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manager.go
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manager.go
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// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
package agents
import (
"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
"github.com/TeaOSLab/EdgeNode/internal/events"
"github.com/TeaOSLab/EdgeNode/internal/goman"
"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
"github.com/TeaOSLab/EdgeNode/internal/rpc"
"github.com/iwind/TeaGo/Tea"
"sync"
"time"
)
var SharedManager = NewManager()
func init() {
if !teaconst.IsMain {
return
}
events.On(events.EventLoaded, func() {
goman.New(func() {
SharedManager.Start()
})
})
}
// Manager Agent管理器
type Manager struct {
ipMap map[string]string // ip => agentCode
locker sync.RWMutex
db *DB
lastId int64
}
func NewManager() *Manager {
return &Manager{
ipMap: map[string]string{},
}
}
func (this *Manager) SetDB(db *DB) {
this.db = db
}
func (this *Manager) Start() {
remotelogs.Println("AGENT_MANAGER", "starting ...")
err := this.loadDB()
if err != nil {
remotelogs.Error("AGENT_MANAGER", "load database failed: "+err.Error())
return
}
// 从本地数据库中加载
err = this.Load()
if err != nil {
remotelogs.Error("AGENT_MANAGER", "load failed: "+err.Error())
}
// 先从API获取
err = this.LoopAll()
if err != nil {
if rpc.IsConnError(err) {
remotelogs.Debug("AGENT_MANAGER", "retrieve latest agent ip failed: "+err.Error())
} else {
remotelogs.Error("AGENT_MANAGER", "retrieve latest agent ip failed: "+err.Error())
}
}
// 定时获取
var duration = 30 * time.Minute
if Tea.IsTesting() {
duration = 30 * time.Second
}
var ticker = time.NewTicker(duration)
for range ticker.C {
err = this.LoopAll()
if err != nil {
remotelogs.Error("AGENT_MANAGER", "retrieve latest agent ip failed: "+err.Error())
}
}
}
func (this *Manager) Load() error {
var offset int64 = 0
var size int64 = 10000
for {
agentIPs, err := this.db.ListAgentIPs(offset, size)
if err != nil {
return err
}
if len(agentIPs) == 0 {
break
}
for _, agentIP := range agentIPs {
this.locker.Lock()
this.ipMap[agentIP.IP] = agentIP.AgentCode
this.locker.Unlock()
if agentIP.Id > this.lastId {
this.lastId = agentIP.Id
}
}
offset += size
}
return nil
}
func (this *Manager) LoopAll() error {
for {
hasNext, err := this.Loop()
if err != nil {
return err
}
if !hasNext {
break
}
}
return nil
}
// Loop 单次循环获取数据
func (this *Manager) Loop() (hasNext bool, err error) {
rpcClient, err := rpc.SharedRPC()
if err != nil {
return false, err
}
ipsResp, err := rpcClient.ClientAgentIPRPC.ListClientAgentIPsAfterId(rpcClient.Context(), &pb.ListClientAgentIPsAfterIdRequest{
Id: this.lastId,
Size: 10000,
})
if err != nil {
return false, err
}
if len(ipsResp.ClientAgentIPs) == 0 {
return false, nil
}
for _, agentIP := range ipsResp.ClientAgentIPs {
if agentIP.ClientAgent == nil {
// 设置ID
if agentIP.Id > this.lastId {
this.lastId = agentIP.Id
}
continue
}
// 写入到数据库
err = this.db.InsertAgentIP(agentIP.Id, agentIP.Ip, agentIP.ClientAgent.Code)
if err != nil {
return false, err
}
// 写入Map
this.locker.Lock()
this.ipMap[agentIP.Ip] = agentIP.ClientAgent.Code
this.locker.Unlock()
// 设置ID
if agentIP.Id > this.lastId {
this.lastId = agentIP.Id
}
}
return true, nil
}
// AddIP 添加记录
func (this *Manager) AddIP(ip string, agentCode string) {
this.locker.Lock()
this.ipMap[ip] = agentCode
this.locker.Unlock()
}
// LookupIP 查询IP所属Agent
func (this *Manager) LookupIP(ip string) (agentCode string) {
this.locker.RLock()
defer this.locker.RUnlock()
return this.ipMap[ip]
}
// ContainsIP 检查是否有IP相关数据
func (this *Manager) ContainsIP(ip string) bool {
this.locker.RLock()
defer this.locker.RUnlock()
_, ok := this.ipMap[ip]
return ok
}
func (this *Manager) loadDB() error {
var db = NewDB(Tea.Root + "/data/agents.db")
err := db.Init()
if err != nil {
return err
}
this.db = db
return nil
}