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Shifting security left: scanning, policy, supply chain and secure delivery. 6 articles.
Turn the SBOM from part 2 into a Cosign attestation bound to the image digest, verify it and read the predicate back, list what hangs off an image with cosign tree, and see what SLSA build provenance adds.
Run Syft from its container against a small Node.js image, read the CycloneDX output package by package, see where each one came from, learn what an SBOM does not prove, and store it next to the artifact.
Grype against the SBOM from part 2: 183 matches read by severity, ecosystem and fix state; two Dockerfile changes that take it to 3; exit-code behaviour for CI; and how to triage what remains.
Cosign with a key pair against a local registry: why the digest is the identity; signing and verifying; a moved tag failing verification while the digest passes; keyless signing as configuration; where the check goes.
The delivery chain from source through dependencies, build, artifact, image, registry and deployment; where each link can be compromised; and the control for each, from lockfiles and SBOMs to signing by digest.
Stop credentials from reaching Git: run Gitleaks in pre-commit hooks and CI, tune rules and allowlists, handle findings without leaking them further, and decide when history rewriting is worth it.