Logging verbosity or connecting to GCP ProxySQL

[WMCMarcinR]

Hello,
my case is as follows.
Private GKE cluster, private MySQL google CloudSQL DB.
I am connecting from the cluster to the DB with cloud-sql-proxy to private ip. With application and pod it works.
Unfrotunately Adminer does not connect and logsa say actually nothing.
Has anybody either such experienc/env as mine or would give a hint how to increase logging verbosity with env variable prefarably?