Install script for Nginx & Keystone JS for Ubuntu 18.04 'bionic'

nginx-keystone.sh

#!/bin/bash

# Nginx installer script - Keystone JS example
#
# Pre-req: 
#       * Ubuntu Bionic (18.04) flavored distro
#       * Script must be executed under the account of the web admininstrator
#       * linux-devel-setup.sh - https://gist.github.com/WillSams/f17427b5a4f5bccc23d6efe1389b33ca
#       * mongodb-setup.sh - https://gist.github.com/WillSams/3588b69c805acf07ccb278c55fd91302

# Note:  If you don't have Nginx installed, this script will install and do basic setup for you.

# Additional notes:
# If you want to setup Nginx w/ GrandNode (.NET), see my nginx-grandnode.sh gist. 
# If you want to setup Nginx w/ Rails (Ruby), see my nginx-rails.sh gist.
# Running the two above scripts on the same web server won't break this script.

set -o nounset                        # unset variables are errors

__ScriptVersion="2018.12.08"
__ScriptName="nginx-keystone.sh"
__ScriptFullName="$0"

if [ -d /etc/nginx ]; then
  echo "Nginx is already installed on this system."
else
  echo "**************************** NGINX ******************************"
  echo "Installing nginx web server." 
  echo "You may be prompted for root credentials to complete the install."
  echo "*****************************************************************"
  
  sudo bash -c "add-apt-repository ppa:certbot/certbot -y"
  sudo sudo bash -c "apt update && apt upgrade -y"
  sudo bash -c "apt install nginx python-certbot-nginx -y"
  
  sudo bash -c "ufw allow 'NGINX FULL' && ufw enable"  
  
  sudo bash -c "rm -v /etc/nginx/sites-available/default"  
  sudo bash -c "sed -e '/include \/etc\/nginx\/sites-enabled/ s/^#*/#/' -i /etc/nginx/nginx.conf"
  
  sudo bash -c "echo '#Image Caching
include \/etc\/nginx\/conf.d\/img-cache.conf;' >> /etc/nginx/nginx.conf"
  
  sudo bash -c "echo 'location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
  expires 90d;
  add_header Pragma public;
  add_header Cache-Control \"public\";
}' >> /etc/nginx/conf.d/img-cache.conf"
  
  touch /etc/nginx/conf.d/default.conf
  
  sudo bash -c "systemctl enable nginx && service nginx start"
fi

if [ -f /etc/systemd/system/example-nodejs.service ]; then
  echo "Web project 'example-nodejs' appears to be already served."
else
  echo "*********************** EXAMPLE-nodejs **************************"
  echo "Installing the example-nodejs.com project to the nginx web server." 
  echo "You may be prompted for root credentials to complete the install."
  echo "*****************************************************************"
  
  echo "What is existing username for your Mongo DB admin account?" && read mongo_admin
  echo "What is the name or IP of the mongo database server?" && read mongo_server 
  
  mongo mongodb://$mongo_server:27017/example-nodejs-com -u $mongo_admin -p --authenticationDatabase admin --eval 'db.createCollection("dummy")'
  mongo mongodb://$mongo_server:27017/example-nodejs-com -u $mongo_admin -p --authenticationDatabase admin --eval 'db.createUser({"user":"example-nodejs-web-user","pwd":"passw0rd123","roles":[{"role":"dbOwner","db":"example-nodejs-com"}]})'
    
  yo keystone auto  
  mv keystone-starter $HOME/example-nodejs.com && cd $HOME/example-nodejs.com
  npm install node-sass-middleware --save && npm rebuild node-sass
  
  echo "MONGO_URI=mongodb://example-nodejs-web-user:passw0rd123@$mongo_server:27017/example-nodejs-com" >> .env   
  sed -e '/\/\/ Start Keystone to connect/r'<( echo "keystone.set('port',3010);") -i -- keystone.js   
   
  sudo bash -c "mv $HOME/example-nodejs.com /var/www"
  sudo bash -c "chown $USER:$USER -R /var/www/example-nodejs.com"   
  
  sudo bash -c "echo '################################## 
upstream example-nodejs {
  server 127.0.0.1:3010 fail_timeout=0;
}
server {
    listen 80;
    server_name example-nodejs.com;
    root /var/www/example-nodejs.com;
    try_files "'$uri'"/index.html "'$uri'" @example-nodejs;
    location @example-nodejs {
        proxy_set_header X-Forwarded-For "'$proxy_add_x_forwarded_for'";
        proxy_set_header Host "'$http_host'";
        proxy_redirect off;
        proxy_pass http://127.0.0.1:3010;
    }
    error_page 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 10;
}   
##################################' >> /etc/nginx/conf.d/default.conf" 
  
  sudo bash -c "echo '[Unit]
Description=Example-NodeJS PM2 start
After=network.target
 
[Service]
Type=forking
WorkingDirectory=/var/www/example-nodejs.com/
ExecStart=$HOME/.npm-global/bin/pm2 start keystone.js
Restart=always
RestartSec=10
SyslogIdentifier=nodejs-pm2-example-nodejs.com
User=$USER
Environment=PATH=/usr/bin:/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
Environment=PM2_HOME=$HOME/.pm2

[Install]

WantedBy=multi-user.target' >> /etc/systemd/system/example-nodejs.service"
  
  sudo bash -c "systemctl enable example-nodejs.service && service example-nodejs start"
  sudo bash -c "service nginx restart"  
  
  sudo bash -c "echo '  
0.0.0.0 example-nodejs.com' >> /etc/hosts"
fi

sudo sudo bash -c "apt autoremove && apt clean -y"

echo "Script complete.  Visit the website locally on the server at http://example-nodejs.com"