jichengzhi commented on code in PR #113: URL: https://github.com/apache/skywalking-swck/pull/113#discussion_r1564785085
########## operator/controllers/operator/eventexporter_controller.go: ########## @@ -0,0 +1,210 @@ +// Licensed to Apache Software Foundation (ASF) under one or more contributor +// license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright +// ownership. Apache Software Foundation (ASF) licenses this file to you 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 operator + +import ( + "context" + "fmt" + "text/template" + + "github.com/go-logr/logr" + l "github.com/sirupsen/logrus" + apps "k8s.io/api/apps/v1" + core "k8s.io/api/core/v1" + apiequal "k8s.io/apimachinery/pkg/api/equality" + apierrors "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/client-go/tools/record" + "k8s.io/client-go/util/retry" + ctrl "sigs.k8s.io/controller-runtime" + "sigs.k8s.io/controller-runtime/pkg/client" + runtimelog "sigs.k8s.io/controller-runtime/pkg/log" + + operatorv1alpha1 "github.com/apache/skywalking-swck/operator/apis/operator/v1alpha1" + "github.com/apache/skywalking-swck/operator/pkg/kubernetes" +) + +// EventExporterReconciler reconciles a EventExporter object +type EventExporterReconciler struct { + client.Client + Scheme *runtime.Scheme + FileRepo kubernetes.Repo + Recorder record.EventRecorder +} + +// +kubebuilder:rbac:groups=operator.skywalking.apache.org,resources=eventexporters,verbs=get;list;watch;create;update;patch;delete +// +kubebuilder:rbac:groups=operator.skywalking.apache.org,resources=eventexporters/status,verbs=get;update;patch +// +kubebuilder:rbac:groups=operator.skywalking.apache.org,resources=eventexporters/finalizers,verbs=update +// +kubebuilder:rbac:groups=apps,resources=deployments,verbs=get;list;watch;create;update;patch;delete +// +kubebuilder:rbac:groups="",resources=configmaps,verbs=get;list +// +kubebuilder:rbac:groups="",resources=events,verbs=create;patch + +func (r *EventExporterReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { + log := runtimelog.FromContext(ctx) + log.Info(fmt.Sprintf("===============eventexporter reconcile started (ns: %s, name: %s)===============", req.Namespace, req.Name)) + + eventExporter := operatorv1alpha1.EventExporter{} + if err := r.Client.Get(ctx, req.NamespacedName, &eventExporter); err != nil { + return ctrl.Result{}, client.IgnoreNotFound(err) + } + + if _, err := r.overlayData(ctx, log, &eventExporter); err != nil { + l.Error(err, "failed to overlay eventexporter's configMap") + return ctrl.Result{}, err + } + + ff, err := r.FileRepo.GetFilesRecursive("templates") + if err != nil { + log.Error(err, "failed to load resource templates") + return ctrl.Result{}, err + } + + app := kubernetes.Application{ + Client: r.Client, + FileRepo: r.FileRepo, + CR: &eventExporter, + GVK: operatorv1alpha1.GroupVersion.WithKind("EventExporter"), + Recorder: r.Recorder, + TmplFunc: template.FuncMap{ + "md5Data": func() string { return MD5Hash(eventExporter.Spec.Config) }, + }, + } + + if err := app.ApplyAll(ctx, ff, log); err != nil { + return ctrl.Result{}, err + } + + if err := r.checkState(ctx, log, &eventExporter); err != nil { + l.Error(err, "failed to check sub resources state") + return ctrl.Result{}, err + } + + return ctrl.Result{RequeueAfter: schedDuration}, nil + +} + +func (r *EventExporterReconciler) overlayData(ctx context.Context, log logr.Logger, eventExporter *operatorv1alpha1.EventExporter) (changed bool, err error) { + + configmap := core.ConfigMap{} + err = r.Client.Get(ctx, client.ObjectKey{Namespace: eventExporter.Namespace, Name: eventExporter.Name}, &configmap) + if err != nil && !apierrors.IsNotFound(err) { + log.Error(err, "failed to get the eventexporter's configmap") + return false, err + } + + newMd5 := MD5Hash(eventExporter.Spec.Config) + oldMd5 := MD5Hash("") + if !apierrors.IsNotFound(err) { + oldMd5 = configmap.Labels["md5-data"] + } + + if newMd5 == oldMd5 { + log.Info("eventexporter configuration keeps the same as before") + return false, nil + } + + if !apierrors.IsNotFound(err) { + if err = r.Client.Delete(ctx, &configmap); err != nil { + log.Error(err, "failed to delete eventexporter's configmap") + return true, err + } + } + + configmap = core.ConfigMap{ + ObjectMeta: metav1.ObjectMeta{ + Name: eventExporter.Name, + Namespace: eventExporter.Namespace, + OwnerReferences: []metav1.OwnerReference{ + { + APIVersion: eventExporter.APIVersion, + Kind: eventExporter.Kind, + Name: eventExporter.Name, + UID: eventExporter.UID, + }, + }, + Labels: map[string]string{ + "version": eventExporter.Spec.Version, + "md5-data": newMd5, + }, + }, + Data: map[string]string{"config.yaml": eventExporter.Spec.Config}, Review Comment: Thx, updated! -- This is an automated message from the Apache Git Service. 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