Count the amount of open connections to a remote server?

Hi everyone. I was trying to do something I thought would be easy, but I am hitting a wall. Is it possible to tell how many open connections a pod has to a remote server (in this case mongodb)? We have our mongo db hosted with a third party so monitoring the database itself is not an option. So, I was trying to build a query to get the number of running connections to either a remote port or a remote hostname a pod has open.

But I have been having no luck with finding the type of metric.