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MongoDbContainer on Windows 10 fails with getaddrinfo error #99
Description
The following code fails with testcontainers-python 3.0.2:
from testcontainers.mongodb import MongoDbContainer
with MongoDbContainer('mongo:4.2.2') as mongo_:
... db = mongo_.get_connection_client().test
... db.test.insert_one({'foo': 'bar'})
with
Pulling image mongo:4.2.2
Container started: d5ca66c443
Traceback (most recent call last):
File "<input>", line 3, in <module>
File "C:\...\venv\lib\site-packages\pymongo\collection.py", line 695, in insert_one
self._insert(document,
File "C:\...\venv\lib\site-packages\pymongo\collection.py", line 610, in _insert
return self._insert_one(
File "C:\...\venv\lib\site-packages\pymongo\collection.py", line 599, in _insert_one
self.__database.client._retryable_write(
File "C:\...\venv\lib\site-packages\pymongo\mongo_client.py", line 1490, in _retryable_write
with self._tmp_session(session) as s:
File "C:\Program Files\Python38\lib\contextlib.py", line 113, in __enter__
return next(self.gen)
File "C:\...\venv\lib\site-packages\pymongo\mongo_client.py", line 1823, in _tmp_session
s = self._ensure_session(session)
File "C:\...\venv\lib\site-packages\pymongo\mongo_client.py", line 1810, in _ensure_session
return self.__start_session(True, causal_consistency=False)
File "C:\...\venv\lib\site-packages\pymongo\mongo_client.py", line 1763, in __start_session
server_session = self._get_server_session()
File "C:\...\venv\lib\site-packages\pymongo\mongo_client.py", line 1796, in _get_server_session
return self._topology.get_server_session()
File "C:\...\venv\lib\site-packages\pymongo\topology.py", line 482, in get_server_session
self._select_servers_loop(
File "C:\...\venv\lib\site-packages\pymongo\topology.py", line 208, in _select_servers_loop
raise ServerSelectionTimeoutError(
pymongo.errors.ServerSelectionTimeoutError: localnpipe:32775: [Errno 11001] getaddrinfo failed
Interestingly, the MongoDbContainer.get_connection_url() method returns a URL with hostname localnpipe, which I suspect the mongo client does not understand. Using pymongo directly, I can connect to the created container using a hostname of localhost.
Activity
tuvshuud commentedon Jun 8, 2020
@arpost Thanks for reporting. I suspect
localnpipeis what docker client resolves internally. Since, test cases of this project does not cover Windows OS, I will test it on Windows machine soon. Meanwhile, possible workaround is that you can use TC_HOST env variable to set the ip address of the docker host. So thatget_connection_url()returns with specified host name.Also, can you test with PR #96 and share the result if possible?
arpost commentedon Jun 8, 2020
I tested with PR #96 and it does not address my issue, unfortunately. I believe the problem is in core/docker_client.py, and I'll submit a pull request soon.
alexanderankin commentedon Mar 8, 2024
#100