The controller will retrieve all the endpoints at the beginning of its
loop. When changes need to be applied, the provider may need to query
the endpoints again. Allow the provider to skip the queries if its data was
cached.
* continue on controller loop error
* add logging in source
* use formatter on logChanges for endpoints
* fix log messages, log skipped records
* add logging in aws, uppercase the rest
* respect google dry run policy
* add ing/svc namespace/name on logging
* fix error logging on template failure
* fix bugs, propagate template error
* log if nothing is being updated, debug log skipped endpoints
* change zone-not-found logging order