Stream model reserve to Scaleway without local weight staging

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a09cbd-43c1-79f3-809e-1ee97b40b64d

scripts/smoke_stream_model.py

@@ -0,0 +1,50 @@
+"""Small live S3 checks; deletes only the smoke object versions created here."""
+import hashlib
+import io
+import os
+import uuid
+
+from botocore.exceptions import ClientError
+from stream_model import client, stream_object
+
+
+def main():
+    s3 = client('https://s3.nl-ams.scw.cloud', 'nl-ams')
+    bucket = os.environ.get('FI_S3_BUCKET', 'railiance-fi-open-weight-reserve')
+    prefix = f'staging/stream-smoke/{uuid.uuid4()}'
+    data = b'fi-stream-smoke\n' * 450000  # ~6.4 MiB, two parts
+    spec = dict(path='payload', bytes=len(data), source_algorithm='sha256',
+                source_digest=hashlib.sha256(data).hexdigest())
+    for storage_class in ('STANDARD', 'ONEZONE_IA', 'GLACIER'):
+        key = f'{prefix}/{storage_class}'
+        receipt = stream_object(s3, bucket, key, io.BytesIO(data), spec,
+                                storage_class, 5 * 1024 * 1024, {'fi-smoke': 'true'})
+        try:
+            head = s3.head_object(Bucket=bucket, Key=key)
+            assert head.get('StorageClass', 'STANDARD') == storage_class
+            if storage_class != 'GLACIER':
+                response = s3.get_object(Bucket=bucket, Key=key)
+                with response['Body'] as body:
+                    assert hashlib.sha256(body.read()).hexdigest() == spec['source_digest']
+            print(f'PASS {storage_class}: multipart + HEAD' +
+                  (' + full readback SHA256' if storage_class != 'GLACIER' else ' (no restore)'))
+        finally:
+            s3.delete_object(Bucket=bucket, Key=key, VersionId=receipt['version_id'])
+    key = f'{prefix}/bad-md5'
+    upload = s3.create_multipart_upload(Bucket=bucket, Key=key)['UploadId']
+    try:
+        try:
+            result = s3.upload_part(Bucket=bucket, Key=key, UploadId=upload, PartNumber=1,
+                                    Body=b'payload', ContentMD5='AAAAAAAAAAAAAAAAAAAAAA==')
+        except ClientError as exc:
+            assert exc.response['Error']['Code'] == 'BadDigest', exc.response['Error']['Code']
+            print('PASS server rejects corrupted multipart Content-MD5')
+        else:
+            assert result['ETag'].strip('"') == hashlib.md5(b'payload').hexdigest()
+            print('NOTE server ignores Content-MD5; returned part ETag matches actual bytes. Collector checks ETags explicitly.')
+    finally:
+        s3.abort_multipart_upload(Bucket=bucket, Key=key, UploadId=upload)
+
+
+if __name__ == '__main__':
+    main()