* change to klog/v2
* add logfilepath opt in helm chart
* replace klog.InfoF with klog.InfoS and improve messages
Remove string formatting from log message, improve messages in klog.InfoS and use lowerCamelCase to fmt Name arguments in klog.InfoS
* fix klog.Error
for expected errors (errors that can happen during routine operations) use klog.InfoS and pass error in err key instead.
* use klog.KObj and klog.KRef for Kubernetes objects
ensure that kubernetes objects references are consistent within the codebase
* enable set logdebug level
* add log-file-max-size