ImageUpdateAutomationReconciler watches GitRepository and ImagePolicy
kinds for every event. This leads to unnecessary extra reconciliations
at times. For example when the controller starts with existing
resources, the same ImageUpdateAutomation object gets reconciled at
least twice, once due to the watch on ImageUpdateAutomation startup
and again due to the watches on GitRepository and ImagePolicy for create
event, as they get registered in the cache.
Add predicates to filter the ImagePolicy to only allow events for latest
image update, and GitRepository to only allow events for change in the
source configuration.
Signed-off-by: Sunny <github@darkowlzz.space>
Matheus Pimenta
Sunny