Gitlab Mattermost not available via ipv6
It seems like Gitlab Mattermost is not reachable via IPv6. While connecting mattermost in my working environment (IPv4) ony, I do not see any problem. As soon as I switch home, mattermost is not available anymore.
var/opt/gitlab/nginx/conf/gitlab-mattermost-http.conf does not even listen to IPv6 socket, and the mattermost upstream is IPv4 only, so this seems reasonable.
Can you please confirm this?