Gitlab custom ssh url

How to Use GitLab Self-managed
1

We are in the process of installing gitlab in our environment and would like to use the following setup:

gitlab-environment

  • change the ssh port gitlab listens on to 2222
  • use the LoadBalancer to accept requests on port 22 and forward them to 2222
  • use ssh://gitlab.example.com:group/project.git as Clone with SSH url (so without port 2222)

We can only find two related settings to this problem:

  • gitlab_ssh_host which only changes the hostname
  • gitlab_shell_ssh_port which only changes the port

Changing the port would also result in a Clone with SSH url with a different port, which is what we would like to avoid. Is there an option to explicitly set a ssh clone url?