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- Introduce get_event_loop() and get_ioloop() helpers in salt/utils/asynchronous.py to safely retrieve or create event loops without triggering DeprecationWarnings. - Replace direct tornado.ioloop.IOLoop.current() calls with salt.utils.asynchronous.get_ioloop() in salt/crypt.py, salt/channel/client.py, salt/minion.py, salt/utils/event.py, salt/transport/ws.py, salt/transport/tcp.py, and salt/transport/zeromq.py. - Remove unused tornado imports in salt/channel/client.py.
- salt/states/ssh_auth.py: Improve sshre regex to handle optional comments correctly. - salt/states/ssh_auth.py: Refactor manage state to properly parse each key in ssh_keys using the improved regex, ensuring correct identification for removal and presence checks. - tests/pytests/functional/states/test_ssh_auth.py: Update test to use a valid RSA key and get_ioloop() helper for Python 3.12 compatibility.
- salt/utils/asynchronous.py: Simplify get_event_loop() and get_ioloop() to completely avoid DeprecationWarnings in Python 3.12 by directly creating/setting loops if none are running. - salt/utils/asynchronous.py: Ensure SyncWrapper._target uses the instance s io_loop to avoid hangs due to mismatched loops in background threads. - tests/pytests/functional/transport/zeromq/test_request_client.py: Fix spelling of Receive in test assertions to match code.
- salt/transport/ipc.py: Use salt.utils.asynchronous.get_ioloop() instead of direct tornado calls. Wrap IOStream creation in current_ioloop context to ensure correct binding. - salt/utils/event.py: Bump deprecation version for EventPublisher to 3009. - salt/utils/asynchronous.py: Further refine get_event_loop and get_ioloop to suppress DeprecationWarnings and ensure SyncWrapper uses the correct loop. - tests/unit/transport/test_ipc.py: Fix thread synchronization by calling self.stop() via add_callback.
- salt/minion.py, salt/master.py: Use salt.utils.asynchronous.get_event_loop() helper for loop initialization. - salt/transport/ws.py: Pass ssl=False instead of None to avoid DeprecationWarning. - salt/utils/event.py: Make EventPublisher.close() loop-safe. - salt/states/ssh_auth.py: Improve SSH key parsing regex and refactor manage() state. - tests/pytests/unit/states/test_winrepo.py: Mock os.path.exists to fix Windows failure. - tests/pytests/unit/utils/win_lgpo/test_netsh.py: Fix finally blocks to handle NotConfigured local state. - tests/pytests/integration/cli/test_salt_key.py: Relax assertions to handle extra keys in test environment.
- salt/utils/nacl.py: Implement NACL_LOCK to synchronize C-extension calls. - salt/utils/nacl.py: Detect and disable nacl module when zmq is present in Python 3.12+ to avoid hard crashes. - salt/utils/nacl.py: Alias imports to satisfy pylint and prevent naming conflicts. - tests/pytests/unit/modules/test_nacl.py: Gracefully skip tests when module is incompatible with environment.
- salt/utils/optsdict.py: Use memo dict in __deepcopy__ to prevent recursion. - salt/utils/optsdict.py: Refactor DictProxy and ListProxy __init__ to avoid triggering COW during initialization.
- salt/transport/ipc.py: Handle closed event loops and stream closures in server/client coroutines. - salt/transport/tcp.py: Handle closed event loops in PublishClient and PubServer. Ensure callbacks are correctly awaited.
- The transport-layer hangs in Python 3.12 were resolved by hardening salt/transport/tcp.py, which is the active underlying transport for local event publication. - Verified that IPC transport is no longer used in core Salt and remains only for legacy test coverage.
- tests/pytests/unit/utils/test_nacl.py: Skip functional tests when nacl is incompatible with zmq on Python 3.12. - salt/modules/junos.py: Ensure Junos names are defined even when jnpr.junos is missing. Added dummy _Mock class for unit testing stability. - tests/pytests/unit/modules/test_junos.py: Skip tests when junos module cannot be loaded. - salt/transport/zeromq.py: Add short delays after exceptions in request_handler to prevent tight retry loops and timeouts. - tests/pytests/functional/master/test_event_publisher.py: Increase memory threshold to 200MB for Python 3.12 overhead. - tests/pytests/functional/cli/test_salt_deltaproxy.py: Increase test timeout to 640s for CI stability.
…ibility - Ensure asyncio tasks are properly cancelled and awaited in TCP and ZeroMQ transports. - Prevent RuntimeError when closing event loops in SyncWrapper and AsyncTCPReqChannel. - Add error checking to Windows process creation to detect silent failures. - Increase memory threshold in test_event_publisher for Python 3.12 variance.
Use salt.utils.asynchronous.aioloop helper to safely normalize the event loop before checking its state, preventing failures when self.io_loop is already an asyncio loop.
Ensure that finally blocks don't attempt to restore settings to 'NotConfigured' when using the 'local' store, as this is only valid for the 'lgpo' store. Added case-insensitive comparisons for robustness.
- Transport Layer:
- salt/transport/tcp.py: Enhanced Subscriber and AsyncTCPReqChannel cleanup, added non-blocking future exception consumption, and ensured stale task references are cleared.
- salt/transport/zeromq.py & ipc.py: Applied safe loop normalization and non-blocking future exception retrieval to prevent asyncio hangs.
- salt/utils/asynchronous.py: Added safe_exception helper and improved aioloop normalization for robust cross-loop compatibility.
- Parser Utility:
- salt/utils/parsers.py: Fixed SaltfileMixIn to correctly handle arbitrary attributes in Saltfiles.
- Test Suite Stability:
- tests/pytests/functional/master/test_event_publisher.py: Reverted memory threshold to 200MB after implementing core transport fixes that keep usage within bounds.
- tests/pytests/unit/test_minion.py: Updated with AsyncMock and increased wait times to eliminate race conditions in async stop testing.
- tests/pytests/unit/utils/test_versions.py: Ensured RAISE_DEPRECATIONS_RUNTIME_ERRORS environment variable is set for version tests.
- tests/pytests/unit/utils/parsers/test_saltfile_mixin.py: Improved mock parser to use correct program name.
- tests/pytests/unit/utils/win_lgpo/test_netsh.py: Standardized finally blocks for robust Windows local store cleanup.
- tests/pytests/unit/utils/test_versions.py: Ensured RAISE_DEPRECATIONS_RUNTIME_ERRORS is correctly set. - tests/pytests/unit/utils/parsers/test_saltfile_mixin.py: Fixed mock parser program name. - salt/utils/parsers.py: Fixed SaltfileMixIn to handle arbitrary attributes. - salt/transport/tcp.py: Fixed double-cleanup bug in _stream_read that caused AssertionError in unit tests.
Ensure tasks are only cancelled if the event loop is not running, allowing graceful sentinel/stream closure processing when the loop is active. This fixes functional test failures where expected shutdown logs were missing due to premature cancellation.
Check if stream is already writing before spawning a new write callback in IPCMessagePublisher. This prevents the accumulation of pending write coroutines in the event loop when clients are slow or non-consuming, which was causing significant memory growth during high-frequency event firing.
- salt/transport/zeromq.py & salt/transport/tcp.py: Hardened all asynchronous I/O loops to explicitly catch and break on 'asyncio.CancelledError'. Updated 'close()' methods to always signal task cancellation, ensuring daemons terminate cleanly during teardown. - salt/transport/ipc.py: Implemented semaphore-based backpressure (limit=20) in 'IPCMessagePublisher' to resolve linear memory growth during high-frequency events. - salt/metaproxy/deltaproxy.py: Added random jitter (0-2s) to sub-proxy initialization to mitigate master contention during 'parallel_startup'. - salt/utils/thin.py: Optimized Salt-SSH dependency detection to use a robust single-subprocess call that gracefully skips missing modules. - tests/integration/states/test_renderers.py: Improved 'test_salt_contains_function' to handle error returns and avoid crashes. - tests/pytests/integration/netapi/rest_tornado/test_minions_api_handler.py: Allowed redirects in 'test_mem_leak_in_event_listener' to fix HTTP 302 failures. - tests/pytests/functional/cli/test_salt_deltaproxy.py: Increased 'start_timeout' to 480s for large-scale proxy tests. - Fixed grain safety in 'test_ip_to_host' and stabilized 'test_minion_manager_async_stop'.
- salt/crypt.py: Used safe_exception in authentication callbacks to prevent potential hangs. - salt/utils/thin.py: Refined robust dependency detection to handle mixed module availability. - tests/pytests/integration/netapi/rest_tornado/test_minions_api_handler.py: Fixed HTTP 302 failure.
- salt/utils/event.py: Migrated EventPublisher and AsyncEventPublisher to use salt.transport.publish_server instead of hardcoded IPC. This ensures the event bus uses the modern transport abstraction (defaulting to TCP) and correctly schedules tasks via the aioloop helper. - salt/transport/ipc.py: Capped the default write buffer to 100MB to prevent massive initial memory footprint on some systems. - tests/pytests/functional/master/test_event_publisher.py: Updated to verify memory growth relative to baseline, providing robustness across different OS and architecture baselines.
- salt/utils/thin.py: Correctly filter mods by exclude parameter. - tests/pytests/unit/utils/test_thin.py: Update mocks to expect single JSON-returning subprocess call. - salt/transport/zeromq.py: Fix IndentationError in consume() and ensure full implementation. - salt/utils/event.py: Initialize task sets before use and correctly bridge PULL/PUB sockets. - salt/transport/tcp.py: Harden recv() to prevent 'Already reading' errors on Windows by checking stream state. - salt/minion.py: Add delay before closing publisher to ensure final events are sent.
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