cloudflare-r2-bucket-management-and-access

Environment-aware bucket setup provisions isolated R2 buckets for dev, staging, and production, preventing accidental data mixing across environments. Configure environment-specific naming conventions and access policies to maintain per-environment security boundaries.

R2 supports three access patterns: private buckets controlled through Workers, public read-only buckets for CDN delivery, and signed URLs for temporary, time-limited downloads. Choose based on your asset type—use signed URLs for sensitive files, public buckets for static assets, and Worker-controlled access for sensitive operations.

Yes, Hono Workers integrate with R2 to enforce access control and handle read, write, delete, and list operations. Worker routes intercept requests and apply security rules before granting bucket access, enabling fine-grained permission management.

Lifecycle policies automate retention, expiration, and overwrite prevention on R2 objects. They enhance audit safety, enforce data retention compliance, and reduce storage costs by automatically managing object lifecycle based on age or metadata rules.

Signed URL generation creates temporary, cryptographically verified download links for R2 objects with configurable expiration windows. Distribute signed URLs instead of permanent access credentials to provide secure, time-limited asset sharing without exposing bucket permissions.

Yes, public assets served via CDN require different security rules than private assets. Public buckets allow open read access; private buckets require Worker-controlled access or signed URLs. Choose the strategy based on whether assets are customer-facing or internal.