feat(host-agent): start local console by default

apps/device-host-agent/host_agent/app.py

@@ -116,6 +116,11 @@ class HostAgentApplication:
         return await claim
 
 
+class _EmbeddedConsoleServer(uvicorn.Server):
+    def install_signal_handlers(self) -> None:
+        """Host Agent owns process-level signal handling."""
+
+
 def create_application(
     *,
     config: HostAgentConfig | None = None,
@@ -148,61 +153,49 @@ def create_application(
             bootstrap_client.close()
     client = HostAgentClient(resolved_config)
 
-    history_store: ConsoleHistoryStore | None = None
-    status_tracker: AgentStatusTracker | None = None
-    console_server: uvicorn.Server | None = None
+    history_store = ConsoleHistoryStore(
+        resolved_config.identity_path.parent / "host_console_history.sqlite3",
+        limit=resolved_config.console_history_limit,
+    )
+    status_tracker = AgentStatusTracker()
     console_enrollment_client: HostAgentEnrollmentClient | None = None
-    if resolved_config.console_enabled:
-        history_store = ConsoleHistoryStore(
-            resolved_config.identity_path.parent / "host_console_history.sqlite3",
-            limit=resolved_config.console_history_limit,
-        )
-        status_tracker = AgentStatusTracker()
-        if resolved_config.enrollment_managed:
-            console_enrollment_client = HostAgentEnrollmentClient(resolved_config)
-        console_app = create_console_app(
-            config=resolved_config,
-            manager=resolved_manager,
-            config_store=config_store,
-            local_account_store=LocalAccountStore(resolved_config.local_account_path),
-            identity_store=resolved_identity_store,
-            history_store=history_store,
-            status_tracker=status_tracker,
-            session_manager=SessionManager(
-                ttl_seconds=resolved_config.console_session_ttl_seconds
-            ),
-            enrollment_client=console_enrollment_client,
-        )
-        console_server = uvicorn.Server(
-            uvicorn.Config(
-                console_app,
-                host=resolved_config.console_bind_host,
-                port=resolved_config.console_port,
-                log_level="warning",
-            )
+    if resolved_config.enrollment_managed:
+        console_enrollment_client = HostAgentEnrollmentClient(resolved_config)
+    console_app = create_console_app(
+        config=resolved_config,
+        manager=resolved_manager,
+        config_store=config_store,
+        local_account_store=LocalAccountStore(resolved_config.local_account_path),
+        identity_store=resolved_identity_store,
+        history_store=history_store,
+        status_tracker=status_tracker,
+        session_manager=SessionManager(
+            ttl_seconds=resolved_config.console_session_ttl_seconds
+        ),
+        enrollment_client=console_enrollment_client,
+    )
+    console_server = _EmbeddedConsoleServer(
+        uvicorn.Config(
+            console_app,
+            host=resolved_config.console_bind_host,
+            port=resolved_config.console_port,
+            log_level="warning",
         )
+    )
 
     heartbeat = HeartbeatSynchronizer(
         resolved_manager,
         client,
         resolved_config,
         status_tracker=status_tracker,
-        on_sync=(
-            (
-                lambda device_count: history_store.record_heartbeat(
-                    device_count=device_count
-                )
-            )
-            if history_store is not None
-            else None
+        on_sync=lambda device_count: history_store.record_heartbeat(
+            device_count=device_count
         ),
         policy_cache=HostPolicyCacheStore(
             resolved_config.identity_path.parent / "host_governance_policy.json"
         ),
-        on_policy_sync=(
-            (lambda revision: history_store.record_policy_sync(revision=revision))
-            if history_store is not None
-            else None
+        on_policy_sync=lambda revision: history_store.record_policy_sync(
+            revision=revision
         ),
     )
     executor = AssignmentExecutor(
@@ -216,14 +209,8 @@ def create_application(
         client,
         active_runner,
         status_tracker=status_tracker,
-        on_result=(
-            (
-                lambda assignment, result: _record_assignment_history(
-                    history_store, assignment, result
-                )
-            )
-            if history_store is not None
-            else None
+        on_result=lambda assignment, result: _record_assignment_history(
+            history_store, assignment, result
         ),
     )
     return HostAgentApplication(

apps/device-host-agent/host_agent/config.py

@@ -29,7 +29,6 @@ class HostAgentConfig:
     retry_backoff_seconds: float = 1.0
     max_retry_backoff_seconds: float = 30.0
     max_retry_attempts: int = 5
-    console_enabled: bool = False
     console_bind_host: str = "127.0.0.1"
     console_port: int = 8765
     console_allow_non_loopback: bool = False
@@ -96,7 +95,6 @@ def load_host_agent_config(
             "HOST_AGENT_MAX_RETRY_ATTEMPTS",
             5,
         ),
-        console_enabled=_truthy(values, "HOST_AGENT_CONSOLE_ENABLED", False),
         console_bind_host=values.get(
             "HOST_AGENT_CONSOLE_BIND_HOST", "127.0.0.1"
         ).strip(),
@@ -122,7 +120,7 @@ def load_host_agent_config(
         raise HostAgentConfigurationError(
             "maximum retry backoff must not be less than initial backoff"
         )
-    if config.console_enabled and (
+    if (
         config.console_bind_host not in _LOOPBACK_BIND_HOSTS
         and not config.console_allow_non_loopback
     ):