Lightsail Bitnami Wordpress with CloudFront www. Redirect

Hello, I'm using Lightsail to host Bitnami Wordpress. I've configured a CloudFront distribution within Lightsail to serve the cached content from the origin server with 2 valid domains example.com and www.example.com.

The issue I'm having is I now have 2 domains (www and non-www) serving the same content with no redirection occurring. I was able to get https redirect to occur, after editing /opt/bitnami/wordpress/wp-config.php with the following:

define('WP_SITEURL', 'https://' . $_SERVER['HTTP_HOST'] . '/');
define('WP_HOME', 'https://' . $_SERVER['HTTP_HOST'] . '/');
if (isset($_SERVER['HTTP_CLOUDFRONT_FORWARDED_PROTO'])
&& $_SERVER['HTTP_CLOUDFRONT_FORWARDED_PROTO'] === 'https') {
$_SERVER['HTTPS'] = 'on';
}

Now, I'm trying to get www to non-www redirect to work. I've tried to add the following to opt/bitnami/wordpress/.htaccess but it seems as if it's not respecting the alterations.

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www.example.com [NC]
RewriteRule ^(.*)$ http://example.com/$1 [L,R=301,NC]

Bottom line - what changes do I need to make to either routing (within the Lightsail DNS zone I have mapped) or to the origin server to have a simple www.example.com redirect to example.com? Thank you!