failed to connect to instance: Dial error: handshake failed... tls: either ServerName or InsecureSkipVerify must be specified in the tls.Config

[rkja22]

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Facing this error with a cloud sql auth proxy connection. The set up is like this -

• Cloud SQL Auth proxy is running on a VM in a VPC which is connected to CloudSQL instance via peering (PSA)
• Cloud SQL has only private IP
• Tested with both SSL enabled and disabled. Same error.
• Command used to start the proxy - ./cloud-sql-proxy --address 0.0.0.0 --port 5498 projectname:region:instancename --private-ip

Error seen in proxy logs - failed to connect to instance: Dial error: handshake failed (connection name ="projectname:region:instancename ") tls: either ServerName or InsecureSkipVerify must be specified in the tls.Config