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Create SBOMs for images while creating packages
Issue #22 Uses in-toto/witness#167
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| package sbom | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/defenseunicorns/zarf/src/internal/images" | ||
| "github.com/defenseunicorns/zarf/src/internal/message" | ||
| "github.com/google/go-containerregistry/pkg/name" | ||
| v1 "github.com/google/go-containerregistry/pkg/v1" | ||
| "github.com/testifysec/witness/pkg/attestation" | ||
| "github.com/testifysec/witness/pkg/attestation/syft" | ||
| ) | ||
|
|
||
| func CatalogImages(tagToImage map[name.Tag]v1.Image, sbomDir string) { | ||
| imageCount := len(tagToImage) | ||
| spinner := message.NewProgressSpinner("Creating SBOMs for %d images.", imageCount) | ||
| actx, err := attestation.NewContext([]attestation.Attestor{}) | ||
| if err != nil { | ||
| spinner.Fatalf(err, "Unable to make attestation context") | ||
| } | ||
|
|
||
| cachePath := images.CachePath() | ||
| currImage := 1 | ||
| for tag, img := range tagToImage { | ||
| spinner.Updatef("Creating image SBOMs (%d of %d): %s", currImage, imageCount, tag) | ||
| sbomAttestor := syft.New(syft.WithImageSource(img, cachePath, tag.String())) | ||
| if err := sbomAttestor.Attest(actx); err != nil { | ||
| spinner.Fatalf(err, "Unable to build sbom for image %s", tag.String()) | ||
| } | ||
|
|
||
| sbomFile, err := os.Create(filepath.Join(sbomDir, fmt.Sprintf("%s.json", sbomAttestor.SBOM.Source.ImageMetadata.ID))) | ||
| if err != nil { | ||
| spinner.Fatalf(err, "Unable to create SBOM file for image %s", tag.String()) | ||
| } | ||
|
|
||
| defer sbomFile.Close() | ||
| enc := json.NewEncoder(sbomFile) | ||
| if err := enc.Encode(sbomAttestor); err != nil { | ||
| spinner.Fatalf(err, "Unable to write SBOM file for image %s", tag.String()) | ||
| } | ||
|
|
||
| currImage++ | ||
| } | ||
|
|
||
| spinner.Success() | ||
| } |