proxy conf

httpd.conf

<VirtualHost *>
    ServerName gerrit
    ProxyRequests Off
    ProxyVia Off
    ProxyPreserveHost On

    <Proxy *>
        Order deny,allow
        Allow from all
    </Proxy>
<Location "/">
AuthType Basic
AuthName "Gerrit Code Review"
AuthBasicProvider file
AuthUserFile '/usr/local/apache2/conf/.htpasswd'
Require valid-user
</Location>
AllowEncodedSlashes On
ProxyPass / http://gerrit:8080/ nocanon
</VirtualHost>