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/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")
+			}
 		}
 	}
 }