python - Django 服务器不会在 Docker-Compose 中启动

Question

我正在尝试将 Django 项目移植到 Docker-Compose 以进行部署。

我在网上学习了各种教程，据我了解，我的应用程序需要的唯一服务是 Django 和 Postgres。这是我的 docker-compose.yml 文件:

db:
  image: postgres:latest
  ports:
    - "5432"
  environment:
    POSTGRES_PASSWORD: postgres
    POSTGRES_USER: postgres
web:
  build: .
  ports:
   - "8000:8000"
  volumes:
   - .:/code
  links:
   - db
  command: python3 manage.py runserver 0.0.0.0:8000

我已经在我的 virtualenv 中本地测试了 python 命令并且服务器启动了，但是，当我在应用程序副本所在的文件夹中运行“docker-compose up”时，我得到了这个输出:

Creating hpr_db_1
Creating hpr_web_1
Attaching to hpr_db_1, hpr_web_1
db_1  | The files belonging to this database system will be owned by user "postgres".
db_1  | This user must also own the server process.
db_1  | 
db_1  | The database cluster will be initialized with locale "en_US.utf8".
db_1  | The default database encoding has accordingly been set to "UTF8".
db_1  | The default text search configuration will be set to "english".
db_1  | 
db_1  | Data page checksums are disabled.
db_1  | 
db_1  | fixing permissions on existing directory /var/lib/postgresql/data ... ok
db_1  | creating subdirectories ... ok
db_1  | selecting default max_connections ... 100
db_1  | selecting default shared_buffers ... 128MB
db_1  | selecting dynamic shared memory implementation ... posix
db_1  | creating configuration files ... ok
db_1  | creating template1 database in /var/lib/postgresql/data/base/1 ... ok
db_1  | initializing pg_authid ... ok
db_1  | initializing dependencies ... ok
web_1 | /usr/local/lib/python3.4/importlib/_bootstrap.py:321: RemovedInDjango19Warning: django.utils.importlib will be removed in Django 1.9.
web_1 |   return f(*args, **kwds)
web_1 | 
db_1  | creating system views ... ok
db_1  | loading system objects' descriptions ... ok
db_1  | creating collations ... ok
db_1  | creating conversions ... ok
db_1  | creating dictionaries ... ok
db_1  | setting privileges on built-in objects ... ok
db_1  | creating information schema ... ok
db_1  | loading PL/pgSQL server-side language ... ok
web_1 | /usr/local/lib/python3.4/importlib/_bootstrap.py:321: RemovedInDjango19Warning: django.utils.importlib will be removed in Django 1.9.
web_1 |   return f(*args, **kwds)
web_1 | 
db_1  | vacuuming database template1 ... ok
db_1  | copying template1 to template0 ... ok
db_1  | copying template1 to postgres ... ok
db_1  | syncing data to disk ... ok
db_1  | 
db_1  | Success. You can now start the database server using:
db_1  | 
db_1  |     postgres -D /var/lib/postgresql/data
db_1  | or
db_1  |     pg_ctl -D /var/lib/postgresql/data -l logfile start
db_1  | 
db_1  | 
db_1  | WARNING: enabling "trust" authentication for local connections
db_1  | You can change this by editing pg_hba.conf or using the option -A, or
db_1  | --auth-local and --auth-host, the next time you run initdb.
db_1  | waiting for server to start....LOG:  database system was shut down at 2015-11-06 15:18:39 UTC
db_1  | LOG:  MultiXact member wraparound protections are now enabled
db_1  | LOG:  autovacuum launcher started
db_1  | LOG:  database system is ready to accept connections
db_1  |  done
db_1  | server started
db_1  | ALTER ROLE
db_1  | 
db_1  | 
db_1  | /docker-entrypoint.sh: ignoring /docker-entrypoint-initdb.d/*
db_1  | 
db_1  | LOG:  received fast shutdown request
db_1  | LOG:  aborting any active transactions
db_1  | LOG:  autovacuum launcher shutting down
db_1  | waiting for server to shut down....LOG:  shutting down
db_1  | LOG:  database system is shut down
db_1  |  done
db_1  | server stopped
db_1  | 
db_1  | PostgreSQL init process complete; ready for start up.
db_1  | 
db_1  | LOG:  database system was shut down at 2015-11-06 15:18:41 UTC
db_1  | LOG:  MultiXact member wraparound protections are now enabled
db_1  | LOG:  database system is ready to accept connections
db_1  | LOG:  autovacuum launcher started

没有关于服务器启动或类似信息的消息，我知道由于有关弃用的警告消息，它正在编译我的代码，但我在这里很困惑。谁能看到我的错误？

更新:

仔细检查并更改 DJango 服务器的端口后，我发现访问该网页会返回“加载页面时重置与服务器的连接”错误。这表明正在该页面上设置某些内容。但我仍然无法访问它。我知道 Docker-Compose 工作正常，因为教程中的简单 Django 应用程序工作正常。

Answer 1

您是否EXPOSE django 容器的端口？