shubham kumar
< /TheShubham >

< /TheShubham >

How to clone your Private Git Repository and Deploy on Digitalocean your Node js Application with Nginx & SSL

How to clone your Private Git Repository and Deploy on Digitalocean your Node js Application with Nginx & SSL

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

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shubham kumar
·Oct 18, 2021·

3 min read

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Table of contents

1. Sign up for Digital Ocean

2. Create a droplet and log in via password

  • After logging in or successfully signing up for a new account, open the “Create” drop-down menu and click the “Droplets” link.
  • On the Create Droplets page, select the Ubuntu operating system. And choose the $5/month plan, which will give us plenty of computing power to start with.
  • There are a few more options on that page to fill out.

When it comes to the Authentication section, don’t set-up any SSH keys , Create a root password to access Droplet (less secure).

  • When you’re done selecting options, hit the Create Droplet button. then the Droplet is fully up and running, the control panel will display it’s IP address.

create-new-droplet-success-1.png

Your server is now set up and running!

  • Root Login

To set-up server, you’ll need both the IP address of the server and the private key (password) for the Root user's account.

To log into your server, open a terminal (Ctrl+Alt+T for Linux) on your local machine.

ssh root@server_ip_address

Accept the warning about host authenticity, if it appears, and provide your root password.

3. Install Node/NPM

curl -sL https://deb.nodesource.com/setup_16.x | sudo -E bash -
sudo apt install nodejs
node --version

4. Clone your private repository from GitHub to Server

  • connect to your server (Droplet) and generate SSH key
sudo ssh-keygen

If you want, choose path and name for your key. I always use default path (~/.ssh) and name, like id_rsa.

  • create SSH config
sudo cat >~/.ssh/config <<EOL

Host project_name
Hostname github.com
User git
IdentityFile ~/.ssh/id_rsa
EOL
  • Copy public key to clipboard and go to your GitHub repository settings
sudo cat ~/.ssh/id_rsa.pub
  • Add copied public key to Deploy Keys section and Don't forget to check Allow write access.

1_UsrDMTyCg1tMunUZKhO8nw.png

😊 Let’s clone it (inside the /root/home Directory)

$ pwd
/root/home 
sudo git clone project_name:<user>/<repo>.git

How to update?

For update, type into your project directory:

git pull

5. Install dependencies and test app

cd yourproject
npm install
npm start #(or whatever your start command)
# stop app
ctrl+C

6. Setup PM2 process manager to keep your app running

sudo npm i pm2 -g
pm2 start app.js #(or whatever your file name)

# Other pm2 commands
pm2 show app
pm2 status
pm2 restart app
pm2 stop app
#(Show log stream)
pm2 logs
#(Clear logs)
pm2 flush

# To make sure app starts when reboot
pm2 startup ubuntu

You should now be able to access your app using your IP and port. Now we want to setup a firewall blocking that port and setup NGINX as a reverse proxy so we can access it directly using port 80 (HTTP).

7. Setup ufw firewall

sudo ufw enable
sudo ufw status
# Port 22
sudo ufw allow ssh  
# Port 80
sudo ufw allow HTTP  
 # Port 443 
sudo ufw allow HTTPS

8. Add domain in Digital Ocean

In Digital Ocean, go to networking and add a domain to droplet.

9. Install NGINX and configure

sudo apt install nginx

sudo nano /etc/nginx/sites-available/default

Add the following to the location part of the server block

server_name yourdomain.com;
    location / {
        proxy_pass http://localhost:3000; #whatever port your app runs on
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }

Then check and restart Nginx

# Check NGINX config
sudo nginx -t

# Restart NGINX
sudo service nginx restart

10. Add SSL with LetsEncrypt

# Ubuntu 18.04 
sudo add-apt-repository ppa:certbot/certbot
sudo apt-get update
sudo apt-get install python-certbot-nginx

# Ubuntu 20.04
sudo apt install certbot python3-certbot-nginx 

sudo certbot --nginx -d yourdomain.com 

# Only valid for 90 days, test the renewal process with
certbot renew --dry-run

Now visit yourdomain.com and you should see your Node app.

😊😊😊😊😊Thank You😊😊😊😊😊

 
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