homeserver/roles/mgrote_munin_server/templates/apache.conf

<VirtualHost *:80>
    ServerName {{ munin_servername }}

    # Redirect requests without /munin to /munin
    RedirectMatch ^/$ /munin/

    # Existing configuration for serving /munin
    <Directory /etc/munin/static>
        Require all granted
        Options None
    </Directory>

    <Location /munin-cgi/munin-cgi-graph>
        Require all granted
        <IfModule mod_fcgid.c>
            SetHandler fcgid-script
        </IfModule>
    </Location>
</VirtualHost>