refactor(k8s): Q2 kubernetes.go 模块化拆分 — 4204行单文件→12个域文件
将 handlers/kubernetes.go (4204行/134函数) 按业务域拆分为: - kubernetes.go (106L): struct + constructor + 共享helpers - k8s_cluster.go (642L): 集群CRUD + 同步 + RBAC - k8s_workload.go (696L): Deployment/STS/DS/ReplicaSet操作 - k8s_pod.go (653L): Pod日志/终端/exec/指标 - k8s_pod_files.go (206L): Pod文件浏览/上传/下载 - k8s_resource.go (351L): Service/Ingress/ConfigMap/Secret/PVC/Topology - k8s_hpa_cronjob.go (384L): HPA + CronJob - k8s_yaml.go (213L): YAML get/update/delete/apply - k8s_namespace.go (305L): Namespace CRUD - k8s_events.go (207L): 事件列表+聚合 - k8s_node.go (428L): Node详情+资源分配 - k8s_compare.go (146L): 多集群对比 验收: go build零错误, 425条路由不变, 26个K8s API端点回归测试全通过
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package handlers
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import (
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"encoding/base64"
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"fmt"
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"io"
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"log"
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"path"
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"strconv"
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"strings"
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"ezops/internal/models"
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"github.com/gin-gonic/gin"
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)
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func (h *KubernetesHandler) ListPodFilesNS(c *gin.Context) {
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h.listPodFilesWithNS(c, c.Param("namespace"))
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}
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func (h *KubernetesHandler) listPodFilesWithNS(c *gin.Context, ns string) {
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clusterID, _ := strconv.Atoi(c.Param("id"))
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if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
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podName := c.Param("podName")
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var req struct {
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Path string `json:"path"`
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Container string `json:"container"`
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}
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if err := c.ShouldBindJSON(&req); err != nil { c.JSON(400, models.Response{Code: 400, Message: "参数错误: " + err.Error()}); return }
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if req.Path == "" { req.Path = "/" }
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client, _, err := h.getK8sClient(clusterID)
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if err != nil { c.JSON(500, models.Response{Code: 500, Message: err.Error()}); return }
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// ls -la — BusyBox ignores --time-style, use default "Mon DD HH:MM" format
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cmd := []string{"ls", "-la", req.Path}
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result, err := client.ExecInPod(ns, podName, req.Container, cmd)
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if err != nil { c.JSON(500, models.Response{Code: 500, Message: "执行 ls 失败: " + err.Error()}); return }
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type FileInfo struct {
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Name string `json:"name"`
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Size string `json:"size"`
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Mode string `json:"mode"`
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ModTime string `json:"mod_time"`
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IsDir bool `json:"is_dir"`
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}
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files := []FileInfo{}
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output := result.Stdout // WebSocket output is already clean text
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for _, line := range strings.Split(output, "\n") {
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line = strings.TrimSpace(line)
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if line == "" || strings.HasPrefix(line, "total ") { continue }
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fields := strings.Fields(line)
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if len(fields) < 7 { continue }
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mode := fields[0]
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if len(mode) == 0 || (mode[0] != 'd' && mode[0] != '-' && mode[0] != 'l') { continue }
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size := fields[4]
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// BusyBox ls date format: "Jun 23 02:17" (3 fields: month day time)
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// GNU ls --time-style: "2026-06-23T02:17:00" (1 field)
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// Detect format: if fields[5] contains ":" it's time-only (BusyBox style)
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var name, modTime string
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if strings.Contains(fields[5], ":") || strings.Contains(fields[5], "T") {
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// GNU style: single timestamp field
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modTime = fields[5]
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name = strings.Join(fields[6:], " ")
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} else {
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// BusyBox style: "Mon DD HH:MM" = 3 fields starting at index 5
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modTime = strings.Join(fields[5:8], " ")
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name = strings.Join(fields[8:], " ")
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}
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if name == "" || name == "." || name == ".." { continue }
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files = append(files, FileInfo{
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Name: name,
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Size: size,
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Mode: mode,
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ModTime: modTime,
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IsDir: mode[0] == 'd',
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})
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}
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c.JSON(200, models.Response{Code: 200, Message: "success", Data: gin.H{"path": req.Path, "files": files}})
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}
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// DownloadPodFileNS 下载 Pod 内指定路径的文件（通过 exec cat）
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func (h *KubernetesHandler) DownloadPodFileNS(c *gin.Context) {
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h.downloadPodFileWithNS(c, c.Param("namespace"))
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}
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func (h *KubernetesHandler) downloadPodFileWithNS(c *gin.Context, ns string) {
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clusterID, _ := strconv.Atoi(c.Param("id"))
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if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
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podName := c.Param("podName")
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filePath := c.Query("path")
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container := c.Query("container")
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if filePath == "" { c.JSON(400, models.Response{Code: 400, Message: "path 参数不能为空"}); return }
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client, _, err := h.getK8sClient(clusterID)
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if err != nil { c.JSON(500, models.Response{Code: 500, Message: err.Error()}); return }
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cmd := []string{"cat", filePath}
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result, err := client.ExecInPod(ns, podName, container, cmd)
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if err != nil { c.JSON(500, models.Response{Code: 500, Message: "读取文件失败: " + err.Error()}); return }
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content := result.Stdout
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fileName := path.Base(filePath)
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c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", fileName))
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c.Header("Content-Type", "application/octet-stream")
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c.String(200, content)
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}
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// UploadPodFileNS 上传文件到 Pod 容器内指定目录（通过 exec base64 分块写入）
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func (h *KubernetesHandler) UploadPodFileNS(c *gin.Context) {
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h.uploadPodFileWithNS(c, c.Param("namespace"))
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}
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func (h *KubernetesHandler) uploadPodFileWithNS(c *gin.Context, ns string) {
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clusterID, _ := strconv.Atoi(c.Param("id"))
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if clusterID == 0 {
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clusterID = h.resolveClusterCode(c.Param("clusterCode"))
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}
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podName := c.Param("podName")
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container := c.PostForm("container")
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targetDir := c.PostForm("path")
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if targetDir == "" {
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targetDir = "/"
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}
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// 读取上传的文件
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file, header, err := c.Request.FormFile("file")
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if err != nil {
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c.JSON(400, models.Response{Code: 400, Message: "文件上传失败: " + err.Error()})
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return
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}
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defer file.Close()
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// 限制文件大小 10MB
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const maxUploadSize = 10 << 20 // 10MB
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if header.Size > maxUploadSize {
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c.JSON(400, models.Response{Code: 400, Message: fmt.Sprintf("文件过大: %d bytes, 上限 %d bytes", header.Size, maxUploadSize)})
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return
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}
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content, err := io.ReadAll(file)
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if err != nil {
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c.JSON(500, models.Response{Code: 500, Message: "读取文件失败: " + err.Error()})
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return
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}
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client, _, err := h.getK8sClient(clusterID)
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if err != nil {
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c.JSON(500, models.Response{Code: 500, Message: err.Error()})
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return
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}
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// 目标完整路径
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targetFile := strings.TrimRight(targetDir, "/") + "/" + header.Filename
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// 确保目标目录存在
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_, _ = client.ExecInPod(ns, podName, container, []string{"mkdir", "-p", targetDir})
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// base64 分块写入：每块 3000 字节 base64 (~2250 bytes 二进制)，保证 URL 长度安全
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encoded := base64.StdEncoding.EncodeToString(content)
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const chunkSize = 3000
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first := true
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for i := 0; i < len(encoded); i += chunkSize {
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end := i + chunkSize
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if end > len(encoded) {
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end = len(encoded)
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}
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chunk := encoded[i:end]
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var cmd []string
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if first {
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// 首块：创建/覆盖文件
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cmd = []string{"sh", "-c", fmt.Sprintf("echo -n '%s' | base64 -d > '%s'", chunk, targetFile)}
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first = false
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} else {
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// 后续块：追加
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cmd = []string{"sh", "-c", fmt.Sprintf("echo -n '%s' | base64 -d >> '%s'", chunk, targetFile)}
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}
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result, err := client.ExecInPod(ns, podName, container, cmd)
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if err != nil {
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stderr := ""
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if result != nil {
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stderr = result.Stderr
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}
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c.JSON(500, models.Response{Code: 500, Message: fmt.Sprintf("写入文件失败 (chunk %d): %s\n%s", i/chunkSize, err.Error(), stderr)})
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return
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}
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}
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// 验证文件大小
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verifyResult, verifyErr := client.ExecInPod(ns, podName, container, []string{"stat", "-c", "%s", targetFile})
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writtenSize := ""
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if verifyErr == nil && verifyResult != nil {
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writtenSize = strings.TrimSpace(verifyResult.Stdout)
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}
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log.Printf("[UploadPodFile] %s/%s → %s (%d bytes, %d chunks)", ns, podName, targetFile, len(content), (len(encoded)+chunkSize-1)/chunkSize)
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c.JSON(200, models.Response{
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Code: 200,
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Message: "上传成功",
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Data: gin.H{
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"path": targetFile,
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"name": header.Filename,
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"size": len(content),
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"verify": writtenSize,
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},
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})
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}
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// ============================================================================
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// M13: 多集群资源对比看板 (Multi-Cluster Comparison Dashboard) // Logan.Li
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// ============================================================================
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// GetMultiClusterComparison 聚合所有集群的资源数据进行对比
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