I\'m trying to use Google Cloud SQL over SSL from GCE(Google Compute Engine) instance. My problem is that I cannot connect to Cloud SQL instance over SSL.
mysql comm
I had the same problem with a MySQL database hosted at compose cluster.
After searching and testing for hours, I found out that the best solution is to disable testing the certificate provided by the server by using the MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT flag.
I haven't tested it with PDO but with the mysqli interface it is working for me.
In general this problem would appear with a database hosted at a cluster server.