refactor: centralize startup runtime services (#3467)

docs/architecture/startup-timeline.md

@@ -35,15 +35,15 @@ new startup semantics.
 | `RUN-010` | `rustfs/src/main.rs:356` | Start S3 HTTP listener and optional console listener before storage is ready. | Starts HTTP servers with readiness gates; console listener starts only when enabled and configured. | Fatal if a configured listener cannot start. | Requests remain gated until full readiness except probe/admin/console/rpc/tonic/table-catalog exempt paths |
 | `RUN-011` | `rustfs/src/startup_storage.rs` | Create cancellation token and initialize `ECStore`. | Creates the runtime cancellation token and storage engine. | Fatal if `ECStore::new` fails. | None |
 | `RUN-012` | `rustfs/src/startup_storage.rs` | Initialize ECStore config and global config system. | Initializes ECStore config, attempts server-config migration, then retries global config init up to 15 times. | Migration attempt is non-fatal in this path; global config init becomes fatal after retries. | Marks the `GlobalReadiness` `StorageReady` stage after global config init succeeds; later runtime readiness still rechecks storage, IAM, and lock quorum before `FullReady` |
-| `RUN-013` | `rustfs/src/startup_storage.rs` and `rustfs/src/main.rs` | Start replication and KMS systems. | Starts background replication pool, then initializes KMS from main startup. | Replication init is non-fatal in this path; KMS init is fatal on error. | `StorageReady` stage is already marked; dynamic runtime storage readiness is still checked before `FullReady` |
-| `RUN-014` | `rustfs/src/main.rs:402` | Initialize optional protocol servers. | Starts FTP/FTPS/WebDAV/SFTP when feature-enabled and configured, collecting shutdown handles. | Feature-enabled protocol init is fatal on error; disabled protocols are non-fatal. | None |
-| `RUN-015` | `rustfs/src/main.rs:482` | Initialize buffer profiling, event notifier, audit, and deadlock detector. | Starts buffer profile system, event notifier, audit system, and optional deadlock detector. | Audit startup failure is logged and non-fatal; the others are non-fatal in this path. | None |
-| `RUN-016` | `rustfs/src/main.rs:503` | List buckets and run bucket/replication/IAM metadata migrations. | Reads bucket names, migrates bucket metadata, initializes replication resync, migrates IAM config, and initializes bucket metadata system. | Bucket list and replication resync are fatal on error; metadata migration calls are non-fatal in this path. | Storage remains ready; IAM not yet ready |
-| `RUN-017` | `rustfs/src/main.rs:523` | Bootstrap IAM inline or defer recovery. | Initializes IAM when possible; otherwise starts the deferred IAM recovery path through `startup_iam`. | Fatal only when `bootstrap_or_defer_iam_init` returns an unrecoverable error. | Inline success marks `IamReady`; deferred mode publishes `IamReady` later from the recovery task |
-| `RUN-018` | `rustfs/src/main.rs:535` | Initialize Keystone and OIDC auth integrations. | Loads Keystone env config and initializes OIDC providers. | Keystone config parse is fatal; Keystone runtime init failure is non-fatal; OIDC init failure is non-fatal. | None |
-| `RUN-019` | `rustfs/src/main.rs:552` | Add bucket notification config and initialize notification system. | Adds bucket notification configuration and publishes the global notification system. | Notification config add is non-fatal in this path; global notification init is fatal on error. | None |
-| `RUN-020` | `rustfs/src/main.rs:560` | Create AHM cancellation token and initialize heal manager when scanner or heal is enabled. | Creates AHM cancellation token and starts heal manager for heal/scanner workflows. | Heal manager init is fatal when enabled. | None |
-| `RUN-021` | `rustfs/src/main.rs:584` | Print server info, init update check, allocator reclaim, metrics, memory observability, and auto-tuner. | Starts informational/update/memory/metrics background tasks when enabled. | Non-fatal in this path. | None |
+| `RUN-013` | `rustfs/src/startup_storage.rs` and `rustfs/src/startup_services.rs` | Start replication and KMS systems. | Starts background replication pool, then initializes KMS from startup services. | Replication init is non-fatal in this path; KMS init is fatal on error. | `StorageReady` stage is already marked; dynamic runtime storage readiness is still checked before `FullReady` |
+| `RUN-014` | `rustfs/src/startup_services.rs` | Initialize optional protocol servers. | Starts FTP/FTPS/WebDAV/SFTP when feature-enabled and configured, collecting shutdown handles. | Feature-enabled protocol init is fatal on error; disabled protocols are non-fatal. | None |
+| `RUN-015` | `rustfs/src/startup_services.rs` | Initialize buffer profiling, event notifier, audit, and deadlock detector. | Starts buffer profile system, event notifier, audit system, and optional deadlock detector. | Audit startup failure is logged and non-fatal; the others are non-fatal in this path. | None |
+| `RUN-016` | `rustfs/src/startup_services.rs` | List buckets and run bucket/replication/IAM metadata migrations. | Reads bucket names, migrates bucket metadata, initializes replication resync, migrates IAM config, and initializes bucket metadata system. | Bucket list and replication resync are fatal on error; metadata migration calls are non-fatal in this path. | Storage remains ready; IAM not yet ready |
+| `RUN-017` | `rustfs/src/startup_services.rs` and `rustfs/src/startup_iam.rs` | Bootstrap IAM inline or defer recovery. | Initializes IAM when possible; otherwise starts the deferred IAM recovery path through `startup_iam`. | Fatal only when `bootstrap_or_defer_iam_init` returns an unrecoverable error. | Inline success marks `IamReady`; deferred mode publishes `IamReady` later from the recovery task |
+| `RUN-018` | `rustfs/src/startup_services.rs` | Initialize Keystone and OIDC auth integrations. | Loads Keystone env config and initializes OIDC providers. | Keystone config parse is fatal; Keystone runtime init failure is non-fatal; OIDC init failure is non-fatal. | None |
+| `RUN-019` | `rustfs/src/startup_services.rs` | Add bucket notification config and initialize notification system. | Adds bucket notification configuration and publishes the global notification system. | Notification config add is non-fatal in this path; global notification init is fatal on error. | None |
+| `RUN-020` | `rustfs/src/startup_services.rs` | Create AHM cancellation token and initialize heal manager when scanner or heal is enabled. | Creates AHM cancellation token and starts heal manager for heal/scanner workflows. | Heal manager init is fatal when enabled. | None |
+| `RUN-021` | `rustfs/src/startup_services.rs` | Print server info, init update check, allocator reclaim, metrics, memory observability, and auto-tuner. | Starts informational/update/memory/metrics background tasks when enabled. | Non-fatal in this path. | None |
 | `RUN-022` | `rustfs/src/main.rs:599` | Log successful startup and publish full readiness for inline IAM. | Logs version/address, checks runtime readiness, marks `FullReady`, and sets service state to `Ready` when IAM was ready inline. | Fatal if runtime readiness is not reached within the startup wait. | Marks `FullReady` only for inline IAM here |
 | `RUN-023` | `rustfs/src/main.rs:609` | Publish global init time and start data scanner when enabled. | Sets global init time and starts scanner after the successful-startup log. | Scanner start is non-fatal in this path. | Full readiness may already be published or may await deferred IAM recovery |
 | `RUN-024` | `rustfs/src/main.rs:616` | Wait for shutdown signal. | Blocks the main task until a shutdown signal is received. | Non-fatal. | Runtime remains in its current readiness state |