Unclear how to expose access to management console (GCP)

Created by: KattMingMing

After following the Install Sourcegraph with Docker on Google Cloud documentation and setting up SSL/TLS - https://github.com/sourcegraph/sourcegraph/issues/2475 it's not obvious to users how to access the management console.

By default, 2633 is not exposed and users need to expose the port so that it can be accessible.

You can do so by running:

gcloud compute firewall-rules create management-console --allow tcp:2633,icmp

@slimsag is this how users should expose access to the management console?

Also should users update their certificate to a signed certificate when going through the SSL/TLS configuration?