feat: add k8s cluster resource management module
- Add K8s module with kubeconfig storage in cluster_config table - Implement resource list APIs for 8 kinds: namespace, deployment, statefulset, service, configmap, pod, pv, pvc - Add K8sResourceList page with sidebar navigation and resource tables - Support YAML upload/input dialog for resource creation via dynamic client - Add kubeconfig settings drawer - Increase main content width from lg to xl for better table display - Add navigation link for cluster resources in top bar 🤖 Generated with [Qoder][https://qoder.com]
This commit is contained in:
loveuer
301
internal/module/k8s/handler.resource.go
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301
internal/module/k8s/handler.resource.go
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@@ -0,0 +1,301 @@
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package k8s
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import (
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"context"
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"encoding/json"
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"fmt"
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"gitea.loveuer.com/loveuer/cluster/internal/model"
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"gitea.loveuer.com/loveuer/cluster/pkg/resp"
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"gitea.loveuer.com/loveuer/cluster/pkg/store"
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"github.com/gofiber/fiber/v3"
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"gorm.io/gorm"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/client-go/dynamic"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/tools/clientcmd"
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"sigs.k8s.io/yaml"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func getK8sClient(db *gorm.DB) (*kubernetes.Clientset, error) {
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var config model.ClusterConfig
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if err := db.Where("key = ?", "kubeconfig").First(&config).Error; err != nil {
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return nil, fmt.Errorf("kubeconfig not found: %w", err)
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}
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if config.Value == "" {
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return nil, fmt.Errorf("kubeconfig is empty")
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}
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clientConfig, err := clientcmd.RESTConfigFromKubeConfig([]byte(config.Value))
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if err != nil {
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return nil, fmt.Errorf("failed to parse kubeconfig: %w", err)
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}
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clientset, err := kubernetes.NewForConfig(clientConfig)
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if err != nil {
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return nil, fmt.Errorf("failed to create k8s client: %w", err)
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}
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return clientset, nil
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}
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func K8sNamespaceList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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namespaces, err := clientset.CoreV1().Namespaces().List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": namespaces.Items,
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})
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}
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}
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func K8sDeploymentList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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namespace := c.Query("namespace", "")
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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deployments, err := clientset.AppsV1().Deployments(namespace).List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": deployments.Items,
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})
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}
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}
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func K8sStatefulSetList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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namespace := c.Query("namespace", "")
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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statefulsets, err := clientset.AppsV1().StatefulSets(namespace).List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": statefulsets.Items,
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})
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}
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}
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func K8sConfigMapList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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namespace := c.Query("namespace", "")
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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configmaps, err := clientset.CoreV1().ConfigMaps(namespace).List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": configmaps.Items,
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})
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}
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}
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func K8sPodList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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namespace := c.Query("namespace", "")
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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pods, err := clientset.CoreV1().Pods(namespace).List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": pods.Items,
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})
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}
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}
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func K8sPVList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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pvs, err := clientset.CoreV1().PersistentVolumes().List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": pvs.Items,
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})
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}
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}
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func K8sPVCList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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namespace := c.Query("namespace", "")
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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pvcs, err := clientset.CoreV1().PersistentVolumeClaims(namespace).List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": pvcs.Items,
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})
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}
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}
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func K8sServiceList(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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namespace := c.Query("namespace", "")
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clientset, err := getK8sClient(db)
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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services, err := clientset.CoreV1().Services(namespace).List(c.Context(), metav1.ListOptions{})
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if err != nil {
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return resp.R500(c, "", nil, err)
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}
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return resp.R200(c, map[string]any{
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"items": services.Items,
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})
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}
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}
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func K8sResourceApply(ctx context.Context, db *gorm.DB, store store.Store) fiber.Handler {
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return func(c fiber.Ctx) error {
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var req struct {
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Yaml string `json:"yaml"`
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}
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if err := json.Unmarshal(c.Body(), &req); err != nil {
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return resp.R400(c, "", nil, err)
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}
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if req.Yaml == "" {
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return resp.R400(c, "", nil, fmt.Errorf("yaml content is empty"))
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}
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var config model.ClusterConfig
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if err := db.Where("key = ?", "kubeconfig").First(&config).Error; err != nil {
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return resp.R500(c, "", nil, fmt.Errorf("kubeconfig not found: %w", err))
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}
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if config.Value == "" {
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return resp.R500(c, "", nil, fmt.Errorf("kubeconfig is empty"))
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}
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clientConfig, err := clientcmd.RESTConfigFromKubeConfig([]byte(config.Value))
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if err != nil {
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return resp.R500(c, "", nil, fmt.Errorf("failed to parse kubeconfig: %w", err))
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}
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dynamicClient, err := dynamic.NewForConfig(clientConfig)
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if err != nil {
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return resp.R500(c, "", nil, fmt.Errorf("failed to create dynamic client: %w", err))
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}
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var obj unstructured.Unstructured
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if err := yaml.Unmarshal([]byte(req.Yaml), &obj); err != nil {
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return resp.R400(c, "", nil, fmt.Errorf("failed to parse yaml: %w", err))
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}
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gvk := obj.GroupVersionKind()
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namespace := obj.GetNamespace()
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name := obj.GetName()
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if name == "" {
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return resp.R400(c, "", nil, fmt.Errorf("resource name is required"))
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}
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gvr := schema.GroupVersionResource{
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Group: gvk.Group,
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Version: gvk.Version,
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Resource: getResourceName(gvk.Kind),
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}
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var result *unstructured.Unstructured
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if namespace != "" {
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result, err = dynamicClient.Resource(gvr).Namespace(namespace).Create(c.Context(), &obj, metav1.CreateOptions{})
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} else {
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result, err = dynamicClient.Resource(gvr).Create(c.Context(), &obj, metav1.CreateOptions{})
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}
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if err != nil {
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return resp.R500(c, "", nil, fmt.Errorf("failed to apply resource: %w", err))
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}
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return resp.R200(c, map[string]any{
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"name": result.GetName(),
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"namespace": result.GetNamespace(),
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"kind": result.GetKind(),
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})
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}
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}
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func getResourceName(kind string) string {
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kindToResource := map[string]string{
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"Namespace": "namespaces",
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"Deployment": "deployments",
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"StatefulSet": "statefulsets",
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"Service": "services",
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"ConfigMap": "configmaps",
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"Pod": "pods",
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"PersistentVolume": "persistentvolumes",
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"PersistentVolumeClaim": "persistentvolumeclaims",
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"Secret": "secrets",
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"Ingress": "ingresses",
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"DaemonSet": "daemonsets",
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"Job": "jobs",
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"CronJob": "cronjobs",
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"ReplicaSet": "replicasets",
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"ServiceAccount": "serviceaccounts",
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"Role": "roles",
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"RoleBinding": "rolebindings",
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"ClusterRole": "clusterroles",
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"ClusterRoleBinding": "clusterrolebindings",
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}
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if resource, ok := kindToResource[kind]; ok {
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return resource
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}
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return kind + "s"
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}
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