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Chapter 18: Deployment on Heroku (v0.18)

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Miguel Grinberg 2017-10-16 22:24:15 -07:00
parent 94b40cf4b7
commit 5cfb75def5
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4 changed files with 22 additions and 10 deletions
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1
Procfile Normal file
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@ -0,0 +1 @@
web: flask db upgrade; flask translate compile; gunicorn microblog:app

23
app/__init__.py
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@ -63,15 +63,20 @@ def create_app(config_class=Config):
mail_handler.setLevel(logging.ERROR)
app.logger.addHandler(mail_handler)
if not os.path.exists('logs'):
os.mkdir('logs')
file_handler = RotatingFileHandler('logs/microblog.log',
maxBytes=10240, backupCount=10)
file_handler.setFormatter(logging.Formatter(
'%(asctime)s %(levelname)s: %(message)s '
'[in %(pathname)s:%(lineno)d]'))
file_handler.setLevel(logging.INFO)
app.logger.addHandler(file_handler)
if app.config['LOG_TO_STDOUT']:
stream_handler = logging.StreamHandler()
stream_handler.setLevel(logging.INFO)
app.logger.addHandler(stream_handler)
else:
if not os.path.exists('logs'):
os.mkdir('logs')
file_handler = RotatingFileHandler('logs/microblog.log',
maxBytes=10240, backupCount=10)
file_handler.setFormatter(logging.Formatter(
'%(asctime)s %(levelname)s: %(message)s '
'[in %(pathname)s:%(lineno)d]'))
file_handler.setLevel(logging.INFO)
app.logger.addHandler(file_handler)
app.logger.setLevel(logging.INFO)
app.logger.info('Microblog startup')

4
config.py
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@ -7,9 +7,11 @@ load_dotenv(os.path.join(basedir, '.env'))
class Config(object):
SECRET_KEY = os.environ.get('SECRET_KEY') or 'you-will-never-guess'
SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL', '').replace(
'postgres://', 'postgresql://') or \
'sqlite:///' + os.path.join(basedir, 'app.db')
SQLALCHEMY_TRACK_MODIFICATIONS = False
LOG_TO_STDOUT = os.environ.get('LOG_TO_STDOUT')
MAIL_SERVER = os.environ.get('MAIL_SERVER')
MAIL_PORT = int(os.environ.get('MAIL_PORT') or 25)
MAIL_USE_TLS = os.environ.get('MAIL_USE_TLS') is not None

4
requirements.txt
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@ -36,3 +36,7 @@ urllib3==1.26.6
visitor==0.1.3
Werkzeug==2.0.1
WTForms==2.3.3
# requirements for Heroku
psycopg2==2.9.1
gunicorn==20.1.0