Docker-compose:nginx不适用于django和gunicorn

Question

我一直在尝试在docker-compose中设置一个环境,其中有几个容器:

• Django的
• Nginx的
• Postgres的
• DbData
• 存储

我使用了以下配置:

 app:
  restart: always
  build: src
  expose:
    - "8000"
  links:
    - postgres:postgres
  volumes_from:
    - storage_files_1
  env_file: .env
  command: gunicorn barbell.wsgi:application \
            -b 0.0.0.0:8000 -w 4

nginx:
  restart: always
  build: nginx
  ports:
    - "80:80"
    - "443:443"
  volumes_from:
    - storage_files_1
  links:
    - app:app

postgres:
  restart: always
  image: postgres:latest
  volumes_from:
    - storage_data_1
  ports:
    - "5432:5432"

我的启用nginx站点的配置文件如下所示:

server {

    listen 80;
    server_name localhost;
    error_log /var/log/nginx/error.log;
    access_log /var/log/nginx/access.log;

    location /static {
        alias /static/;
        autoindex on;
    }

    location / {
         proxy_pass http://app:8000;
         proxy_set_header X-Forwarded-Host $server_name;
         proxy_set_header X-Real-IP $remote_addr;
         add_header P3P 'CP="ALL DSP COR PSAa PSDa OUR NOR ONL UNI COM NAV"';
    }
}

并且它不起作用 - nginx总是返回502,但完美地提供静态文件.我也尝试过与uwsgi相同的设置,没有运气.但是,当我将Django与nginx结合起来并从同一个容器中提供所有内容时,一切正常(同样,在uwsgi和gunicorn上).

知道我错过了什么吗？

更新

这是nginx日志:

*1 connect() failed (111: Connection refused) while connecting to upstream,
client: 172.17.42.1, server: 0.0.0.0, request: "GET / HTTP/1.1", upstream:   
"http://172.17.1.75:8000/", host: "localhost"

Answer 1

原来罪魁祸首就是Gunicorn。将其配置放入文件中解决了该问题。

Gunicorn_config.py 放在与 manage.py 相同的文件夹中：

bind = "0.0.0.0:8000"
loglevel = "INFO"
workers = "4"
reload = True

errorlog = "/var/log/gunicorn/error.log"
accesslog = "/var/log/gunicorn/access.log"

以及 docker-compose.yml 中的一些更改：

app:
  restart: always
  build: src
  expose:
    - "8000"
  links:
    - postgres:postgres
  volumes_from:
    - storage_files_1
  env_file: .env
  command: gunicorn --config=gunicorn_config.py barbell.wsgi:application

现在它可以正常工作了。