ocdp v1
This commit is contained in:
mangomqy
313
backend/internal/adapter/output/helm/real/helm_client.go
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313
backend/internal/adapter/output/helm/real/helm_client.go
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@ -0,0 +1,313 @@
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package real
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import (
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"context"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"time"
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"github.com/ocdp/cluster-service/internal/domain/entity"
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"github.com/ocdp/cluster-service/internal/domain/repository"
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"helm.sh/helm/v3/pkg/action"
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"helm.sh/helm/v3/pkg/chart/loader"
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"helm.sh/helm/v3/pkg/cli"
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"helm.sh/helm/v3/pkg/release"
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"helm.sh/helm/v3/pkg/storage/driver"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/client-go/discovery"
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"k8s.io/client-go/discovery/cached/memory"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/restmapper"
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"k8s.io/client-go/tools/clientcmd"
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)
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// HelmClient 真实的 Helm 客户端实现
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type HelmClient struct {
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settings *cli.EnvSettings
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}
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// NewHelmClient 创建真实的 Helm 客户端
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func NewHelmClient() repository.HelmClient {
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return &HelmClient{
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settings: cli.New(),
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}
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}
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// getActionConfig 获取 Helm action configuration
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func (h *HelmClient) getActionConfig(cluster *entity.Cluster, namespace string) (*action.Configuration, error) {
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actionConfig := new(action.Configuration)
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// 创建临时 kubeconfig 文件
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kubeconfigContent := cluster.GetKubeConfig()
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tmpDir, err := os.MkdirTemp("", "helm-kubeconfig-*")
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if err != nil {
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return nil, fmt.Errorf("failed to create temp dir: %w", err)
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}
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kubeconfigPath := filepath.Join(tmpDir, "kubeconfig")
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if err := os.WriteFile(kubeconfigPath, []byte(kubeconfigContent), 0600); err != nil {
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return nil, fmt.Errorf("failed to write kubeconfig: %w", err)
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}
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// 使用 kubeconfig 初始化 action config
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if err := actionConfig.Init(
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&kubeconfigGetter{kubeconfigPath: kubeconfigPath},
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namespace,
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os.Getenv("HELM_DRIVER"), // storage driver: configmap, secret, memory
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func(format string, v ...interface{}) {
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// Log function
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},
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); err != nil {
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return nil, fmt.Errorf("failed to initialize action config: %w", err)
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}
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return actionConfig, nil
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}
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// kubeconfigGetter implements RESTClientGetter
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type kubeconfigGetter struct {
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kubeconfigPath string
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}
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func (k *kubeconfigGetter) ToRESTConfig() (*rest.Config, error) {
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return clientcmd.BuildConfigFromFlags("", k.kubeconfigPath)
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}
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func (k *kubeconfigGetter) ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error) {
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config, err := k.ToRESTConfig()
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if err != nil {
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return nil, err
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}
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discoveryClient := discovery.NewDiscoveryClientForConfigOrDie(config)
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// Wrap in a memory cache
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return memory.NewMemCacheClient(discoveryClient), nil
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}
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func (k *kubeconfigGetter) ToRESTMapper() (meta.RESTMapper, error) {
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discoveryClient, err := k.ToDiscoveryClient()
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if err != nil {
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return nil, err
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}
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mapper := restmapper.NewDeferredDiscoveryRESTMapper(discoveryClient)
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return mapper, nil
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}
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func (k *kubeconfigGetter) ToRawKubeConfigLoader() clientcmd.ClientConfig {
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return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
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&clientcmd.ClientConfigLoadingRules{ExplicitPath: k.kubeconfigPath},
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&clientcmd.ConfigOverrides{},
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)
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}
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// Install 安装 Helm Chart
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func (h *HelmClient) Install(ctx context.Context, cluster *entity.Cluster, instance *entity.Instance) error {
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actionConfig, err := h.getActionConfig(cluster, instance.Namespace)
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if err != nil {
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return err
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}
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install := action.NewInstall(actionConfig)
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install.ReleaseName = instance.Name
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install.Namespace = instance.Namespace
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install.CreateNamespace = true
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install.Wait = true
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install.Timeout = 5 * time.Minute
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// 加载 Chart（从本地路径或 OCI registry）
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// 这里简化处理，假设 chart 已经被拉取到本地
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chartPath := fmt.Sprintf("/tmp/charts/%s-%s.tgz", instance.Chart, instance.Version)
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chart, err := loader.Load(chartPath)
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if err != nil {
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return fmt.Errorf("failed to load chart: %w", err)
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}
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// 执行安装
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rel, err := install.Run(chart, instance.Values)
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if err != nil {
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return fmt.Errorf("failed to install release: %w", err)
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}
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// 更新 revision（状态由调用方根据操作结果设置）
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instance.Revision = rel.Version
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// 注意：不在这里设置 Status，让调用方通过 MarkSuccess/MarkFailure 来设置
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return nil
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}
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// Upgrade 升级 Helm Release
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func (h *HelmClient) Upgrade(ctx context.Context, cluster *entity.Cluster, instance *entity.Instance) error {
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actionConfig, err := h.getActionConfig(cluster, instance.Namespace)
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if err != nil {
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return err
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}
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upgrade := action.NewUpgrade(actionConfig)
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upgrade.Namespace = instance.Namespace
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upgrade.Wait = true
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upgrade.Timeout = 5 * time.Minute
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// 加载 Chart
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chartPath := fmt.Sprintf("/tmp/charts/%s-%s.tgz", instance.Chart, instance.Version)
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chart, err := loader.Load(chartPath)
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if err != nil {
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return fmt.Errorf("failed to load chart: %w", err)
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}
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// 执行升级
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rel, err := upgrade.Run(instance.Name, chart, instance.Values)
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if err != nil {
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return fmt.Errorf("failed to upgrade release: %w", err)
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}
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// 更新 revision（状态由调用方根据操作结果设置）
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instance.Revision = rel.Version
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// 注意：不在这里设置 Status，让调用方通过 MarkSuccess/MarkFailure 来设置
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return nil
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}
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// Uninstall 卸载 Helm Release
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func (h *HelmClient) Uninstall(ctx context.Context, cluster *entity.Cluster, releaseName, namespace string) error {
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actionConfig, err := h.getActionConfig(cluster, namespace)
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if err != nil {
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return err
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}
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uninstall := action.NewUninstall(actionConfig)
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uninstall.Wait = true
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uninstall.Timeout = 5 * time.Minute
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_, err = uninstall.Run(releaseName)
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if err != nil {
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if errors.Is(err, driver.ErrReleaseNotFound) {
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return entity.ErrInstanceNotFound
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}
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return fmt.Errorf("failed to uninstall release: %w", err)
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}
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return nil
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}
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// Rollback 回滚 Helm Release
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func (h *HelmClient) Rollback(ctx context.Context, cluster *entity.Cluster, releaseName, namespace string, revision int) error {
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actionConfig, err := h.getActionConfig(cluster, namespace)
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if err != nil {
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return err
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}
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rollback := action.NewRollback(actionConfig)
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rollback.Version = revision
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rollback.Wait = true
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rollback.Timeout = 5 * time.Minute
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if err := rollback.Run(releaseName); err != nil {
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return fmt.Errorf("failed to rollback release: %w", err)
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}
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return nil
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}
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// GetStatus 获取 Release 状态
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func (h *HelmClient) GetStatus(ctx context.Context, cluster *entity.Cluster, releaseName, namespace string) (*entity.Instance, error) {
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actionConfig, err := h.getActionConfig(cluster, namespace)
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if err != nil {
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return nil, err
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}
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status := action.NewStatus(actionConfig)
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rel, err := status.Run(releaseName)
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if err != nil {
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return nil, fmt.Errorf("failed to get release status: %w", err)
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}
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return h.convertReleaseToInstance(rel), nil
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}
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// GetHistory 获取 Release 历史
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func (h *HelmClient) GetHistory(ctx context.Context, cluster *entity.Cluster, releaseName, namespace string) ([]*entity.ReleaseHistory, error) {
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actionConfig, err := h.getActionConfig(cluster, namespace)
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if err != nil {
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return nil, err
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}
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history := action.NewHistory(actionConfig)
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history.Max = 256
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releases, err := history.Run(releaseName)
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if err != nil {
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return nil, fmt.Errorf("failed to get release history: %w", err)
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}
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result := make([]*entity.ReleaseHistory, 0, len(releases))
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for _, rel := range releases {
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result = append(result, &entity.ReleaseHistory{
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Revision: rel.Version,
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Updated: rel.Info.LastDeployed.Time,
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Status: entity.InstanceStatus(rel.Info.Status),
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Chart: rel.Chart.Metadata.Name,
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AppVersion: rel.Chart.Metadata.AppVersion,
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Description: rel.Info.Description,
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})
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}
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return result, nil
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}
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// List 列出集群中的所有 Releases
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func (h *HelmClient) List(ctx context.Context, cluster *entity.Cluster, namespace string) ([]*entity.Instance, error) {
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actionConfig, err := h.getActionConfig(cluster, namespace)
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if err != nil {
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return nil, err
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}
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list := action.NewList(actionConfig)
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if namespace == "" {
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list.AllNamespaces = true
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}
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releases, err := list.Run()
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if err != nil {
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return nil, fmt.Errorf("failed to list releases: %w", err)
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}
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instances := make([]*entity.Instance, 0, len(releases))
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for _, rel := range releases {
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instances = append(instances, h.convertReleaseToInstance(rel))
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}
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return instances, nil
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}
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// GetValues 获取 Release 的 values
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func (h *HelmClient) GetValues(ctx context.Context, cluster *entity.Cluster, releaseName, namespace string) (map[string]interface{}, error) {
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actionConfig, err := h.getActionConfig(cluster, namespace)
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if err != nil {
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return nil, err
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}
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getValues := action.NewGetValues(actionConfig)
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values, err := getValues.Run(releaseName)
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if err != nil {
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return nil, fmt.Errorf("failed to get values: %w", err)
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}
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return values, nil
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}
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// convertReleaseToInstance 转换 Helm Release 为 Instance
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func (h *HelmClient) convertReleaseToInstance(rel *release.Release) *entity.Instance {
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return &entity.Instance{
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Name: rel.Name,
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Namespace: rel.Namespace,
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Chart: rel.Chart.Metadata.Name,
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Version: rel.Chart.Metadata.Version,
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Status: entity.InstanceStatus(rel.Info.Status),
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Revision: rel.Version,
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Values: rel.Config,
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UpdatedAt: rel.Info.LastDeployed.Time,
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}
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}
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