Advanced Disciplines
Supply Chain Integrity and the Lineage of Artifacts
Your cluster runs what your pipeline produces. If lineage is unclear, you cannot prove what you deployed.
Text
Authored as doctrine; evaluated as operations.
Doctrine
Supply chain integrity is the ability to trace a running workload back to its source, build process, and review history.
Kubblai doctrine: lineage is governance. Mutable artifacts are institutional negligence.
Immutable references
Use digests for production where feasible. If you must use tags, enforce immutability policies at the registry level.
A tag that can be overwritten is a security and incident response hazard.
Signing and provenance (tradeoffs)
Signing and provenance increase trust, but they also introduce operational requirements: key management, rotation, policy enforcement, and tooling compatibility.
Implement them as a program, not as a checkbox.
Operational reality
When incidents happen, you need to know exactly what code is running. ‘Probably’ is not good enough at principal scale.
Lineage is the difference between diagnosis and speculation.
Canonical Link
Canonical URL: /library/supply-chain-integrity-and-the-lineage-of-artifacts
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