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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| package k8s | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "reflect" | ||
|
|
||
| "github.com/golang/glog" | ||
| conf_v1 "github.com/nginxinc/kubernetes-ingress/pkg/apis/configuration/v1" | ||
| "github.com/nginxinc/kubernetes-ingress/pkg/apis/configuration/validation" | ||
| api_v1 "k8s.io/api/core/v1" | ||
| "k8s.io/client-go/tools/cache" | ||
| ) | ||
|
|
||
| func createPolicyHandlers(lbc *LoadBalancerController) cache.ResourceEventHandlerFuncs { | ||
| return cache.ResourceEventHandlerFuncs{ | ||
| AddFunc: func(obj interface{}) { | ||
| pol := obj.(*conf_v1.Policy) | ||
| glog.V(3).Infof("Adding Policy: %v", pol.Name) | ||
| lbc.AddSyncQueue(pol) | ||
| }, | ||
| DeleteFunc: func(obj interface{}) { | ||
| pol, isPol := obj.(*conf_v1.Policy) | ||
| if !isPol { | ||
| deletedState, ok := obj.(cache.DeletedFinalStateUnknown) | ||
| if !ok { | ||
| glog.V(3).Infof("Error received unexpected object: %v", obj) | ||
| return | ||
| } | ||
| pol, ok = deletedState.Obj.(*conf_v1.Policy) | ||
| if !ok { | ||
| glog.V(3).Infof("Error DeletedFinalStateUnknown contained non-Policy object: %v", deletedState.Obj) | ||
| return | ||
| } | ||
| } | ||
| glog.V(3).Infof("Removing Policy: %v", pol.Name) | ||
| lbc.AddSyncQueue(pol) | ||
| }, | ||
| UpdateFunc: func(old, cur interface{}) { | ||
| curPol := cur.(*conf_v1.Policy) | ||
| oldPol := old.(*conf_v1.Policy) | ||
| if !reflect.DeepEqual(oldPol.Spec, curPol.Spec) { | ||
| glog.V(3).Infof("Policy %v changed, syncing", curPol.Name) | ||
| lbc.AddSyncQueue(curPol) | ||
| } | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func (nsi *namespacedInformer) addPolicyHandler(handlers cache.ResourceEventHandlerFuncs) { | ||
| informer := nsi.confSharedInformerFactory.K8s().V1().Policies().Informer() | ||
| informer.AddEventHandler(handlers) //nolint:errcheck,gosec | ||
| nsi.policyLister = informer.GetStore() | ||
|
|
||
| nsi.cacheSyncs = append(nsi.cacheSyncs, informer.HasSynced) | ||
| } | ||
|
|
||
| func (lbc *LoadBalancerController) syncPolicy(task task) { | ||
| key := task.Key | ||
| var obj interface{} | ||
| var polExists bool | ||
| var err error | ||
|
|
||
| ns, _, _ := cache.SplitMetaNamespaceKey(key) | ||
| obj, polExists, err = lbc.getNamespacedInformer(ns).policyLister.GetByKey(key) | ||
| if err != nil { | ||
| lbc.syncQueue.Requeue(task, err) | ||
| return | ||
| } | ||
|
|
||
| glog.V(2).Infof("Adding, Updating or Deleting Policy: %v\n", key) | ||
|
|
||
| if polExists && lbc.HasCorrectIngressClass(obj) { | ||
| pol := obj.(*conf_v1.Policy) | ||
| err := validation.ValidatePolicy(pol, lbc.isNginxPlus, lbc.enableOIDC, lbc.appProtectEnabled) | ||
| if err != nil { | ||
| msg := fmt.Sprintf("Policy %v/%v is invalid and was rejected: %v", pol.Namespace, pol.Name, err) | ||
| lbc.recorder.Eventf(pol, api_v1.EventTypeWarning, "Rejected", msg) | ||
|
|
||
| if lbc.reportCustomResourceStatusEnabled() { | ||
| err = lbc.statusUpdater.UpdatePolicyStatus(pol, conf_v1.StateInvalid, "Rejected", msg) | ||
| if err != nil { | ||
| glog.V(3).Infof("Failed to update policy %s status: %v", key, err) | ||
| } | ||
| } | ||
| } else { | ||
| msg := fmt.Sprintf("Policy %v/%v was added or updated", pol.Namespace, pol.Name) | ||
| lbc.recorder.Eventf(pol, api_v1.EventTypeNormal, "AddedOrUpdated", msg) | ||
|
|
||
| if lbc.reportCustomResourceStatusEnabled() { | ||
| err = lbc.statusUpdater.UpdatePolicyStatus(pol, conf_v1.StateValid, "AddedOrUpdated", msg) | ||
| if err != nil { | ||
| glog.V(3).Infof("Failed to update policy %s status: %v", key, err) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // it is safe to ignore the error | ||
| namespace, name, _ := ParseNamespaceName(key) | ||
|
|
||
| resources := lbc.configuration.FindResourcesForPolicy(namespace, name) | ||
| resourceExes := lbc.createExtendedResources(resources) | ||
|
|
||
| // Only VirtualServers support policies | ||
| if len(resourceExes.VirtualServerExes) == 0 { | ||
| return | ||
| } | ||
|
|
||
| warnings, updateErr := lbc.configurator.AddOrUpdateVirtualServers(resourceExes.VirtualServerExes) | ||
| lbc.updateResourcesStatusAndEvents(resources, warnings, updateErr) | ||
|
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||
| // Note: updating the status of a policy based on a reload is not needed. | ||
| } |