gce/WARN/2022_004
Cloud SQL Docker bridge network should be avoided.
Product: Compute Engine
Rule class: WARN - Something that is possibly wrong
Description
The IP range 172.17.0.0/16 is reserved for the Docker bridge network. 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 access Cloud SQL via private ip.