Question

为了进行测试，我尝试在Docker容器中设置Postgres，以便我们的python应用可以运行它的测试套件。

这是我的Dockerfile：

# Set the base image to Ubuntu
FROM ubuntu:16.04

# Update the default application repository sources list
RUN apt-get update && apt-get install -y \
  python2.7 \
  python-pip \
  python-dev \
  build-essential \
  libpq-dev \
  libsasl2-dev \
  libffi-dev \
  postgresql

USER postgres
RUN /etc/init.d/postgresql start && \
  psql -c "CREATE USER circle WITH SUPERUSER PASSWORD 'circle';" && \
  createdb -O darwin circle_test
USER root
RUN service postgresql stop && service postgresql start

# Upgrade pip
RUN pip install --upgrade pip

COPY . /app
WORKDIR /app

RUN pip install -r requirements.txt

EXPOSE 5000

# Set the container entrypoint
ENTRYPOINT ["gunicorn", "--config", "/app/config/gunicorn.py", "--access-logfile", "-", "--error-logfile", "-", "app:app"]

当我跑步时：

docker run --entrypoint python darwin:latest -m unittest discover -v -s test

我得到了：

could not connect to server: Connection refused
        Is the server running on host "localhost" (127.0.0.1) and accepting
        TCP/IP connections on port 5432?

我可以让它工作的唯一方法是，如果我进入容器，重新启动postgres并直接运行测试套件。

我在这里找不到什么东西？