爲什麼我的Django應用程序在本地工作，但不在Heroku上？

Question

My Django app在本地正常工作，有時推送到Heroku成功，但heroku日誌顯示錯誤（並且該應用程序無法在線加載）。似乎我的Procfile有問題（或者我的virtualenv，雖然我已經重新做了所有的事情來解決這個問題）。

我試過很多這樣的版本我Procfile：

web: python manage.py collectstatic --noinput; bin/gunicorn_django --workers=4 --bind=0.0.0.0:$PORT proj/prod_settings.py 

這：

web: python manage.py runserver 0.0.0.0:$PORT collectstatic --noinput 
--settings=proj/prod_settings.py 

這：

web: gunicorn bookfairy.wsgi.py 

，但我一直喜歡這些收到錯誤：

-foreman start pid 17199 result: no such option: --noinput 

-foreman start pid 17229 result: no such option: --workers 

-foreman start pid 17299 result: Could not import settings 'proj/prod_settings.py' (Is it on sys.path?): Import by filename is not supported. 
-Push failed: slug archive could not be created 
! [remote rejected] master -> master (pre-receive hook declined) 
error: failed to push some refs to heroku 
-foreman start pid 16943 result: Error: Usage is runserver [optional port number, or ipaddr:port] 
-Process exited with status 1 
State changed from starting to crashed 
-heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/robots.txt  host=bookfairy.herokuapp.com fwd="66.249.72.200" dyno= connect= service= status=503 bytes= 
-heroku[router]: at=error code=H14 desc="No web processes running" method=GET path=/robots.txt host=bookfairy.herokuapp.com fwd="173.199.115.131" dyno= connect= service= status=503 bytes= 

這：

File "manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line 
    utility.execute() 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv 
    self.execute(*args, **options.__dict__) 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 232, in execute 
    output = self.handle(*args, **options) 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 371, in handle 
    return self.handle_noargs(**options) 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 57, in handle_noargs 
    cursor = connection.cursor() 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/__init__.py", line 317, in cursor 
    cursor = self.make_debug_cursor(self._cursor()) 
    File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 177, in _cursor 
    self.connection = Database.connect(**conn_params) 
    File "/app/.heroku/python/lib/python2.7/site-packages/psycopg2/__init__.py", line 164, in connect 
    conn = _connect(dsn, connection_factory=connection_factory, async=async) 
psycopg2.OperationalError: could not connect to server: Connection refused 
    Is the server running on host "localhost" (127.0.0.1) and accepting 
    TCP/IP connections on port 5432? 

我能想到的，這個事情我已經試過：

• 拆卸和更換我的Procfile（資本，是）
• 做PIP凍結我的requirements.txt文件
• 增加了一個runtime.txt文件
• 啓動了一個動態代碼
• 隨後所有的Heroku的Django的指令
• 重新排列的我的目錄結構（和移動我wsgi.py文件相同的文件夾 requirements.txt）
• 試圖run_gunicorn（未知命令錯誤）
• PIP 安裝了所有的依賴項（兩次，包括Django，psycopg2, dj-database-url）
• heroku run python manage.py syncdb（服務器是否運行在主機「localhost」（127.0.0.1）並接受TCP/IP連接端口5432？）
• 已檢查Postgres和Heroku toolbelt inst allations

我將非常感謝您的幫助。

Answer 1

命令python manage.py runserver 0.0.0.0:$PORT collectstatic --noinput是無效的，你試圖在一箇中做兩件事。

python manage.py runserver 0.0.0.0:$PORT

python manage.py collectstatic --noinput

打散它們作爲單獨的命令，我建議把runserver在Procfile並在shell中運行collectstatic。