问题
I can not connect to django through the port in the container. I'm using this address: 0.0.0.0.:8000 and see: http://joxi.ru/Dr8MeGLhkBWnLm. I'm creating an image and a container with one command: 'docker-compose up -d'.
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4fea50856eef docker_web "python manage.py ru…" 13 seconds ago Up 11 seconds 0.0.0.0:8000->8000/tcp docker_web_1
docker-compose.yaml
version: '3'
services:
web:
build:
context: .
dockerfile: /django.testsite/Dockerfile
ports:
- "8000:8000"
Dockerfile
FROM python:3
RUN easy_install pip
RUN pip install django==1.9.12
RUN pip install requests
ADD . /.
WORKDIR /django.testsite
CMD ["python", "manage.py", "runserver", "8000"]
How do I solve this issue?
回答1:
Your issue:
CMD ["python", "manage.py", "runserver", "8000"]
In order for it to work, you need to change it to:
CMD ["python", "manage.py", "runserver", "0.0.0.0", 8000"]
and finally, use http://127.0.0.1:8000/ in your browser.
Why? Well python thinks you're exposing it on 127.0.0.1 when in reality you want the eth0 address, since that can change, and we don't want to hard code it, we use 0.0.0.0 which means "ALL" interfaces.
Remember docker 127.0.0.1 IS NOT your host 127.0.0.1, each docker container has its own loopback.
To get it to work fully:
docker-compose down
docker rmi docker_web
docker-compose up -d
Or.. (i'm like 80% sure this is the syntax)
docker-compose down
docker-compose up -d --rebuild
If its really not cooperating, see docker ps -a and ensure there is NOTHING running. (ps. you can get rid of it using docker rm <id>; extra credit: docker ps -aq | xargs docker rm does it all for you ;) )
Extra: If you don't want to write out 0.0.0.0 you can simply write 0 -- does the same thing.
来源：https://stackoverflow.com/questions/49476217/docker-cant-access-django-server