进/后退 - 图表视图占满整个可视区域 - queue-modal 共享 appbar 样式 - 修复 queue tab count 字段名大小写问题 - tooltip 跟随鼠标显示在右下方，移除箭头 - 图表 canvas 鼠标样式改为准星 - pause/resume 队列后刷新列表 - example 添加 flag 配置参数
This commit is contained in:
605
x/monitor/monitor.go
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605
x/monitor/monitor.go
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@@ -0,0 +1,605 @@
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// Package monitor 提供 taskq 的 HTTP 监控服务
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package monitor
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import (
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"embed"
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"encoding/json"
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"fmt"
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"io/fs"
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"net/http"
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"sort"
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"strconv"
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"strings"
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"sync"
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"time"
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"code.tczkiot.com/wlw/taskq/x/inspector"
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)
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//go:embed ui/*
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var uiFS embed.FS
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// Options 配置监控服务的选项
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type Options struct {
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// Inspector 检查器实例（必需）
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Inspector *inspector.Inspector
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// Queues 队列优先级映射（必需）
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Queues map[string]int
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// RootPath 监控服务的根路径，默认为 "/monitor"
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RootPath string
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// ReadOnly 是否只读模式，禁用所有修改操作，默认为 false
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ReadOnly bool
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}
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// Monitor 监控服务的 HTTP 处理器
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type Monitor struct {
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router *http.ServeMux
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rootPath string
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readOnly bool
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closeCh chan struct{}
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closeOnce sync.Once
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inspector *inspector.Inspector
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queues map[string]int
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}
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// New 创建新的监控服务
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func New(opts Options) (*Monitor, error) {
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if opts.Inspector == nil {
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return nil, fmt.Errorf("monitor: inspector is required")
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}
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if opts.Queues == nil {
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return nil, fmt.Errorf("monitor: queues is required")
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}
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// 设置默认值
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if opts.RootPath == "" {
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opts.RootPath = "/monitor"
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}
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// 确保路径以 / 开头且不以 / 结尾
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if !strings.HasPrefix(opts.RootPath, "/") {
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opts.RootPath = "/" + opts.RootPath
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}
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opts.RootPath = strings.TrimSuffix(opts.RootPath, "/")
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m := &Monitor{
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router: http.NewServeMux(),
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rootPath: opts.RootPath,
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readOnly: opts.ReadOnly,
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closeCh: make(chan struct{}),
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inspector: opts.Inspector,
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queues: opts.Queues,
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}
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m.setupRoutes()
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return m, nil
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}
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// ServeHTTP 实现 http.Handler 接口
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func (m *Monitor) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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m.router.ServeHTTP(w, r)
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}
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// RootPath 返回监控服务的根路径
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func (m *Monitor) RootPath() string {
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return m.rootPath
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}
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// Close 关闭监控服务
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func (m *Monitor) Close() error {
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m.closeOnce.Do(func() {
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close(m.closeCh)
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})
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return nil
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}
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// setupRoutes 设置路由
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func (m *Monitor) setupRoutes() {
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// API 路由
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apiPath := m.rootPath + "/api/"
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m.router.HandleFunc(apiPath+"queues", m.handleQueues)
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m.router.HandleFunc(apiPath+"queues/", m.handleQueueDetail)
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m.router.HandleFunc(apiPath+"tasks/", m.handleTasks)
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m.router.HandleFunc(apiPath+"stats/", m.handleStats)
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m.router.HandleFunc(apiPath+"sse", m.handleSSE)
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// 静态文件路由
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uiSubFS, _ := fs.Sub(uiFS, "ui")
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fileServer := http.FileServer(http.FS(uiSubFS))
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m.router.Handle(m.rootPath+"/static/", http.StripPrefix(m.rootPath+"/static/", fileServer))
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// 主页路由（包含 History API 的路由）
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m.router.HandleFunc(m.rootPath+"/queues/", m.handleIndex)
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m.router.HandleFunc(m.rootPath+"/", m.handleIndex)
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m.router.HandleFunc(m.rootPath, m.handleIndex)
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}
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// handleStats 处理队列统计数据请求
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func (m *Monitor) handleStats(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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// 从 URL 中提取队列名称（可选，为空则查询所有队列汇总）
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path := strings.TrimPrefix(r.URL.Path, m.rootPath+"/api/stats/")
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queueName := strings.TrimSuffix(path, "/")
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// 构建查询参数
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query := inspector.StatsQuery{
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Queue: queueName,
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Limit: 500,
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}
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// 解析 limit 参数
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if l := r.URL.Query().Get("limit"); l != "" {
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if parsed, err := strconv.Atoi(l); err == nil && parsed > 0 && parsed <= 10000 {
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query.Limit = parsed
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}
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}
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// 解析 start 参数（Unix 时间戳）
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if s := r.URL.Query().Get("start"); s != "" {
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if parsed, err := strconv.ParseInt(s, 10, 64); err == nil && parsed > 0 {
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query.Start = parsed
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}
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}
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// 解析 end 参数（Unix 时间戳）
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if e := r.URL.Query().Get("end"); e != "" {
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if parsed, err := strconv.ParseInt(e, 10, 64); err == nil && parsed > 0 {
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query.End = parsed
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}
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}
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stats, err := m.inspector.QueryStats(query)
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if err != nil {
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http.Error(w, fmt.Sprintf("Failed to get stats: %v", err), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(stats)
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}
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// queueInfoJSON 用于 JSON 输出的队列信息
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type queueInfoJSON struct {
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Name string `json:"name"`
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Priority int `json:"priority"`
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Size int `json:"size"`
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Active int `json:"active"`
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Pending int `json:"pending"`
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Scheduled int `json:"scheduled"`
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Retry int `json:"retry"`
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Archived int `json:"archived"`
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Completed int `json:"completed"`
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Processed int `json:"processed"`
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Failed int `json:"failed"`
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Paused bool `json:"paused"`
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MemoryUsage int64 `json:"memory_usage"`
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Latency int64 `json:"latency"`
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}
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// handleQueues 处理队列列表请求
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func (m *Monitor) handleQueues(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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var queueInfos []queueInfoJSON
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// 首先显示所有注册的队列（即使Redis中还没有任务）
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for queueName, priority := range m.queues {
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info, err := m.inspector.GetQueueInfo(queueName)
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if err != nil {
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// 如果队列不存在，创建一个空的状态
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queueInfos = append(queueInfos, queueInfoJSON{
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Name: queueName,
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Priority: priority,
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})
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} else {
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queueInfos = append(queueInfos, queueInfoJSON{
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Name: queueName,
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Priority: priority,
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Size: info.Size,
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Active: info.Active,
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Pending: info.Pending,
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Scheduled: info.Scheduled,
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Retry: info.Retry,
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Archived: info.Archived,
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Completed: info.Completed,
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Processed: info.Processed,
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Failed: info.Failed,
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Paused: info.Paused,
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MemoryUsage: info.MemoryUsage,
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Latency: info.LatencyMS,
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})
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}
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}
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// 按优先级排序
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sort.Slice(queueInfos, func(i, j int) bool {
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return queueInfos[i].Priority > queueInfos[j].Priority
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})
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(queueInfos)
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}
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// handleQueueDetail 处理队列详情请求和队列操作
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func (m *Monitor) handleQueueDetail(w http.ResponseWriter, r *http.Request) {
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// 从 URL 中提取队列名称
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path := strings.TrimPrefix(r.URL.Path, m.rootPath+"/api/queues/")
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parts := strings.Split(path, "/")
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if len(parts) == 0 || parts[0] == "" {
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http.Error(w, "Queue name is required", http.StatusBadRequest)
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return
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}
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queueName := parts[0]
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// 检查队列是否已注册
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if _, exists := m.queues[queueName]; !exists {
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http.Error(w, "Queue not found", http.StatusNotFound)
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return
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}
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// 处理暂停/恢复请求
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if r.Method == http.MethodPost && len(parts) >= 2 {
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if m.readOnly {
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http.Error(w, "Operation not allowed in read-only mode", http.StatusForbidden)
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return
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}
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action := parts[1]
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switch action {
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case "pause":
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if err := m.inspector.PauseQueue(queueName); err != nil {
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http.Error(w, fmt.Sprintf("Failed to pause queue: %v", err), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(map[string]string{"status": "paused"})
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return
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case "unpause":
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if err := m.inspector.UnpauseQueue(queueName); err != nil {
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http.Error(w, fmt.Sprintf("Failed to unpause queue: %v", err), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(map[string]string{"status": "unpaused"})
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return
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default:
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http.Error(w, "Invalid action", http.StatusBadRequest)
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return
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}
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}
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if r.Method != http.MethodGet {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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// 获取队列详细信息
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info, err := m.inspector.GetQueueInfo(queueName)
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if err != nil {
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// 如果队列在 Redis 中不存在，返回空状态
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if strings.Contains(err.Error(), "queue not found") {
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emptyStats := map[string]any{
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"queue": queueName,
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"active": 0,
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"pending": 0,
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"retry": 0,
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"archived": 0,
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"completed": 0,
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"processed": 0,
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"failed": 0,
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"paused": false,
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(emptyStats)
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return
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}
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http.Error(w, fmt.Sprintf("Failed to get queue info: %v", err), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(info)
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}
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// taskInfoJSON 转换任务信息用于 JSON 输出
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type taskInfoJSON struct {
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ID string `json:"id"`
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Type string `json:"type"`
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Payload string `json:"payload"`
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Queue string `json:"queue"`
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Retried int `json:"retried"`
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LastFailed string `json:"last_failed,omitempty"`
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LastError string `json:"last_error,omitempty"`
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NextProcess string `json:"next_process,omitempty"`
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CompletedAt string `json:"completed_at,omitempty"`
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}
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// handleTasks 处理任务列表请求和任务操作
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func (m *Monitor) handleTasks(w http.ResponseWriter, r *http.Request) {
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// 从 URL 中提取队列名称和任务状态
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path := strings.TrimPrefix(r.URL.Path, m.rootPath+"/api/tasks/")
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parts := strings.Split(path, "/")
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if len(parts) < 2 {
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http.Error(w, "Queue name and task state are required", http.StatusBadRequest)
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return
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}
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queueName := parts[0]
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taskState := parts[1]
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// 处理重试请求: POST /api/tasks/{queue}/archived/{taskId}/retry
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if r.Method == http.MethodPost && len(parts) >= 4 && parts[1] == "archived" && parts[3] == "retry" {
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if m.readOnly {
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http.Error(w, "Operation not allowed in read-only mode", http.StatusForbidden)
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return
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}
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taskID := parts[2]
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m.handleRetryTask(w, r, queueName, taskID)
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return
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}
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if r.Method != http.MethodGet {
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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// 检查队列是否已注册
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if _, exists := m.queues[queueName]; !exists {
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http.Error(w, "Queue not found", http.StatusNotFound)
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return
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}
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// 解析分页参数
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page := 1
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pageSize := 20
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if p := r.URL.Query().Get("page"); p != "" {
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if parsed, err := strconv.Atoi(p); err == nil && parsed > 0 {
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page = parsed
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}
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}
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if ps := r.URL.Query().Get("page_size"); ps != "" {
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if parsed, err := strconv.Atoi(ps); err == nil && parsed > 0 && parsed <= 100 {
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pageSize = parsed
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}
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}
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// 获取队列信息以获取任务总数
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var total int
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queueInfo, queueErr := m.inspector.GetQueueInfo(queueName)
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if queueErr == nil {
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switch taskState {
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case "active":
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total = queueInfo.Active
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case "pending":
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total = queueInfo.Pending
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case "scheduled":
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total = queueInfo.Scheduled
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case "retry":
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total = queueInfo.Retry
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case "archived":
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total = queueInfo.Archived
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case "completed":
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total = queueInfo.Completed
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}
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}
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// 根据任务状态获取任务列表
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var tasks []*inspector.TaskInfo
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var err error
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switch taskState {
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case "active":
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tasks, err = m.inspector.ListActiveTasks(queueName, pageSize, page-1)
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case "pending":
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tasks, err = m.inspector.ListPendingTasks(queueName, pageSize, page-1)
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case "scheduled":
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tasks, err = m.inspector.ListScheduledTasks(queueName, pageSize, page-1)
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case "retry":
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tasks, err = m.inspector.ListRetryTasks(queueName, pageSize, page-1)
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case "archived":
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tasks, err = m.inspector.ListArchivedTasks(queueName, pageSize, page-1)
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case "completed":
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tasks, err = m.inspector.ListCompletedTasks(queueName, pageSize, page-1)
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default:
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http.Error(w, "Invalid task state. Valid states: active, pending, scheduled, retry, archived, completed", http.StatusBadRequest)
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return
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}
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// 如果队列在 Redis 中不存在（没有任务），返回空列表而不是错误
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if err != nil {
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if strings.Contains(err.Error(), "queue not found") {
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tasks = []*inspector.TaskInfo{}
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total = 0
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} else {
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http.Error(w, fmt.Sprintf("Failed to get tasks: %v", err), http.StatusInternalServerError)
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return
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}
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}
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var taskInfos []taskInfoJSON
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for _, task := range tasks {
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info := taskInfoJSON{
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ID: task.ID,
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Type: task.Type,
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Payload: string(task.Payload),
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Queue: task.Queue,
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Retried: task.Retried,
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}
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if !task.LastFailedAt.IsZero() {
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info.LastFailed = task.LastFailedAt.Format(time.RFC3339)
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}
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if task.LastErr != "" {
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info.LastError = task.LastErr
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}
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if !task.NextProcessAt.IsZero() {
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info.NextProcess = task.NextProcessAt.Format(time.RFC3339)
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}
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if !task.CompletedAt.IsZero() {
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info.CompletedAt = task.CompletedAt.Format(time.RFC3339)
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}
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taskInfos = append(taskInfos, info)
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}
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response := map[string]any{
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"tasks": taskInfos,
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"page": page,
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"page_size": pageSize,
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"total": total,
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(response)
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}
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|
||||
// handleRetryTask 重试失败任务
|
||||
func (m *Monitor) handleRetryTask(w http.ResponseWriter, r *http.Request, queueName, taskID string) {
|
||||
// 检查队列是否已注册
|
||||
if _, exists := m.queues[queueName]; !exists {
|
||||
http.Error(w, "Queue not found", http.StatusNotFound)
|
||||
return
|
||||
}
|
||||
|
||||
// 运行重试
|
||||
err := m.inspector.RunTask(queueName, taskID)
|
||||
if err != nil {
|
||||
http.Error(w, fmt.Sprintf("Failed to retry task: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
w.Header().Set("Content-Type", "application/json")
|
||||
json.NewEncoder(w).Encode(map[string]string{"status": "ok"})
|
||||
}
|
||||
|
||||
// handleIndex 处理主页请求，返回 SPA 入口页面
|
||||
func (m *Monitor) handleIndex(w http.ResponseWriter, r *http.Request) {
|
||||
if r.Method != http.MethodGet {
|
||||
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
|
||||
return
|
||||
}
|
||||
|
||||
// 读取 index.html 并替换模板变量
|
||||
indexHTML, err := uiFS.ReadFile("ui/index.html")
|
||||
if err != nil {
|
||||
http.Error(w, fmt.Sprintf("Failed to read index.html: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
// 替换模板变量
|
||||
content := strings.ReplaceAll(string(indexHTML), "{{.RootPath}}", m.rootPath)
|
||||
|
||||
w.Header().Set("Content-Type", "text/html; charset=utf-8")
|
||||
w.Write([]byte(content))
|
||||
}
|
||||
|
||||
// handleSSE 处理 Server-Sent Events 实时数据推送
|
||||
func (m *Monitor) handleSSE(w http.ResponseWriter, r *http.Request) {
|
||||
// 设置 SSE 响应头
|
||||
w.Header().Set("Content-Type", "text/event-stream")
|
||||
w.Header().Set("Cache-Control", "no-cache")
|
||||
w.Header().Set("Connection", "keep-alive")
|
||||
w.Header().Set("Access-Control-Allow-Origin", "*")
|
||||
|
||||
// 获取 flusher
|
||||
flusher, ok := w.(http.Flusher)
|
||||
if !ok {
|
||||
http.Error(w, "SSE not supported", http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
// 两个定时器：统计数据频率高，队列数据频率低
|
||||
statsTicker := time.NewTicker(2 * time.Second)
|
||||
queuesTicker := time.NewTicker(5 * time.Second)
|
||||
defer statsTicker.Stop()
|
||||
defer queuesTicker.Stop()
|
||||
|
||||
// 监听客户端断开连接
|
||||
ctx := r.Context()
|
||||
|
||||
// 立即发送一次数据
|
||||
m.sendQueuesEvent(w, flusher)
|
||||
m.sendStatsEvent(w, flusher)
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return
|
||||
case <-m.closeCh:
|
||||
return
|
||||
case <-statsTicker.C:
|
||||
m.sendStatsEvent(w, flusher)
|
||||
case <-queuesTicker.C:
|
||||
m.sendQueuesEvent(w, flusher)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// sendStatsEvent 发送统计图表数据
|
||||
func (m *Monitor) sendStatsEvent(w http.ResponseWriter, flusher http.Flusher) {
|
||||
stats, err := m.inspector.QueryStats(inspector.StatsQuery{Limit: 1})
|
||||
if err != nil || len(stats) == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
data, err := json.Marshal(stats[0])
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
fmt.Fprintf(w, "event: stats\ndata: %s\n\n", data)
|
||||
flusher.Flush()
|
||||
}
|
||||
|
||||
// sendQueuesEvent 发送队列表格数据
|
||||
func (m *Monitor) sendQueuesEvent(w http.ResponseWriter, flusher http.Flusher) {
|
||||
var queueInfos []queueInfoJSON
|
||||
for queueName, priority := range m.queues {
|
||||
info, err := m.inspector.GetQueueInfo(queueName)
|
||||
if err != nil {
|
||||
queueInfos = append(queueInfos, queueInfoJSON{
|
||||
Name: queueName,
|
||||
Priority: priority,
|
||||
})
|
||||
} else {
|
||||
queueInfos = append(queueInfos, queueInfoJSON{
|
||||
Name: queueName,
|
||||
Priority: priority,
|
||||
Size: info.Size,
|
||||
Active: info.Active,
|
||||
Pending: info.Pending,
|
||||
Scheduled: info.Scheduled,
|
||||
Retry: info.Retry,
|
||||
Archived: info.Archived,
|
||||
Completed: info.Completed,
|
||||
Processed: info.Processed,
|
||||
Failed: info.Failed,
|
||||
Paused: info.Paused,
|
||||
MemoryUsage: info.MemoryUsage,
|
||||
Latency: info.LatencyMS,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// 按优先级排序
|
||||
sort.Slice(queueInfos, func(i, j int) bool {
|
||||
return queueInfos[i].Priority > queueInfos[j].Priority
|
||||
})
|
||||
|
||||
data, err := json.Marshal(queueInfos)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
fmt.Fprintf(w, "event: queues\ndata: %s\n\n", data)
|
||||
flusher.Flush()
|
||||
}
|
||||
Reference in New Issue
Block a user