To enable SSL, you can use a reverse proxy. In this case, we will use Nginx as the reverse proxy.

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Install Nginx

sudo apt-get install nginx

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Create Certificate

To proceed with this documentation, it is assumed that you already have a certificate for your domain.

You have the option to use Cloudflare or generate a certificate using Let’s Encrypt or Certbot.

Add the certificate to the following paths: /etc/key.pem and /etc/cert.pem

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Setup Nginx

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

server {
    listen 80;
    listen [::]:80;

    server_name example.com www.example.com;

    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    server_name example.com www.example.com;

    ssl_certificate /etc/cert.pem;
    ssl_certificate_key /etc/key.pem;

    location / {
        proxy_pass http://localhost:8080;
        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;        
    }
}

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Restart Nginx

sudo systemctl restart nginx

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Test

Visit your domain and you should see your application running with SSL.

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