Remediation

From Google Cloud Console

1. Go to the Cloud SQL Instances page in the Google Cloud Console: https://console.cloud.google.com/sql/instances
2. Click the instance name to open its Instance details page.
3. Select the Connections tab.
4. Deselect the Public IP checkbox.
5. Click Save to update the instance.

From Google Cloud CLI

1. For every instance remove its public IP and assign a private IP instead:

        gcloud sql instances patch <INSTANCE_NAME> --network=<VPC_NETWORK_NAME> --no-assign-ip

2. Confirm the changes using the following command:

        gcloud sql instances describe <INSTANCE_NAME>