Использование существующего проекта Django в новом контейнере Docker

Я пытаюсь запустить контейнер Docker, используя проект Django в том же каталоге.

после этого учебника,
https://docs.docker.com/compose/django/#create-a-django-project,
можно использовать

docker-compose run web django-admin startproject newproject .

для запуска проекта из контейнера docker, определенного в docker-compose.в формате YML

version: '3'

services:
  db:
    image: postgres
  web:
    build: .
    #command: python3 manage.py runserver 0.0.0.0:8000
    command: bash -c "python manage.py makemigrations && python manage.py migrate && gunicorn things.wsgi -b 0.0.0.0:8000"
    volumes:
      - .:/code
    expose:
      - "8000"
    depends_on:
      - db
  nginx:
    image: nginx:latest
    container_name: NGINXDOCKERNAME
    ports:
      - "8000:8000"
    volumes:
      - .:/code
      - ./config/nginx:/etc/nginx/conf.d
    ports:
      - "8000:8000"
    depends_on:
      - web

и dockerfile

FROM python:3
ENV PYTHONUNBUFFERED 1
RUN mkdir /code
WORKDIR /code
ADD requirements.txt /code/
RUN pip install -r requirements.txt
ADD . /code/
VOLUME /code

как вы используете Джанго-админ startproject newproject . снаружи контейнер (т. е. из командной строки docker-machine) и затем скопировать проект в контейнер?

теперь, если я запускаю проект внутри контейнера, сервер запускается, и я вижу свой проект на правильном Порту, но если я запускаю проект вне контейнера (но в том же каталоге локально), контейнеры web и nginx не запускаются правильно.

я запускаю docker-machine на windows 10 версии 1709.

вывод из веб-контейнера запуск ниже с последующим выводом сервера по запросу.

Ура

Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
web_1 | self.connect()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 189, in connect
web_1 | self.connection = self.get_new_connection(conn_params)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/postgresql/base.py", line 176, in get_new_connection
web_1 | connection = Database.connect(**conn_params)
web_1 | File "/usr/local/lib/python3.6/site-packages/psycopg2/init.py", line 130, in connect
web_1 | conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
web_1 | psycopg2.OperationalError: could not connect to server: Connection refused
web_1 | Is the server running on host "db" (172.19.0.2) and accepting
web_1 | TCP/IP connections on port 5432?
web_1 |
web_1 |
web_1 | The above exception was the direct cause of the following exception:
web_1 |
web_1 | Traceback (most recent call last):
web_1 | File "manage.py", line 22, in
web_1 | execute_from_command_line(sys.argv)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/management/init.py", line 364, in execute_from_command_line
web_1 | utility.execute()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/management/init.py", line 356, in execute
web_1 | self.fetch_command(subcommand).run_from_argv(self.argv)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
web_1 | self.execute(*args, **cmd_options)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
web_1 | output = self.handle(*args, **options)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/management/commands/makemigrations.py", line 110, in handle
web_1 | loader.check_consistent_history(connection)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/migrations/loader.py", line 282, in check_consistent_history
web_1 | applied = recorder.applied_migrations()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 65, in applied_migrations
web_1 | self.ensure_schema()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 52, in ensure_schema
web_1 | if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 254, in cursor
web_1 | return self._cursor()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 229, in _cursor
web_1 | self.ensure_connection()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
web_1 | self.connect()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/utils.py", line 94, in exit
web_1 | six.reraise(dj_exc_type, dj_exc_value, traceback)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
web_1 | raise value.with_traceback(tb)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
web_1 | self.connect()
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 189, in connect
web_1 | self.connection = self.get_new_connection(conn_params)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/backends/postgresql/base.py", line 176, in get_new_connection
web_1 | connection = Database.connect(**conn_params)
web_1 | File "/usr/local/lib/python3.6/site-packages/psycopg2/init.py", line 130, in connect
web_1 | conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
web_1 | django.db.utils.OperationalError: could not connect to server: Connection refused
web_1 | Is the server running on host "db" (172.19.0.2) and accepting
web_1 | TCP/IP connections on port 5432?


выход сервера


NGINXDOCKERNAME | 2017/11/21 19:56:28 [error] 5#5: *1 connect() failed (113: No route to host) while connecting to upstream, client: 192.168.99.1, server: localhost, request: "GET /polls/ HTTP/1.1", upstream: "http://172.19.0.3:8000/polls/", host: "192.168.99.100:8000"