[V3] Multi-group log context

[Adirio]

In v2. when multi-group is enabled, each controller is provided with a logger adding it's kind as context:

kubebuilder/testdata/project-v2-multigroup/main.go

Lines 85 to 92 in 5dc6055

	if err = (&crewcontroller.CaptainReconciler{
	Client: mgr.GetClient(),
	Log: ctrl.Log.WithName("controllers").WithName("Captain"),
	Scheme: mgr.GetScheme(),
	}).SetupWithManager(mgr); err != nil {
	setupLog.Error(err, "unable to create controller", "controller", "Captain")
	os.Exit(1)
	}

However, multiple controllers in the same project can have the same Kind if they are in different groups. The group should also be provided qas context to differentiate logs from two controllers from different groups but the same kind.

Code to modify:

kubebuilder/pkg/scaffold/internal/templates/v2/main.go

Lines 108 to 119 in 5dc6055

	// TODO(v3): loggers for the same Kind controllers from different groups use the same logger.
	// `.WithName("controllers").WithName(GROUP).WithName(KIND)` should be used instead. However,
	// this is a backwards incompatible change, and thus should be done for next project version.
	multiGroupReconcilerSetupCodeFragment = `if err = (&%scontroller.%sReconciler{
	Client: mgr.GetClient(),
	Log: ctrl.Log.WithName("controllers").WithName("%s"),
	Scheme: mgr.GetScheme(),
	}).SetupWithManager(mgr); err != nil {
	setupLog.Error(err, "unable to create controller", "controller", "%s")
	os.Exit(1)
	}
	`

/kind feature

[camilamacedo86]

/assign @camilamacedo86