Django app deployment on Ubuntu

Global install

sudo apt-get install apache2 python3-django libapache2-mod-wsgi-py3 virtualenv

### MySQL
sudo apt-get install mysql-server libmysqlclient-dev
mysql_secure_installation

Virtual env setup

Not tested
sudo apt-get install python3-venv (doesn't need. )
sudo apt-get install python3-dev

sudo a2enmod wsgi
sudo systemctl restart apache2

Make Python Virtual Environment

### Install and create venv 
sudo apt-get install python3-pip
pip3 install virtualenv

### Go to desired location to create venv
sudo virtualenv venv -p python3

Activate venv

source venv/bin/active

### Examples
(venv) pip install django
(venv) pip install mysqlclient

Install all the requirements

pip install -r requirements.txt

### How to get requirements
pip freeze > requirements.txt

Clone your Git project for deployment

sudo apt-get install git

### config your account
git config --global user.name "your.user.name"
git config --global user.email "your@email.com"

### Go to desired location and clone from Git
git clone https://github.com/your/repository .

Pull your Git project (good for development)

git init
git remote add origin https://github.com/your project.git

git reset --hard origin/master
git pull origin master

# fatal: remote origin already exists
git remote -v
git remote rm origin

# Must restart apache for changes to take effect
sudo systemctl restart apache2

apache 000-default.conf virtualhost

<VirtualHost *:88>
        ServerAdmin webmaster@localhost
        ServerName hostname.com
#       DocumentRoot /var/www/test

        Alias /static /var/www/django/test.com/static

        <Directory "/var/www/django/test.com/static">
                Options FollowSymLinks
                Order allow,deny
                Allow from all
                Require all granted
        </Directory>

        Alias /media /var/www/django/test.com/media

        <Directory "/var/www/django/test.com/media">
                Options FollowSymLinks
                Order allow,deny
                Allow from all
                Require all granted
        </Directory>

        WSGIScriptAlias / /path/to/wsgi.py

        WSGIDaemonProcess domain.sg python-home=/venv python-path=/path/to/manage.py/folder

        WSGIProcessGroup domain.sg

        <Directory /path/to/wsgi.py/folder>
                <Files wsgi.py>
                        Require all granted
                </Files>
        </Directory>
</VirtualHost>

manage.py checklist

(venv) $ python manage.py check
(venv) $ python manage.migrate
(venv) $ python manage.py createsuperuser
(venv) $ python manage.py runserver 0.0.0.0:8000
(venv) $ python manage.py collectstatic

www-data should have access to the application folder

sudo chown -R www-data:www-data /var/www/test

Reload apache

sudo apachectl configtest
sudo systemctl restart apache2

##### Troubleshooting #####

### Disable 000-default.conf
sudo a2dissite 000-default.conf

### Enable site django.conf 
sudo a2ensite django.conf

### Python alternatives
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6

### Set
sudo update-alternatives --set python /usr/bin/python3.6

Gmail smtp

### Turn on Less secure app access
https://myaccount.google.com/lesssecureapps

### DisplayUnlockCaptcha (Did not work for me)
https://accounts.google.com/DisplayUnlockCaptcha

Error: “Could not reliably determine the server’s fully qualified domain name”

### edit
sudo nano /etc/apache2/apache2.conf

### add ServerName
ServerName Django

Environment variable

sudo nano .profile

### Set env variable for ID & Password
export EMAIL_USER='xyz@gmail.com'
export EMAIL_PASSWORD='password'

### Test environment variable
echo $EMAIL_USER
echo $EMAIL_PASSWORD