core: add orchestration and service definitions

tests/test_services.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from afs.schema import AFSConfig, ServiceConfig, ServicesConfig
+from afs.services.manager import ServiceManager
+
+
+def test_service_manager_lists_builtins() -> None:
+    manager = ServiceManager(config=AFSConfig(), platform_name="linux")
+    names = [definition.name for definition in manager.list_definitions()]
+    assert "orchestrator" in names
+
+
+def test_service_config_can_disable_service() -> None:
+    services = ServicesConfig(
+        enabled=True,
+        services={
+            "orchestrator": ServiceConfig(name="orchestrator", enabled=False),
+        },
+    )
+    manager = ServiceManager(config=AFSConfig(services=services), platform_name="linux")
+    names = [definition.name for definition in manager.list_definitions()]
+    assert "orchestrator" not in names
+
+
+def test_service_render_contains_execstart() -> None:
+    manager = ServiceManager(config=AFSConfig(), platform_name="linux")
+    unit = manager.render_unit("orchestrator")
+    assert "ExecStart=" in unit