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Bug 1764704: Sync router-ca to the console namespace
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138 changes: 138 additions & 0 deletions
138
pkg/console/controllers/resourcesyncdestination/controller.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package resourcesyncdestination | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/util/runtime" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
| coreinformersv1 "k8s.io/client-go/informers/core/v1" | ||
| coreclientv1 "k8s.io/client-go/kubernetes/typed/core/v1" | ||
| "k8s.io/client-go/tools/cache" | ||
| "k8s.io/client-go/util/workqueue" | ||
| "k8s.io/klog" | ||
|
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| operatorsv1 "github.com/openshift/api/operator/v1" | ||
| operatorclientv1 "github.com/openshift/client-go/operator/clientset/versioned/typed/operator/v1" | ||
| operatorinformersv1 "github.com/openshift/client-go/operator/informers/externalversions/operator/v1" | ||
| "github.com/openshift/console-operator/pkg/api" | ||
| "github.com/openshift/library-go/pkg/operator/events" | ||
| ) | ||
|
|
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| const ( | ||
| controllerWorkQueueKey = "resource-sync-destination-work-queue-key" | ||
| controllerName = "ConsoleResourceSyncDestinationController" | ||
| ) | ||
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| type ResourceSyncDestinationController struct { | ||
| operatorConfigClient operatorclientv1.ConsoleInterface | ||
| configMapClient coreclientv1.ConfigMapsGetter | ||
| // events | ||
| cachesToSync []cache.InformerSynced | ||
| queue workqueue.RateLimitingInterface | ||
| recorder events.Recorder | ||
| } | ||
|
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| func NewResourceSyncDestinationController( | ||
| // operatorconfig | ||
| operatorConfigClient operatorclientv1.ConsoleInterface, | ||
| operatorConfigInformer operatorinformersv1.ConsoleInformer, | ||
| // configmap | ||
| corev1Client coreclientv1.CoreV1Interface, | ||
| configMapInformer coreinformersv1.ConfigMapInformer, | ||
| // events | ||
| recorder events.Recorder, | ||
| ) *ResourceSyncDestinationController { | ||
| corev1Client.ConfigMaps(api.OpenShiftConsoleNamespace) | ||
|
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| ctrl := &ResourceSyncDestinationController{ | ||
| operatorConfigClient: operatorConfigClient, | ||
| configMapClient: corev1Client, | ||
| // events | ||
| recorder: recorder, | ||
| cachesToSync: nil, | ||
| queue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), controllerName), | ||
| } | ||
|
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| configMapInformer.Informer().AddEventHandler(ctrl.newEventHandler()) | ||
| operatorConfigInformer.Informer().AddEventHandler(ctrl.newEventHandler()) | ||
| ctrl.cachesToSync = append(ctrl.cachesToSync, | ||
| operatorConfigInformer.Informer().HasSynced, | ||
| configMapInformer.Informer().HasSynced, | ||
| ) | ||
|
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| return ctrl | ||
| } | ||
|
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| func (c *ResourceSyncDestinationController) sync() error { | ||
| operatorConfig, err := c.operatorConfigClient.Get(api.ConfigResourceName, metav1.GetOptions{}) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| switch operatorConfig.Spec.ManagementState { | ||
| case operatorsv1.Managed: | ||
| klog.V(4).Infoln("console is in a managed state: syncing router-ca configmap") | ||
| case operatorsv1.Unmanaged: | ||
| klog.V(4).Infoln("console is in an unmanaged state: skipping router-ca configmap sync") | ||
| return nil | ||
| case operatorsv1.Removed: | ||
| klog.V(4).Infoln("console is in an removed state: removing synced router-ca configmap") | ||
| return c.removeRouterCAConfigMap() | ||
| default: | ||
| return fmt.Errorf("unknown state: %v", operatorConfig.Spec.ManagementState) | ||
| } | ||
|
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| return err | ||
| } | ||
|
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| func (c *ResourceSyncDestinationController) removeRouterCAConfigMap() error { | ||
| klog.V(2).Info("deleting router-ca configmap") | ||
| defer klog.V(2).Info("finished deleting router-ca configmap") | ||
| return c.configMapClient.ConfigMaps(api.OpenShiftConsoleNamespace).Delete(api.RouterCAConfigMapName, &metav1.DeleteOptions{}) | ||
| } | ||
|
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| func (c *ResourceSyncDestinationController) Run(workers int, stopCh <-chan struct{}) { | ||
| defer runtime.HandleCrash() | ||
| defer c.queue.ShutDown() | ||
| klog.Infof("starting %v", controllerName) | ||
| defer klog.Infof("shutting down %v", controllerName) | ||
| if !cache.WaitForCacheSync(stopCh, c.cachesToSync...) { | ||
| klog.Infoln("caches did not sync") | ||
| runtime.HandleError(fmt.Errorf("caches did not sync")) | ||
| return | ||
| } | ||
| // only start one worker | ||
| go wait.Until(c.runWorker, time.Second, stopCh) | ||
| <-stopCh | ||
| } | ||
|
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| func (c *ResourceSyncDestinationController) runWorker() { | ||
| for c.processNextWorkItem() { | ||
| } | ||
| } | ||
|
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| func (c *ResourceSyncDestinationController) processNextWorkItem() bool { | ||
| processKey, quit := c.queue.Get() | ||
| if quit { | ||
| return false | ||
| } | ||
| defer c.queue.Done(processKey) | ||
| err := c.sync() | ||
| if err == nil { | ||
| c.queue.Forget(processKey) | ||
| return true | ||
| } | ||
| runtime.HandleError(fmt.Errorf("%v failed with : %v", processKey, err)) | ||
| c.queue.AddRateLimited(processKey) | ||
| return true | ||
| } | ||
|
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| func (c *ResourceSyncDestinationController) newEventHandler() cache.ResourceEventHandler { | ||
| return cache.ResourceEventHandlerFuncs{ | ||
| AddFunc: func(obj interface{}) { c.queue.Add(controllerWorkQueueKey) }, | ||
| UpdateFunc: func(old, new interface{}) { c.queue.Add(controllerWorkQueueKey) }, | ||
| DeleteFunc: func(obj interface{}) { c.queue.Add(controllerWorkQueueKey) }, | ||
| } | ||
| } |
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