attacker
ed08ea255e
- Dockerfile: ARG VERSION/BUILD_TIME 通过 ldflags 注入 agent+backend 二进制 - run.sh: 自动从 git tag 获取版本号 - docker-compose: build args 传递 VERSION/BUILD_TIME - backend: BatchUpgradeAgent SSH下载新二进制+重启, /agent/bin 静态文件服务 - frontend: 监控大屏添加批量升级按钮 (闪电图标) - frontend: 服务器编辑/添加表单改为凭证下拉选择器 - frontend: ServerForm 加载 /credentials 列表, 选择后自动填充用户名/认证方式
502 lines
16 KiB
Go
502 lines
16 KiB
Go
package handlers
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import (
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"fmt"
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"log"
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"net/http"
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"strconv"
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"time"
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"ezops/internal/models"
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"github.com/gin-gonic/gin"
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"golang.org/x/crypto/ssh"
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"gorm.io/gorm"
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)
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// AgentInstallHandler Agent 远程安装处理器 // Logan.Li
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type AgentInstallHandler struct {
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db *gorm.DB
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}
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func NewAgentInstallHandler(db *gorm.DB) *AgentInstallHandler {
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return &AgentInstallHandler{db: db}
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}
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// sshDial 复用 webshell.go 的 SSH 连接逻辑
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func sshDial(server models.Server) (*ssh.Client, error) {
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config := &ssh.ClientConfig{
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User: server.Username,
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HostKeyCallback: ssh.InsecureIgnoreHostKey(),
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Timeout: 10 * time.Second,
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}
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switch server.AuthType {
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case "key":
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signer, err := ssh.ParsePrivateKey([]byte(server.SSHKey))
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if err != nil {
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config.Auth = []ssh.AuthMethod{ssh.Password(server.Password)}
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} else {
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config.Auth = []ssh.AuthMethod{ssh.PublicKeys(signer)}
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}
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default:
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config.Auth = []ssh.AuthMethod{ssh.Password(server.Password)}
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}
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addr := server.IP + ":" + strconv.Itoa(server.Port)
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return ssh.Dial("tcp", addr, config)
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}
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// runSSHCommand 在远程主机执行命令并返回输出
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func runSSHCommand(client *ssh.Client, cmd string) (string, error) {
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session, err := client.NewSession()
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if err != nil {
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return "", err
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}
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defer session.Close()
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output, err := session.CombinedOutput(cmd)
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return string(output), err
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}
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// InstallAgent 远程安装 Agent 到指定服务器
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// POST /servers/:id/install-agent
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// 支持传入临时凭证：首次连接成功后自动更新服务器认证凭据
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func (h *AgentInstallHandler) InstallAgent(c *gin.Context) {
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id, _ := strconv.Atoi(c.Param("id"))
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var req struct {
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Username string `json:"username"`
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Password string `json:"password"`
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SSHKey string `json:"ssh_key"`
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AuthType string `json:"auth_type"`
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Token string `json:"token"`
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}
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// 兼容旧调用方式：token 在 query，新方式在 body
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c.ShouldBindJSON(&req)
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if req.Token == "" {
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req.Token = c.Query("token")
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}
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if req.AuthType == "" {
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req.AuthType = "password"
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}
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var server models.Server
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if err := h.db.First(&server, id).Error; err != nil {
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c.JSON(http.StatusNotFound, models.Response{Code: 404, Message: "服务器不存在"})
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return
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}
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if server.Status != "running" {
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// 允许安装，不强制 running 状态
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}
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// 如果请求中提供了凭据，使用请求凭据覆盖服务器存储的凭据进行 SSH
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effectiveServer := server
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if req.Username != "" {
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effectiveServer.Username = req.Username
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}
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if req.Password != "" {
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effectiveServer.Password = req.Password
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}
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if req.SSHKey != "" {
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effectiveServer.SSHKey = req.SSHKey
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effectiveServer.AuthType = "key"
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}
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if req.AuthType != "" && req.AuthType != effectiveServer.AuthType {
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effectiveServer.AuthType = req.AuthType
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}
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// 1. SSH 连接目标主机
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client, err := sshDial(effectiveServer)
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if err != nil {
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log.Printf("[AgentInstall] SSH连接失败 %s: %v", server.IP, err)
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c.JSON(http.StatusOK, models.Response{
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Code: 500,
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Message: "SSH 连接失败: " + formatSSHError(err),
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})
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return
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}
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defer client.Close()
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// 首次连接成功 → 如果服务器之前未配置凭据，自动保存使用的凭据
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if (server.Password == "" && server.SSHKey == "") || server.Username == "" {
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updates := map[string]interface{}{
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"username": effectiveServer.Username,
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"auth_type": effectiveServer.AuthType,
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}
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if effectiveServer.Password != "" {
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updates["password"] = effectiveServer.Password
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}
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if effectiveServer.SSHKey != "" {
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updates["ssh_key"] = effectiveServer.SSHKey
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}
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if server.Username == "" {
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updates["username"] = effectiveServer.Username
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}
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h.db.Model(&server).Updates(updates)
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log.Printf("[AgentInstall] %s 首次连接成功，已自动关联凭证", server.Hostname)
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}
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// 2. 检测系统架构
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archOut, _ := runSSHCommand(client, "uname -m")
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arch := "amd64"
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if len(archOut) > 0 && (contains(archOut, "aarch64") || contains(archOut, "arm64")) {
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arch = "arm64"
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}
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// 3. 构造安装命令（使用 Agent API 服务地址）
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// 从请求头获取后端可访问地址
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serverURL := fmt.Sprintf("http://%s", c.Request.Host)
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token := c.Query("token")
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installCmd := fmt.Sprintf(
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`curl -fsSL %s/agent/install.sh | sudo bash -s -- --server %s --token %s`,
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serverURL, serverURL, token,
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)
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// 4. 执行安装
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installOut, err := runSSHCommand(client, installCmd)
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if err != nil {
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c.JSON(http.StatusOK, models.Response{
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Code: 500,
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Message: "安装命令执行失败（可能需要 sudo 权限或 curl 未安装）",
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Data: installOut,
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})
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return
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}
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// 5. 验证安装是否成功
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verifyOut, _ := runSSHCommand(client, "systemctl is-active aiops-agent 2>/dev/null || echo 'not_found'")
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installed := contains(verifyOut, "active") || contains(verifyOut, "running")
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if installed {
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// 更新服务器 Agent 状态
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h.db.Model(&server).Updates(map[string]interface{}{
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"agent_status": "online",
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"agent_version": "installed",
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"last_check_at": time.Now(),
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})
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}
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c.JSON(http.StatusOK, models.Response{
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Code: 200,
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Message: func() string {
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if installed {
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return "Agent 安装成功，已自动启动并设置开机自启"
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}
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return "安装命令已执行，但 Agent 服务未检测到运行（请查看日志排查）"
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}(),
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Data: gin.H{
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"installed": installed,
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"arch": arch,
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"output": installOut,
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"verify": verifyOut,
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},
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})
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}
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// installOne 安装单个服务器的 Agent（内部方法）
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func (h *AgentInstallHandler) installOne(server models.Server, serverURL, token string) (bool, string, string, error) {
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client, err := sshDial(server)
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if err != nil {
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return false, "", "", fmt.Errorf("SSH连接失败: %w", err)
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}
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defer client.Close()
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if server.Status != "running" {
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return false, "", "", fmt.Errorf("服务器未运行")
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}
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installCmd := fmt.Sprintf(
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`curl -fsSL %s/agent/install.sh | sudo bash -s -- --server %s --token %s`,
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serverURL, serverURL, token,
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)
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installOut, err := runSSHCommand(client, installCmd)
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if err != nil {
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return false, installOut, "", err
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}
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verifyOut, _ := runSSHCommand(client, "systemctl is-active aiops-agent 2>/dev/null || echo 'not_found'")
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installed := contains(verifyOut, "active") || contains(verifyOut, "running")
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if installed {
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h.db.Model(&server).Updates(map[string]interface{}{
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"agent_status": "online",
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"agent_version": "installed",
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"last_check_at": time.Now(),
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})
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}
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return installed, installOut, verifyOut, nil
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}
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// BatchInstallAgent 批量安装 Agent（异步执行，立即返回）// Logan.Li
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// POST /servers/install-agent
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func (h *AgentInstallHandler) BatchInstallAgent(c *gin.Context) {
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var req struct {
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ServerIDs []uint `json:"server_ids"`
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}
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if err := c.ShouldBindJSON(&req); err != nil || len(req.ServerIDs) == 0 {
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c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "请提供要安装的服务器 ID 列表"})
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return
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}
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serverURL := fmt.Sprintf("http://%s", c.Request.Host)
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token := c.Query("token")
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// 异步执行：立即返回，后台 goroutine 逐台安装
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go func() {
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successCount := 0
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for _, sid := range req.ServerIDs {
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var server models.Server
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if err := h.db.First(&server, sid).Error; err != nil {
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log.Printf("[BatchInstall] 服务器 %d 不存在，跳过", sid)
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continue
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}
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installed, _, _, err := h.installOne(server, serverURL, token)
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if err != nil {
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log.Printf("[BatchInstall] %s (%s) 安装失败: %v", server.Hostname, server.IP, err)
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} else {
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successCount++
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if installed {
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log.Printf("[BatchInstall] %s Agent 安装成功", server.Hostname)
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} else {
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log.Printf("[BatchInstall] %s Agent 安装命令已执行但服务未检测到运行", server.Hostname)
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}
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}
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}
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log.Printf("[BatchInstall] 批量安装完成: %d/%d 成功", successCount, len(req.ServerIDs))
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}()
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c.JSON(http.StatusOK, models.Response{
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Code: 200,
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Message: fmt.Sprintf("已提交异步安装任务，共 %d 台主机，正在后台执行…", len(req.ServerIDs)),
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Data: gin.H{"total": len(req.ServerIDs), "async": true},
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})
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}
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// UninstallAgent 远程卸载 Agent
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// POST /api/v1/agent/uninstall
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func (h *AgentInstallHandler) UninstallAgent(c *gin.Context) {
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var req struct {
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Hostname string `json:"hostname"`
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ServerID *uint `json:"server_id"`
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}
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "参数错误"})
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return
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}
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var server models.Server
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if req.ServerID != nil {
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if err := h.db.First(&server, *req.ServerID).Error; err != nil {
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c.JSON(http.StatusNotFound, models.Response{Code: 404, Message: "服务器不存在"})
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return
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}
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} else if req.Hostname != "" {
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if err := h.db.Where("hostname = ? OR ip = ?", req.Hostname, req.Hostname).First(&server).Error; err != nil {
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c.JSON(http.StatusNotFound, models.Response{Code: 404, Message: "未找到服务器: " + req.Hostname})
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return
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}
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} else {
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c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "请提供 hostname 或 server_id"})
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return
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}
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// 无 SSH 凭据的主机（自动注册的）直接改本地状态
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if server.Username == "" || server.Password == "" {
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h.db.Model(&server).Updates(map[string]interface{}{
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"agent_status": "offline", "agent_version": "",
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})
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c.JSON(http.StatusOK, models.Response{Code: 200, Message: "已标记为离线（该主机无SSH凭据，无法远程卸载，请手动执行 systemctl stop aiops-agent）"})
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return
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}
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client, err := sshDial(server)
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if err != nil {
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c.JSON(http.StatusOK, models.Response{Code: 500, Message: "SSH连接失败: " + formatSSHError(err)})
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return
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}
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defer client.Close()
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runSSHCommand(client, "systemctl stop aiops-agent 2>/dev/null; systemctl disable aiops-agent 2>/dev/null; rm -f /usr/local/bin/aiops-agent /etc/systemd/system/aiops-agent.service; systemctl daemon-reload 2>/dev/null")
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h.db.Model(&server).Updates(map[string]interface{}{
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"agent_status": "offline", "agent_version": "",
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})
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c.JSON(http.StatusOK, models.Response{Code: 200, Message: fmt.Sprintf("已卸载 %s (%s) 的 Agent", server.Hostname, server.IP)})
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}
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// BatchUninstallAgent 批量卸载 Agent（异步执行，立即返回）// Logan.Li
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// POST /api/v1/agent/batch-uninstall
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func (h *AgentInstallHandler) BatchUninstallAgent(c *gin.Context) {
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var req struct {
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ServerIDs []uint `json:"server_ids"`
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}
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if err := c.ShouldBindJSON(&req); err != nil || len(req.ServerIDs) == 0 {
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c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "请提供服务器 ID 列表"})
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return
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}
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// 异步执行：立即返回，后台逐台卸载
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go func() {
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successCount := 0
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for _, id := range req.ServerIDs {
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var server models.Server
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if err := h.db.First(&server, id).Error; err != nil {
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log.Printf("[BatchUninstall] 服务器 %d 不存在，跳过", id)
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continue
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}
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if server.Username == "" || server.Password == "" {
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h.db.Model(&server).Updates(map[string]interface{}{"agent_status": "offline", "agent_version": ""})
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log.Printf("[BatchUninstall] %s 无SSH凭据，已标记离线", server.Hostname)
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successCount++
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continue
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}
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client, err := sshDial(server)
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if err != nil {
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log.Printf("[BatchUninstall] %s SSH失败: %v", server.Hostname, err)
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continue
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}
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runSSHCommand(client, "systemctl stop aiops-agent 2>/dev/null; systemctl disable aiops-agent 2>/dev/null; rm -f /usr/local/bin/aiops-agent /etc/systemd/system/aiops-agent.service; systemctl daemon-reload 2>/dev/null")
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client.Close()
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h.db.Model(&server).Updates(map[string]interface{}{"agent_status": "offline", "agent_version": ""})
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log.Printf("[BatchUninstall] %s Agent 已卸载", server.Hostname)
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successCount++
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}
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log.Printf("[BatchUninstall] 批量卸载完成: %d/%d 成功", successCount, len(req.ServerIDs))
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}()
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c.JSON(http.StatusOK, models.Response{
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Code: 200,
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Message: fmt.Sprintf("已提交异步卸载任务，共 %d 台主机，正在后台执行…", len(req.ServerIDs)),
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Data: gin.H{"total": len(req.ServerIDs), "async": true},
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})
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}
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// BatchUpgradeAgent 批量升级 Agent 到最新版本（SSH下载新二进制 + 重启服务）
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// POST /api/v1/agent/batch-upgrade
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func (h *AgentInstallHandler) BatchUpgradeAgent(c *gin.Context) {
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var req struct {
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ServerIDs []uint `json:"server_ids"`
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}
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if err := c.ShouldBindJSON(&req); err != nil || len(req.ServerIDs) == 0 {
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c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "请提供要升级的服务器 ID 列表"})
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return
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}
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serverURL := fmt.Sprintf("http://%s", c.Request.Host)
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// 异步执行：立即返回，后台逐台升级
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go func() {
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successCount := 0
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for _, sid := range req.ServerIDs {
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var server models.Server
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if err := h.db.First(&server, sid).Error; err != nil {
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log.Printf("[BatchUpgrade] 服务器 %d 不存在，跳过", sid)
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continue
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}
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if server.Username == "" || (server.Password == "" && server.SSHKey == "") {
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log.Printf("[BatchUpgrade] %s 无SSH凭据，跳过", server.Hostname)
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continue
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}
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// 检测架构
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client, err := sshDial(server)
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if err != nil {
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log.Printf("[BatchUpgrade] %s SSH连接失败: %v", server.Hostname, err)
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continue
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}
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archOut, _ := runSSHCommand(client, "uname -m")
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binaryFile := "aiops-agent-linux-amd64"
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if len(archOut) > 0 && (contains(archOut, "aarch64") || contains(archOut, "arm64")) {
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binaryFile = "aiops-agent-linux-arm64"
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}
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// 下载新二进制 + 重启服务
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upgradeScript := fmt.Sprintf(
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`curl -fsSL -o /tmp/aiops-agent %s/agent/bin/%s && chmod +x /tmp/aiops-agent && systemctl stop aiops-agent 2>/dev/null; mv /tmp/aiops-agent /usr/local/bin/aiops-agent && systemctl start aiops-agent && echo "UPGRADE_OK"`,
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serverURL, binaryFile,
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)
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out, err := runSSHCommand(client, upgradeScript)
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client.Close()
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if err != nil || !contains(out, "UPGRADE_OK") {
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log.Printf("[BatchUpgrade] %s 升级失败: output=%s err=%v", server.Hostname, out, err)
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continue
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}
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// 更新版本号
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h.db.Model(&server).Updates(map[string]interface{}{
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"agent_version": "latest",
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"last_check_at": time.Now(),
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})
|
||
log.Printf("[BatchUpgrade] %s Agent 升级成功", server.Hostname)
|
||
successCount++
|
||
}
|
||
log.Printf("[BatchUpgrade] 批量升级完成: %d/%d 成功", successCount, len(req.ServerIDs))
|
||
}()
|
||
|
||
c.JSON(http.StatusOK, models.Response{
|
||
Code: 200,
|
||
Message: fmt.Sprintf("已提交异步升级任务，共 %d 台主机，正在后台执行…", len(req.ServerIDs)),
|
||
Data: gin.H{"total": len(req.ServerIDs), "async": true},
|
||
})
|
||
}
|
||
|
||
// RemoteExec 直连 SSH 执行命令（即时返回，无轮询）
|
||
// POST /api/v1/agent/exec
|
||
func (h *AgentInstallHandler) RemoteExec(c *gin.Context) {
|
||
var req struct {
|
||
Hostname string `json:"hostname"`
|
||
Command string `json:"command"`
|
||
Timeout int `json:"timeout"`
|
||
}
|
||
if err := c.ShouldBindJSON(&req); err != nil || req.Hostname == "" || req.Command == "" {
|
||
c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "请提供 hostname 和 command"})
|
||
return
|
||
}
|
||
if req.Timeout <= 0 {
|
||
req.Timeout = 30
|
||
}
|
||
|
||
var server models.Server
|
||
if err := h.db.Where("hostname = ? OR ip = ?", req.Hostname, req.Hostname).First(&server).Error; err != nil {
|
||
c.JSON(http.StatusNotFound, models.Response{Code: 404, Message: "未找到服务器: " + req.Hostname})
|
||
return
|
||
}
|
||
|
||
client, err := sshDial(server)
|
||
if err != nil {
|
||
c.JSON(http.StatusOK, models.Response{Code: 500, Message: "SSH连接失败: " + err.Error()})
|
||
return
|
||
}
|
||
defer client.Close()
|
||
|
||
type result struct {
|
||
out string
|
||
err error
|
||
}
|
||
done := make(chan result, 1)
|
||
go func() {
|
||
out, err := runSSHCommand(client, req.Command)
|
||
done <- result{out, err}
|
||
}()
|
||
|
||
select {
|
||
case r := <-done:
|
||
if r.err != nil {
|
||
c.JSON(http.StatusOK, models.Response{Code: 200, Message: "执行完成", Data: gin.H{"output": r.out, "error": r.err.Error()}})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, models.Response{Code: 200, Message: "执行成功", Data: gin.H{"output": r.out}})
|
||
case <-time.After(time.Duration(req.Timeout) * time.Second):
|
||
c.JSON(http.StatusOK, models.Response{Code: 408, Message: fmt.Sprintf("命令执行超时(%ds)", req.Timeout)})
|
||
}
|
||
}
|