• STEP1 - Login to AWS console and create EC2 instance

• STEP2 - Setup GitHub Repo and Push your project

• STEP3 - Login to EC2 instance

• STEP4 - Install nodejs and nginx on EC2 instance

  sudo apt update
  
  sudo apt-get install -y ca-certificates curl gnupg
  sudo mkdir -p /etc/apt/keyrings
  curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
  
  NODE_MAJOR=18
  echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list
  
  sudo apt update
  sudo apt-get install -y nodejs
  
  sudo apt-get install -y nginx
  

• STEP5 - Clone your project from GitHub & Check the files (For Public Repo)

  git clone <url>
  cd <project-name>
  ls -a

• STEP6 - Config nginx and restart it

  sudo nano /etc/nginx/sites-available/default
  
  location / {
      proxy_pass  http://localhost:8080;
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }
  
  sudo nginx -t
  sudo systemctl restart nginx

• STEP7 - Install pm2

  sudo npm i -g pm2

• STEP8 - Run backend api in the background as a service using pm2

  pm2 start npm --name node-cicd-api -- run start:prod

• STEP9 - Generate ed25519 key & Add ed25519 key into Authorized keys

  ssh-keygen -t ed25519 -a 200 -C "your_email@example.com"
  cat .ssh/cicd.pub >> ~/.ssh/authorized_keys

• STEP10 - Add PORT=22 , HOST=public ip , USER=ubuntu , KEY=private key and env vars in GitHub Secrets

• STEP11 - Add the command in yml script of project to restart the nodejs api server after every push to the repo

• NOTE - For Private repo before STEP5 Generate your Key with STEP9 command and add the Public key to Deploy Keys of Repo (Name = SSH_KEY)

Go to your Domain Provider and configure DNS (A name / C name ) pointing to the ip of the machine. Run and Check The domain is working or not.

sudo snap install core; sudo snap refresh core

sudo apt remove certbot

sudo snap install --classic certbot

sudo ln -s /snap/bin/certbot /usr/bin/certbot

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

let edit this line:

...
server_name example.com www.example.com;
...

sudo nginx -t

sudo systemctl reload nginx

sudo certbot --nginx -d app.example.com 

Output:

IMPORTANT NOTES:
Successfully received certificate.
Certificate is saved at: /etc/letsencrypt/live/your_domain/fullchain.pem
Key is saved at: /etc/letsencrypt/live/your_domain/privkey.pem
This certificate expires on 2022-06-01.
These files will be updated when the certificate renews.
Certbot has set up a scheduled task to automatically renew this certificate in the background.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
If you like Certbot, please consider supporting our work by:
* Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
* Donating to EFF: https://eff.org/donate-le

sudo systemctl status snap.certbot.renew.service

Output:

○ snap.certbot.renew.service - Service for snap application certbot.renew
     Loaded: loaded (/etc/systemd/system/snap.certbot.renew.service; static)
     Active: inactive (dead)
TriggeredBy: ● snap.certbot.renew.timer

To test the renewal process, you can do a dry run with certbot:

sudo certbot renew --dry-run

Enjoy Your free Nodejs server with Free SSL :)