Heroku Django: Operational Fehler Connection refused

Question

ich folgende Fehlermeldung erhalten, wenn ich versuche, meine neueste Version Heroku zu implementieren:

could not connect to server: Connection refused 
    Is the server running on host "localhost" and accepting 
    TCP/IP connections on port 5432? 

Ich bin von sqlite3 Schale um PostgreSQL-Datenbanken zu verhindern, zurückgesetzt zu werden. Hier ist meine base.py:

import os 


# Build paths inside the project like this: os.path.join(BASE_DIR, ...) 
BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(__file__))) 



# Quick-start development settings - unsuitable for production 
# See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/ 

# SECURITY WARNING: keep the secret key used in production secret! 
SECRET_KEY = '4(%6tae$hut71^0us2z)fbs1bc&a+tjw76yi+f0-k-fxbu5#(i' 

# SECURITY WARNING: don't run with debug turned on in production! 
DEBUG = True 

ALLOWED_HOSTS = [] 


# Application definition 

INSTALLED_APPS = [ 
    'django.contrib.admin', 
    'django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    'webapp', 
    'tinymce' 
] 

MIDDLEWARE_CLASSES = [ 
    'django.middleware.security.SecurityMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.common.CommonMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware', 
    'django.middleware.clickjacking.XFrameOptionsMiddleware', 
] 

ROOT_URLCONF = 'mysite.urls' 

TEMPLATES = [ 
    { 
     'BACKEND': 'django.template.backends.django.DjangoTemplates', 
     'DIRS': [], 
     'APP_DIRS': True, 
     'OPTIONS': { 
      'context_processors': [ 
       'django.template.context_processors.debug', 
       'django.template.context_processors.request', 
       'django.contrib.auth.context_processors.auth', 
       'django.contrib.messages.context_processors.messages', 
      ], 
     }, 
    }, 
] 

WSGI_APPLICATION = 'mysite.wsgi.application' 

DATABASES = { 
    'default': { 
     'ENGINE': 'django.db.backends.postgresql_psycopg2', 
     'NAME': 'dbpt1duqgntocd',      
     'USER': 'lpdzvtukzvnfla', 
     'PASSWORD': 'oOjfBzWzF0cjGyGglZjZX_m7tx', 
     'HOST': '127.0.0.1',      # Empty for localhost through domain sockets or   '127.0.0.1' for localhost through TCP. 
     'PORT': '5432',      # Set to empty string for default. 
    } 
} 
# Password validation 
# https://docs.djangoproject.com/en/1.9/ref/settings/#auth-password-validators 

AUTH_PASSWORD_VALIDATORS = [ 
    { 
     'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', 
    }, 
    { 
     'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', 
    }, 
    { 
     'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator', 
    }, 
    { 
     'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator', 
    }, 
] 


# Internationalization 
# https://docs.djangoproject.com/en/1.9/topics/i18n/ 

LANGUAGE_CODE = 'en-us' 

TIME_ZONE = 'UTC' 

USE_I18N = True 

USE_L10N = True 

USE_TZ = True 


# Static files (CSS, JavaScript, Images) 
# https://docs.djangoproject.com/en/1.9/howto/static-files/ 

STATIC_ROOT = 'staticfiles' 
STATIC_URL = '/static/' 

STATICFILES_DIRS = (
    os.path.join(BASE_DIR, 'webapp/static'), 
) 

LOGIN_URL = '/login/' 

Hier ist meine local.py:

import os 

# Build paths inside the project like this: os.path.join(BASE_DIR, ...) 
BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(__file__))) 


# Quick-start development settings - unsuitable for production 
# See https://docs.djangoproject.com/en/1.9/howto/deployment/checklist/ 

# SECURITY WARNING: keep the secret key used in production secret! 
SECRET_KEY = '4(%6tae$hut71^0us2z)fbs1bc&a+tjw76yi+f0-k-fxbu5#(i' 

# SECURITY WARNING: don't run with debug turned on in production! 
DEBUG = True 

ALLOWED_HOSTS = [] 


# Application definition 

INSTALLED_APPS = [ 
    'django.contrib.admin', 
    'django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    'webapp', 
    'tinymce' 
] 

MIDDLEWARE_CLASSES = [ 
    'django.middleware.security.SecurityMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.common.CommonMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware', 
    'django.middleware.clickjacking.XFrameOptionsMiddleware', 
] 

ROOT_URLCONF = 'mysite.urls' 

TEMPLATES = [ 
    { 
     'BACKEND': 'django.template.backends.django.DjangoTemplates', 
     'DIRS': [], 
     'APP_DIRS': True, 
     'OPTIONS': { 
      'context_processors': [ 
       'django.template.context_processors.debug', 
       'django.template.context_processors.request', 
       'django.contrib.auth.context_processors.auth', 
       'django.contrib.messages.context_processors.messages', 
      ], 
     }, 
    }, 
] 

WSGI_APPLICATION = 'mysite.wsgi.application' 


DATABASES = { 
    'default': { 
     'ENGINE': 'django.db.backends.sqlite3', 
     'NAME': os.path.join(BASE_DIR, 'db.sqlite3'), 
    } 
} 



# Password validation 
# https://docs.djangoproject.com/en/1.9/ref/settings/#auth-password-validators 

AUTH_PASSWORD_VALIDATORS = [ 
    { 
     'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', 
    }, 
    { 
     'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', 
    }, 
    { 
     'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator', 
    }, 
    { 
     'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator', 
    }, 
] 


# Internationalization 
# https://docs.djangoproject.com/en/1.9/topics/i18n/ 

LANGUAGE_CODE = 'en-us' 

TIME_ZONE = 'UTC' 

USE_I18N = True 

USE_L10N = True 

USE_TZ = True 


# Static files (CSS, JavaScript, Images) 
# https://docs.djangoproject.com/en/1.9/howto/static-files/ 

STATIC_ROOT = 'staticfiles' 
STATIC_URL = '/static/' 

STATICFILES_DIRS = (
    os.path.join(BASE_DIR, 'webapp/static'), 
) 

LOGIN_URL = '/login/' 

Und hier ist mein init Py:

from .base import * 

try: 
    from .local import * 
    live = False 

except: 
    live = True 

if live: 
    from .production import * 

hier ist meine Datei hiearchy (ich weiß nicht, wie man es als Text macht):

Answer 1

Sie müssen die Datenbankverbindungsinformationen aus den DATABASE_URL Umgebungsvariablen zu erhalten. Per @ kwarunek, Verwenden Sie die Bibliothek dj-database-url Bibliothek() und folgen Sie den Anweisungen hier: https://devcenter.heroku.com/articles/getting-started-with-python#provision-a-database.

Heroku folgt den Designprinzipien mit 12 Faktoren (http://12factor.net) und behandelt die Datenbank als "Attached Service", dessen Konfiguration über die Umgebung bereitgestellt wird.