This article is focused on Creating Virtual Hosts on Ubuntu using Letsencrypt Certificates, we learned to generate SSL files using free Letsencrypt. Now using them we are going to make a virtual host. Replace your_domain.com with your actual domain. Virtual Hosts Just follow steps and copy code at this file.
cd /etc/apache2/sites-available
nano your_domain.conf
Now copy both sections to this file, save this file.
<VirtualHost *:80>
    ServerAdmin webmaster@localhost
                ServerName  your_domain.com
                ServerAlias www.your_domain.com
                DocumentRoot /web/html
#		Redirect / https://your_domain.com/
		<directory /web/html >
                	Options Indexes FollowSymLinks
                	AllowOverride All
                	Order allow,deny
                	Allow From All
        	</directory>
        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
<VirtualHost *:443>
                SSLEngine on
		SSLCertificateFile /etc/letsencrypt/live/your_domain.com/cert.pem
		SSLCertificateKeyFile /etc/letsencrypt/live/your_domain.com/privkey.pem
		SSLCertificateChainFile /etc/letsencrypt/live/your_domain.com/chain.pem
		ServerAdmin webmaster@localhost
                ServerName  your_domain.com
                ServerAlias www.your_domain.com
                	<directory /web/html >

                        Options Indexes FollowSymLinks
                        AllowOverride All
                        Order allow,deny
                        Allow From All                  
	</directory>

	ErrorLog ${APACHE_LOG_DIR}/error.log
      	CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
Now run this to enable your newly created virtual host.
a2ensite your_domain.conf
Time to restart Apache
service apache2 restart
Now go to your browser, your site your_domain.com must start listening to this newly created virtual host. Horray! To be summarised, It was horrible before Letsencrypt, Letsencrypt makes life so easy to call our websites to Secure!