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Kubernetes Supply Chain Security: Sigstore, SLSA, and SBOM

You build secure code. You deploy it to a hardened cluster. But where did the container image come from? Was it tampered with? Does it contain known vulnerabilities? Supply chain attacks target the build and distribution pipeline — the path between source code and running container.

The Supply Chain Security Stack

  • Sigstore (Cosign): Sign container images and verify signatures before deployment. Keyless signing via OIDC.
  • SLSA (Supply-chain Levels for Software Artifacts): Framework for build provenance — proving WHERE and HOW an artifact was built.
  • SBOM (Software Bill of Materials): Complete inventory of components in your container image for vulnerability tracking.

Learn Supply Chain Security — Free

Module 11 of our Cloud Native Security Engineering course covers the complete supply chain security pipeline with hands-on labs.

How to Use This Topic

This page is a focused entry point into the larger course. Use it to understand the vocabulary, the production problem, and the first practical module to open next.

  • Read the overview to map the concept to real engineering work.
  • Follow the linked module for exercises, diagrams, and implementation details.
  • Return to the full curriculum when you need adjacent topics and a complete learning path.

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Continue with Cloud Native Security Engineering: Securing Kubernetes, Workloads, APIs & Zero Trust Systems: 16 modules, 32 hands-on labs, completely free.

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