Reference
Rego Policies
Writing Rego-based policies for Sigstore Policy Controller
CISA Secure Software Development Attestation Form (Draft)Ubuntu CompatibilityDifferences between Chainguard Containers and Ubuntu third-party images
Secure Software Development Framework (SSDF) Table, NIST SP 800-218Red Hat UBI CompatibilityDifferences between Chainguard Containers and Red Hat UBI third-party images
Minimum Attestation Referenceschainctl Referencechainctl Reference Documentation