CODEWITHSUNDEEP
pythondockerflask
Francis C
Francis C

Reputation: 281

getting a socket hang up error when trying to access my flask app in a docker container

Dockerfile

from ubuntu:latest

RUN apt-get update -y && apt-get install -y python3-pip

COPY . /app

RUN pip3 install -r /app/requirements.txt

ENTRYPOINT ["python3"]
CMD ["app/app.py"]

run commands

docker build -t flaskapp .
docker run -it -d p 5000:5000 flaskapp

if i sent a request to localhost:5000 via Postman, i would get a Error: Socket hang up error

Anyone know why this is an issue?

Upvotes: 8

Views: 10947

Answers (2)

Akshay Rajakanthan
Akshay Rajakanthan

Reputation: 69

I had a similar issue and resolved it like via these two methods. Try making either of these changes in your code:

1. Add hostname - Add any IP host (127.0.0.1 or whatever you like) in your flask code itself like this:

if __name__ == "__main__":
    app.run(host='0.0.0.0',debug=True,port='9999')

2. Add WORKDIR in your Dockerfile - Not mandatory but a try.

Upvotes: 6

Francis C
Francis C

Reputation: 281

the exposed host in my flask app was 127.0.0.1 in which i had to switch to 0.0.0.0

Upvotes: 12

Related Questions