How To Install MEAN Stack On Ubuntu 20.04

 in This Tutorial you will learn "How To Install & Configure MEAN Stack On Ubuntu 20.04"

MEAN stack is an acronym for a technology stack that uses popular web application development tools and technologies namely MongoDB, Express.js, Angularjs (or Angular), and Node.js.
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Server - Os:  Ubuntu 20.04.3 LTS 64Bit        | IP -192.168.1.80            |Hostname -  ubuntu.example.com
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lsb_release -d ; hostname -I ; hostname
apt-get install mongodb curl gnupg2 unzip git gcc g++ make nginx -y
systemctl start mongodb ; systemctl enable mongodb
curl -sL https://deb.nodesource.com/setup_14.x | bash -
apt-get install nodejs -y
node -v ; npm -v

npm install -g yarn
npm install -g gulp
npm install pm2 -g

git clone https://github.com/meanjs/mean
cd mean ; yarn install
nano server.js
const express = require('express');
const MongoClient = require('mongodb').MongoClient;
const app = express();

app.use('/', (req, res) => {
MongoClient.connect("mongodb://localhost:27017/test", function(err, db){
db.collection('Example', function(err, collection){
collection.insert({ pageHits: 'pageHits' });
db.collection('Example').count(function(err, count){
if(err) throw err;
res.status(200).send('Page Hits: ' + Math.floor(count/2));
});
});
});
});

app.listen(3000);
console.log('Server running at http://localhost:3000/');

module.exports = app;

pm2 start server.js
pm2 startup
nano /etc/nginx/conf.d/yourdomain.conf
server {
        listen 80;
        server_name www.yourdomain.com;

        location / {
                proxy_pass http://127.0.0.1:3000;
                proxy_set_header Host $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto $scheme;
        }
}
nginx -t ; systemctl restart nginx
echo "192.168.1.80 www.yourdomain.com"  >> /etc/hosts
rm /etc/nginx/sites-available/default ; rm /etc/nginx/sites-enabled/default
ln -s /etc/nginx/sites-available/yourdomain.com /etc/nginx/sites-enabled/
http://www.yourdomain.com
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