Cosmoner Container Registry vs Volcengine Container Registry

Cosmoner Container Registry is a managed private registry backed by Amazon ECR for storing container images used by apps. Developers can push and pull images from a laptop or CI system with Docker and a Cosmoner API key. Images in a project registry appear in the Apps image deployment flow, where deployments authenticate without a pull secret. Scanning on push is enabled by default and checks images against known vulnerabilities. Images use AES256 encryption by default, with a customer KMS key available for repositories created afterward. Retention settings can keep a selected number of recent images and expire untagged images after a chosen number of days. Repositories are private by default; public repositories require a monthly egress cap and revert to private when it is reached. The product lists nine regions across North America, Europe, and Asia Pacific, and a registry’s region cannot be changed after creation. Uploads are not charged; egress, storage, and a registry fee are billed separately. The registry fee is $1 a month, prorated from creation; storage is $0.25 a month per GB, and egress is $0.15 a month per GB after the first 10 GB per organization per billing period.

Volcengine Container Registry stores OCI-compliant artifacts, including container images and Helm charts, and provides tools to manage their lifecycle. Users can push, pull, and clean up images with Docker, Nerdctl, or Helm. Image scans can report vulnerabilities, malicious or unexpected files, and possible remediation. The service also supports IAM policies for user authorization and resource-level permissions. Standard Edition instances can use server-side image encryption when enabled at creation. Standard Edition can replicate images and Helm charts across instances, regions, and repositories, with up to five enabled rules per account. Proxy caches can draw from Docker Hub, GHCR, and self-hosted Docker registries. The registry integrates with Volcengine Kubernetes Engine for internal-network image pulls, and Standard Edition supports P2P acceleration for large cluster pulls. Micro Edition provides five namespaces and 500 GiB of storage; Standard Edition provides 50 namespaces and unlimited namespace storage by default. A free Trial Edition costs nothing, but is quota-limited and cannot expand its quota. Subscription prices listed for Chinese mainland are 50 CNY a month for Micro Edition and 1,349 CNY a month for Standard Edition, per instance.