https://cloud.google.com/datastream/docs/private-connectivity
install config para proxy
sudo apt install wget
wget https://dl.google.com/cloudsql/cloud_sql_proxy.linux.amd64 -O cloud_sql_proxy
chmod +x cloud_sql_proxycopy key.json to vm path
run cloud_sql_proxy
./cloud_sql_proxy -instances=-staging:west1:-staging-0ada6cc6=tcp:0.0.0.0:5432 -credential_file=./iam-acount-cloudsqlproxy.json -ip_address_types=PRIVATE &