mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-10-01 01:36:09 -04:00
229 lines
7.2 KiB
Go
229 lines
7.2 KiB
Go
/*
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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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package main
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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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"time"
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"github.com/edgelesssys/constellation/v2/internal/api/attestationconfigapi"
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"github.com/edgelesssys/constellation/v2/internal/attestation/variant"
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"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
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"github.com/edgelesssys/constellation/v2/internal/file"
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"github.com/edgelesssys/constellation/v2/internal/logger"
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"github.com/edgelesssys/constellation/v2/internal/staticupload"
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"github.com/edgelesssys/constellation/v2/internal/verify"
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"github.com/spf13/afero"
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"github.com/spf13/cobra"
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"go.uber.org/zap"
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)
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func newUploadCmd() *cobra.Command {
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uploadCmd := &cobra.Command{
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Use: "upload {azure|aws} {snp-report|guest-firmware} <path>",
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Short: "Upload an object to the attestationconfig API",
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Long: fmt.Sprintf("Upload a new object to the attestationconfig API. For snp-reports the new object is added to a cache folder first."+
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"The CLI then determines the lowest version within the cache-window present in the cache and writes that value to the config api if necessary. "+
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"For guest-firmware objects the object is added to the API directly. "+
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"Please authenticate with AWS through your preferred method (e.g. environment variables, CLI)"+
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"to be able to upload to S3. Set the %s and %s environment variables to authenticate with cosign.",
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envCosignPrivateKey, envCosignPwd,
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),
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Example: "COSIGN_PASSWORD=$CPW COSIGN_PRIVATE_KEY=$CKEY cli upload azure snp-report /some/path/report.json",
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Args: cobra.MatchAll(cobra.ExactArgs(3), isCloudProvider(0), isValidKind(1)),
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PreRunE: envCheck,
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RunE: runUpload,
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}
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uploadCmd.Flags().StringP("upload-date", "d", "", "upload a version with this date as version name.")
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uploadCmd.Flags().BoolP("force", "f", false, "Use force to manually push a new latest version."+
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" The version gets saved to the cache but the version selection logic is skipped.")
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uploadCmd.Flags().IntP("cache-window-size", "s", versionWindowSize, "Number of versions to be considered for the latest version.")
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return uploadCmd
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}
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func envCheck(_ *cobra.Command, _ []string) error {
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if os.Getenv(envCosignPrivateKey) == "" || os.Getenv(envCosignPwd) == "" {
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return fmt.Errorf("please set both %s and %s environment variables", envCosignPrivateKey, envCosignPwd)
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}
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cosignPwd = os.Getenv(envCosignPwd)
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privateKey = os.Getenv(envCosignPrivateKey)
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return nil
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}
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func runUpload(cmd *cobra.Command, args []string) (retErr error) {
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ctx := cmd.Context()
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log := logger.New(logger.PlainLog, zap.DebugLevel).Named("attestationconfigapi")
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uploadCfg, err := newConfig(cmd, ([3]string)(args[:3]))
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if err != nil {
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return fmt.Errorf("parsing cli flags: %w", err)
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}
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client, clientClose, err := attestationconfigapi.NewClient(
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ctx,
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staticupload.Config{
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Bucket: uploadCfg.bucket,
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Region: uploadCfg.region,
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DistributionID: uploadCfg.distribution,
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},
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[]byte(cosignPwd),
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[]byte(privateKey),
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false,
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uploadCfg.cacheWindowSize,
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log)
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defer func() {
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err := clientClose(cmd.Context())
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if err != nil {
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retErr = errors.Join(retErr, fmt.Errorf("failed to invalidate cache: %w", err))
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}
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}()
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if err != nil {
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return fmt.Errorf("creating client: %w", err)
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}
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var attesation variant.Variant
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switch uploadCfg.provider {
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case cloudprovider.AWS:
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attesation = variant.AWSSEVSNP{}
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case cloudprovider.Azure:
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attesation = variant.AzureSEVSNP{}
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default:
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return fmt.Errorf("unsupported cloud provider: %s", uploadCfg.provider)
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}
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return uploadReport(ctx, attesation, client, uploadCfg, file.NewHandler(afero.NewOsFs()), log)
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}
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func uploadReport(ctx context.Context,
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attestation variant.Variant,
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client *attestationconfigapi.Client,
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cfg uploadConfig,
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fs file.Handler,
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log *logger.Logger,
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) error {
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if cfg.kind != snpReport {
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return fmt.Errorf("kind %s not supported", cfg.kind)
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}
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log.Infof("Reading SNP report from file: %s", cfg.path)
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var report verify.Report
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if err := fs.ReadJSON(cfg.path, &report); err != nil {
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return fmt.Errorf("reading snp report: %w", err)
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}
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inputVersion := convertTCBVersionToSNPVersion(report.SNPReport.LaunchTCB)
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log.Infof("Input report: %+v", inputVersion)
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latestAPIVersionAPI, err := attestationconfigapi.NewFetcherWithCustomCDNAndCosignKey(cfg.url, cfg.cosignPublicKey).FetchSEVSNPVersionLatest(ctx, attestation)
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if err != nil {
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if errors.Is(err, attestationconfigapi.ErrNoVersionsFound) {
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log.Infof("No versions found in API, but assuming that we are uploading the first version.")
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} else {
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return fmt.Errorf("fetching latest version: %w", err)
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}
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}
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latestAPIVersion := latestAPIVersionAPI.SEVSNPVersion
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if err := client.UploadSEVSNPVersionLatest(ctx, attestation, inputVersion, latestAPIVersion, cfg.uploadDate, cfg.force); err != nil {
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if errors.Is(err, attestationconfigapi.ErrNoNewerVersion) {
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log.Infof("Input version: %+v is not newer than latest API version: %+v", inputVersion, latestAPIVersion)
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return nil
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}
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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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func convertTCBVersionToSNPVersion(tcb verify.TCBVersion) attestationconfigapi.SEVSNPVersion {
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return attestationconfigapi.SEVSNPVersion{
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Bootloader: tcb.Bootloader,
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TEE: tcb.TEE,
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SNP: tcb.SNP,
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Microcode: tcb.Microcode,
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}
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}
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type uploadConfig struct {
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provider cloudprovider.Provider
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kind objectKind
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path string
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uploadDate time.Time
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cosignPublicKey string
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region string
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bucket string
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distribution string
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url string
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force bool
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cacheWindowSize int
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}
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func newConfig(cmd *cobra.Command, args [3]string) (uploadConfig, error) {
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dateStr, err := cmd.Flags().GetString("upload-date")
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if err != nil {
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return uploadConfig{}, fmt.Errorf("getting upload date: %w", err)
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}
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uploadDate := time.Now()
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if dateStr != "" {
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uploadDate, err = time.Parse(attestationconfigapi.VersionFormat, dateStr)
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if err != nil {
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return uploadConfig{}, fmt.Errorf("parsing date: %w", err)
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}
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}
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region, err := cmd.Flags().GetString("region")
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if err != nil {
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return uploadConfig{}, fmt.Errorf("getting region: %w", err)
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}
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bucket, err := cmd.Flags().GetString("bucket")
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if err != nil {
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return uploadConfig{}, fmt.Errorf("getting bucket: %w", err)
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}
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testing, err := cmd.Flags().GetBool("testing")
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if err != nil {
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return uploadConfig{}, fmt.Errorf("getting testing flag: %w", err)
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}
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apiCfg := getAPIEnvironment(testing)
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force, err := cmd.Flags().GetBool("force")
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if err != nil {
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return uploadConfig{}, fmt.Errorf("getting force: %w", err)
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}
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cacheWindowSize, err := cmd.Flags().GetInt("cache-window-size")
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if err != nil {
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return uploadConfig{}, fmt.Errorf("getting cache window size: %w", err)
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}
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provider := cloudprovider.FromString(args[0])
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kind := kindFromString(args[1])
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path := args[2]
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return uploadConfig{
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provider: provider,
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kind: kind,
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path: path,
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uploadDate: uploadDate,
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cosignPublicKey: apiCfg.cosignPublicKey,
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region: region,
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bucket: bucket,
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url: apiCfg.url,
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distribution: apiCfg.distribution,
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force: force,
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cacheWindowSize: cacheWindowSize,
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}, nil
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}
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