365 lines
16 KiB
Python
365 lines
16 KiB
Python
import importlib.util
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import json
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import os
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import stat
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import sys
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import tempfile
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import threading
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import unittest
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from pathlib import Path
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from unittest import mock
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def _load_serverless_config_module(*, without_fcntl=False):
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module_path = Path(__file__).resolve().parents[1] / "utils" / "serverless_config.py"
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module_name = (
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"dist_serverless_config_no_fcntl_test_module"
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if without_fcntl
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else "dist_serverless_config_test_module"
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)
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sys.modules.pop(module_name, None)
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spec = importlib.util.spec_from_file_location(module_name, module_path)
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assert spec is not None and spec.loader is not None
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module = importlib.util.module_from_spec(spec)
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sys.modules[module_name] = module
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if without_fcntl:
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with mock.patch.dict(sys.modules, {"fcntl": None}):
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spec.loader.exec_module(module)
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else:
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spec.loader.exec_module(module)
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return module
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serverless_config = _load_serverless_config_module()
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class ValidateServerlessWorkerTests(unittest.TestCase):
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def test_returns_copy_with_runpod_defaults(self):
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worker = {"id": "worker-1", "endpoint_id": "ep_123-abc", "name": "GPU"}
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result = serverless_config.validate_serverless_worker(worker)
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self.assertEqual(
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result,
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{
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"id": "worker-1",
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"endpoint_id": "ep_123-abc",
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"name": "GPU",
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"type": "serverless",
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"provider": "runpod",
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"jobs_per_run": 1,
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"concurrency": 1,
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"timeout_seconds": 1800,
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},
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)
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self.assertIsNot(result, worker)
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self.assertEqual(worker, {"id": "worker-1", "endpoint_id": "ep_123-abc", "name": "GPU"})
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def test_accepts_inclusive_numeric_bounds(self):
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for jobs, concurrency, timeout in ((1, 1, 30), (16, 16, 86400)):
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with self.subTest(jobs=jobs, concurrency=concurrency, timeout=timeout):
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result = serverless_config.validate_serverless_worker(
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{
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"id": "worker-1",
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"endpoint_id": "ep-123",
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"jobs_per_run": jobs,
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"concurrency": concurrency,
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"timeout_seconds": timeout,
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}
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)
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self.assertEqual(result["jobs_per_run"], jobs)
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self.assertEqual(result["concurrency"], concurrency)
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self.assertEqual(result["timeout_seconds"], timeout)
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def test_rejects_missing_or_empty_id_and_endpoint(self):
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base: dict[str, object] = {"id": "worker-1", "endpoint_id": "ep-123"}
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for field, value in (("id", None), ("id", " "), ("endpoint_id", ""), ("endpoint_id", "https://api.runpod.io/ep-123")):
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with self.subTest(field=field, value=value):
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worker = dict(base)
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worker[field] = value
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker(worker)
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worker = dict(base)
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del worker["id"]
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker(worker)
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def test_endpoint_id_must_be_ascii_opaque_identifier(self):
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for endpoint_id in ("ep/123", "ep 123", "ép-123", "ep:123", "https://example.test"):
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with self.subTest(endpoint_id=endpoint_id):
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker(
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{"id": "worker-1", "endpoint_id": endpoint_id}
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)
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def test_endpoint_id_matches_runpod_client_length_limit(self):
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valid_id = "e" * 200
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result = serverless_config.validate_serverless_worker(
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{"id": "worker-1", "endpoint_id": valid_id}
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)
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self.assertEqual(result["endpoint_id"], valid_id)
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker(
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{"id": "worker-1", "endpoint_id": "e" * 201}
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)
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def test_enabled_must_be_boolean_when_supplied(self):
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base = {"id": "worker-1", "endpoint_id": "ep-123"}
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for enabled in (True, False):
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with self.subTest(enabled=enabled):
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self.assertIs(
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serverless_config.validate_serverless_worker(
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{**base, "enabled": enabled}
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)["enabled"],
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enabled,
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)
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for enabled in ("false", 0, 1, None):
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with self.subTest(enabled=enabled):
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker(
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{**base, "enabled": enabled}
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)
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def test_rejects_unknown_provider_and_non_serverless_type(self):
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base = {"id": "worker-1", "endpoint_id": "ep-123"}
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for extra in ({"provider": "other"}, {"type": "local"}):
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with self.subTest(extra=extra):
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker({**base, **extra})
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def test_numeric_fields_reject_bool_float_and_out_of_range(self):
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base = {"id": "worker-1", "endpoint_id": "ep-123"}
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invalid_values = {
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"jobs_per_run": (True, 1.0, 0, 17),
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"concurrency": (False, 2.5, 0, 17),
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"timeout_seconds": (True, 30.0, 29, 86401),
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}
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for field, values in invalid_values.items():
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for value in values:
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with self.subTest(field=field, value=value):
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker({**base, field: value})
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def test_requires_worker_object(self):
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for worker in (None, [], "worker"):
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with self.subTest(worker=worker):
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with self.assertRaises(ValueError):
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serverless_config.validate_serverless_worker(worker)
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class SecretStoreTests(unittest.TestCase):
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def setUp(self):
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self.tempdir = tempfile.TemporaryDirectory()
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self.root = Path(self.tempdir.name)
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self.path = self.root / "private" / "runpod-secrets.json"
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def tearDown(self):
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self.tempdir.cleanup()
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def test_set_get_has_delete_and_persists_as_json_mapping(self):
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store = serverless_config.SecretStore(self.path)
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store.set("worker-1", "secret-value")
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self.assertEqual(store.get("worker-1"), "secret-value")
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self.assertTrue(store.has("worker-1"))
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self.assertIsNone(store.get("missing"))
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self.assertFalse(store.has("missing"))
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self.assertEqual(json.loads(self.path.read_text(encoding="utf-8")), {"worker-1": "secret-value"})
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self.assertEqual(serverless_config.SecretStore(self.path).get("worker-1"), "secret-value")
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store.delete("worker-1")
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self.assertIsNone(store.get("worker-1"))
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self.assertFalse(store.has("worker-1"))
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def test_rejects_api_keys_with_newlines_or_over_4096_characters(self):
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store = serverless_config.SecretStore(self.path)
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for key in ("key\nwith-line-feed", "key\rwith-carriage-return", "k" * 4097):
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with self.subTest(key_length=len(key)):
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with self.assertRaises(serverless_config.SecretStoreError):
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store.set("worker-1", key)
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store.set("worker-1", "k" * 4096)
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self.assertEqual(store.get("worker-1"), "k" * 4096)
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def test_new_secret_file_and_directory_have_restrictive_modes(self):
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store = serverless_config.SecretStore(self.path)
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store.set("worker-1", "secret-value")
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self.assertEqual(stat.S_IMODE(self.path.stat().st_mode), 0o600)
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self.assertEqual(stat.S_IMODE(self.path.parent.stat().st_mode), 0o700)
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def test_missing_store_reads_as_empty_without_creating_files(self):
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store = serverless_config.SecretStore(self.path)
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self.assertIsNone(store.get("worker-1"))
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self.assertFalse(store.has("worker-1"))
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self.assertFalse(self.path.parent.exists())
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def test_corrupt_store_fails_closed_without_overwriting_or_leaking_contents(self):
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self.path.parent.mkdir()
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corrupt = b'{"partial": "NEVER-LEAK-THIS-secret'
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self.path.write_bytes(corrupt)
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store = serverless_config.SecretStore(self.path)
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for operation in (
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lambda: store.get("worker-1"),
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lambda: store.set("worker-1", "replacement-secret"),
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lambda: store.delete("worker-1"),
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):
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with self.subTest(operation=operation):
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with self.assertRaises(Exception) as raised:
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operation()
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self.assertNotIn("NEVER-LEAK-THIS", str(raised.exception))
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self.assertNotIn("replacement-secret", str(raised.exception))
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self.assertEqual(self.path.read_bytes(), corrupt)
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def test_rejects_non_mapping_or_non_string_store_values_without_leaking_data(self):
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for corrupt in (b'["opaque-stored-value"]', b'{"worker": 23}', b'{"": "opaque-stored-value"}'):
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with self.subTest(corrupt=corrupt):
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self.path.parent.mkdir(exist_ok=True)
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self.path.write_bytes(corrupt)
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with self.assertRaises(Exception) as raised:
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serverless_config.SecretStore(self.path).get("worker")
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self.assertNotIn("opaque-stored-value", str(raised.exception))
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def test_rejects_symlink_file_and_preserves_link_target(self):
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target = self.root / "target.json"
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target.write_text('{"worker-1": "target-secret"}', encoding="utf-8")
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self.path.parent.mkdir()
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self.path.symlink_to(target)
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store = serverless_config.SecretStore(self.path)
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with self.assertRaises(Exception):
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store.get("worker-1")
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with self.assertRaises(Exception):
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store.set("worker-1", "replacement-secret")
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self.assertEqual(target.read_text(encoding="utf-8"), '{"worker-1": "target-secret"}')
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def test_rejects_symlinked_parent_directory(self):
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real_dir = self.root / "real"
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real_dir.mkdir()
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link_dir = self.root / "linked"
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link_dir.symlink_to(real_dir, target_is_directory=True)
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store = serverless_config.SecretStore(link_dir / "secrets.json")
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with self.assertRaises(Exception):
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store.set("worker-1", "secret-value")
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self.assertFalse((real_dir / "secrets.json").exists())
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def test_rejects_parent_traversal_in_store_path(self):
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store = serverless_config.SecretStore(self.root / "nested" / ".." / "secrets.json")
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with self.assertRaises(Exception):
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store.set("worker-1", "secret-value")
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self.assertFalse((self.root / "secrets.json").exists())
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def test_threaded_updates_from_independent_instances_are_not_lost(self):
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workers = 12
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barrier = threading.Barrier(workers)
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errors = []
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def write_one(index):
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try:
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barrier.wait(timeout=5)
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serverless_config.SecretStore(self.path).set(f"worker-{index}", f"key-{index}")
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except Exception as exc: # collected to fail in the test thread
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errors.append(exc)
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threads = [threading.Thread(target=write_one, args=(i,)) for i in range(workers)]
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for thread in threads:
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thread.start()
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for thread in threads:
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thread.join(timeout=10)
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self.assertFalse(any(thread.is_alive() for thread in threads), "writer thread did not finish")
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self.assertEqual(errors, [])
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saved = json.loads(self.path.read_text(encoding="utf-8"))
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self.assertEqual(saved, {f"worker-{i}": f"key-{i}" for i in range(workers)})
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class PublicConfigTests(unittest.TestCase):
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def test_redacts_credentials_preserves_other_fields_and_marks_only_serverless(self):
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with tempfile.TemporaryDirectory() as tempdir:
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store = serverless_config.SecretStore(Path(tempdir) / "private" / "keys.json")
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store.set("serverless-1", "stored-api-key")
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config = {
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"workers": [
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{
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"id": "serverless-1",
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"type": "serverless",
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"provider": "runpod",
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"endpoint_id": "ep-123",
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"api_key": "inline-secret",
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"clear_api_key": "another-secret",
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"credential": "credential-secret",
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"nested": {"runpod_credential": "nested-secret", "safe": "kept"},
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"name": "remote GPU",
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},
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{"id": "serverless-2", "type": "serverless", "name": "not configured"},
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{"id": "local-1", "type": "local", "api_key": "local-secret"},
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],
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"settings": {"mode": "preserved", "credentials_note": "remove-me"},
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}
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original = json.loads(json.dumps(config))
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result = serverless_config.public_config(config, store)
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first, second, local = result["workers"]
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self.assertEqual(first["api_key_configured"], True)
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self.assertEqual(second["api_key_configured"], False)
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self.assertNotIn("api_key_configured", local)
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self.assertNotIn("api_key", first)
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self.assertNotIn("clear_api_key", first)
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self.assertNotIn("credential", first)
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self.assertNotIn("runpod_credential", first["nested"])
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self.assertEqual(first["nested"]["safe"], "kept")
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self.assertNotIn("api_key", local)
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self.assertNotIn("credentials_note", result["settings"])
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self.assertEqual(first["name"], "remote GPU")
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self.assertEqual(config, original)
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self.assertIsNot(result, config)
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self.assertIsNot(result["workers"], config["workers"])
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def test_handles_non_dict_config_without_mutating_it(self):
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config = ["safe", {"api_key": "secret"}]
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result = serverless_config.public_config(config, serverless_config.SecretStore(self.root_path()))
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self.assertEqual(result, ["safe", {}])
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self.assertEqual(config, ["safe", {"api_key": "secret"}])
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def test_module_import_and_non_serverless_redaction_when_fcntl_unavailable(self):
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module = _load_serverless_config_module(without_fcntl=True)
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store = module.SecretStore(self.root_path())
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config = {
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"workers": [
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{"id": "local-1", "type": "local", "api_key": "inline-secret"}
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]
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}
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result = module.public_config(config, store)
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self.assertEqual(result, {"workers": [{"id": "local-1", "type": "local"}]})
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self.assertEqual(config["workers"][0]["api_key"], "inline-secret")
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def test_secret_operations_fail_clearly_without_fcntl(self):
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module = _load_serverless_config_module(without_fcntl=True)
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store = module.SecretStore(self.root_path())
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unsupported_message = "Serverless credential storage is currently supported on POSIX masters only"
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for operation in (
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lambda: store.get("worker-1"),
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lambda: store.set("worker-1", "api-key"),
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lambda: store.delete("worker-1"),
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lambda: store.has("worker-1"),
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):
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with self.subTest(operation=operation):
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with self.assertRaisesRegex(module.SecretStoreError, unsupported_message):
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operation()
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@staticmethod
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def root_path():
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return Path(tempfile.gettempdir()) / "not-created-serverless-secret-store" / "secrets.json"
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if __name__ == "__main__":
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unittest.main()
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