deploy django on nginx gunicorn

1. Install required packages:

sudo apt-get update
sudo apt-get install python3-pip python3-dev libpq-dev postgresql postgresql-contrib nginx

1. Create a virtual environment:

sudo apt-get install virtualenv
mkdir ~/myproject
cd ~/myproject
virtualenv myprojectenv
source myprojectenv/bin/activate

1. Install Django and Gunicorn:

pip install django gunicorn

1. Create a Django project:

django-admin startproject myproject
cd myproject

1. Configure Django settings (update ALLOWED_HOSTS, DEBUG, DATABASES):

# myproject/settings.py
ALLOWED_HOSTS = ['your_domain_or_server_ip', 'localhost']
DEBUG = False

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'your_db_name',
        'USER': 'your_db_user',
        'PASSWORD': 'your_db_password',
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

1. Migrate the database:

python manage.py migrate

1. Create a superuser (optional):

python manage.py createsuperuser

1. Collect static files:

python manage.py collectstatic

1. Test the Gunicorn server:

gunicorn myproject.wsgi:application

1. Configure Gunicorn to run as a systemd service:

sudo nano /etc/systemd/system/myproject.service

Add the following content:

[Unit]
Description=gunicorn daemon for myproject
After=network.target

[Service]
User=your_linux_username
Group=www-data
WorkingDirectory=/path/to/your/myproject
ExecStart=/path/to/your/myprojectenv/bin/gunicorn --workers=3 --bind unix:/path/to/your/myproject/myproject.sock myproject.wsgi:application

[Install]
WantedBy=multi-user.target

1. Start and enable the Gunicorn systemd service:

sudo systemctl start myproject
sudo systemctl enable myproject

1. Configure Nginx:

sudo nano /etc/nginx/sites-available/myproject

Add the following content:

server {
    listen 80;
    server_name your_domain_or_server_ip;

    location = /favicon.ico { access_log off; log_not_found off; }
    location /static/ {
        root /path/to/your/myproject;
    }

    location / {
        include proxy_params;
        proxy_pass http://unix:/path/to/your/myproject/myproject.sock;
    }
}

1. Create a symbolic link to the Nginx configuration:

sudo ln -s /etc/nginx/sites-available/myproject /etc/nginx/sites-enabled

1. Test Nginx configuration and restart Nginx:

sudo nginx -t
sudo systemctl restart nginx

1. Adjust firewall settings if needed:

sudo ufw allow 80
sudo ufw allow 8000  # If you want to access the Django development server
sudo ufw enable

1. Update your DNS records if using a domain name.

Done! Your Django application should now be deployed with Nginx and Gunicorn.