Apache configuration with sub paths that contain other applications: example.com (app1), example.com/warehouse (app2), example.com/sso (app3), example.com/finance (app4), any path except /warehouse, /sso, /finance, will be handled by app1

apache-alias.conf

<VirtualHost *:80>
    ServerName example.com
    ServerAlias www.example.com

    ServerAdmin admin@example.com
    DocumentRoot /var/www

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    <Directory /var/www/profile/public>
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>

    # Alias for /warehouse
    Alias "/warehouse" "/var/www/warehouse"
    <Directory /var/www/warehouse>
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all denied # change to `granted` if it's not working
        <FilesMatch "\.(php|inc|html|css|js|jpg|jpeg|png|gif)$">
            Require all granted
        </FilesMatch>
        <FilesMatch "^uploads/.*$">
           Require all granted
        </FilesMatch>
        <FilesMatch \.php$>
		    SetHandler "proxy:unix:/run/php/php7.4-fpm.sock|fcgi://localhost/"
	    </FilesMatch>
    </Directory>
    <Directory /var/www/warehouse/uploads>
        Options -Indexes +FollowSymLinks
        AllowOverride None
        Require all granted
    </Directory>

    # Alias for /sso
    Alias "/sso" "/var/www/sso"
    <Directory /var/www/sso>
        Options -Indexes +FollowSymLinks
        AllowOverride None
        Require all granted
        <FilesMatch "^\.(htaccess|htpasswd|git|svn|log|md|txt|env|env.example|gitignore|sh)$">
            Require all denied
        </FilesMatch>
        <IfModule mod_rewrite.c>
            RewriteEngine On
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteCond %{REQUEST_FILENAME} !-d
            RewriteRule ^(.*)$ index.php/$1 [L]
        </IfModule>
        <IfModule mod_headers.c>
            Header set X-XSS-Protection "1; mode=block"
            Header always append X-Frame-Options SAMEORIGIN
            Header set X-Content-Type-Options nosniff
            Header set Referrer-Policy "no-referrer-when-downgrade"
        </IfModule>
        <FilesMatch \.php$>
		    SetHandler "proxy:unix:/run/php/php8.1-fpm.sock|fcgi://localhost/"
	    </FilesMatch>
    </Directory>

    # Alias for /finance
    Alias "/finance" "/var/www/finance"
    <Directory /var/www/finance>
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>

    # Alias for /activity
    Alias "/activity" "/var/www/activity"
    <Directory /var/www/activity>
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>

    # Alias for /vms
    Alias "/vms" "/var/www/vms"
    <Directory /var/www/vms>
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>

    # Alias for /hr
    Alias "/vms" "/var/www/hr"
    <Directory /var/www/hr>
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

apache-rewrite.conf

<VirtualHost *:80>
    ServerName company.com
    DocumentRoot /var/www/profile/public

    <Directory /var/www/profile/public>
        AllowOverride None
        Require all granted
    </Directory>

    RewriteEngine On

    # Rewrite /finance to /var/www/finance
    RewriteCond %{REQUEST_URI} ^/finance [NC]
    RewriteRule ^/finance(.*)$ /var/www/finance$1 [L]

    # Rewrite /warehouse to /var/www/warehouse
    RewriteCond %{REQUEST_URI} ^/warehouse [NC]
    RewriteRule ^/warehouse(.*)$ /var/www/warehouse$1 [L]

    # Rewrite any other request to /var/www/profile/public
    RewriteCond %{REQUEST_URI} !^/(finance|warehouse) [NC]
    RewriteRule ^(.*)$ /var/www/profile/public/$1 [L]

    ErrorLog ${APACHE_LOG_DIR}/company-error.log
    CustomLog ${APACHE_LOG_DIR}/company-access.log combined
</VirtualHost>