ruby cgi server setup

setup.sh

#!/bin/bash

set -e

# Set your gems, username and password
gems="bundler"
username="username"
password="password"

apt update -y
apt upgrade -y
apt install -y ruby2.3 ruby2.3-dev nginx fcgiwrap apache2-utils

echo "${password}" | htpasswd -ic /etc/nginx/.htpasswd "${username}"

gem install "${gems}"

mkdir -p /srv/website.com/static
mkdir -p /srv/website.com/app

cat << EOF | tee /etc/nginx/sites-available/default
server {
    server_name "";

    listen 80;
    listen [::]:80 default_server ipv6only=on;
    root /srv/website.com/static;

    location /app/ {
        auth_basic "Protected";
        auth_basic_user_file /etc/nginx/.htpasswd;

        fastcgi_pass unix:/var/run/fcgiwrap.socket;

        fastcgi_param SCRIPT_FILENAME /srv/website.com/\$fastcgi_script_name;
        include fastcgi_params;
    }
}
EOF

cat << EOF | tee /srv/website.com/app/app.rb
#!/usr/bin/env ruby

require "cgi"

cgi = CGI.new
cgi.out("status" => "OK", "type" => "text/plain", "connection" => "close") do
  "Hello!"
end
EOF

chown www-data:www-data /srv/website.com/app/app.rb
chmod +x /srv/website.com/app/app.rb

service nginx restart

curl --user "${username}:${password}" http://localhost/app/app.rb