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/heartbeat.go

@@ -0,0 +1,84 @@
+package agent
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+)
+
+type Heartbeat struct {
+	cfg    Config
+	nodeID string
+	client *http.Client
+}
+
+type HeartbeatPayload struct {
+	NodeID            string  `json:"node_id"`
+	CPUPct            float64 `json:"cpu_percent"`
+	MemPct            float64 `json:"memory_percent"`
+	BandwidthMbps     float64 `json:"bandwidth_mbps"`
+	ActiveConnections int     `json:"active_connections"`
+	HlsReaders        int     `json:"hls_readers"`
+}
+
+type RegisterPayload struct {
+	NodeID  string `json:"node_id"`
+	Name    string `json:"name"`
+	Host    string `json:"host"`
+	HlsPort int    `json:"hls_port"`
+	ApiPort int    `json:"api_port"`
+	Weight  int    `json:"weight"`
+	Subnet  string `json:"subnet"`
+}
+
+func NewHeartbeat(cfg Config, nodeID string) *Heartbeat {
+	return &Heartbeat{
+		cfg:    cfg,
+		nodeID: nodeID,
+		client: &http.Client{Timeout: 10 * time.Second},
+	}
+}
+
+func (h *Heartbeat) Register() error {
+	payload := RegisterPayload{
+		NodeID:  h.nodeID,
+		Name:    h.cfg.NodeName,
+		Host:    h.cfg.OriginURL,
+		HlsPort: h.cfg.HlsPort,
+		ApiPort: h.cfg.ApiPort,
+		Weight:  h.cfg.Weight,
+		Subnet:  h.cfg.Subnet,
+	}
+	return h.post("/api/nodes/register", payload)
+}
+
+func (h *Heartbeat) Send(m Metrics) error {
+	payload := HeartbeatPayload{
+		NodeID:            h.nodeID,
+		CPUPct:            m.CPU,
+		MemPct:            m.Memory,
+		BandwidthMbps:     m.Bandwidth,
+		ActiveConnections: m.ActiveConns,
+		HlsReaders:        m.HlsReaders,
+	}
+	return h.post("/api/nodes/heartbeat", payload)
+}
+
+func (h *Heartbeat) post(path string, payload interface{}) error {
+	body, err := json.Marshal(payload)
+	if err != nil {
+		return err
+	}
+	url := h.cfg.OriginURL + path
+	resp, err := h.client.Post(url, "application/json", bytes.NewReader(body))
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode >= 400 {
+		return fmt.Errorf("status %d", resp.StatusCode)
+	}
+	return nil
+}