cloudsql/WARN/2022_001
Cloud SQL is not using Docker bridge network.
Product: CloudSQL
Rule class: WARN - Something that is possibly wrong
Description
The IP range 172.17.0.0/16 is reserved for the Docker bridge network. Any Cloud SQL instances created with an IP in that range will be unreachable. Connections from any IP within that range to Cloud SQL instances using private IP fail.
Remediation
Make sure that you do not use Docker bridge network for instances that need to get accessed via private ip.