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Update asyncio daemon tutorial

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Roman Mogylatov 2021-09-30 12:09:22 -04:00
parent 2ddb2095ae
commit c8d675413e
1 changed files with 42 additions and 44 deletions
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docs/tutorials/asyncio-daemon.rst
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@ -59,8 +59,8 @@ The output should look something like:
.. code-block:: bash .. code-block:: bash
Docker version 19.03.12, build 48a66213fe Docker version 20.10.5, build 55c4c88
docker-compose version 1.26.2, build eefe0d31 docker-compose version 1.29.0, build 07737305
.. note:: .. note::
@ -135,7 +135,7 @@ Put next lines into the ``Dockerfile`` file:
.. code-block:: bash .. code-block:: bash
FROM python:3.8-buster FROM python:3.9-buster
ENV PYTHONUNBUFFERED=1 ENV PYTHONUNBUFFERED=1
@ -267,9 +267,9 @@ Put next lines into the ``__main__.py`` file:
... ...
if __name__ == '__main__': if __name__ == "__main__":
container = Container() container = Container()
container.config.from_yaml('config.yml') container.config.from_yaml("config.yml")
container.init_resources() container.init_resources()
main() main()
@ -356,7 +356,7 @@ and next into the ``dispatcher.py``:
asyncio.run(self.start()) asyncio.run(self.start())
async def start(self) -> None: async def start(self) -> None:
self._logger.info('Starting up') self._logger.info("Starting up")
for monitor in self._monitors: for monitor in self._monitors:
self._monitor_tasks.append( self._monitor_tasks.append(
@ -376,11 +376,11 @@ and next into the ``dispatcher.py``:
self._stopping = True self._stopping = True
self._logger.info('Shutting down') self._logger.info("Shutting down")
for task, monitor in zip(self._monitor_tasks, self._monitors): for task, monitor in zip(self._monitor_tasks, self._monitors):
task.cancel() task.cancel()
self._monitor_tasks.clear() self._monitor_tasks.clear()
self._logger.info('Shutdown finished successfully') self._logger.info("Shutdown finished successfully")
@staticmethod @staticmethod
async def _run_monitor(monitor: Monitor) -> None: async def _run_monitor(monitor: Monitor) -> None:
@ -396,7 +396,7 @@ and next into the ``dispatcher.py``:
except asyncio.CancelledError: except asyncio.CancelledError:
break break
except Exception: except Exception:
monitor.logger.exception('Error executing monitor check') monitor.logger.exception("Error executing monitor check")
await asyncio.sleep(_until_next(last=time_start)) await asyncio.sleep(_until_next(last=time_start))
@ -442,13 +442,11 @@ and call the ``run()`` method. We will use :ref:`wiring` feature.
Edit ``__main__.py``: Edit ``__main__.py``:
.. code-block:: python .. code-block:: python
:emphasize-lines: 3-7,11-13,20 :emphasize-lines: 3-5,9-11,18
"""Main module.""" """Main module."""
import sys from dependency_injector.wiring import Provide, inject
from dependency_injector.wiring import inject, Provide
from .dispatcher import Dispatcher from .dispatcher import Dispatcher
from .containers import Container from .containers import Container
@ -459,11 +457,11 @@ Edit ``__main__.py``:
dispatcher.run() dispatcher.run()
if __name__ == '__main__': if __name__ == "__main__":
container = Container() container = Container()
container.config.from_yaml('config.yml') container.config.from_yaml("config.yml")
container.init_resources() container.init_resources()
container.wire(modules=[sys.modules[__name__]]) container.wire(modules=[__name__])
main() main()
@ -613,10 +611,10 @@ Edit ``monitors.py``:
options: Dict[str, Any], options: Dict[str, Any],
) -> None: ) -> None:
self._client = http_client self._client = http_client
self._method = options.pop('method') self._method = options.pop("method")
self._url = options.pop('url') self._url = options.pop("url")
self._timeout = options.pop('timeout') self._timeout = options.pop("timeout")
super().__init__(check_every=options.pop('check_every')) super().__init__(check_every=options.pop("check_every"))
async def check(self) -> None: async def check(self) -> None:
time_start = time.time() time_start = time.time()
@ -631,11 +629,11 @@ Edit ``monitors.py``:
time_took = time_end - time_start time_took = time_end - time_start
self.logger.info( self.logger.info(
'Check\n' "Check\n"
' %s %s\n' " %s %s\n"
' response code: %s\n' " response code: %s\n"
' content length: %s\n' " content length: %s\n"
' request took: %s seconds', " request took: %s seconds",
self._method, self._method,
self._url, self._url,
response.status, response.status,
@ -913,22 +911,22 @@ and put next into it:
def container(): def container():
container = Container() container = Container()
container.config.from_dict({ container.config.from_dict({
'log': { "log": {
'level': 'INFO', "level": "INFO",
'formant': '[%(asctime)s] [%(levelname)s] [%(name)s]: %(message)s', "formant": "[%(asctime)s] [%(levelname)s] [%(name)s]: %(message)s",
}, },
'monitors': { "monitors": {
'example': { "example": {
'method': 'GET', "method": "GET",
'url': 'http://fake-example.com', "url": "http://fake-example.com",
'timeout': 1, "timeout": 1,
'check_every': 1, "check_every": 1,
}, },
'httpbin': { "httpbin": {
'method': 'GET', "method": "GET",
'url': 'https://fake-httpbin.org/get', "url": "https://fake-httpbin.org/get",
'timeout': 1, "timeout": 1,
'check_every': 1, "check_every": 1,
}, },
}, },
}) })
@ -937,7 +935,7 @@ and put next into it:
@pytest.mark.asyncio @pytest.mark.asyncio
async def test_example_monitor(container, caplog): async def test_example_monitor(container, caplog):
caplog.set_level('INFO') caplog.set_level("INFO")
http_client_mock = mock.AsyncMock() http_client_mock = mock.AsyncMock()
http_client_mock.request.return_value = RequestStub( http_client_mock.request.return_value = RequestStub(
@ -949,14 +947,14 @@ and put next into it:
example_monitor = container.example_monitor() example_monitor = container.example_monitor()
await example_monitor.check() await example_monitor.check()
assert 'http://fake-example.com' in caplog.text assert "http://fake-example.com" in caplog.text
assert 'response code: 200' in caplog.text assert "response code: 200" in caplog.text
assert 'content length: 635' in caplog.text assert "content length: 635" in caplog.text
@pytest.mark.asyncio @pytest.mark.asyncio
async def test_dispatcher(container, caplog, event_loop): async def test_dispatcher(container, caplog, event_loop):
caplog.set_level('INFO') caplog.set_level("INFO")
example_monitor_mock = mock.AsyncMock() example_monitor_mock = mock.AsyncMock()
httpbin_monitor_mock = mock.AsyncMock() httpbin_monitor_mock = mock.AsyncMock()