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rustfs/crates/madmin/fixtures/on_demand_migration/set_request.json
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Zhengchao An a5bde8b0af feat(admin): add on-demand migration bucket admin API (#7076)
* feat(ecstore): add on-demand migration bucket config model

Introduce OnDemandMigrationConfig (deny_unknown_fields, version 1) with typed validation, credential redaction, a secret-free Debug impl, and the OnceLock publish hook the runtime registers into. Exported through the api facade.

* feat(ecstore): persist on-demand migration config in bucket metadata

Store the config as a RustFS extension entry (on-demand-migration.json) with its update time in .metadata.bin, add the typed BucketMetadataSys accessor, and publish the config through the hook on every cache-install path alongside the durability sync.

* refactor(ecstore): extract shared remote S3 client builder

Move the aws_sdk_s3 client construction out of bucket_target_sys into
bucket/remote_s3_client.rs: endpoint assembly, credential provider,
path-style selection, custom CA / skip-TLS transports and the outbound
SSRF gate now build from a neutral RemoteS3EndpointSpec so replication
targets and the upcoming on-demand migration source client share one
policy. Replication builds its client through From<&BucketTarget>; the
gate keeps its relaxed semantics (private allowed, loopback only behind
RUSTFS_REPLICATION_ALLOW_LOOPBACK_TARGET) verbatim. The builder also
gains optional connect/read timeouts and a User-Agent suffix
interceptor, both unset for replication.

Refs rustfs/backlog#2149

* feat(ecstore): add on-demand migration SourceClient

Add bucket/on_demand_migration/source_client.rs on top of the shared
remote S3 builder: HEAD, ranged streaming GET, ListObjectsV2 with
source-prefix mapping, GetObjectTagging and an admin probe. Every request
carries the x-rustfs-/x-minio-source-proxy-request anti-loop markers and
a RustFS-OnDemandMigration/<version> User-Agent suffix; SSE-C source
objects are rejected as unsupported. SourceError classifies SDK failures
(not found, access denied, throttled, timeout, connect, server error)
with retryability and a stable metrics label. Debug output redacts
credentials.

Refs rustfs/backlog#2149

* docs(operations): point outbound policy at shared remote S3 client builder

* chore: integrate ODM-01 and ODM-02 as B1 base (fix facade merge)

* feat(admin): add on-demand migration bucket admin API

Add the management plane for On-Demand Migration (ODM-07,
rustfs/backlog#2154): PUT/GET/DELETE /v3/on-demand-migration/{bucket},
PUT ?dry-run=true, and a GET .../status skeleton.

- PUT authorizes SetBucketOnDemandMigration, checks the bucket, the
  RUSTFS_ON_DEMAND_MIGRATION_ENABLED switch and the license, validates the
  ODM-01 config against local endpoints and replication targets, probes the
  source with SourceClient::probe(), then persists through the incarnation
  gate and asks peers to reload. Responses carry the redacted config and a
  probe summary; probe failures name only the error class.
- GET answers 404 NoSuchConfiguration when unset; DELETE is idempotent (204).
- New AdminAction variants admin:SetBucketOnDemandMigration and
  admin:GetBucketOnDemandMigration, route policy matrix rows, registration
  and MinIO alias coverage, and a doc row for the extra handler gates.
- rustfs-madmin gains on_demand_migration wire types and client methods;
  golden fixtures under crates/madmin/fixtures/on_demand_migration/ are
  asserted byte-for-byte by both the handler and the client tests.

Anonymous sources still map to a 400 naming source.credentials until the
runtime slice adds the credential-less path.

* refactor(admin): route on-demand migration handler errors through the s3 facade
2026-09-03 01:58:49 +08:00

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{"version":1,"enabled":true,"source":{"provider":"minio","endpoint":"https://source.example.com:9000","region":"us-east-1","bucket":"legacy-photos","path_style":"auto","credentials":{"access_key":"AKIASOURCE","secret_key":"sourceSecretKey123","session_token":null},"tls":{"skip_verify":false,"ca_cert_pem":null}},"filter":{"prefix":null,"source_prefix":"photos/"},"policy":{"head":"proxy","range_get":"serve_and_backfill","source_error":"propagate","respect_local_delete_marker":true,"preserve_etag":true,"copy_tags":false,"emit_events":true,"negative_cache_ttl_secs":30,"inline_max_bytes":16777216,"multipart_part_size_bytes":67108864,"max_concurrent_pulls":8,"pull_queue_capacity":1024,"source_timeout":{"connect_ms":5000,"first_byte_ms":15000,"idle_ms":30000},"bandwidth_limit_bytes_per_sec":null}}