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Service24 deployment

Service24 deployment VPS on staging or production server without CI/CD and Docker container.

Please follow the below instructions:
Install the Packages from the Ubuntu Repositories
sudo apt-get update
sudo apt-get install python3-pip python3-dev libpq-dev postgresql postgresql-contrib nginx
sudo apt install python3-virtualenv
sudo apt install nginx
Create the PostgreSQL Database and User
sudo -u postgres psql
CREATE DATABASE service;
CREATE USER dev WITH PASSWORD '12345';
ALTER ROLE dev SET client_encoding TO 'utf8';
ALTER ROLE dev SET default_transaction_isolation TO 'read committed';
ALTER ROLE dev SET timezone TO 'UTC';
GRANT ALL PRIVILEGES ON DATABASE service TO dev;
\q
Create a Python Virtual Environment & run project
git clone https://github.com/mbrsagor/service24
cd service24
git checkout develop
virtualenv venv --python=python3.10
source venv/bin/activate
pip install -r requirements.txt
If not install gunicorn
pip install django gunicorn
Configuration settings.py file:
SECRET_KEY='django-insecure-%4#+g@c%hi=7&)x&c*tu6n)nbpgg%31!y95x2aa@q!$y+v(_%7'
DEBUG=True
ALLOWED_HOSTS='ID or Domain name'

# Database config
DB_HOST=localhost
DB_PORT=5432
DB_NAME=service24
DB_USERNAME=dev
DB_PASSWORD=12345
Complete Initial Project Setup
./manage.py makemigrations
./manage.py migrate
./manage.py createsuperuser
./manage.py collectstatic
sudo ufw allow 8000
Testing Gunicorn’s Ability to Serve the Project.
gunicorn --bind 0.0.0.0:8000 service24.wsgi
Deactivated virtualenv
deactivate

Create a Gunicorn systemd Service File

sudo nano /etc/systemd/system/gunicorn.service
[Unit]
Description=gunicorn daemon
After=network.target

[Service]
User=ubuntu
Group=ubuntu
WorkingDirectory=/home/ubuntu/service24
ExecStart=/home/ubuntu/service24/venv/bin/gunicorn --access-logfile - --workers 3 --bind unix:/home/ubuntu/service24/service24.sock service24.wsgi:application

[Install]
WantedBy=multi-user.target
sudo systemctl start gunicorn
sudo systemctl enable gunicorn
Check for the Gunicorn Socket File
sudo systemctl status gunicorn

Next, check for the existence of the service24.sock file within your project directory:

ls

If the systemctl status command indicated that an error occurred or if you do not find the service24.sock file in the directory, it’s an indication that Gunicorn was not able to start correctly. Check the Gunicorn process logs by typing:

sudo journalctl -u gunicorn

If you make changes to the /etc/systemd/system/gunicorn.service file, reload the daemon to reread the service definition and restart the Gunicorn process by typing:

sudo systemctl daemon-reload
sudo systemctl restart gunicorn
Configure Nginx to Proxy Pass to Gunicorn
sudo nano /etc/nginx/sites-available/service24
server {
    listen 80;
    server_name 52.221.195.167;

    location = /favicon.ico { access_log off; log_not_found off; }
    location /static/ {
        root /home/ubuntu/service24;
    }

    location /media/ {
        root /home/ubuntu/service24;
    }

    location / {
        include proxy_params;
        proxy_pass http://unix:/home/ubuntu/service24/service24.sock;
    }
}
sudo ln -s /etc/nginx/sites-available/service24 /etc/nginx/sites-enabled
sudo nginx -t
sudo systemctl restart nginx
sudo ufw delete allow 8000
sudo ufw allow 'Nginx Full'
Troubleshooting Nginx and Gunicorn:
sudo tail -F /var/log/nginx/error.log