Registry Scanning and Continuous Monitoring

Container registries require continuous scanning because vulnerability landscape constantly evolves. New CVEs affecting previously secure images emerge daily. Registry scanning tools monitor stored images and alert when new vulnerabilities affect your containers. This continuous monitoring enables proactive remediation before vulnerable images deploy to production.

Private registry integration ensures scanning covers all organizational images, not just public ones. Configure scanners to automatically analyze images on push, providing immediate feedback about security status. Implement admission controllers that prevent pulling vulnerable images into production clusters. Some organizations mirror public images into private registries after security validation, ensuring all deployed containers meet security standards.

Image signing and verification add another security layer beyond vulnerability scanning. Tools like Notary and Sigstore enable cryptographic image signing, ensuring deployed containers haven't been tampered with since scanning. Combine signing with policy engines that only allow deployment of signed images from trusted sources. This approach prevents both accidental deployment of unscanned images and malicious image substitution.