Deployment: Standalone App

OTF Application Installation Process

Standalone Server/VPS

This process was tested on Ubuntu 18.04LTS. It should work on any Debian-based system.

Get the code

git clone git@github.com:OpenTechFund/opentech.fund.git [your-site-directory]

Basic installation steps.

These are the basic packages needed before you can start the installation process.

• python3-pip - install using sudo apt-get install python3-pip
• postgresql (version 10.9) use sudo apt-get install postgresql postgresql-contrib
• to install nodejs (version v12.5.0), use nodesource. Add the PPA to your sources list by running this script: curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash - then sudo apt-get install nodejs`
• gulp (version 4.0.2 CLI version 2.2.0) installed using sudo npm install -g gulp

Then, you'll want to set up a virtual environment: virtualenv --python=/usr/bin/python3 venv/opentech and source venv/opentech/bin/activate

Next, install the required packages using pip install -r requirements.txt. You can also install stellar and Werkzeug, but they are not required in production.

• pip install stellar
• pip install'Werkzeug

Post-install setup

You'll want to install npm, npm install, and then deploy gulp using gulp deploy.

Postgresql is the database used. Start the server you installed above using sudo service postgresql start, then log into the postgres superuser, sudo su - postgres and enter the postgresql cli with psql. In the CLI, use these commands:

• CREATE DATABASE opentech;
• CREATE USER [linux username] WITH SUPERUSER LOGIN
• Also, make sure that this user has trust access in pg_hba.conf.

These settings can be restricted later as required.

Running the app

First, choose the correct settings - the possibilities are 'dev', 'test', and 'production'. If you're going to set this up in a production setting, then 'production' is the one to use: export DJANGO_SETTINGS_MODULE=opentech.settings.production. The application needs a secret key: export SECRET_KEY='SOME SECRET KEY HERE'.

To begin with, set the export SECURE_SSL_REDIRECT=false to prevent SSL redirect. When you've set up SSL for your server, you can change that setting later.

Then use the following commands to test run the server:

• python manage.py collectstatic --noinput
• python manage.py createcachetable
• python manage.py migrate --noinput
• python manage.py clear_cache --cache=default --cache=wagtailcache
• python manage.py createsuperuser
• python manage.py runserver (runs development server at http://127.0.0.1:8000)

You should see the home page of the server. That's great. We can then take the next steps.

Deploy with nginx/gunicorn

Make sure gunicorn is installed (it should be). Do a test run with gunicorn: gunicorn --bind 0.0.0.0:<some port> opentech.wsgi:application This might not work. It's OK if it doesn't work - you can go on anyway.

You need to add a file: /etc/systemd/system/gunicorn.socket. It should have this content:

[Unit]
Description=gunicorn service
Requires=gunicorn.socket
After=network.target

[Service]
User=ubuntu
Group=www-data
WorkingDirectory=/path/to/application/
ExecStart=/path/to/virtual/environment/bin/gunicorn --access-logfile - --workers 3 --bind unix:/path/to/application/gunicorn.sock opentech.wsgi:application -e DJANGO_SETTINGS_MODULE=opentech.settings.production -e SECRET_KEY='SOME SECRET KEY HERE'

[Install]
WantedBy=multi-user.target

You can enable and start the socket by using sudo systemctl enable gunicorn.socket, sudo systemctl start gunicorn.socket. You can check status of socket using sudo systemctl status gunicorn.socket. You can test the status of gunicorn: sudo systemctl status gunicorn.

Set up DNS so that server.domain and apply.server.domain point to the server you've installed the application. Install nginx if you haven't already (sudo apt-get install nginx). You'll need to add two new config files for nginx in /etc/nginx/sites-available:

public

server {
    listen 80;
    server_name server.domain;

    location ^~/media/(.*)$ {
        alias /path/to/application/opentech/media/;
    }

    location ^~/static/(.*)$ {
        alias /path/to/application/opentech/static/;
    }

    location / {
        include proxy_params;
        proxy_pass http://unix:/run/gunicorn.sock;
    }

}

apply

server {
   listen 80;
   server_name apply.server.domain;

   location ^~/media/(.*)$ {
      alias /path/to/application/opentech/media/;
   }

   location ^~/static/(.*)$ {
      alias /path/to/application/opentech/static/;
   }

   location / {
      include proxy_params;
      proxy_pass http://unix:/run/gunicorn.sock;
    }
}

Then, symlink these to sites-enabled: sudo ln -s /etc/nginx/sites-available/public /etc/nginx/sites-enabled && sudo ln -s /etc/nginx/sites-available/apply /etc/nginx/sites-enabled. Then restart nginx using sudo systemctl restart nginx.

You should then be able to access your application at http://server.domain and http://apply.server.domain.