GCP: Connection to Cloud SQL

Question

I have an architectural issue with Cloud SQL. We have an API that is running in a GKE cluster in a.network A and a cloud SQL instance in a.network B. The current.network config doesn't allow peering between these 2.networks. Is there any possibility to connect the API to the instance.

Answer 1

As @ Ferregina suggested:

The bastion hosts provide secure access to Linux instances located in the private and public su.nets of your virtual private cloud (VPC). The solution sets up a Multi-AZ environment and deploys Linux bastion host instances into the public su.nets.

As mentioned in the document :

To connect to a Cloud SQL instance using private IP, the Cloud SQL Auth proxy must be on a resource with access to the same VPC.network as the instance.

Refer to this link for more information.