mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-11 17:04:22 -05:00
231 lines
8.5 KiB
Go
231 lines
8.5 KiB
Go
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/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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/*
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Package client provides a versions API specific implementation of the general API client.
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*/
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package client
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import (
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"context"
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"errors"
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"fmt"
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"path"
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"golang.org/x/mod/semver"
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apiclient "github.com/edgelesssys/constellation/v2/internal/api/client"
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apifetcher "github.com/edgelesssys/constellation/v2/internal/api/fetcher"
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versionsapi "github.com/edgelesssys/constellation/v2/internal/api/versions"
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"github.com/edgelesssys/constellation/v2/internal/constants"
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"github.com/edgelesssys/constellation/v2/internal/logger"
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)
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// VersionsClient is a client for the versions API.
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type VersionsClient struct {
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*apiclient.Client
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}
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// NewClient creates a new client for the versions API.
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func NewClient(ctx context.Context, region, bucket, distributionID string, dryRun bool,
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log *logger.Logger,
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) (*VersionsClient, error) {
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genericClient, err := apiclient.NewClient(ctx, region, bucket, distributionID, dryRun, log)
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return &VersionsClient{genericClient}, err
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}
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// NewReadOnlyClient creates a new read-only client.
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// This client can be used to fetch objects but cannot write updates.
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func NewReadOnlyClient(ctx context.Context, region, bucket, distributionID string,
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log *logger.Logger,
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) (*VersionsClient, error) {
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genericClient, err := apiclient.NewReadOnlyClient(ctx, region, bucket, distributionID, log)
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return &VersionsClient{genericClient}, err
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}
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// FetchVersionList fetches the given version list from the versions API.
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func (c *VersionsClient) FetchVersionList(ctx context.Context, list versionsapi.List) (versionsapi.List, error) {
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return apiclient.Fetch(ctx, c.Client, list)
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}
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// UpdateVersionList updates the given version list in the versions API.
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func (c *VersionsClient) UpdateVersionList(ctx context.Context, list versionsapi.List) error {
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semver.Sort(list.Versions)
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return apiclient.Update(ctx, c.Client, list)
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}
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// FetchVersionLatest fetches the latest version from the versions API.
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func (c *VersionsClient) FetchVersionLatest(ctx context.Context, latest versionsapi.Latest) (versionsapi.Latest, error) {
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return apiclient.Fetch(ctx, c.Client, latest)
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}
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// UpdateVersionLatest updates the latest version in the versions API.
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func (c *VersionsClient) UpdateVersionLatest(ctx context.Context, latest versionsapi.Latest) error {
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return apiclient.Update(ctx, c.Client, latest)
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}
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// FetchImageInfo fetches the given image info from the versions API.
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func (c *VersionsClient) FetchImageInfo(ctx context.Context, imageInfo versionsapi.ImageInfo) (versionsapi.ImageInfo, error) {
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return apiclient.Fetch(ctx, c.Client, imageInfo)
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}
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// UpdateImageInfo updates the given image info in the versions API.
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func (c *VersionsClient) UpdateImageInfo(ctx context.Context, imageInfo versionsapi.ImageInfo) error {
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return apiclient.Update(ctx, c.Client, imageInfo)
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}
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// FetchCLIInfo fetches the given CLI info from the versions API.
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func (c *VersionsClient) FetchCLIInfo(ctx context.Context, cliInfo versionsapi.CLIInfo) (versionsapi.CLIInfo, error) {
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return apiclient.Fetch(ctx, c.Client, cliInfo)
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}
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// UpdateCLIInfo updates the given CLI info in the versions API.
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func (c *VersionsClient) UpdateCLIInfo(ctx context.Context, cliInfo versionsapi.CLIInfo) error {
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return apiclient.Update(ctx, c.Client, cliInfo)
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}
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// DeleteRef deletes the given ref from the versions API.
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func (c *VersionsClient) DeleteRef(ctx context.Context, ref string) error {
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if err := versionsapi.ValidateRef(ref); err != nil {
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return fmt.Errorf("validating ref: %w", err)
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}
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refPath := path.Join(constants.CDNAPIPrefix, "ref", ref)
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if err := c.Client.DeletePath(ctx, refPath); err != nil {
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return fmt.Errorf("deleting ref path: %w", err)
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}
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return nil
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}
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// DeleteVersion deletes the given version from the versions API.
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// The version will be removed from version lists and latest versions, and the versioned
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// objects are deleted.
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// Notice that the versions API can get into an inconsistent state if the version is the latest
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// version but there is no older version of the same minor version available.
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// Manual update of latest versions is required in this case.
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func (c *VersionsClient) DeleteVersion(ctx context.Context, ver versionsapi.Version) error {
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var retErr error
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c.Client.Log.Debugf("Deleting version %s from minor version list", ver.Version)
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possibleNewLatest, err := c.deleteVersionFromMinorVersionList(ctx, ver)
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if err != nil {
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retErr = errors.Join(retErr, fmt.Errorf("removing from minor version list: %w", err))
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}
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c.Client.Log.Debugf("Checking latest version for %s", ver.Version)
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if err := c.deleteVersionFromLatest(ctx, ver, possibleNewLatest); err != nil {
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retErr = errors.Join(retErr, fmt.Errorf("updating latest version: %w", err))
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}
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c.Client.Log.Debugf("Deleting artifact path %s for %s", ver.ArtifactPath(versionsapi.APIV1), ver.Version)
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if err := c.Client.DeletePath(ctx, ver.ArtifactPath(versionsapi.APIV1)); err != nil {
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retErr = errors.Join(retErr, fmt.Errorf("deleting artifact path: %w", err))
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}
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return retErr
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}
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func (c *VersionsClient) deleteVersionFromMinorVersionList(ctx context.Context, ver versionsapi.Version,
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) (*versionsapi.Latest, error) {
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minorList := versionsapi.List{
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Ref: ver.Ref,
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Stream: ver.Stream,
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Granularity: versionsapi.GranularityMinor,
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Base: ver.WithGranularity(versionsapi.GranularityMinor),
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Kind: versionsapi.VersionKindImage,
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}
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c.Client.Log.Debugf("Fetching minor version list for version %s", ver.Version)
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minorList, err := c.FetchVersionList(ctx, minorList)
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var notFoundErr *apifetcher.NotFoundError
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if errors.As(err, ¬FoundErr) {
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c.Client.Log.Warnf("Minor version list for version %s not found", ver.Version)
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c.Client.Log.Warnf("Skipping update of minor version list")
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return nil, nil
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} else if err != nil {
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return nil, fmt.Errorf("fetching minor version list for version %s: %w", ver.Version, err)
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}
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if !minorList.Contains(ver.Version) {
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c.Client.Log.Warnf("Version %s is not in minor version list %s", ver.Version, minorList.JSONPath())
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c.Client.Log.Warnf("Skipping update of minor version list")
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return nil, nil
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}
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semver.Sort(minorList.Versions)
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for i, v := range minorList.Versions {
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if v == ver.Version {
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minorList.Versions = append(minorList.Versions[:i], minorList.Versions[i+1:]...)
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break
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}
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}
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var latest *versionsapi.Latest
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if len(minorList.Versions) != 0 {
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latest = &versionsapi.Latest{
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Ref: ver.Ref,
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Stream: ver.Stream,
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Kind: versionsapi.VersionKindImage,
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Version: minorList.Versions[len(minorList.Versions)-1],
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}
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c.Client.Log.Debugf("Possible latest version replacement %q", latest.Version)
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}
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if c.Client.DryRun {
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c.Client.Log.Debugf("DryRun: Updating minor version list %s to %v", minorList.JSONPath(), minorList)
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return latest, nil
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}
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c.Client.Log.Debugf("Updating minor version list %s", minorList.JSONPath())
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if err := c.UpdateVersionList(ctx, minorList); err != nil {
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return latest, fmt.Errorf("updating minor version list %s: %w", minorList.JSONPath(), err)
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}
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c.Client.Log.Debugf("Removed version %s from minor version list %s", ver.Version, minorList.JSONPath())
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return latest, nil
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}
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func (c *VersionsClient) deleteVersionFromLatest(ctx context.Context, ver versionsapi.Version, possibleNewLatest *versionsapi.Latest,
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) error {
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latest := versionsapi.Latest{
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Ref: ver.Ref,
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Stream: ver.Stream,
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Kind: versionsapi.VersionKindImage,
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}
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c.Client.Log.Debugf("Fetching latest version from %s", latest.JSONPath())
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latest, err := c.FetchVersionLatest(ctx, latest)
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var notFoundErr *apifetcher.NotFoundError
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if errors.As(err, ¬FoundErr) {
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c.Client.Log.Warnf("Latest version for %s not found", latest.JSONPath())
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return nil
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} else if err != nil {
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return fmt.Errorf("fetching latest version: %w", err)
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}
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if latest.Version != ver.Version {
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c.Client.Log.Debugf("Latest version is %s, not the deleted version %s", latest.Version, ver.Version)
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return nil
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}
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if possibleNewLatest == nil {
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c.Client.Log.Errorf("Latest version is %s, but no new latest version was found", latest.Version)
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c.Client.Log.Errorf("A manual update of latest at %s might be needed", latest.JSONPath())
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return fmt.Errorf("latest version is %s, but no new latest version was found", latest.Version)
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}
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if c.Client.DryRun {
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c.Client.Log.Debugf("Would update latest version from %s to %s", latest.Version, possibleNewLatest.Version)
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return nil
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}
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c.Client.Log.Infof("Updating latest version from %s to %s", latest.Version, possibleNewLatest.Version)
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if err := c.UpdateVersionLatest(ctx, *possibleNewLatest); err != nil {
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return fmt.Errorf("updating latest version: %w", err)
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}
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return nil
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}
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