f03d2dc8a6
与控制面同仓同 go.mod,新增节点 agent 实现:
- proto/agent/v1/agent.proto + internal/pb/agentv1:冻结的控制面↔agent gRPC 契约
(Enroll/Register/Heartbeat/Subscribe/Ack/ReportUsage)。仓库尚无 protoc 流水线,
暂以手写 Go 类型 + JSON gRPC codec 实现,与 proto 1:1 对应,待 protoc 接入即可替换。
- internal/agentd:
- enroll.go:首启生成 EC 密钥+CSR,持 bootstrap token 调 Enroll 换 90d 节点证书
(CN=node_uuid),落 /etc/pangolin-agent/,此后 mTLS。
- conn.go(agent.go)+creds.go:mTLS 主动拨号 + 指数退避重连;重连携带 last_command_id;
Register 取 ConfigSnapshot 全量配置覆盖本地。
- heartbeat.go:30s 上报 peer/带宽/CPU + config_version;need_full_resync→全量同步。
- command.go:消费 Subscribe,Upsert/Revoke/Rotate/ApplyConfig/Lifecycle 幂等处理后
Ack(at-least-once,按 command_id 去重)。
- singbox.go+render.go:内存用户表 + 落盘 state.json(仅 dp_uuid+expires_at);任何变更
渲染完整 sing-box 配置(REALITY users[uuid,flow] + Hy2 users[派生口令])→ 500ms 去抖
合并 → systemd 重启。
- ttl.go:凭证 TTL 定时移除并上报。
- usage.go:按 dp_uuid 聚合上报,绝无 user_id/email/目的地址。
- derive.go:Hy2 口令 = HMAC-SHA256(key, dp_uuid),与控制面同源派生。
- cmd/agent:入口(flag/env 配置)。
- infra/cloud-init/{node.yaml.tmpl,install-node.sh,README.md}:一段式安装,下载锁定版本
二进制并校验 SHA-256,systemd 拉管,首启即 Enroll/Register。shellcheck -S warning 通过。
测试(bufconn mock 控制面,无需 docker):Enroll→Register→Heartbeat 全流转;Upsert/Revoke
渲染正确;Rotate 宽限期新旧并存到点移除;TTL 自动移除并上报;断流重连 last_command_id
续发不丢不重;need_full_resync 触发重注册;state.json 恢复;去抖合并;扫描确认无身份字段。
go test -race ./internal/agentd/... ./internal/pb/... 通过;go vet ./... 通过。
落实 doc/04 §2 节点无状态化与 doc/06 §3 数据面红线(节点仅见 dp_uuid)。
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
package agentd
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
)
|
|
|
|
// logf is the agent's structured-ish logger. It deliberately never logs
|
|
// dp_uuids, peers' addresses or any payload — only operational events — to honour
|
|
// the no-log policy.
|
|
func logf(format string, args ...any) {
|
|
log.Printf("[pangolin-agent] "+format, args...)
|
|
}
|
|
|
|
// atomicWrite writes data to a temp file in the same directory and renames it into
|
|
// place, so a crash mid-write never leaves a truncated config/state file.
|
|
func atomicWrite(path string, data []byte, perm os.FileMode) error {
|
|
dir := filepath.Dir(path)
|
|
tmp, err := os.CreateTemp(dir, ".tmp-*")
|
|
if err != nil {
|
|
return fmt.Errorf("agentd: temp file: %w", err)
|
|
}
|
|
tmpName := tmp.Name()
|
|
defer os.Remove(tmpName) // no-op if the rename succeeded
|
|
if _, err := tmp.Write(data); err != nil {
|
|
tmp.Close()
|
|
return fmt.Errorf("agentd: write temp: %w", err)
|
|
}
|
|
if err := tmp.Chmod(perm); err != nil {
|
|
tmp.Close()
|
|
return fmt.Errorf("agentd: chmod temp: %w", err)
|
|
}
|
|
if err := tmp.Close(); err != nil {
|
|
return fmt.Errorf("agentd: close temp: %w", err)
|
|
}
|
|
if err := os.Rename(tmpName, path); err != nil {
|
|
return fmt.Errorf("agentd: rename temp: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// SystemdRestarter restarts the sing-box unit via `systemctl restart`.
|
|
type SystemdRestarter struct {
|
|
Unit string // e.g. "sing-box"
|
|
}
|
|
|
|
// Restart runs `systemctl restart <unit>`.
|
|
func (r SystemdRestarter) Restart(ctx context.Context) error {
|
|
unit := r.Unit
|
|
if unit == "" {
|
|
unit = "sing-box"
|
|
}
|
|
cmd := exec.CommandContext(ctx, "systemctl", "restart", unit)
|
|
if out, err := cmd.CombinedOutput(); err != nil {
|
|
return fmt.Errorf("agentd: restart %s: %w: %s", unit, err, out)
|
|
}
|
|
return nil
|
|
}
|