feat: 路由改名/kubectl预装/导出YAML精简/Service标签页优化/Alpine镜像源换清华

- 路由 /deploy/credentials → /deploy/configureTools
- kubectl 改为预装(Dockerfile) + 种子数据 preinstall
- 导出YAML精简: Service/Ingress/Deployment 全面清理运行时字段
- DeploymentEditService 只显示匹配 selector 的关联 Service
- Alpine 镜像源 mirrors.aliyun.com → mirrors.tuna.tsinghua.edu.cn

backend/Dockerfile

@@ -17,7 +17,7 @@ FROM golang:1.24-alpine AS builder
 WORKDIR /app
 
 # 使用国内 Alpine 镜像源加速 // Logan.Li
-RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.aliyun.com|g' /etc/apk/repositories
+RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apk/repositories
 RUN apk add --no-cache git ca-certificates tzdata
 
 ENV TZ=Asia/Shanghai
@@ -74,15 +74,20 @@ RUN --mount=type=cache,target=/go/pkg/mod \
 FROM alpine:3.20
 
 # 使用国内 Alpine 镜像源加速 // Logan.Li
-RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.aliyun.com|g' /etc/apk/repositories
+RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apk/repositories
 
 # 安装运行时依赖（核心最小集，重型工具改为懒加载）// Logan.Li
 # bash=kubectl交互终端, curl=健康检查, git=流水线代码拉取, docker-cli=镜像构建推送
-# kubectl/maven/nodejs/helm → 见「发布配置→工具配置」Tab，首次使用自动下载
+# kubectl=预装（~50MB，K8s交互终端必需），maven/nodejs/helm → 工具配置Tab懒加载
 # Pod文件浏览/exec 通过 WebSocket channel 协议直连 K8s API，无需 kubectl
 RUN --mount=type=cache,target=/var/cache/apk \
     apk add ca-certificates tzdata bash curl git docker-cli docker-cli-buildx
 
+# kubectl 预装（~50MB，国内网络从 dl.k8s.io 下载约10s）// Logan.Li
+ARG KUBECTL_VERSION=v1.32.0
+RUN curl -sLo /usr/local/bin/kubectl https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl && \
+    chmod +x /usr/local/bin/kubectl
+
 # npm 淘宝镜像加速（node 懒加载后生效）
 RUN npm config set registry https://registry.npmmirror.com 2>/dev/null || true
 # Maven 阿里云镜像加速（maven 懒加载后生效）

backend/internal/api/handlers/k8s_export.go

@@ -269,6 +269,10 @@ func cleanResourceYAML(obj map[string]interface{}) {
 				delete(meta, "annotations")
 			}
 		}
+		// 移除空的 labels
+		if labels, ok := meta["labels"].(map[string]interface{}); ok && len(labels) == 0 {
+			delete(meta, "labels")
+		}
 	}
 
 	// 删除 status
@@ -276,11 +280,21 @@ func cleanResourceYAML(obj map[string]interface{}) {
 
 	// 清理 spec 中的运行时字段
 	if spec, ok := obj["spec"].(map[string]interface{}); ok {
-		// Service: 移除动态分配的 clusterIP 和 nodePorts
-		if obj["kind"] == "Service" {
+		kind, _ := obj["kind"].(string)
+
+		// Service: 移除动态分配字段和默认值
+		if kind == "Service" {
 			delete(spec, "clusterIP")
 			delete(spec, "clusterIPs")
-			// nodePorts 在 ports 数组内 — 仅移除 NodePort 类型的 nodePort 字段
+			delete(spec, "internalTrafficPolicy")
+			delete(spec, "ipFamilies")
+			delete(spec, "ipFamilyPolicy")
+			// sessionAffinity 默认 "None" → 移除
+			if sa, ok := spec["sessionAffinity"].(string); ok && sa == "None" {
+				delete(spec, "sessionAffinity")
+			}
+			delete(spec, "allocateLoadBalancerNodePorts")
+			// 移除 ports 内的 nodePort（仅 NodePort/LoadBalancer 类型）
 			if ports, ok := spec["ports"].([]interface{}); ok {
 				for _, p := range ports {
 					if pm, ok := p.(map[string]interface{}); ok {
@@ -290,8 +304,9 @@ func cleanResourceYAML(obj map[string]interface{}) {
 			}
 		}
 
-		// Deployment: 清理 template.metadata 和 template.spec 中的运行时字段
-		if obj["kind"] == "Deployment" {
+		// Deployment / StatefulSet / DaemonSet: 清理运行时和默认值
+		if kind == "Deployment" || kind == "StatefulSet" || kind == "DaemonSet" {
+			// 清理 template
 			if template, ok := spec["template"].(map[string]interface{}); ok {
 				if tMeta, ok := template["metadata"].(map[string]interface{}); ok {
 					delete(tMeta, "creationTimestamp")
@@ -304,8 +319,54 @@ func cleanResourceYAML(obj map[string]interface{}) {
 				}
 				if tSpec, ok := template["spec"].(map[string]interface{}); ok {
 					delete(tSpec, "nodeName")
+					delete(tSpec, "serviceAccountName") // 移除 default 值
+					// 清理容器内的 terminationMessagePath/Policy 默认值
+					if containers, ok := tSpec["containers"].([]interface{}); ok {
+						for _, c := range containers {
+							if cm, ok := c.(map[string]interface{}); ok {
+								if tmp, ok := cm["terminationMessagePath"].(string); ok && tmp == "/dev/termination-log" {
+									delete(cm, "terminationMessagePath")
+								}
+								if tmp, ok := cm["terminationMessagePolicy"].(string); ok && tmp == "File" {
+									delete(cm, "terminationMessagePolicy")
+								}
+								// 清理默认 imagePullPolicy
+								if ip, ok := cm["imagePullPolicy"].(string); ok && ip == "Always" {
+									delete(cm, "imagePullPolicy")
+								}
+								// 清理空 resources
+								if res, ok := cm["resources"].(map[string]interface{}); ok && len(res) == 0 {
+									delete(cm, "resources")
+								}
+							}
+						}
+					}
+					// 清理 dnsPolicy 默认值
+					if dp, ok := tSpec["dnsPolicy"].(string); ok && dp == "ClusterFirst" {
+						delete(tSpec, "dnsPolicy")
+					}
+					if rp, ok := tSpec["restartPolicy"].(string); ok && rp == "Always" {
+						delete(tSpec, "restartPolicy")
+					}
+					if tp, ok := tSpec["terminationGracePeriodSeconds"].(float64); ok && tp == 30 {
+						delete(tSpec, "terminationGracePeriodSeconds")
+					}
 				}
 			}
+			// 清理默认值
+			if rhl, ok := spec["revisionHistoryLimit"].(float64); ok && rhl == 10 {
+				delete(spec, "revisionHistoryLimit")
+			}
+			if pds, ok := spec["progressDeadlineSeconds"].(float64); ok && pds == 600 {
+				delete(spec, "progressDeadlineSeconds")
+			}
+		}
+
+		// Ingress: 清理默认值
+		if kind == "Ingress" {
+			if ic, ok := spec["ingressClassName"].(string); ok && ic == "" {
+				delete(spec, "ingressClassName")
+			}
 		}
 	}
 }

backend/internal/api/handlers/kubernetes.go

@@ -1605,13 +1605,14 @@ func (h *KubernetesHandler) listDeploymentsWithNS(c *gin.Context, ns string) {
 	deps, err := client.ListDeployments()
 	if err != nil { c.JSON(500, models.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
 	type DepSummary struct {
-		Namespace         string `json:"namespace"`
-		Name              string `json:"name"`
-		Replicas          int    `json:"replicas"`
-		AvailableReplicas int    `json:"available_replicas"`
-		ReadyReplicas     int    `json:"ready_replicas"`
-		Image             string `json:"image"`
-		Paused            bool   `json:"paused"`
+		Namespace         string            `json:"namespace"`
+		Name              string            `json:"name"`
+		Replicas          int               `json:"replicas"`
+		AvailableReplicas int               `json:"available_replicas"`
+		ReadyReplicas     int               `json:"ready_replicas"`
+		Image             string            `json:"image"`
+		Paused            bool              `json:"paused"`
+		Selector          map[string]string `json:"selector,omitempty"` // matchLabels — 前端 Service Tab 关联用
 	}
 	result := []DepSummary{}
 	for _, d := range deps.Items {
@@ -1625,6 +1626,7 @@ func (h *KubernetesHandler) listDeploymentsWithNS(c *gin.Context, ns string) {
 			ReadyReplicas:     d.Status.ReadyReplicas,
 			Image:             image,
 			Paused:            d.Spec.Paused,
+			Selector:          func() map[string]string { if d.Spec.Selector != nil { return d.Spec.Selector.MatchLabels }; return nil }(),
 		})
 	}
 	c.JSON(200, models.Response{Code: 200, Data: result})

backend/internal/models/deploy_tool.go

@@ -66,9 +66,9 @@ func PredefinedTools() []DeployTool {
 		{
 			Name:           "kubectl",
 			DisplayName:    "Kubectl",
-			Description:    "Kubernetes 命令行工具，用于 K8s 集群交互",
+			Description:    "Kubernetes 命令行工具，用于 K8s 集群交互（已预装在镜像中）",
 			Category:       "k8s",
-			InstallMethod:  ToolLazy,
+			InstallMethod:  ToolPreinstall,
 			BinaryName:     "kubectl",
 			InstallPath:    "/usr/local/bin/kubectl",
 			CheckCommand:   "kubectl version --client --short 2>/dev/null || kubectl version --client 2>/dev/null",

backend/pkg/kubernetesclient/client.go

@@ -290,10 +290,16 @@ type DeploymentItem struct {
 
 type DeploymentSpec struct {
 	Replicas int                `json:"replicas"`
+	Selector *LabelSelector     `json:"selector,omitempty"` // matchLabels — 前端 Service 关联用
 	Template DeploymentTemplate `json:"template"`
 	Paused   bool               `json:"paused"`
 }
 
+// LabelSelector K8s 标签选择器
+type LabelSelector struct {
+	MatchLabels map[string]string `json:"matchLabels,omitempty"`
+}
+
 type DeploymentTemplate struct {
 	Spec PodSpec `json:"spec"`
 }