Inside the Kubernetes Job Controller: Controller Setup and Event Handlers
Entry Point
The Job controller lives in pkg/controller/job/job_controller.go. NewController() builds the controller instance, and its Run() method starts the sync loops. Higher up, the controller manager wires it like this:
cmd/kube-controller-manager/app/batch.go:34
func startJobController(ctx context.Context, controllerContext ControllerCon ...
Posted on Fri, 24 Jul 2026 16:34:42 +0000 by anolan13
Deep Dive into Kubernetes client-go Workqueue Implementation
Queue: The Foundation
The basic Queue interface defines the fundamental contract for processing items. It supports adding items, retrieving them, and marking them as complete.
The concrete implementation of this interface maintains three internal data structures to ensure processing order and deduplication:
orderList: A slice that preserves th ...
Posted on Wed, 17 Jun 2026 16:53:53 +0000 by XaeroDegreaz