Incidentatlly, I just had a conversation with Manjot (PM) this morning.
It is not possible to get rid of the public IP for master since Google needs 
that to communicate to it for its management.

punit agrawal
dev-ops lead
new product development
ebay


From: <kubernetes-users@googlegroups.com> on behalf of Mauricio Castro 
<mauriciossantiagodecas...@gmail.com>
Reply-To: "kubernetes-users@googlegroups.com" 
<kubernetes-users@googlegroups.com>
Date: Friday, September 7, 2018 at 9:50 AM
To: Kubernetes user discussion and Q&A <kubernetes-users@googlegroups.com>
Subject: [kubernetes-users] private cluster master access and ip

Hello all, I am starting with k8s in google, please help me with this doubt 
regarding private clusters.

I made it work  just fine based on a pre-defined subnet. great. all closed , 
all private, nodes have no public ip's, master range is 172.16.4.0/28 as 
expected and all is good.


I was assuming that with this I would only be able to access it (or at least 
this is what I wanted in the first place) the master with kubectl from inside 
the vpc against some master private ip from that range  172.16.4.0/28, but the 
only way I can get to my master with kubectl is by accessing its external 
public ip that ok I can restrict access to, but is there any other way to get 
to the master through a internal ip and get rid of the public ip altogether?


Thanks.

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