wangjia
78 lines
3.1 KiB
Go
78 lines
3.1 KiB
Go
// Command agent is the Pangolin node agent. It runs on every acceleration node,
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// self-enrolls over mTLS, dials the control plane, applies the streamed command
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// feed by managing the local sing-box user table, and reports heartbeat/usage.
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//
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// Configuration comes from flags or PANGOLIN_AGENT_* environment variables
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// (cloud-init injects the latter). The node holds zero user identities on disk.
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package main
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import (
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"context"
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"flag"
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"log"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/wangjia/pangolin/server/internal/agentd"
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)
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func main() {
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cfg := agentd.Config{}
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var singboxUnit string
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flag.StringVar(&cfg.ControlPlaneAddr, "control-plane", env("PANGOLIN_AGENT_CONTROL_PLANE", ""), "control plane gRPC address host:port")
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flag.StringVar(&cfg.ServerName, "server-name", env("PANGOLIN_AGENT_SERVER_NAME", ""), "TLS SNI to validate (defaults to control-plane host)")
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flag.StringVar(&cfg.BootstrapToken, "bootstrap-token", env("PANGOLIN_AGENT_BOOTSTRAP_TOKEN", ""), "one-time enrollment token")
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flag.StringVar(&cfg.StateDir, "state-dir", env("PANGOLIN_AGENT_STATE_DIR", agentd.DefaultStateDir), "directory for node key/cert/ca/state")
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flag.StringVar(&cfg.SingboxConfigPath, "singbox-config", env("PANGOLIN_AGENT_SINGBOX_CONFIG", agentd.DefaultSingboxCfg), "path to rendered sing-box config")
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flag.StringVar(&cfg.DeriveKey, "derive-key", env("PANGOLIN_AGENT_DERIVE_KEY", ""), "Hy2 password derivation key")
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flag.StringVar(&cfg.AgentVersion, "agent-version", env("PANGOLIN_AGENT_VERSION", "dev"), "reported agent version")
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flag.StringVar(&singboxUnit, "singbox-unit", env("PANGOLIN_AGENT_SINGBOX_UNIT", "sing-box"), "systemd unit to restart on config change")
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flag.BoolVar(&cfg.Insecure, "insecure", env("PANGOLIN_AGENT_INSECURE", "") == "1", "dial without mTLS (dev only)")
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flag.Parse()
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if cfg.ControlPlaneAddr == "" {
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log.Fatal("agent: --control-plane (or PANGOLIN_AGENT_CONTROL_PLANE) is required")
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}
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agent := agentd.New(cfg, agentd.WithRestarter(agentd.SystemdRestarter{Unit: singboxUnit}))
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// 真实流量采集:读本地 v2ray_api StatsService 的 per-user 计数器,按 dp_uuid 精确上报。
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agent.UseV2RayUsage()
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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// SIGHUP 重读节点本地配置(acl.json / warp.json)并重渲染。走 sing-box 的 SIGHUP
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// 热重载路径,在线用户不掉线;重启 agent 则会冷启 sing-box,把所有人踢下线。
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hup := make(chan os.Signal, 1)
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signal.Notify(hup, syscall.SIGHUP)
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defer signal.Stop(hup)
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go func() {
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for {
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select {
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case <-ctx.Done():
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return
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case <-hup:
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log.Printf("[pangolin-agent] SIGHUP: re-reading node-local config (acl.json/warp.json)")
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agent.SingBox().Refresh()
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}
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}
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}()
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log.Printf("[pangolin-agent] starting (control-plane=%s, version=%s)", cfg.ControlPlaneAddr, cfg.AgentVersion)
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start := time.Now()
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if err := agent.Run(ctx); err != nil {
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log.Fatalf("[pangolin-agent] exited after %s: %v", time.Since(start), err)
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}
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log.Printf("[pangolin-agent] shut down cleanly after %s", time.Since(start))
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}
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func env(key, def string) string {
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if v, ok := os.LookupEnv(key); ok {
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return v
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}
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return def
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}
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