DjangoDigitalOceanSetUp.md

SSH SETUP

• copy and paste ssh-keygen on your local machine

initial server setup/user setup

• ssh root@your_server_ip
• adduser sammy
• usermod -aG sudo sammy - setup root privileges for the user
• ufw app list - setup a basic filewall
• ufw allow OpenSSH - setup a basic filewall
• ufw enable - setup a basic filewall
• ufw status
• rsync --archive --chown=sammy:sammy ~/.ssh /home/sammy

Django Setup

• sudo apt update
• sudo apt install python3-pip python3-dev libpq-dev postgresql postgresql-contrib nginx curl
• sudo apt update
• sudo apt install python-pip python-dev libpq-dev postgresql postgresql-contrib nginx curl

postgresql

• sudo -u postgres psql
• CREATE USER db_user WITH PASSWORD 'userpassword';
• CREATE DATABASE db_name OWNER db_user;
• ALTER ROLE db_user SET client_encoding TO 'utf8';
• ALTER ROLE db_user SET default_transaction_isolation TO 'read committed';
• ALTER ROLE db_user SET timezone TO 'UTC';
• GRANT ALL PRIVILEGES ON DATABASE icoach18th TO icoachdbuser;

installing pip and virtualenv

• sudo -H pip3 install --upgrade pip
• sudo -H pip3 install virtualenv

create project folder

• mkdir ~/myprojectdir
• cd ~/myprojectdir

create virtual environment

• within the project folder run
  • virtualenv myprojectenv
  • source myprojectenv/bin/activate - activate
  • pip install django gunicorn psycopg2-binary

running django

• sudo ufw allow 8000
• python manage.py makemigrations
• python manage.py migrate
• python manage.py runserver 0.0.0.0:8000

testing gunicord ability to host the django project

• gunicorn --bind 0.0.0.0:8000 icoach.wsgi

implementing a more robust way of starting and stopping the application server

• sudo nano /etc/systemd/system/gunicorn.socket
• copy and paste this code on the empty file

  Description=gunicorn socket
  
  [Socket]
  ListenStream=/run/gunicorn.sock
  
  [Install]
  WantedBy=sockets.target 
  

• ctrl +x to close and save
• sudo nano /etc/systemd/system/gunicorn.service
• copy and paste this code

  [Unit]
  Description=gunicorn daemon
  Requires=gunicorn.socket
  After=network.target
  
  [Service]
  User=sammy
  Group=www-data
  WorkingDirectory=/home/sammy/myprojectdir
  ExecStart=/home/sammy/myprojectdir/myprojectenv/bin/gunicorn \
         --access-logfile - \
         --workers 3 \
         --bind unix:/run/gunicorn.sock \
         myproject.wsgi:application
   [Install]
   WantedBy=multi-user.target
  

• sudo systemctl start gunicorn.socket
• sudo systemctl enable gunicorn.socket
• sudo systemctl status gunicorn.socket
• file /run/gunicorn.sock
• sudo journalctl -u gunicorn.socket
• sudo systemctl status gunicorn
• curl --unix-socket /run/gunicorn.sock localhost
• sudo systemctl status gunicorn
• sudo systemctl status gunicorn
• sudo systemctl daemon-reload
• sudo systemctl restart gunicorn

Configure Nginx to Proxy Pass to Gunicorn

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

       listen 80;
     server_name server_domain_or_IP;
  
     location = /favicon.ico { access_log off; log_not_found off; }
     location /static/ {
         root /home/sammy/myprojectdir;
     }
  
     location / {
         include proxy_params;
         proxy_pass http://unix:/run/gunicorn.sock;
     }
  }
  

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

• sudo nginx -t

• sudo systemctl restart nginx

• sudo ufw delete allow 8000

• sudo ufw allow 'Nginx Full'

• reference

• https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-20-04

• https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-ubuntu-20-04