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Signed-off-by: Bence Csati <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| dependencies: | ||
| - name: logging-operator-crds | ||
| repository: "" | ||
| version: 0.0.0 | ||
| digest: sha256:cdfb5cdd4a7897d730175d7bfeb884fbaec8efcfdef1130680792abd9bff5a72 | ||
| generated: "2024-11-28T16:10:58.540563+01:00" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| // Copyright © 2024 Kube logging authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package controllers | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
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| "github.com/go-logr/logr" | ||
| corev1 "k8s.io/api/core/v1" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" | ||
| "sigs.k8s.io/controller-runtime/pkg/reconcile" | ||
|
|
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| telemetry_controller "github.com/kube-logging/logging-operator/pkg/resources/telemetry-controller" | ||
| "github.com/kube-logging/logging-operator/pkg/sdk/logging/api/v1beta1" | ||
| loggingv1beta1 "github.com/kube-logging/logging-operator/pkg/sdk/logging/api/v1beta1" | ||
| ) | ||
|
|
||
| const ( | ||
| TelemetryControllerFinalizer = "telemetrycontroller.logging.banzaicloud.io/finalizer" | ||
| ) | ||
|
|
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| // +kubebuilder:rbac:groups=telemetry.kube-logging.dev,resources=collectors;tenants;subscriptions;outputs;bridges;,verbs=get;list;watch;create;update;patch;delete | ||
|
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| func NewTelemetryControllerReconciler(client client.Client, log logr.Logger) *TelemetryControllerReconciler { | ||
| return &TelemetryControllerReconciler{ | ||
| Client: client, | ||
| Log: log, | ||
| } | ||
| } | ||
|
|
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| // TelemetryControllerReconciler reconciles Logging resources for the Telemetry controller | ||
| type TelemetryControllerReconciler struct { | ||
| client.Client | ||
| Log logr.Logger | ||
| } | ||
|
|
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| func (r *TelemetryControllerReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| log := r.Log.WithValues("telemetry-controller", req.Name) | ||
|
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| var logging loggingv1beta1.Logging | ||
| if err := r.Client.Get(ctx, req.NamespacedName, &logging); err != nil { | ||
| return reconcile.Result{}, client.IgnoreNotFound(err) | ||
| } | ||
|
|
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| if logging.Spec.RouteConfig.EnableTelemetryControllerRoute { | ||
| log.Info("Reconciling Logging resource for Telemetry controller", "name", logging.Name) | ||
|
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| var objectsToCreate []client.Object | ||
| objectsToCreate = append(objectsToCreate, telemetry_controller.CreateCollector(&logging)) | ||
| objectsToCreate = append(objectsToCreate, telemetry_controller.CreateOutput(&logging)) | ||
| objectsToCreate = append(objectsToCreate, telemetry_controller.CreateSubscription(&logging)) | ||
| objectsToCreate = append(objectsToCreate, telemetry_controller.CreateTenant(&logging)) | ||
|
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| if logging.ObjectMeta.DeletionTimestamp.IsZero() { | ||
| if !controllerutil.ContainsFinalizer(&logging, TelemetryControllerFinalizer) { | ||
| r.Log.Info("adding telemetrycontroller finalizer") | ||
| controllerutil.AddFinalizer(&logging, TelemetryControllerFinalizer) | ||
| if err := r.Client.Update(ctx, &logging); err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
| } else { | ||
| // The object is being deleted | ||
| if controllerutil.ContainsFinalizer(&logging, TelemetryControllerFinalizer) { | ||
| if err := r.deleteTelemetryControllerResources(ctx, log, &objectsToCreate); err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
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| r.Log.Info("removing telemetrycontroller finalizer") | ||
| controllerutil.RemoveFinalizer(&logging, TelemetryControllerFinalizer) | ||
| if err := r.Client.Update(ctx, &logging); err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
|
|
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| return ctrl.Result{}, nil | ||
| } | ||
| if err := r.isAggregatorReady(ctx, log, logging); err != nil { | ||
| return ctrl.Result{RequeueAfter: 5}, err | ||
| } | ||
|
|
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| if err := r.deployTelemetryControllerResources(ctx, log, &objectsToCreate); err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
|
|
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| return ctrl.Result{}, nil | ||
| } | ||
|
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| func SetupTelemetryControllerWithManager(mgr ctrl.Manager, logger logr.Logger) error { | ||
| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&loggingv1beta1.Logging{}). | ||
| Named("telemetrycontroller"). | ||
| Complete(NewTelemetryControllerReconciler(mgr.GetClient(), logger)) | ||
| } | ||
|
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| func (r *TelemetryControllerReconciler) deployTelemetryControllerResources(ctx context.Context, logger logr.Logger, objectsToCreate *[]client.Object) error { | ||
| logger.Info("Deploying Telemetry controller resources") | ||
|
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| for _, obj := range *objectsToCreate { | ||
| key := client.ObjectKeyFromObject(obj) | ||
| if err := r.Client.Get(ctx, key, obj); err != nil { | ||
| if !apierrors.IsNotFound(err) { | ||
| logger.Error(err, "Failed to get object", "object", obj.GetName()) | ||
| return err | ||
| } | ||
| if err := r.Client.Create(ctx, obj); err != nil { | ||
| logger.Error(err, "Failed to create object", "object", obj.GetName()) | ||
| return err | ||
| } | ||
| logger.Info("Created object", "object", obj.GetName()) | ||
| } else { | ||
| logger.Info("Object already exists", "object", obj.GetName()) | ||
| } | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
|
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| func (r *TelemetryControllerReconciler) deleteTelemetryControllerResources(ctx context.Context, logger logr.Logger, objectsToCreate *[]client.Object) error { | ||
| logger.Info("Logging resource is being deleted, deleting Telemetry controller resources") | ||
|
|
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| for _, obj := range *objectsToCreate { | ||
| if err := r.Client.Delete(ctx, obj); err != nil { | ||
| logger.Error(err, "Failed to delete object", "object", obj.GetName()) | ||
| return err | ||
| } | ||
| logger.Info("Deleted object", "object", obj.GetName()) | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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| func (r *TelemetryControllerReconciler) isAggregatorReady(ctx context.Context, logger logr.Logger, logging v1beta1.Logging) error { | ||
| logger.Info("Waiting for aggregator pod to be ready") | ||
|
|
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| podName := fmt.Sprintf("%s-fluentd-0", logging.Name) | ||
| pod := &corev1.Pod{} | ||
| err := r.Client.Get(ctx, client.ObjectKey{Name: podName, Namespace: logging.Spec.ControlNamespace}, pod) | ||
| if err != nil { | ||
| if apierrors.IsNotFound(err) { | ||
| return fmt.Errorf("aggregator pod: %s not found", podName) | ||
| } | ||
|
|
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| r.Log.Error(err, "failed to get aggregator pod", "pod", podName) | ||
| return err | ||
| } | ||
|
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| for _, condition := range pod.Status.Conditions { | ||
| if condition.Type == corev1.PodReady && condition.Status == corev1.ConditionTrue { | ||
| r.Log.Info("Aggregator pod is ready", "pod", pod.Name) | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| return fmt.Errorf("aggregator pod: %s is not ready", podName) | ||
| } |
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