<VirtualHost *:443>
    ProxyPreserveHost On
    ProxyRequests Off
    ServerName sub1.example.com
    ServerAlias www.sub1.example.com
    ProxyPass / http://192.168.1.50:5000/
    ProxyPassReverse / http://192.168.1.50:5000/

    <Location />
        SSLRequireSSL
        Order allow,deny
        Allow from all
    </Location>

    SSLEngine On
    SSLProxyEngine On
    SSLCertificateFile /etc/apache2/ssl/apache.crt
    SSLCertificateKeyFile /etc/apache2/ssl/apache.key
</VirtualHost>

<VirtualHost *:80>
    ServerName sub1.example.com
    ServerAlias www.sub1.example.com
    Redirect permanent / https://sub1.example.com/
</VirtualHost>

<VirtualHost *:443>
    ProxyPreserveHost On
    ProxyRequests Off
    ServerName sub2.example.com
    ServerAlias www.sub2.example.com
    ProxyPass / http://192.168.1.121:8989/
    ProxyPassReverse / http://192.168.1.121:8989/

    <Location />
        SSLRequireSSL
        Order allow,deny
        Allow from all
    </Location>

    SSLEngine On
    SSLCertificateFile /etc/apache2/ssl/apache.crt
    SSLCertificateKeyFile /etc/apache2/ssl/apache.key
</VirtualHost>

<VirtualHost *:80>
    ServerName sub2.example.com
    ServerAlias www.sub2.example.com
    Redirect permanent / https://sub2.example.com/
</VirtualHost>