Docker容器中的Django + uWSGI / nginx - ImportError：没有名为.wsgi的模块

Question

这是一个古老的Django（v1.3.7）应用程序，我正在迁移到Docker设置。 基本框架来自这个dockerfiles repo 。

我可以使用Django内置的开发服务器（ ./manage.py runserver ）使应用程序正常运行，但我希望在生产中使用uWSGI / Nginx。

当我从容器中的bash提示符调用它时，我可以让uwsgi运行没有错误： uwsgi --http :8000 --wsgi-file /home/docker/code/siteweb/glrimon.wsgi但是，当我尝试从Django shell导入我的wsgi文件我得到相同的导入错误。

这是我启动容器时记录的内容（通过supervisord调用/usr/local/bin/uwsgi --ini /home/docker/code/uwsgi.ini ）：

[uWSGI] getting INI configuration from /home/docker/code/uwsgi.ini
*** Starting uWSGI 2.0.15 (64bit) on [Tue May  9 13:35:14 2017] ***
compiled with version: 5.4.0 20160609 on 05 May 2017 18:06:55
os: Linux-3.16.0-77-generic #99~14.04.1-Ubuntu SMP Tue Jun 28 19:17:10 UTC 2016
nodename: 222b58f8d3ea
machine: x86_64
clock source: unix
detected number of CPU cores: 8
current working directory: /
detected binary path: /usr/local/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
uWSGI running as root, you can use --uid/--gid/--chroot options
*** WARNING: you are running uWSGI as root !!! (use the --uid flag) ***
chdir() to /home/docker/code/siteweb/
your memory page size is 4096 bytes
detected max file descriptor number: 524288
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uwsgi socket 0 bound to UNIX address /home/docker/code/app.sock fd 3
Python version: 2.7.12 (default, Nov 19 2016, 06:48:10)  [GCC 5.4.0 20160609]
2017/05/09 13:35:14 [debug] 11#11: epoll add event: fd:6 op:1 ev:00002001
2017/05/09 13:35:14 [debug] 12#12: epoll add event: fd:6 op:1 ev:00002001
2017/05/09 13:35:14 [debug] 11#11: epoll del event: fd:6 op:2 ev:00000000
Python main interpreter initialized at 0x8f11c0
python threads support enabled
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 415360 bytes (405 KB) for 8 cores
*** Operational MODE: preforking+threaded ***
added /usr/local/lib/python2.7/dist-packages/ to pythonpath.
added /usr/lib/python2.7/ to pythonpath.
added ./siteweb to pythonpath.
ImportError: No module named glrimon.wsgi
unable to load app 0 (mountpoint='') (callable not found or import error)
*** no app loaded. going in full dynamic mode ***
*** uWSGI is running in multiple interpreter mode ***

这是我的uwsgi.ini文件：

[uwsgi]
# this config will be loaded if nothing specific is specified
# load base config from below
ini = :base

# %d is the dir this configuration file is in
socket = %dapp.sock
master = true
processes = 4
threads = 2

#logging
logto=/var/log/uwsgi.log

[dev]
ini = :base
# socket (uwsgi) is not the same as http, nor http-socket
socket = :8001


[local]
ini = :base
http = :8000


[base]
# chdir to the folder of this config file, plus app/website
chdir = %dsiteweb/
# allow anyone to connect to the socket. This is very permissive
chmod-socket=666
# explicitly set python path
pythonpath = /usr/local/lib/python2.7/dist-packages
pythonpath = /usr/lib/python2.7
pythonpath = ./siteweb
# also referencing here: http://uwsgi-docs.readthedocs.io/en/latest/WSGIquickstart.html#deploying-django
env = DJANGO_SETTINGS_MODULE=siteweb.settings
# load the module from wsgi.py, it is a python path from
# the directory above.
module=glrimon.wsgi:application

这是我的wsgi文件的样子：

import sys
import os

sys.path.append(os.path.dirname(os.path.dirname(__file__)))
sys.path.append(os.path.dirname(__file__))

os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'

import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()

Dockerfile：

FROM ubuntu:16.04

MAINTAINER Dockerfiles

# Install required packages and remove the apt packages cache when done.

RUN apt-get update && \
    apt-get upgrade -y && \
    apt-get install -y \
    git \
    # for python package lxml
    libxml2-dev libxslt1-dev zlib1g-dev \
    # for python package PIL
    libtiff5-dev libjpeg8-dev \
    # for python package psycopg2
    build-essential libpq-dev \
    # for geodjango
    libgeos-dev \
    python \
    python-dev \
    python-setuptools \
    python-pip \
    nginx \
    supervisor \
    sqlite3 && \
    pip install -U pip setuptools && \
    rm -rf /var/lib/apt/lists/*

# install uwsgi now because it takes a little while
RUN pip install uwsgi

# setup uwsgi logging directory
RUN mkdir -p /var/log/uwsgi

# forward request and error logs to docker log collector
RUN ln -sf /dev/stdout /var/log/nginx/access.log \
    && ln -sf /dev/stderr /var/log/nginx/error.log \
    && ln -sf /dev/stdout /var/log/uwsgi.log
#    && ln -sf /dev/stdout /var/log/uwsgi/req.log

# setup all the configfiles
RUN echo "daemon off;" >> /etc/nginx/nginx.conf
COPY nginx-app.conf /etc/nginx/sites-available/default
COPY supervisor-app.conf /etc/supervisor/conf.d/

# COPY requirements.txt and RUN pip install BEFORE adding the rest of your code, this will cause Docker's caching mechanism
# to prevent re-installinig (all your) dependencies when you made a change a line or two in your app.

COPY requirements.txt /home/docker/code/
RUN pip install -r /home/docker/code/requirements.txt
# workaround for missing distribution for pkg_resources
# ref: http://stackoverflow.com/questions/7446187/no-module-named-pkg-resources
#RUN pip install --upgrade setuptools

# deal with Geodjango GEOSexception error
# (ref: http://stackoverflow.com/a/19811665/6072959)
RUN sed -i 's/d+)\$/d+)\.\*\$/g' \
    /usr/local/lib/python2.7/dist-packages/django/contrib/gis/geos/libgeos.py

# add (the rest of) our code
# skip this step since the code is actually referenced via
# symlink since it's gigantic
# connect a volume to the code during docker run instead
COPY . /home/docker/code/

WORKDIR /home/docker/code

# install django, normally you would remove this step because your project would already
# be installed in the code/siteweb/ directory
#RUN django-admin.py startproject website /home/docker/code/siteweb/

EXPOSE 80
CMD ["supervisord", "-n"]

任何想法/想法总是受到赞赏。

Answer 1

两个想法。

1. 我想知道pythonpath = ./siteweb是否与初始当前工作目录相关？ 当您手动运行它时，您是否已经在/home/docker/code ？ 尝试将以下内容添加到Dockerfile ：

    WORKDIR /home/docker/code 

2. 模块是ini文件的正确选项吗？ 根据uwsgi-docs.readthedocs.io/en/latest/WSGIquickstart.html，如果你在命令行上使用--wsgi-file /home/docker/code/siteweb/glrimon.wsgi你可能也应该有wsgi文件ini文件中的/home/docker/code/siteweb/glrimon.wsgi。 他们的例子也有`module = django.core.handlers.wsgi：WSGIHandler（）。 但是因为你正在加载一个wsgi文件，所以可能不需要它（它可能是一个或另一个）。