feat(oss): add native Alibaba Cloud OSS storage backend #862
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Add native support for Alibaba Cloud Object Storage Service (OSS) as a replication backend. This addresses issue #861 where Litestream 0.5+ uses AWS SDK Go v2 with chunked encoding, which OSS doesn't support via S3-compatible mode. Features: - Native OSS SDK integration (alibabacloud-oss-go-sdk-v2) - Multipart upload support for large files (>5GB) with configurable part-size and concurrency settings - Timestamp preservation via OSS metadata for point-in-time recovery - Support for both URL and explicit configuration - Integration test support with LITESTREAM_OSS_* environment variables Configuration examples: replicas: - type: oss bucket: my-bucket region: cn-hangzhou replicas: - url: oss://my-bucket.oss-cn-hangzhou.aliyuncs.com/backups Closes #861 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
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Summary
alibabacloud-oss-go-sdk-v2SDK instead of S3-compatible modeBackground
Litestream 0.5+ uses AWS SDK Go v2, which enables chunked encoding for uploads ≥5MB. Alibaba Cloud OSS doesn't support chunked encoding via its S3-compatible mode, breaking OSS users who upgraded from 0.3.x.
Changes
New Files
oss/replica_client.go- Main OSS ReplicaClient implementationoss/replica_client_test.go- Unit testsModified Files
cmd/litestream/main.go- Add OSS config parsing and registrationcmd/litestream/replicate.go- Add OSS logginginternal/testingutil/testingutil.go- Add OSS integration test supportgo.mod,go.sum- Add Alibaba SDK dependencyCLAUDE.md,AGENTS.md,docs/ARCHITECTURE.md- Documentation updatesConfiguration
Environment Variables
LITESTREAM_OSS_ACCESS_KEY_IDLITESTREAM_OSS_ACCESS_KEY_SECRETLITESTREAM_OSS_REGIONLITESTREAM_OSS_BUCKETTest plan
go test -v ./oss/...)go build ./...)go vet,staticcheck)Closes #861
🤖 Generated with Claude Code