refs #703: configure OCI GenAI root compartment

poc4_active_source_20260714/src/oci_genai_sdk.py

@@ -26,7 +26,10 @@ ALLOWED_OCI_SETTINGS = frozenset(
         "OCI_PROFILE",
     }
 )
-_COMPARTMENT_ID = re.compile(r"^ocid1\.compartment\.[A-Za-z0-9._-]+$")
+# OCI permits the tenancy OCID when the root compartment is selected.
+_COMPARTMENT_OR_ROOT_ID = re.compile(
+    r"^ocid1\.(?:compartment|tenancy)\.[A-Za-z0-9._-]+$"
+)
 
 
 class CompletionClient(Protocol):
@@ -95,7 +98,7 @@ def load_oci_settings() -> OCISettings:
         raise ValueError("unsupported OCI authentication mode")
 
     compartment_id = values.get("OCI_GENAI_COMPARTMENT_ID", "").strip()
-    if not _COMPARTMENT_ID.fullmatch(compartment_id):
+    if not _COMPARTMENT_OR_ROOT_ID.fullmatch(compartment_id):
         raise ValueError("OCI Generative AI compartment is not configured")
     return OCISettings(
         auth_type=auth_type,

poc4_active_source_20260714/tests/test_oci_genai_settings.py

@@ -0,0 +1,51 @@
+"""OCI GenAI configuration validation tests."""
+
+from __future__ import annotations
+
+import os
+import unittest
+
+from src.oci_genai_sdk import ALLOWED_OCI_SETTINGS, load_oci_settings
+
+
+class OCISettingsTest(unittest.TestCase):
+    def setUp(self) -> None:
+        self._previous = {key: os.environ.get(key) for key in ALLOWED_OCI_SETTINGS}
+        os.environ.update(
+            {
+                "OCI_AUTH_TYPE": "config_file",
+                "OCI_CONFIG_FILE": "/home/opc/.oci/config",
+                "OCI_PROFILE": "DEFAULT",
+            }
+        )
+
+    def tearDown(self) -> None:
+        for key, value in self._previous.items():
+            if value is None:
+                os.environ.pop(key, None)
+            else:
+                os.environ[key] = value
+
+    def test_accepts_a_child_compartment_ocid(self) -> None:
+        os.environ["OCI_GENAI_COMPARTMENT_ID"] = "ocid1.compartment.oc1..example"
+
+        settings = load_oci_settings()
+
+        self.assertEqual("ocid1.compartment.oc1..example", settings.compartment_id)
+
+    def test_accepts_a_tenancy_ocid_for_the_root_compartment(self) -> None:
+        os.environ["OCI_GENAI_COMPARTMENT_ID"] = "ocid1.tenancy.oc1..example"
+
+        settings = load_oci_settings()
+
+        self.assertEqual("ocid1.tenancy.oc1..example", settings.compartment_id)
+
+    def test_rejects_an_invalid_compartment_identifier(self) -> None:
+        os.environ["OCI_GENAI_COMPARTMENT_ID"] = "not-an-ocid"
+
+        with self.assertRaisesRegex(ValueError, "compartment is not configured"):
+            load_oci_settings()
+
+
+if __name__ == "__main__":
+    unittest.main()