title: how can i access cloud sql from google kubernetes engine
body: <p>At first i have delployed cloud sql with postgresql. and then i deployed gke with documents: <a href="https://cloud.google.com/support-hub#section-2" rel="nofollow noreferrer">https://cloud.google.com/support-hub#section-2</a>
  i used gcloud tool. and i made gke cluster using auto pilot mode. and made deployment with autoscaler.
  and i registered my docker image. and then i expose it with loadbalancer.
  Once i build my docker image. and then i excute it in local. it is running well.
  but it is not running well in gke server. and suddendly can not connect cloud sql.
  so i registered gke external ip in cloud sql connection ips. but it doesn't work...
  i want to connect cloud sql from google kubernetes engine.
  please help me...</p>