constellation/hack/image-fetch/main.go
2024-09-10 11:55:32 +02:00

70 lines
2.2 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
/*
imagefetch retrieves a CSP image reference from a Constellation config in the CWD.
This is especially useful when using self-managed infrastructure, where the image
reference needs to be chosen by the user, which would usually happen manually.
*/
package main
import (
"context"
"errors"
"fmt"
"os"
"path/filepath"
"regexp"
"github.com/edgelesssys/constellation/v2/api/attestationconfigapi"
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/constants"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/edgelesssys/constellation/v2/internal/imagefetcher"
"github.com/spf13/afero"
)
var (
caseInsensitiveCommunityGalleriesRegexp = regexp.MustCompile(`(?i)\/communitygalleries\/`)
caseInsensitiveImagesRegExp = regexp.MustCompile(`(?i)\/images\/`)
caseInsensitiveVersionsRegExp = regexp.MustCompile(`(?i)\/versions\/`)
)
func main() {
cwd := os.Getenv("BUILD_WORKING_DIRECTORY") // set by Bazel, for bazel run compatibility
ctx := context.Background()
fh := file.NewHandler(afero.NewOsFs())
attFetcher := attestationconfigapi.NewFetcher()
conf, err := config.New(fh, filepath.Join(cwd, constants.ConfigFilename), attFetcher, true)
var configValidationErr *config.ValidationError
if errors.As(err, &configValidationErr) {
fmt.Println(configValidationErr.LongMessage())
}
if err != nil {
panic(err)
}
imgFetcher := imagefetcher.New()
provider := conf.GetProvider()
attestationVariant := conf.GetAttestationConfig().GetVariant()
region := conf.GetRegion()
image, err := imgFetcher.FetchReference(ctx, provider, attestationVariant,
conf.Image, region, conf.UseMarketplaceImage())
if err != nil {
panic(err)
}
if provider == cloudprovider.Azure {
image = caseInsensitiveCommunityGalleriesRegexp.ReplaceAllString(image, "/communityGalleries/")
image = caseInsensitiveImagesRegExp.ReplaceAllString(image, "/images/")
image = caseInsensitiveVersionsRegExp.ReplaceAllString(image, "/versions/")
}
fmt.Println(image)
}