Apache Config Files, by default, are stored in /etc/apache2/sites-available, and the naming convention for the vhost configuration files is 'example.com.conf'
Create a config file for the vhost, and paste in the config below. If you are not using SSL, use the top section only.
<VirtualHost *:80> ServerName drew.ga ServerAlias www.drew.ga
ServerAdmin webmaster@localhost
DocumentRoot /var/www/drew.ga
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
<VirtualHost *:443> ServerName drew.ga ServerAlias www.drew.ga SSLEngine on SSLCertificateFile /etc/letsencrypt/live/drew.ga/cert.pem SSLCertificateKeyFile /etc/letsencrypt/live/drew.ga/privkey.pem SSLCertificateChainFile /etc/letsencrypt/live/drew.ga/chain.pem ServerAdmin webmaster@localhost DocumentRoot /var/www/drew.ga
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
<Directory /var/www/drew.ga>
AllowOverride All
</Directory>