Chainguard Registry vs KakaoCloud Container Registry

Chainguard Registry provides Chainguard Containers: minimal container images rebuilt from source daily. Its directory lists 3,115 projects and 735,898 images. Chainguard says images are continuously built in SLSA L3 hardened infrastructure with CVE patching, and lists Sigstore-signed artifacts with build-time SBOMs and digital attestations. The free offer allows up to five images per organization; the FAQ describes a freely available set of about 50 images, limited to:latest tags and without a CVE remediation SLA. Catalog plans include upstream-supported major and minor tags, contractual remediation timelines of seven days for critical vulnerabilities and 14 days for other listed severity levels, and requests for new images. Catalog features also include automated Custom Assembly tooling, a private APK repository with more than 10,000 packages, and STIG-hardened and FIPS-validated images. Images can be pulled from Chainguard or mirrored to listed artifact managers. Chainguard lists compatibility with multiple scanners. Free Images costs nothing; Catalog is priced on request. The product runs on Linux, self-hosted, and web environments.

KakaoCloud Container Registry is a managed cloud repository for storing and managing Docker container images. It supports standard Docker images and Docker CLI authentication, push, and pull workflows, and integrates with KakaoCloud Kubernetes Engine for managing and deploying images. IAM roles separate repository members, who can push and pull, from viewers, who can pull only. Trivy scans for CVE-based vulnerabilities, either daily or automatically after images are pushed. Users can review image and tag history and recover earlier image versions or deleted tags. Public repositories let KakaoCloud-authenticated users who know the URI pull without separate repository authentication. Default quotas are 1,000 repositories per project, 10,000 images per repository, and 1,000 tags per image; increases can be requested. Storage up to 1 GiB is free; usage beyond that costs 0.14 won per GiB/hour. Outbound traffic includes 30 GiB free; higher usage is billed by tier. The listed plan prices are free for storage and outbound traffic, with VAT excluded.