Connect to Postgresql on Windows host machine with Docker

Question

I'm currently running a REST API on a docker container with the following Dockerfile:

FROM python:2.7
WORKDIR /app
RUN pip install uwsgi
COPY awf/requirements.txt ./awf/requirements.txt
RUN pip install -r awf/requirements.txt
COPY ./ ./
# Call collectstatic (customize the following line with the minimal environment variables needed for manage.py to run):
RUN python manage.py collectstatic --noinput
EXPOSE 8000
ENTRYPOINT [ "uwsgi" ]
CMD [ "--wsgi-file", "awf/wsgi.py", "--ini", "uwsgi.ini" ]

The Python REST API has the following DATABASE config in settings.yaml:

DATABASE: {
    engine: 'django.contrib.gis.db.backends.postgis',
    name: 'name',  
    user: 'user',
    password: 'pass',
    host: '192.168.99.100',
    port: '5432',
}

I have set this host:'192.168.99.100' because this is the docker-machine ip output.

When I run the docker container without mapping port 5432, I get the following error:

OperationalError: could not connect to server: Connection refused
Is the server running on host "192.168.99.100" and accepting TCP/IP connections on port 5432?

But then I map ports while running the docker container:

docker run  -p 8000:8000 -p 5432:5432 img

And I get the following error:

OperationalError: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request.

I don't know if I missed some configuration. But I added the IP address range 172.17.0.0/16 to pg_hba.conf and also configured PostreSQL to listen for connections on all IP, according to this solution: Allow docker container to connect to a local/host postgres database

EDIT

pg_hba.conf:

# IPv4 local connections:
host    all             all             127.0.0.1/32            trust
host    all             all             192.168.99.0/16         trust
host    all             all             172.17.0.0/16         trust