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?
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.
Regarding your docker run command seems to be a typo
from
docker run -it -d p 5000:5000 flaskapp
to
docker run -it -d -p 5000:5000 flaskapp
As defined here:(Official) https://docs.docker.com/engine/reference/commandline/run/