<IfModule mod_ssl.c>
<VirtualHost <external IP address>:443>
ServerName <external hostname>
CustomLog logs/<external hostname>-access_log combined
ErrorLog logs/<external hostname>-error_log
ProxyPreserveHost On
<Location / >
ProxyPass http://<host on the local network>:8080/
ProxyPassReverse http://<host on the local network>:8080/
</Location>
SSLCertificateFile <path to certificates>/cert.pem
SSLCertificateKeyFile <path to certificates>/privkey.pem
SSLCertificateChainFile <path to certificates>/chain.pem
...
</VirtualHost>
</IfModule>