Lightsail install additional WordPress modules

Creating a new WordPress Lightsail server is as easy as clicking a few buttons, but what if you want to add more WordPress sites to an existing server?

A new WordPress Lightsail server comes with one WordPress site preinstalled, however it is not clear how to add additional sites. There are some brief instructions from bitnami, but more work is needed to get a working solution.

https://docs.bitnami.com/installer/apps/wordpress/configuration/install-several-wordpress-modules/

Download the installer (for linux) from:

https://bitnami.com/stack/lamp/modules#wordpress

Currently:

https://bitnami.com/redirect/to/753986/bitnami-wordpress-5.2.4-0-module-linux-x64-installer.run

Install new instance, where 5.2.4-0 is the current version, examplecom is the site name, and PASSWORD is the bitnami application password

sudo chmod a+x bitnami-wordpress-5.2.4-0-module-linux-x64-installer.run
sudo ./bitnami-wordpress-5.2.4-0-module-linux-x64-installer.run --wordpress_instance_name examplecom --prefix /opt/bitnami --base_password PASSWORD

Define virtual host configuration

https://docs.bitnami.com/aws/components/apache/#how-to-create-a-virtual-host

In /opt/bitnami/apache2/conf/bitnami/bitnami-apps-prefix.conf, comment out include for examplecom.

# Include "/opt/bitnami/apps/examplecom/conf/httpd-prefix.conf"

In /opt/bitnami/apache2/conf/bitnami/bitnami-apps-vhosts.conf, add include for examplecom.

  Include "/opt/bitnami/apps/examplecom/conf/httpd-vhosts.conf"

In /opt/bitnami/apps/examplecom/conf/httpd-vhosts.conf, change vhost configuration to examplecom.

<VirtualHost *:80>
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot "/opt/bitnami/apps/examplecom/htdocs"
    
    Include "/opt/bitnami/apps/examplecom/conf/httpd-app.conf"
</VirtualHost>

In /opt/bitnami/apps/examplecom/conf/httpd-app.conf, change Rewrite rules to

    RewriteEngine On
    RewriteRule ^index\.php$ - [S=1]
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule . index.php [L]

Change site URL in WordPress configuration. In /opt/bitnami/apps/examplecom/htdocs/wp-config.php.

define('WP_SITEURL', 'http://' . $_SERVER['HTTP_HOST'] . '/');
define('WP_HOME', 'http://' . $_SERVER['HTTP_HOST'] . '/');   

Restart Apache

sudo /opt/bitnami/ctlscript.sh restart apache

Ensure that the HTTP website is working on AWS before proceeding to configure HTTPS.