I use kubernetes secrets to configure my CI containers. I updated updating from 1.5.1 to 1.8.4. Unfortunately fileExists and readYaml form jenkins pipeline utils are not able to read the mounted secrets anymore. I can list the folder /secrets and do a cat on /secrets/mysecret but fileExists /secrets/mysecret => false and readYaml /secrets/mysecret throws file not found exception.
The only thing I changed is the plugin version. I run on kubernetes 1.10.X
I hope I provided all necessary information (I stripped few things of versions i deem unnecessary)