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The script is responsible for expanding a image sbom by adding a reference pointing to the image into a SBOM content. The script recognize an input format and adds necessary data into the list of components or packages. The script also sets a name of the SBOM based on a pullspec. JIRA: ISV-5411, ISV-5320 Signed-off-by: Ales Raszka <[email protected]>
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sbom-utility-scripts/scripts/add-image-reference-script/README.md
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| # Add image reference script | ||
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| The script aims to enrich the SBOM file with additional information about the output image used in the build process. | ||
| Based on a input SBOM type, the script updates certain fields with the image reference information. This is needed | ||
| to provide a complete SBOM file that can be used for further analysis. | ||
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| ## Usage | ||
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| ```bash | ||
| python add_image_reference.py \ | ||
| --input-file ./input-sbom.json \ | ||
| --output-file ./updated-sbom.json \ | ||
| --image-url quay.io/foo/bar/ubi8:1.1 \ | ||
| --image-digest sha256:011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc | ||
| ``` | ||
| The script stores the updated SBOM in the output path provided. | ||
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| ## List of updates | ||
| ### SPDX | ||
| The script updates the following fields in the SPDX SBOM:SHA256 | ||
| - `packages` - the script adds a new package with the image reference information | ||
| - `relationships` - the script adds a new relationship between the package and the image reference | ||
| - `name` - the script adds the image reference as a name | ||
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| The logic of adding new packages and updating replationships is visualized in the following diagram: | ||
| ``` | ||
| example SPDX SBOM: | ||
| ROOT | ||
| / \ | ||
| / \ | ||
| DESCRIBES DESCRIBES | ||
| / \ | ||
| / \ | ||
| <pip main package> <npm main package> | ||
| | | | ||
| | | | ||
| CONTAINS CONTAINS | ||
| | | | ||
| | | | ||
| <pip deps> <npm deps> | ||
| SBOM after enrichment: | ||
| ROOT | ||
| | | ||
| | | ||
| DESCRIBES | ||
| | | ||
| | | ||
| <container> | ||
| / \ | ||
| / \ | ||
| CONTAINS CONTAINS | ||
| / \ | ||
| / \ | ||
| <pip main package> <npm main package> | ||
| | | | ||
| | | | ||
| CONTAINS CONTAINS | ||
| | | | ||
| | | | ||
| <pip deps> <npm deps> | ||
| ``` | ||
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| #### Example | ||
| ```json | ||
| { | ||
| "name": "quay.io/foo/bar/ubi8@sha256:011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc", | ||
| "packages": [ | ||
| { | ||
| "SPDXID": "SPDXRef-image", | ||
| "name": "ubi8", | ||
| "versionInfo": "1.1", | ||
| "downloadLocation": "NOASSERTION", | ||
| "licenseConcluded": "NOASSERTION", | ||
| "supplier": "NOASSERTION", | ||
| "externalRefs": [ | ||
| { | ||
| "referenceLocator": "pkg:oci/ubi8@sha256:011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc?repository_url=quay.io/foo/bar/ubi8", | ||
| "referenceType": "purl", | ||
| "referenceCategory": "PACKAGE-MANAGER" | ||
| } | ||
| ], | ||
| "checksums": [ | ||
| { | ||
| "algorithm": "SHA256", | ||
| "checksumValue": "011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc" | ||
| } | ||
| ] | ||
| }, | ||
| ], | ||
| "relationships": [ | ||
| { | ||
| "spdxElementId": "SPDXRef-DOCUMENT", | ||
| "relationshipType": "DESCRIBES", | ||
| "relatedSpdxElement": "SPDXRef-image" | ||
| }, | ||
| ] | ||
| } | ||
|
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| ``` | ||
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| ### CycloneDX | ||
| - `components` - the script adds a new component with the image reference information | ||
| - `metadata.component` - the script adds the image reference as a metadata.component | ||
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| #### Example | ||
| ```json | ||
| { | ||
| "metadata": { | ||
| "component": { | ||
| "type": "container", | ||
| "name": "ubi8", | ||
| "purl": "pkg:oci/ubi8@sha256:011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc?repository_url=quay.io/foo/bar/ubi8", | ||
| "version": "1.1", | ||
| "publisher": "Red Hat, Inc.", | ||
| "hashes": [ | ||
| { | ||
| "alg": "SHA-256", | ||
| "content": "011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc" | ||
| } | ||
| ] | ||
| }, | ||
| }, | ||
| "components": [ | ||
| { | ||
| "type": "container", | ||
| "name": "ubi8", | ||
| "purl": "pkg:oci/ubi8@sha256:011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc?repository_url=quay.io/foo/bar/ubi8", | ||
| "version": "1.1", | ||
| "publisher": "Red Hat, Inc.", | ||
| "hashes": [ | ||
| { | ||
| "alg": "SHA-256", | ||
| "content": "011ff0cd8f34588d3eca86da97619f7baf99c8cc12e24cc3a7f337873c8d36cc" | ||
| } | ||
| ] | ||
| }, | ||
| ] | ||
| } | ||
| ``` |
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