/
enqueue_requests_for_virtualrouter_events.go
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/
enqueue_requests_for_virtualrouter_events.go
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package virtualservice
import (
"context"
appmesh "github.com/aws/aws-app-mesh-controller-for-k8s/apis/appmesh/v1beta2"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/k8s"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/references"
"github.com/aws/aws-app-mesh-controller-for-k8s/pkg/virtualrouter"
"github.com/go-logr/logr"
"k8s.io/client-go/util/workqueue"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/handler"
)
func NewEnqueueRequestsForVirtualRouterEvents(referencesIndexer references.ObjectReferenceIndexer, log logr.Logger) *enqueueRequestsForVirtualRouterEvents {
return &enqueueRequestsForVirtualRouterEvents{
referencesIndexer: referencesIndexer,
log: log,
}
}
var _ handler.EventHandler = (*enqueueRequestsForVirtualRouterEvents)(nil)
type enqueueRequestsForVirtualRouterEvents struct {
referencesIndexer references.ObjectReferenceIndexer
log logr.Logger
}
// Create is called in response to an create event
func (h *enqueueRequestsForVirtualRouterEvents) Create(e event.CreateEvent, queue workqueue.RateLimitingInterface) {
// no-op
}
// Update is called in response to an update event
func (h *enqueueRequestsForVirtualRouterEvents) Update(e event.UpdateEvent, queue workqueue.RateLimitingInterface) {
// VirtualService reconcile depends on virtualRouter is active or not.
// so we only need to trigger VirtualService reconcile if virtualRouter's active status changed.
vrOld := e.ObjectOld.(*appmesh.VirtualRouter)
vrNew := e.ObjectNew.(*appmesh.VirtualRouter)
if virtualrouter.IsVirtualRouterActive(vrOld) != virtualrouter.IsVirtualRouterActive(vrNew) {
h.enqueueVirtualServicesForVirtualRouter(context.Background(), queue, vrNew)
}
}
// Delete is called in response to a delete event
func (h *enqueueRequestsForVirtualRouterEvents) Delete(e event.DeleteEvent, queue workqueue.RateLimitingInterface) {
// no-op
}
// Generic is called in response to an event of an unknown type or a synthetic event triggered as a cron or
// external trigger request
func (h *enqueueRequestsForVirtualRouterEvents) Generic(e event.GenericEvent, queue workqueue.RateLimitingInterface) {
// no-op
}
func (h *enqueueRequestsForVirtualRouterEvents) enqueueVirtualServicesForVirtualRouter(ctx context.Context, queue workqueue.RateLimitingInterface, vr *appmesh.VirtualRouter) {
vsList := &appmesh.VirtualServiceList{}
if err := h.referencesIndexer.Fetch(ctx, vsList, ReferenceKindVirtualRouter, k8s.NamespacedName(vr)); err != nil {
h.log.Error(err, "failed to enqueue virtualServices for virtualRouter events",
"virtualRouter", k8s.NamespacedName(vr))
return
}
for _, vs := range vsList.Items {
queue.Add(ctrl.Request{NamespacedName: k8s.NamespacedName(&vs)})
}
}