| // 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" |
| "time" |
| |
| "github.com/go-logr/logr" |
| apps "k8s.io/api/apps/v1" |
| core "k8s.io/api/core/v1" |
| 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" |
| ) |
| |
| // FetcherReconciler reconciles a Fetcher object |
| type FetcherReconciler struct { |
| client.Client |
| Scheme *runtime.Scheme |
| FileRepo kubernetes.Repo |
| Recorder record.EventRecorder |
| } |
| |
| // +kubebuilder:rbac:groups="",resources=configmaps,verbs=get;list;watch;create;update;patch;delete |
| // +kubebuilder:rbac:groups=operator.skywalking.apache.org,resources=fetchers,verbs=get;list;watch;create;update;patch;delete |
| // +kubebuilder:rbac:groups=operator.skywalking.apache.org,resources=fetchers/status,verbs=get;update;patch |
| |
| func (r *FetcherReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { |
| log := runtimelog.FromContext(ctx) |
| log.Info("=====================fetcher reconcile started================================") |
| |
| fetcher := &operatorv1alpha1.Fetcher{} |
| if err := r.Client.Get(ctx, req.NamespacedName, fetcher); err != nil { |
| return ctrl.Result{}, client.IgnoreNotFound(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: fetcher, |
| GVK: operatorv1alpha1.GroupVersion.WithKind("Fetcher"), |
| Recorder: r.Recorder, |
| } |
| if err := app.ApplyAll(ctx, ff, log); err != nil { |
| _ = r.UpdateStatus(ctx, fetcher, core.ConditionFalse, "Failed to apply resources") |
| return ctrl.Result{}, err |
| } |
| if err := r.UpdateStatus(ctx, fetcher, core.ConditionTrue, "Reconciled all of resources"); err != nil { |
| return ctrl.Result{}, err |
| } |
| return ctrl.Result{RequeueAfter: schedDuration}, nil |
| } |
| |
| func (r *FetcherReconciler) UpdateStatus(ctx context.Context, fetcher *operatorv1alpha1.Fetcher, status core.ConditionStatus, msg string) error { |
| log := runtimelog.FromContext(ctx) |
| |
| if fetcher.Status.Replicas == 0 { |
| fetcher.Status.Replicas = 1 |
| } |
| now := metav1.NewTime(time.Now()) |
| changed := false |
| if len(fetcher.Status.Conditions) < 1 { |
| changed = true |
| fetcher.Status.Conditions = append(fetcher.Status.Conditions, operatorv1alpha1.FetcherCondition{ |
| Type: operatorv1alpha1.FetcherConditionTypeRead, |
| Status: status, |
| Message: msg, |
| LastTransitionTime: now, |
| LastUpdateTime: now, |
| }) |
| } else { |
| current := fetcher.Status.Conditions[0] |
| if current.Status != status || current.Message != msg { |
| changed = true |
| current.Status = status |
| current.Message = msg |
| current.LastUpdateTime = now |
| } |
| } |
| if !changed { |
| return nil |
| } |
| overlay := fetcher.Status |
| if err := r.updateStatus(ctx, fetcher, overlay, log); err != nil { |
| log.Error(err, "failed to update status") |
| return err |
| } |
| return nil |
| } |
| |
| func (r *FetcherReconciler) updateStatus(ctx context.Context, fetcher *operatorv1alpha1.Fetcher, |
| overlay operatorv1alpha1.FetcherStatus, log logr.Logger) error { |
| // avoid resource conflict |
| return retry.RetryOnConflict(retry.DefaultBackoff, func() error { |
| if err := r.Client.Get(ctx, client.ObjectKey{Name: fetcher.Name, Namespace: fetcher.Namespace}, fetcher); err != nil { |
| log.Error(err, "failed to get fetcher") |
| } |
| fetcher.Status = overlay |
| fetcher.Kind = "Fetcher" |
| if err := kubernetes.ApplyOverlay(fetcher, &operatorv1alpha1.Fetcher{Status: overlay}); err != nil { |
| log.Error(err, "failed to apply overlay") |
| } |
| if err := r.Status().Update(ctx, fetcher); err != nil { |
| log.Error(err, "failed to update status of fetcher") |
| } |
| return nil |
| }) |
| } |
| |
| func (r *FetcherReconciler) SetupWithManager(mgr ctrl.Manager) error { |
| return ctrl.NewControllerManagedBy(mgr). |
| For(&operatorv1alpha1.Fetcher{}). |
| Owns(&apps.Deployment{}). |
| Owns(&core.ConfigMap{}). |
| Complete(r) |
| } |