Alibaba Cloud Container Registry vs Zot Registry

Alibaba Cloud Container Registry has no write-up on Specifiction yet; its figures are above.

Zot Registry is an OCI-native container image registry that follows OCI Distribution Specification APIs and uses OCI Image Layout for storage. The project provides full and minimal single-binary builds and says Zot does not need root privileges. The full container image includes extensions for search, vulnerability scanning, synchronization, scrubbing, metrics, a user interface, management, and image trust; search, UI, and management are enabled by default. Storage can use local filesystems or AWS S3, with layer deduplication, garbage collection, background scrubbing, and multiple storage paths and backends. Authentication options include TLS and mTLS, htpasswd, LDAP, bearer tokens, and OpenID/OAuth2. Identity-based policies can control repository or path actions by user or group. Zot also supports cosign and notation signatures, Helm charts, skopeo, cri-o, Prometheus metrics, logging, profiling, and benchmarking with zb. The project describes it as suitable for on-premises deployments, including alongside Kubernetes. Zot is free under Apache License 2.0 and identified by its project homepage as a CNCF Sandbox Project. Native Windows binaries for amd64 and arm64 are distributed. Release notes state that ORAS artifact support was removed starting with the listed version.