76ab15b0df
Add a new backend store that enables iSCSI targets backed by S3-compatible object storage (AWS S3, MinIO, Ceph RGW, etc.). The implementation uses a chunked storage strategy where the virtual block device is divided into fixed-size chunks (default 4 MiB), each stored as an independent S3 object. This enables efficient random read/write access on top of object storage. Key features: - Chunked storage with configurable chunk size - Sparse device support (unwritten chunks treated as zeros) - Concurrent multi-chunk I/O via errgroup - Per-chunk locking for safe read-modify-write - AWS SDK v2 with default credential chain - In-process gofakes3 test server (no Docker needed) - 12 unit tests + 2 integration tests Also updates CI workflow to run S3 backend tests and updates README with S3 backend documentation. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
32 lines
706 B
JSON
32 lines
706 B
JSON
{
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"storages": [
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{
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"deviceID": 2000,
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"path": "s3:gotgt-bucket/iscsi/disk0",
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"online": true,
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"backendType": "s3",
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"blockShift": 9,
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"deviceSize": 1073741824,
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"s3ChunkSize": 4194304,
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"s3Endpoint": "http://localhost:9000",
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"s3ForcePathStyle": true
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}
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],
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"iscsiportals": [
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{
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"id": 0,
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"portal": "127.0.0.1:3260"
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}
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],
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"iscsitargets": {
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"iqn.2016-09.com.gotgt.gostor:s3-target": {
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"tpgts": {
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"1": [0]
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},
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"luns": {
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"1": 2000
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}
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}
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}
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}
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