Redirect After Proxy Apache2

Question

I have an application that runs on https://ip:8443. I have an Apache2 proxy server that stands in front of this application with the following config.

<VirtualHost *:80>
        ServerName mydomain
        ServerAlias mydomain
        Redirect permanent / https://mydomain/
</VirtualHost>

<VirtualHost *:443>
        ProxyPreserveHost On
        ProxyRequests Off
        SSLProxyEngine On
        ServerName mydomain
        ServerAlias mydomain
        ProxyPass / https://ip:8443/
        ProxyPassReverse / https://ip:8443/
        SSLCertificateFile /etc/letsencrypt/live/mydomain/cert.pem
        SSLCertificateKeyFile /etc/letsencrypt/live/mydomain/privkey.pem
</VirtualHost>

Now when I hit https://mydomain on the browser it works fine and shows https://ip:8443 content.

Now I want when someone visits https://mydomain to be redirected to another URL https://mydomain/subfolder which shows https://ip:8443/subfolder.

I searched for a week and tried a lot of solutions here but they didn't work.

Answer 1

This solution worked for me.

I added the following lines to <VirtualHost *:443>

<VirtualHost *:443>
        ...
        RewriteEngine On
        RewriteCond %{REQUEST_URI} ^/$
        RewriteRule (.*) https://mydomain/subfolder/ [R=301,L]
</VirtualHost>