feat: add agent exec
This commit is contained in:
engigu
@@ -0,0 +1,11 @@
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[agent]
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# 主服务器地址
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server_url = http://192.168.1.100:8052
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# Agent 名称（留空则使用主机名）
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name = agent-01
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# Token（由服务器下发，首次运行留空）
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token =
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# 心跳间隔（秒）
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interval = 30
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# 自动更新（true/false）
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auto_update = true
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@@ -0,0 +1,12 @@
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module baihu-agent
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go 1.24
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require (
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github.com/robfig/cron/v3 v3.0.1
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github.com/sirupsen/logrus v1.9.3
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gopkg.in/ini.v1 v1.67.0
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gopkg.in/natefinch/lumberjack.v2 v2.2.1
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)
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require golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
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@@ -0,0 +1,21 @@
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
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github.com/robfig/cron/v3 v3.0.1/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
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github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
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github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
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github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
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gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
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gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
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gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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+976
@@ -0,0 +1,976 @@
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package main
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"os"
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"os/exec"
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"os/signal"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"syscall"
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"time"
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"github.com/robfig/cron/v3"
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"github.com/sirupsen/logrus"
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"gopkg.in/ini.v1"
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"gopkg.in/natefinch/lumberjack.v2"
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)
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const ServiceName = "baihu-agent"
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const ServiceDesc = "Baihu Agent Service"
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// 版本信息（通过 ldflags 注入）
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var (
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Version = "dev"
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BuildTime = ""
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)
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// 东八区时区
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var cstZone = time.FixedZone("CST", 8*3600)
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// 日志实例
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var log = logrus.New()
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// 全局配置
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var (
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configFile = "config.ini"
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logFile = "logs/agent.log"
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)
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func main() {
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// 获取程序所在目录
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exePath, _ := os.Executable()
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exeDir := filepath.Dir(exePath)
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os.Chdir(exeDir)
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if len(os.Args) < 2 {
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printUsage()
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os.Exit(1)
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}
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cmd := os.Args[1]
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// 解析额外参数
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for i := 2; i < len(os.Args); i++ {
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switch os.Args[i] {
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case "-c", "--config":
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if i+1 < len(os.Args) {
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configFile = os.Args[i+1]
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i++
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}
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case "-l", "--log":
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if i+1 < len(os.Args) {
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logFile = os.Args[i+1]
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i++
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}
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}
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}
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switch cmd {
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case "start":
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cmdStart()
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case "stop":
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cmdStop()
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case "status":
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cmdStatus()
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case "install":
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cmdInstall()
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case "uninstall":
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cmdUninstall()
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case "version", "-v", "--version":
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fmt.Printf("Baihu Agent v%s\n", Version)
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if BuildTime != "" {
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fmt.Printf("Build Time: %s\n", BuildTime)
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}
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case "help", "-h", "--help":
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printUsage()
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default:
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fmt.Printf("未知命令: %s\n", cmd)
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printUsage()
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os.Exit(1)
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}
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}
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func printUsage() {
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fmt.Printf(`Baihu Agent v%s
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用法: baihu-agent <命令> [选项]
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命令:
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start 启动 Agent
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stop 停止 Agent
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status 查看运行状态
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install 安装为系统服务（开机自启）
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uninstall 卸载系统服务
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version 显示版本信息
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help 显示帮助信息
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选项:
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-c, --config <file> 配置文件路径 (默认: config.ini)
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-l, --log <file> 日志文件路径 (默认: logs/agent.log)
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示例:
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baihu-agent start
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baihu-agent start -c /etc/baihu/config.ini
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baihu-agent install
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baihu-agent status
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`, Version)
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}
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// ========== 命令实现 ==========
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func cmdStart() {
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// 初始化日志
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initLogger(logFile)
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// 加载配置
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config := &Config{Interval: 30}
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if err := loadConfigFile(configFile, config); err != nil {
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if !os.IsNotExist(err) {
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log.Warnf("加载配置文件失败: %v", err)
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}
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}
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// 从环境变量加载
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if v := os.Getenv("AGENT_SERVER"); v != "" {
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config.ServerURL = v
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}
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if v := os.Getenv("AGENT_NAME"); v != "" {
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config.Name = v
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}
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// 验证配置
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if config.ServerURL == "" {
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log.Fatal("请在配置文件中设置 server_url")
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}
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if config.Name == "" {
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hostname, _ := os.Hostname()
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config.Name = hostname
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}
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log.Infof("Baihu Agent v%s", Version)
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if BuildTime != "" {
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log.Infof("构建时间: %s", BuildTime)
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}
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log.Infof("服务器: %s", config.ServerURL)
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log.Infof("名称: %s", config.Name)
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// 写入 PID 文件
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writePidFile()
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// 创建并启动 Agent
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agent := NewAgent(config, configFile)
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if err := agent.Start(); err != nil {
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log.Fatalf("启动失败: %v", err)
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}
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// 等待退出信号
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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log.Info("正在停止...")
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agent.Stop()
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removePidFile()
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}
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func cmdStop() {
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pid := readPidFile()
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if pid == 0 {
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fmt.Println("Agent 未运行")
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return
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}
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process, err := os.FindProcess(pid)
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if err != nil {
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fmt.Printf("找不到进程 %d\n", pid)
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removePidFile()
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return
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}
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if runtime.GOOS == "windows" {
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err = process.Kill()
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} else {
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err = process.Signal(syscall.SIGTERM)
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}
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if err != nil {
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fmt.Printf("停止失败: %v\n", err)
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return
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}
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fmt.Println("Agent 已停止")
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removePidFile()
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}
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func cmdStatus() {
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pid := readPidFile()
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if pid == 0 {
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fmt.Println("状态: 未运行")
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return
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}
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// 检查进程是否存在
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process, err := os.FindProcess(pid)
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if err != nil {
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fmt.Println("状态: 未运行")
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removePidFile()
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return
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}
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// Unix 系统发送信号 0 检查进程
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if runtime.GOOS != "windows" {
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err = process.Signal(syscall.Signal(0))
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if err != nil {
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fmt.Println("状态: 未运行")
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removePidFile()
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return
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}
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}
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fmt.Printf("状态: 运行中 (PID: %d)\n", pid)
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}
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func cmdInstall() {
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exePath, _ := os.Executable()
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exeDir := filepath.Dir(exePath)
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if runtime.GOOS == "windows" {
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installWindows(exePath, exeDir)
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} else {
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installLinux(exePath, exeDir)
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}
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}
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func cmdUninstall() {
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if runtime.GOOS == "windows" {
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uninstallWindows()
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} else {
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uninstallLinux()
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}
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}
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// ========== Linux systemd ==========
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func installLinux(exePath, exeDir string) {
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serviceContent := fmt.Sprintf(`[Unit]
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Description=%s
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After=network.target
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[Service]
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Type=simple
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WorkingDirectory=%s
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ExecStart=%s start
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Restart=always
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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`, ServiceDesc, exeDir, exePath)
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servicePath := fmt.Sprintf("/etc/systemd/system/%s.service", ServiceName)
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if err := os.WriteFile(servicePath, []byte(serviceContent), 0644); err != nil {
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fmt.Printf("创建服务文件失败: %v\n", err)
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fmt.Println("请使用 sudo 运行")
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return
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}
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// 重载 systemd
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exec.Command("systemctl", "daemon-reload").Run()
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exec.Command("systemctl", "enable", ServiceName).Run()
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fmt.Printf("服务已安装: %s\n", servicePath)
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fmt.Println("使用以下命令管理服务:")
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fmt.Printf(" 启动: sudo systemctl start %s\n", ServiceName)
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fmt.Printf(" 停止: sudo systemctl stop %s\n", ServiceName)
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fmt.Printf(" 状态: sudo systemctl status %s\n", ServiceName)
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}
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func uninstallLinux() {
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// 停止服务
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exec.Command("systemctl", "stop", ServiceName).Run()
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exec.Command("systemctl", "disable", ServiceName).Run()
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servicePath := fmt.Sprintf("/etc/systemd/system/%s.service", ServiceName)
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if err := os.Remove(servicePath); err != nil {
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fmt.Printf("删除服务文件失败: %v\n", err)
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fmt.Println("请使用 sudo 运行")
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return
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}
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exec.Command("systemctl", "daemon-reload").Run()
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fmt.Println("服务已卸载")
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}
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// ========== Windows 服务 ==========
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func installWindows(exePath, exeDir string) {
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// 使用 sc.exe 创建服务
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cmd := exec.Command("sc", "create", ServiceName,
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"binPath=", fmt.Sprintf(`"%s" start`, exePath),
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"start=", "auto",
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"DisplayName=", ServiceDesc)
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if err := cmd.Run(); err != nil {
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fmt.Printf("创建服务失败: %v\n", err)
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fmt.Println("请以管理员身份运行")
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return
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}
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// 设置服务描述
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exec.Command("sc", "description", ServiceName, ServiceDesc).Run()
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fmt.Println("服务已安装")
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fmt.Println("使用以下命令管理服务:")
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fmt.Printf(" 启动: sc start %s\n", ServiceName)
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fmt.Printf(" 停止: sc stop %s\n", ServiceName)
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fmt.Printf(" 状态: sc query %s\n", ServiceName)
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}
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func uninstallWindows() {
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// 停止服务
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exec.Command("sc", "stop", ServiceName).Run()
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// 删除服务
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cmd := exec.Command("sc", "delete", ServiceName)
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if err := cmd.Run(); err != nil {
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fmt.Printf("删除服务失败: %v\n", err)
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fmt.Println("请以管理员身份运行")
|
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return
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}
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fmt.Println("服务已卸载")
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}
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// ========== PID 文件管理 ==========
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func getPidFile() string {
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return filepath.Join(filepath.Dir(configFile), "agent.pid")
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}
|
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|
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func writePidFile() {
|
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pidFile := getPidFile()
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os.WriteFile(pidFile, []byte(strconv.Itoa(os.Getpid())), 0644)
|
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}
|
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|
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func readPidFile() int {
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pidFile := getPidFile()
|
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data, err := os.ReadFile(pidFile)
|
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if err != nil {
|
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return 0
|
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}
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pid, _ := strconv.Atoi(string(data))
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return pid
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}
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|
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func removePidFile() {
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os.Remove(getPidFile())
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}
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|
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// ========== 日志初始化 ==========
|
||||
|
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// CustomFormatter 自定义日志格式
|
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type CustomFormatter struct{}
|
||||
|
||||
// ANSI 颜色代码
|
||||
const (
|
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colorReset = "\033[0m"
|
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colorRed = "\033[31m"
|
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colorYellow = "\033[33m"
|
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colorBlue = "\033[36m"
|
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colorGray = "\033[37m"
|
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)
|
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|
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func (f *CustomFormatter) Format(entry *logrus.Entry) ([]byte, error) {
|
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timestamp := entry.Time.Format("2006-01-02 15:04:05")
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||||
level := strings.ToUpper(entry.Level.String())
|
||||
|
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var levelColor string
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switch entry.Level {
|
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case logrus.DebugLevel, logrus.TraceLevel:
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levelColor = colorGray
|
||||
case logrus.InfoLevel:
|
||||
levelColor = colorBlue
|
||||
case logrus.WarnLevel:
|
||||
levelColor = colorYellow
|
||||
case logrus.ErrorLevel, logrus.FatalLevel, logrus.PanicLevel:
|
||||
levelColor = colorRed
|
||||
default:
|
||||
levelColor = colorBlue
|
||||
}
|
||||
|
||||
msg := fmt.Sprintf("[%s]%s[%s]%s %s\n", timestamp, levelColor, level, colorReset, entry.Message)
|
||||
return []byte(msg), nil
|
||||
}
|
||||
|
||||
func initLogger(logFile string) {
|
||||
logDir := filepath.Dir(logFile)
|
||||
if logDir != "" && logDir != "." {
|
||||
os.MkdirAll(logDir, 0755)
|
||||
}
|
||||
|
||||
log.SetFormatter(&CustomFormatter{})
|
||||
log.SetLevel(logrus.InfoLevel)
|
||||
|
||||
lumberjackLogger := &lumberjack.Logger{
|
||||
Filename: logFile,
|
||||
MaxSize: 5,
|
||||
MaxBackups: 3,
|
||||
MaxAge: 0,
|
||||
Compress: false,
|
||||
}
|
||||
|
||||
log.SetOutput(io.MultiWriter(os.Stdout, lumberjackLogger))
|
||||
}
|
||||
|
||||
|
||||
// ========== 配置相关 ==========
|
||||
|
||||
type Config struct {
|
||||
ServerURL string
|
||||
Name string
|
||||
Token string
|
||||
Interval int
|
||||
AutoUpdate bool
|
||||
}
|
||||
|
||||
func loadConfigFile(path string, config *Config) error {
|
||||
cfg, err := ini.Load(path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
section := cfg.Section("agent")
|
||||
if v := section.Key("server_url").String(); v != "" {
|
||||
config.ServerURL = v
|
||||
}
|
||||
if v := section.Key("name").String(); v != "" {
|
||||
config.Name = v
|
||||
}
|
||||
if v := section.Key("token").String(); v != "" {
|
||||
config.Token = v
|
||||
}
|
||||
if v := section.Key("interval").String(); v != "" {
|
||||
if i, err := strconv.Atoi(v); err == nil && i > 0 {
|
||||
config.Interval = i
|
||||
}
|
||||
}
|
||||
if v := section.Key("auto_update").String(); v != "" {
|
||||
config.AutoUpdate = v == "true" || v == "1"
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func saveConfigFile(path string, config *Config) error {
|
||||
dir := filepath.Dir(path)
|
||||
if dir != "" && dir != "." {
|
||||
os.MkdirAll(dir, 0755)
|
||||
}
|
||||
|
||||
cfg := ini.Empty()
|
||||
section := cfg.Section("agent")
|
||||
section.Key("server_url").SetValue(config.ServerURL)
|
||||
section.Key("name").SetValue(config.Name)
|
||||
section.Key("token").SetValue(config.Token)
|
||||
section.Key("interval").SetValue(strconv.Itoa(config.Interval))
|
||||
if config.AutoUpdate {
|
||||
section.Key("auto_update").SetValue("true")
|
||||
} else {
|
||||
section.Key("auto_update").SetValue("false")
|
||||
}
|
||||
|
||||
return cfg.SaveTo(path)
|
||||
}
|
||||
|
||||
// ========== Agent 结构 ==========
|
||||
|
||||
type AgentTask struct {
|
||||
ID uint `json:"id"`
|
||||
Name string `json:"name"`
|
||||
Command string `json:"command"`
|
||||
Schedule string `json:"schedule"`
|
||||
Timeout int `json:"timeout"`
|
||||
WorkDir string `json:"work_dir"`
|
||||
Envs string `json:"envs"`
|
||||
Enabled bool `json:"enabled"`
|
||||
}
|
||||
|
||||
type TaskResult struct {
|
||||
TaskID uint `json:"task_id"`
|
||||
Command string `json:"command"`
|
||||
Output string `json:"output"`
|
||||
Status string `json:"status"`
|
||||
Duration int64 `json:"duration"`
|
||||
ExitCode int `json:"exit_code"`
|
||||
StartTime int64 `json:"start_time"`
|
||||
EndTime int64 `json:"end_time"`
|
||||
}
|
||||
|
||||
type Agent struct {
|
||||
config *Config
|
||||
configFile string
|
||||
cron *cron.Cron
|
||||
tasks map[uint]*AgentTask
|
||||
entryMap map[uint]cron.EntryID
|
||||
mu sync.RWMutex
|
||||
client *http.Client
|
||||
}
|
||||
|
||||
func NewAgent(config *Config, configFile string) *Agent {
|
||||
return &Agent{
|
||||
config: config,
|
||||
configFile: configFile,
|
||||
cron: cron.New(cron.WithSeconds(), cron.WithLocation(cstZone)),
|
||||
tasks: make(map[uint]*AgentTask),
|
||||
entryMap: make(map[uint]cron.EntryID),
|
||||
client: &http.Client{Timeout: 30 * time.Second},
|
||||
}
|
||||
}
|
||||
|
||||
func (a *Agent) Start() error {
|
||||
if a.config.Token == "" {
|
||||
log.Info("未找到 Token，开始注册流程...")
|
||||
if err := a.registerAndWait(); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
if err := a.heartbeat(); err != nil {
|
||||
log.Warnf("首次心跳失败: %v（将继续重试）", err)
|
||||
}
|
||||
|
||||
if err := a.syncTasks(); err != nil {
|
||||
log.Warnf("同步任务失败: %v（将继续重试）", err)
|
||||
}
|
||||
|
||||
a.cron.Start()
|
||||
go a.heartbeatLoop()
|
||||
go a.syncTasksLoop()
|
||||
|
||||
log.Info("Agent 已启动 (时区: Asia/Shanghai)")
|
||||
return nil
|
||||
}
|
||||
|
||||
func (a *Agent) Stop() {
|
||||
ctx := a.cron.Stop()
|
||||
<-ctx.Done()
|
||||
log.Info("Agent 已停止")
|
||||
}
|
||||
|
||||
func (a *Agent) registerAndWait() error {
|
||||
hostname, _ := os.Hostname()
|
||||
|
||||
body := map[string]string{
|
||||
"name": a.config.Name,
|
||||
"hostname": hostname,
|
||||
"version": Version,
|
||||
}
|
||||
|
||||
resp, err := a.doRequestNoAuth("POST", "/api/agent/register", body)
|
||||
if err != nil {
|
||||
return fmt.Errorf("注册失败: %v", err)
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
data, _ := io.ReadAll(resp.Body)
|
||||
return fmt.Errorf("注册失败: %s", string(data))
|
||||
}
|
||||
|
||||
var result struct {
|
||||
Code int `json:"code"`
|
||||
Data struct {
|
||||
AgentID uint `json:"agent_id"`
|
||||
Status string `json:"status"`
|
||||
Message string `json:"message"`
|
||||
} `json:"data"`
|
||||
}
|
||||
json.NewDecoder(resp.Body).Decode(&result)
|
||||
|
||||
log.Infof("注册成功 (ID: %d)，等待管理员审核...", result.Data.AgentID)
|
||||
|
||||
ticker := time.NewTicker(5 * time.Second)
|
||||
defer ticker.Stop()
|
||||
|
||||
for {
|
||||
<-ticker.C
|
||||
|
||||
statusResp, err := a.doRequestNoAuth("POST", "/api/agent/status", map[string]string{
|
||||
"name": a.config.Name,
|
||||
})
|
||||
if err != nil {
|
||||
log.Warnf("检查状态失败: %v", err)
|
||||
continue
|
||||
}
|
||||
|
||||
if statusResp.StatusCode != http.StatusOK {
|
||||
statusResp.Body.Close()
|
||||
continue
|
||||
}
|
||||
|
||||
var statusResult struct {
|
||||
Code int `json:"code"`
|
||||
Data struct {
|
||||
AgentID uint `json:"agent_id"`
|
||||
Status string `json:"status"`
|
||||
Token string `json:"token"`
|
||||
} `json:"data"`
|
||||
}
|
||||
json.NewDecoder(statusResp.Body).Decode(&statusResult)
|
||||
statusResp.Body.Close()
|
||||
|
||||
if statusResult.Data.Status != "pending" && statusResult.Data.Token != "" {
|
||||
a.config.Token = statusResult.Data.Token
|
||||
if err := saveConfigFile(a.configFile, a.config); err != nil {
|
||||
log.Warnf("保存配置文件失败: %v", err)
|
||||
} else {
|
||||
log.Infof("Token 已保存到 %s", a.configFile)
|
||||
}
|
||||
log.Info("审核通过，开始工作...")
|
||||
return nil
|
||||
}
|
||||
|
||||
log.Debug("等待审核中...")
|
||||
}
|
||||
}
|
||||
|
||||
func (a *Agent) heartbeatLoop() {
|
||||
ticker := time.NewTicker(time.Duration(a.config.Interval) * time.Second)
|
||||
defer ticker.Stop()
|
||||
|
||||
for range ticker.C {
|
||||
if err := a.heartbeat(); err != nil {
|
||||
log.Warnf("心跳失败: %v", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (a *Agent) heartbeat() error {
|
||||
hostname, _ := os.Hostname()
|
||||
body := map[string]interface{}{
|
||||
"version": Version,
|
||||
"build_time": BuildTime,
|
||||
"hostname": hostname,
|
||||
"os": runtime.GOOS,
|
||||
"arch": runtime.GOARCH,
|
||||
"auto_update": a.config.AutoUpdate,
|
||||
}
|
||||
|
||||
resp, err := a.doRequest("POST", "/api/agent/heartbeat", body)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
data, _ := io.ReadAll(resp.Body)
|
||||
return fmt.Errorf("心跳失败: %s", string(data))
|
||||
}
|
||||
|
||||
var result struct {
|
||||
Code int `json:"code"`
|
||||
Data struct {
|
||||
AgentID uint `json:"agent_id"`
|
||||
Name string `json:"name"`
|
||||
NeedUpdate bool `json:"need_update"`
|
||||
ForceUpdate bool `json:"force_update"`
|
||||
LatestVersion string `json:"latest_version"`
|
||||
} `json:"data"`
|
||||
}
|
||||
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
|
||||
return nil // 忽略解析错误
|
||||
}
|
||||
|
||||
// 检查是否需要更新
|
||||
if result.Data.NeedUpdate && (a.config.AutoUpdate || result.Data.ForceUpdate) {
|
||||
log.Infof("发现新版本 %s，开始更新...", result.Data.LatestVersion)
|
||||
go a.selfUpdate()
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (a *Agent) syncTasksLoop() {
|
||||
ticker := time.NewTicker(time.Duration(a.config.Interval) * time.Second)
|
||||
defer ticker.Stop()
|
||||
|
||||
for range ticker.C {
|
||||
if err := a.syncTasks(); err != nil {
|
||||
log.Warnf("同步任务失败: %v", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (a *Agent) syncTasks() error {
|
||||
resp, err := a.doRequest("GET", "/api/agent/tasks", nil)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
data, _ := io.ReadAll(resp.Body)
|
||||
return fmt.Errorf("获取任务失败: %s", string(data))
|
||||
}
|
||||
|
||||
var result struct {
|
||||
Code int `json:"code"`
|
||||
Data struct {
|
||||
AgentID uint `json:"agent_id"`
|
||||
Tasks []AgentTask `json:"tasks"`
|
||||
} `json:"data"`
|
||||
}
|
||||
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
a.updateTasks(result.Data.Tasks)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (a *Agent) updateTasks(tasks []AgentTask) {
|
||||
a.mu.Lock()
|
||||
defer a.mu.Unlock()
|
||||
|
||||
newTasks := make(map[uint]*AgentTask)
|
||||
for i := range tasks {
|
||||
newTasks[tasks[i].ID] = &tasks[i]
|
||||
}
|
||||
|
||||
for id, entryID := range a.entryMap {
|
||||
if _, exists := newTasks[id]; !exists {
|
||||
a.cron.Remove(entryID)
|
||||
delete(a.entryMap, id)
|
||||
delete(a.tasks, id)
|
||||
log.Infof("移除任务 #%d", id)
|
||||
}
|
||||
}
|
||||
|
||||
for id, task := range newTasks {
|
||||
oldTask, exists := a.tasks[id]
|
||||
if !exists || oldTask.Schedule != task.Schedule || oldTask.Command != task.Command {
|
||||
if entryID, ok := a.entryMap[id]; ok {
|
||||
a.cron.Remove(entryID)
|
||||
}
|
||||
|
||||
taskCopy := *task
|
||||
entryID, err := a.cron.AddFunc(task.Schedule, func() {
|
||||
a.executeTask(&taskCopy)
|
||||
})
|
||||
if err != nil {
|
||||
log.Errorf("添加任务 #%d 失败: %v", id, err)
|
||||
continue
|
||||
}
|
||||
|
||||
a.entryMap[id] = entryID
|
||||
a.tasks[id] = task
|
||||
log.Infof("调度任务 #%d %s (%s)", id, task.Name, task.Schedule)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (a *Agent) executeTask(task *AgentTask) {
|
||||
log.Infof("执行任务 #%d %s", task.ID, task.Name)
|
||||
|
||||
start := time.Now()
|
||||
result := &TaskResult{
|
||||
TaskID: task.ID,
|
||||
Command: task.Command,
|
||||
StartTime: start.Unix(),
|
||||
}
|
||||
|
||||
timeout := task.Timeout
|
||||
if timeout <= 0 {
|
||||
timeout = 30
|
||||
}
|
||||
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeout)*time.Minute)
|
||||
defer cancel()
|
||||
|
||||
var cmd *exec.Cmd
|
||||
if runtime.GOOS == "windows" {
|
||||
cmd = exec.CommandContext(ctx, "cmd", "/c", task.Command)
|
||||
} else {
|
||||
cmd = exec.CommandContext(ctx, "sh", "-c", task.Command)
|
||||
}
|
||||
|
||||
if task.WorkDir != "" {
|
||||
cmd.Dir = task.WorkDir
|
||||
}
|
||||
|
||||
var stdout, stderr bytes.Buffer
|
||||
cmd.Stdout = &stdout
|
||||
cmd.Stderr = &stderr
|
||||
|
||||
err := cmd.Run()
|
||||
end := time.Now()
|
||||
|
||||
result.EndTime = end.Unix()
|
||||
result.Duration = end.Sub(start).Milliseconds()
|
||||
result.Output = stdout.String()
|
||||
|
||||
if err != nil {
|
||||
result.Status = "failed"
|
||||
result.Output += "\n[ERROR]\n" + stderr.String() + "\n" + err.Error()
|
||||
if exitErr, ok := err.(*exec.ExitError); ok {
|
||||
result.ExitCode = exitErr.ExitCode()
|
||||
} else {
|
||||
result.ExitCode = 1
|
||||
}
|
||||
} else {
|
||||
result.Status = "success"
|
||||
result.ExitCode = 0
|
||||
}
|
||||
|
||||
if err := a.reportResult(result); err != nil {
|
||||
log.Errorf("上报结果失败: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func (a *Agent) reportResult(result *TaskResult) error {
|
||||
resp, err := a.doRequest("POST", "/api/agent/report", result)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
data, _ := io.ReadAll(resp.Body)
|
||||
return fmt.Errorf("上报失败: %s", string(data))
|
||||
}
|
||||
|
||||
log.Infof("任务 #%d 执行完成 (%s)", result.TaskID, result.Status)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (a *Agent) doRequest(method, path string, body interface{}) (*http.Response, error) {
|
||||
var bodyReader io.Reader
|
||||
if body != nil {
|
||||
data, err := json.Marshal(body)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
bodyReader = bytes.NewReader(data)
|
||||
}
|
||||
|
||||
req, err := http.NewRequest(method, a.config.ServerURL+path, bodyReader)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
req.Header.Set("Authorization", "Bearer "+a.config.Token)
|
||||
req.Header.Set("Content-Type", "application/json")
|
||||
|
||||
return a.client.Do(req)
|
||||
}
|
||||
|
||||
func (a *Agent) doRequestNoAuth(method, path string, body interface{}) (*http.Response, error) {
|
||||
var bodyReader io.Reader
|
||||
if body != nil {
|
||||
data, err := json.Marshal(body)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
bodyReader = bytes.NewReader(data)
|
||||
}
|
||||
|
||||
req, err := http.NewRequest(method, a.config.ServerURL+path, bodyReader)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
req.Header.Set("Content-Type", "application/json")
|
||||
|
||||
return a.client.Do(req)
|
||||
}
|
||||
|
||||
// selfUpdate 自动更新
|
||||
func (a *Agent) selfUpdate() {
|
||||
// 获取当前可执行文件路径
|
||||
exePath, err := os.Executable()
|
||||
if err != nil {
|
||||
log.Errorf("获取可执行文件路径失败: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
// 下载新版本
|
||||
downloadURL := fmt.Sprintf("%s/api/agent/download?os=%s&arch=%s", a.config.ServerURL, runtime.GOOS, runtime.GOARCH)
|
||||
req, err := http.NewRequest("GET", downloadURL, nil)
|
||||
if err != nil {
|
||||
log.Errorf("创建下载请求失败: %v", err)
|
||||
return
|
||||
}
|
||||
req.Header.Set("Authorization", "Bearer "+a.config.Token)
|
||||
|
||||
client := &http.Client{Timeout: 5 * time.Minute}
|
||||
resp, err := client.Do(req)
|
||||
if err != nil {
|
||||
log.Errorf("下载新版本失败: %v", err)
|
||||
return
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != http.StatusOK {
|
||||
log.Errorf("下载新版本失败: HTTP %d", resp.StatusCode)
|
||||
return
|
||||
}
|
||||
|
||||
// 保存到临时文件
|
||||
tmpFile := exePath + ".new"
|
||||
f, err := os.OpenFile(tmpFile, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0755)
|
||||
if err != nil {
|
||||
log.Errorf("创建临时文件失败: %v", err)
|
||||
return
|
||||
}
|
||||
|
||||
_, err = io.Copy(f, resp.Body)
|
||||
f.Close()
|
||||
if err != nil {
|
||||
log.Errorf("保存新版本失败: %v", err)
|
||||
os.Remove(tmpFile)
|
||||
return
|
||||
}
|
||||
|
||||
// 备份旧版本
|
||||
backupFile := exePath + ".bak"
|
||||
os.Remove(backupFile)
|
||||
if err := os.Rename(exePath, backupFile); err != nil {
|
||||
log.Errorf("备份旧版本失败: %v", err)
|
||||
os.Remove(tmpFile)
|
||||
return
|
||||
}
|
||||
|
||||
// 替换为新版本
|
||||
if err := os.Rename(tmpFile, exePath); err != nil {
|
||||
log.Errorf("替换新版本失败: %v", err)
|
||||
os.Rename(backupFile, exePath) // 恢复旧版本
|
||||
return
|
||||
}
|
||||
|
||||
log.Info("更新完成，正在重启...")
|
||||
|
||||
// 重启服务
|
||||
a.restart()
|
||||
}
|
||||
|
||||
// restart 重启服务
|
||||
func (a *Agent) restart() {
|
||||
exePath, _ := os.Executable()
|
||||
|
||||
if runtime.GOOS == "windows" {
|
||||
// Windows: 启动新进程后退出
|
||||
cmd := exec.Command(exePath, "start")
|
||||
cmd.Start()
|
||||
os.Exit(0)
|
||||
} else {
|
||||
// Linux/macOS: 使用 exec 替换当前进程
|
||||
syscall.Exec(exePath, []string{exePath, "start"}, os.Environ())
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user