please add a option to show the current connected cluster

[qx-will]

I wish there is a option when invoke sfctl cluster to check what is the current connected cluster? i made several mistake to deploy the app onto the wrong cluster, after several times then before each deployment, i like to check which cluster i am actually connect to..

[samedder]

Thanks for the suggestion. This is a good first new feature that someone can add if they want to get familiar with the codebase.

[qx-will]

just make a PR to support this. @samedder

[Christina-Kang]

The command sfctl cluster show-connection has been added to display the connection string. Nothing is returned if no connection endpoint is found. Thanks!