Go边缘代理: 单文件可执行+嵌入式MediaMTX+监控+注册

- edge-agent/: Go项目, 支持Windows托盘/Linux无头两种模式
- 使用go:embed将MediaMTX二进制嵌入单一可执行文件
- 首次运行自动释放MediaMTX并生成边缘节点配置
- 自动注册到origin (POST /api/nodes/register)
- 10秒心跳上报CPU/RAM/带宽/连接数 (gopsutil采集)
- Windows: getlantern/systray托盘菜单(状态/CPU/MEM/带宽/退出)
- Linux: headless模式,适合systemd守护
- build.sh/build.ps1: 交叉编译脚本(Linux/Windows)
- 更新start.sh/品牌名StreamCore

edge-agent/agent/agent.go

@@ -0,0 +1,126 @@
+package agent
+
+import (
+	"embed"
+	"fmt"
+	"log"
+	"os"
+	"time"
+)
+
+type Config struct {
+	NodeName  string
+	OriginURL string
+	HlsPort   int
+	ApiPort   int
+	Subnet    string
+	DataDir   string
+	Weight    int
+}
+
+type Agent struct {
+	cfg        Config
+	mediamtxFS embed.FS
+	mtx        *MediaMTXManager
+	hb         *Heartbeat
+	monitor    *Monitor
+	nodeID     string
+	stopCh     chan struct{}
+}
+
+func New(cfg Config, mtxFS embed.FS) (*Agent, error) {
+	return &Agent{
+		cfg:        cfg,
+		mediamtxFS: mtxFS,
+		nodeID:     generateNodeID(cfg),
+		stopCh:     make(chan struct{}),
+	}, nil
+}
+
+func (a *Agent) Start() error {
+	if err := os.MkdirAll(a.cfg.DataDir, 0755); err != nil {
+		return fmt.Errorf("create data dir: %w", err)
+	}
+
+	a.mtx = NewMediaMTXManager(a.cfg, a.mediamtxFS)
+	if err := a.mtx.Extract(); err != nil {
+		return fmt.Errorf("extract mediamtx: %w", err)
+	}
+
+	if err := a.mtx.WriteConfig(); err != nil {
+		return fmt.Errorf("write config: %w", err)
+	}
+
+	if err := a.mtx.Start(); err != nil {
+		return fmt.Errorf("start mediamtx: %w", err)
+	}
+
+	a.monitor = NewMonitor()
+	a.hb = NewHeartbeat(a.cfg, a.nodeID)
+
+	time.Sleep(2 * time.Second)
+
+	if err := a.hb.Register(); err != nil {
+		log.Printf("Warning: registration failed: %v (will retry)", err)
+	}
+
+	go a.heartbeatLoop()
+	go a.monitorLoop()
+
+	return nil
+}
+
+func (a *Agent) Stop() {
+	log.Println("Stopping agent...")
+	close(a.stopCh)
+	if a.mtx != nil {
+		a.mtx.Stop()
+	}
+	log.Println("Agent stopped")
+}
+
+func (a *Agent) heartbeatLoop() {
+	ticker := time.NewTicker(10 * time.Second)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-a.stopCh:
+			return
+		case <-ticker.C:
+			metrics := a.monitor.Snapshot()
+			if err := a.hb.Send(metrics); err != nil {
+				log.Printf("Heartbeat error: %v", err)
+			}
+		}
+	}
+}
+
+func (a *Agent) monitorLoop() {
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-a.stopCh:
+			return
+		case <-ticker.C:
+			a.monitor.Tick()
+		}
+	}
+}
+
+func (a *Agent) NodeID() string  { return a.nodeID }
+func (a *Agent) Config() Config  { return a.cfg }
+func (a *Agent) Metrics() Metrics {
+	if a.monitor != nil {
+		return a.monitor.Snapshot()
+	}
+	return Metrics{}
+}
+
+func generateNodeID(cfg Config) string {
+	host, _ := os.Hostname()
+	if host == "" {
+		host = "unknown"
+	}
+	return fmt.Sprintf("%s-%s", host, cfg.NodeName)
+}