Add durable external-effect runtime identity

src/govoplan_core/celery_app.py

@@ -9,6 +9,7 @@ import time
 from celery import Celery
 from celery.signals import (
     heartbeat_sent,
+    task_prerun,
     worker_process_init,
     worker_ready,
     worker_shutdown,
@@ -68,6 +69,7 @@ from govoplan_core.core.registry import PlatformRegistry
 from govoplan_core.core.runtime import configure_runtime
 from govoplan_core.core.runtime_coordination import (
     RuntimeIdentity,
+    bind_process_runtime_identity,
     heartbeat_runtime_node,
     register_runtime_node,
     runtime_identity,
@@ -208,6 +210,7 @@ def _worker_runtime_identity(sender: object | None = None) -> RuntimeIdentity:
             role="worker",
             node_id=hostname,
         )
+    bind_process_runtime_identity(_worker_identity)
     return _worker_identity
 
 
@@ -222,10 +225,19 @@ def _worker_metadata() -> dict[str, object]:
 
 @worker_process_init.connect
 def _reset_worker_process_database(**_kwargs) -> None:
+    global _worker_identity
+
     # SQLAlchemy pools must not be shared across prefork child processes.
+    _worker_identity = None
+    bind_process_runtime_identity(None)
     configure_database(settings.database_url, dispose_previous=True)
 
 
+@task_prerun.connect
+def _bind_worker_effect_identity(task=None, **_kwargs) -> None:
+    _worker_runtime_identity(task)
+
+
 @worker_ready.connect
 def _register_worker_runtime(sender=None, **_kwargs) -> None:
     global _worker_consumer