# 部屬 Django 到 Heroku

# Create Heroku Application

Register Your Heroku

# in your dashbroad create new app

and give your app

1. app name(can not use Big alphabet)
2. region

# Install Heroku CLI

# Install PostgreSQL

Why we should install PostgreSQL
why we cannot use sqlite3

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heroku ps:scale web=1

# Because Heroku not supported sqlite

add-ons

# Create python virtual env

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pip install virtualenv
D:
virtualenv linebot
cd linebot
Scripts\activate

# install pip module

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pip install django
pip install dj-database-url //heroku處理DB
pip insyall dj-static //heroku處理靜態檔案
pip install gunicorn //heroku伺服器輔助模組
pip install psycopg2
pip install requests

# show virtualenv module

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pip list

# create requirements.txt

create it in mysite folder

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cd mysite
pip freeze >requirements.txt

# create Procfile

create a “Procfile” in project folder and type the followings command in “Procfile”

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web: gunicorn --pythonpath mysite mysite.wsgi

web is meaning to open webapp
gunicorn --pythonpath mysite mysite.wsgi will according mysite folder urls.py setting to setup default page

# Create runtime.txt

this file is tell heroku which version of python we use(! that version must heroku supported)

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python-3.9.7

# Create prod_settings.py

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from .settings import *#import my setting
STATIC_ROOT = 'staticfiles' #setup static file directory
ALLOWED_HOSTS=["*"]#allow all host
DEBUG=False#close debug mode
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')#setting HTTPS connect function

# Create .gitignore

create it in mysite folder

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*.pyc
__pycache__
staticfiles
````

----

##### edit wsgi.py

```python=
import os
from django.core.wsgi import get_wsgi_application
from dj_static import Cling
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')
application = get_wsgi_application()

# end up virtualenv mode

and login heroku

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heroku login

# Git

# Initailize project

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git init
heroku git:remote -a <herokuapp_name>

# set upo heroku use mysite folder prod_settings.py as website setting

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heroku config:set DJANGO_SETTINGS_MODULE=mysite.prod_settings

# add project to repository

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git add .
git commit -am "init commit
git push heroku master