Informer, Cache and Queue | Kubernetes Informers vs Watch | Basics of client-go Kubernetes Part - 4

Informers are very important concepts/construct to know if about if you are planning to write you own custom controller. In this particular video we looked into what exactly are informers and the caching mechanism that it uses. A part from that we also looked into some other things for example when to use FilteredSharedInformerFactory instead of SharedInformersFactory and the different between them. We also looked into the comparison of informers with watch and why we don't use watch verb in favour of informers. Web: https://viveksingh.dev/ 00:00 Introduction 00:20 Agenda 00:38 What are custom controller 02:47 watch verb from a resource interface 04:06 Why we don't use watch 05:01 Informers 07:22 Benefits of informers 08:28 SharedInformerFactory 11:22 Start and WaitForCacheSync methods 13:00 Using informers lister 13:57 resync time for shared informer factory 18:06 Register add, delete, update functions 19:44 Cache resync and actual update 22:38 ResourceVersion to figure out update 23:34 Don't update informer's cache's resources 25:20 FilteredSharedInformerFactory for filtered resources 29:03 Queues 32:56 Like and Subscribe