grafeas / kritis

Deploy-time Policy Enforcer for Kubernetes applications

Kritis

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Kritis (“judge” in Greek), is an open-source solution for securing your software supply chain for Kubernetes applications. Kritis enforces deploy-time security policies using the Google Cloud Container Analysis API, and in a subsequent release, Grafeas.

Here is an example Kritis policy, to prevent the deployment of Pod with a critical vulnerability unless it has been allowlisted:

imageAllowlist:
- gcr.io/my-project/allowlist-image@sha256:<DIGEST>
packageVulnerabilityPolicy:
  maximumSeverity: HIGH
  allowlistCVEs:
    - providers/goog-vulnz/notes/CVE-2017-1000082
    - providers/goog-vulnz/notes/CVE-2017-1000081

In addition to the enforcement this project also contains signers that can be used to create Grafeas Attestation Occurrences to be used in other enforcement systems like Binary Authorization. (TODO#571: add doc and fix link) For details see upcoming doc Kritis Signer.

Getting Started

• Watch the talk on Software Supply Chain Management with Grafeas and Kritis.
• Learn the concepts in the Kritis Whitepaper.
• Try out Kritis with standalone Grafeas by following Standalone Mode Tutorial
• Try the Tutorial to learn how to block vulnerabilities using GCP Container Analysis.
• Read the Resource Reference to configure and interact with Kritis resources.

Support

If you have questions, reach out to us on kritis-users. For questions about contributing, please see the section below.

Contributing

See CONTRIBUTING for details on how you can contribute.

See DEVELOPMENT for details on the development and testing workflow.

License

Kritis is under the Apache 2.0 license. See the LICENSE file for details.