fix: Collect provenance digests regardless of artifact layout

[dervoeti]

Description

download-artifact only nests each artifact into its own subdirectory when more than one matches the pattern. Single-version products upload a single provenance-digests-* artifact, which gets flattened directly into the download path, so the hardcoded artifacts/*/digests.json glob found nothing and jq failed. Use find so both the flat and per-artifact subdirectory layouts work, and guard against zero digest files.

Definition of Done Checklist

Note

Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant.

Please make sure all these things are done and tick the boxes

• Changes are OpenShift compatible
• All added packages (via microdnf or otherwise) have a comment on why they are added
• Things not downloaded from Red Hat repositories should be mirrored in the Stackable repository and downloaded from there
• All packages should have (if available) signatures/hashes verified
• Add an entry to the CHANGELOG.md file
• Integration tests ran successfully

TIP: Running integration tests with a new product image

The image can be built and uploaded to the kind cluster with the following commands:

boil build <IMAGE> --image-version <RELEASE_VERSION> --strip-architecture --load
kind load docker-image <MANIFEST_URI> --name=<name-of-your-test-cluster>

See the output of boil to retrieve the image manifest URI for <MANIFEST_URI>.

[NickLarsenNZ]

LGTM

[Techassi]

LGTM in general, but just a question out of curiosity: Do we expect more than one file in some situations. If so, can you elaborate on these?

[dervoeti]

but just a question out of curiosity: Do we expect more than one file in some situations. If so, can you elaborate on these?

Yes, we have one digests.json per product version, so multiple files is even the more common case (and that one worked before, single version did not). The build matrix fans out over versions, each leg uploads its own provenance-digests-<version> artifact containing one digests.json.

• Single-version products (krb5): 1 file.
• Multi-version products: N files. e.g. kafka publishes 4 versions (3.9.1, 3.9.2, 4.1.1, 4.2.1) -> 4 digests.json