Currently, the gitlab executor always connects over SSH on the default port 22 on the VM. While this works well in general, it limits the ability to change the port of the ssh server in the VM. For example, we run a separate sshd server via LaunchAgent (on a different port) to provide CI runs access to the user's bootstrap context, which is required by a few CI tests. Hence, the below request:

The request is to provide an option to customize the SSH port: eg TART_EXECUTOR_SSH_PORT that still defaults to 22 if unset. This gives more flexibility in building VMs.