testcontainers / testcontainers/testcontainers-python
docker.errors.NotFound: 404 Client Error when launching MongoDB on Ubuntu 22.04 running in WSL2.
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Description
Describe the bug
...expected it to run?
To Reproduce
Provide a self-contained code snippet that illustrates the bug or unexpected behavior. Ideally, send a Pull Request to illustrate with a test that illustrates the problem.
from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorCollection
from testcontainers.core.container import DockerContainer
from testcontainers.mongodb import MongoDbContainer
from testcontainers.core.waiting_utils import wait_for
async def test_db():
with DockerContainer("mongodb/mongodb-community-server:latest").with_bind_ports(27017, 27017) as mongo_container:
def connect():
return AsyncIOMotorClient("mongodb://{}:{}".format(mongo_container.get_container_host_ip(),
mongo_container.get_exposed_port(27017)))
db = wait_for(connect).primer
result = db["restaurants"].insert_one(
{
"address": {
"street": "2 Avenue",
"zipcode": "10075",
"building": "1480",
"coord": [-73.9557413, 40.7720266]
},
"borough": "Manhattan",
"cuisine": "Italian",
"name": "Vella",
"restaurant_id": "41704620"
}
)
cursor = db.restaurants.find({"borough": "Manhattan"})
for document in await cursor.to_list(1000):
print(document)
Runtime environment
Provide a summary of your runtime environment. Which operating system, python version, and docker version are you using? What is the version of testcontainers-python you are using? You can run the following commands to get the relevant information.
# Get the operating system information (on a unix os).
$ uname -a
Linux DESKTOP-GJIUB03 5.15.90.1-microsoft-standard-WSL2 #1 SMP Fri Jan 27 02:56:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
# Get the python version.
$ python --version
Python 3.10.6
# Get the docker version and other docker information.
$ docker info
https://pastebin.com/raw/5meC1tZJ
# Get all python packages.
$ pip freeze
https://pastebin.com/raw/zJQfnQkb
Latest version of testcontainers-python and MongoDB.
Full traceback when I run the snippet: https://pastebin.com/raw/3TvwYiLa (warn me if I doxxed myself in somewhere)
I can launch this container inside WSL, so Docker is working. Weird.

Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the provided Python snippet using DockerContainer or MongoDbContainer on Ubuntu 22.04 under WSL2. Review the linked traceback, Docker info, and package versions to identify why launching MongoDB returns a 404. Done means the cause is documented and the MongoDB test runs successfully in the reported environment.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- docker, mongodb, python
- Domain
- databases, devops, testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100