Assign private IP for instances created in google app engine flexible environment

[Elan Gamer]

I am trying to create a application in GAE that uses automatic scaling in flexible env. The automatic_scaling min instance was set to 2. Now once the app is deployed the two instances are created and they are assigned public ips.

I also tried specifying the network in app.yml and this creates a private ip for the instance in the network (which is what I want) and I am able to ping the instance with that private IP within the network I mentioned ....but still there is public IP being assigned to the instances

Is there a way to make GAE not assign public ip addresses to the instances?

[Elliott (Cloud Platform Support)]

Hello Elan,

Can you provide a REDACTED screenshot of the public IPs? I'll need this to understand what's happening.