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Last updated: April 29, 2026
Binary Authorization = admission controller for GKE/Cloud Run. Only deploy images that pass policy.
Binary Authorization = admission controller for GKE/Cloud Run. Only deploy images that pass policy.
How it works
- Build pipeline produces image + attestation (using Cloud KMS-signed key)
- Binary Auth policy specifies required attestations
- Deploy attempt: image checked against policy
- Match → allow; no match → deny
Common policies
- “Image must be from this Artifact Registry”
- “Image must have vulnerability scan attestation”
- “Image must be signed by build pipeline”
- “Image must have SLSA L2+ provenance”
Integration
Cloud Build, Container Analysis, Artifact Registry. Whole supply chain in GCP.
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