|
| 1 | +// Copyright The OpenTelemetry Authors |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +// Package controllers contains the main controller, where the reconciliation starts. |
| 16 | +package controllers |
| 17 | + |
| 18 | +import ( |
| 19 | + "context" |
| 20 | + |
| 21 | + "github.com/go-logr/logr" |
| 22 | + monitoringv1 "github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring/v1" |
| 23 | + appsv1 "k8s.io/api/apps/v1" |
| 24 | + corev1 "k8s.io/api/core/v1" |
| 25 | + policyV1 "k8s.io/api/policy/v1" |
| 26 | + apierrors "k8s.io/apimachinery/pkg/api/errors" |
| 27 | + "k8s.io/apimachinery/pkg/runtime" |
| 28 | + "k8s.io/client-go/tools/record" |
| 29 | + ctrl "sigs.k8s.io/controller-runtime" |
| 30 | + "sigs.k8s.io/controller-runtime/pkg/client" |
| 31 | + |
| 32 | + "github.com/open-telemetry/opentelemetry-operator/apis/v1alpha1" |
| 33 | + "github.com/open-telemetry/opentelemetry-operator/apis/v1beta1" |
| 34 | + "github.com/open-telemetry/opentelemetry-operator/internal/config" |
| 35 | + "github.com/open-telemetry/opentelemetry-operator/internal/manifests/targetallocator" |
| 36 | + taStatus "github.com/open-telemetry/opentelemetry-operator/internal/status/targetallocator" |
| 37 | + "github.com/open-telemetry/opentelemetry-operator/pkg/featuregate" |
| 38 | +) |
| 39 | + |
| 40 | +// TargetAllocatorReconciler reconciles a TargetAllocator object. |
| 41 | +type TargetAllocatorReconciler struct { |
| 42 | + client.Client |
| 43 | + recorder record.EventRecorder |
| 44 | + scheme *runtime.Scheme |
| 45 | + log logr.Logger |
| 46 | + config config.Config |
| 47 | +} |
| 48 | + |
| 49 | +// TargetAllocatorReconcilerParams is the set of options to build a new TargetAllocatorReconciler. |
| 50 | +type TargetAllocatorReconcilerParams struct { |
| 51 | + client.Client |
| 52 | + Recorder record.EventRecorder |
| 53 | + Scheme *runtime.Scheme |
| 54 | + Log logr.Logger |
| 55 | + Config config.Config |
| 56 | +} |
| 57 | + |
| 58 | +func (r *TargetAllocatorReconciler) getParams(instance v1alpha1.TargetAllocator) targetallocator.Params { |
| 59 | + p := targetallocator.Params{ |
| 60 | + Config: r.config, |
| 61 | + Client: r.Client, |
| 62 | + Log: r.log, |
| 63 | + Scheme: r.scheme, |
| 64 | + Recorder: r.recorder, |
| 65 | + TargetAllocator: instance, |
| 66 | + } |
| 67 | + |
| 68 | + return p |
| 69 | +} |
| 70 | + |
| 71 | +// NewTargetAllocatorReconciler creates a new reconciler for TargetAllocator objects. |
| 72 | +func NewTargetAllocatorReconciler( |
| 73 | + client client.Client, |
| 74 | + scheme *runtime.Scheme, |
| 75 | + recorder record.EventRecorder, |
| 76 | + config config.Config, |
| 77 | + logger logr.Logger, |
| 78 | +) *TargetAllocatorReconciler { |
| 79 | + return &TargetAllocatorReconciler{ |
| 80 | + Client: client, |
| 81 | + log: logger, |
| 82 | + scheme: scheme, |
| 83 | + config: config, |
| 84 | + recorder: recorder, |
| 85 | + } |
| 86 | +} |
| 87 | + |
| 88 | +// TODO: Uncomment the lines below after enabling the TA controller in main.go |
| 89 | +// // +kubebuilder:rbac:groups="",resources=pods;configmaps;services;serviceaccounts;persistentvolumeclaims;persistentvolumes,verbs=get;list;watch;create;update;patch;delete |
| 90 | +// // +kubebuilder:rbac:groups="",resources=events,verbs=create;patch |
| 91 | +// // +kubebuilder:rbac:groups=apps,resources=deployments,verbs=get;list;watch;create;update;patch;delete |
| 92 | +// // +kubebuilder:rbac:groups=policy,resources=poddisruptionbudgets,verbs=get;list;watch;create;update;patch;delete |
| 93 | +// // +kubebuilder:rbac:groups=monitoring.coreos.com,resources=servicemonitors;podmonitors,verbs=get;list;watch;create;update;patch;delete |
| 94 | +// // +kubebuilder:rbac:groups=opentelemetry.io,resources=opentelemetrycollectors,verbs=get;list;watch;update;patch |
| 95 | +// // +kubebuilder:rbac:groups=opentelemetry.io,resources=targetallocators,verbs=get;list;watch;update;patch |
| 96 | +// // +kubebuilder:rbac:groups=opentelemetry.io,resources=targetallocators/status,verbs=get;update;patch |
| 97 | + |
| 98 | +// Reconcile the current state of a TargetAllocator resource with the desired state. |
| 99 | +func (r *TargetAllocatorReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { |
| 100 | + log := r.log.WithValues("targetallocator", req.NamespacedName) |
| 101 | + |
| 102 | + var instance v1alpha1.TargetAllocator |
| 103 | + if err := r.Client.Get(ctx, req.NamespacedName, &instance); err != nil { |
| 104 | + if !apierrors.IsNotFound(err) { |
| 105 | + log.Error(err, "unable to fetch TargetAllocator") |
| 106 | + } |
| 107 | + |
| 108 | + // we'll ignore not-found errors, since they can't be fixed by an immediate |
| 109 | + // requeue (we'll need to wait for a new notification), and we can get them |
| 110 | + // on deleted requests. |
| 111 | + return ctrl.Result{}, client.IgnoreNotFound(err) |
| 112 | + } |
| 113 | + // We have a deletion, short circuit and let the deletion happen |
| 114 | + if deletionTimestamp := instance.GetDeletionTimestamp(); deletionTimestamp != nil { |
| 115 | + return ctrl.Result{}, nil |
| 116 | + } |
| 117 | + |
| 118 | + if instance.Spec.ManagementState == v1beta1.ManagementStateUnmanaged { |
| 119 | + log.Info("Skipping reconciliation for unmanaged TargetAllocator resource", "name", req.String()) |
| 120 | + // Stop requeueing for unmanaged TargetAllocator custom resources |
| 121 | + return ctrl.Result{}, nil |
| 122 | + } |
| 123 | + |
| 124 | + params := r.getParams(instance) |
| 125 | + desiredObjects, buildErr := BuildTargetAllocator(params) |
| 126 | + if buildErr != nil { |
| 127 | + return ctrl.Result{}, buildErr |
| 128 | + } |
| 129 | + |
| 130 | + err := reconcileDesiredObjects(ctx, r.Client, log, ¶ms.TargetAllocator, params.Scheme, desiredObjects, nil) |
| 131 | + return taStatus.HandleReconcileStatus(ctx, log, params, err) |
| 132 | +} |
| 133 | + |
| 134 | +// SetupWithManager tells the manager what our controller is interested in. |
| 135 | +func (r *TargetAllocatorReconciler) SetupWithManager(mgr ctrl.Manager) error { |
| 136 | + builder := ctrl.NewControllerManagedBy(mgr). |
| 137 | + For(&v1alpha1.TargetAllocator{}). |
| 138 | + Owns(&corev1.ConfigMap{}). |
| 139 | + Owns(&corev1.ServiceAccount{}). |
| 140 | + Owns(&corev1.Service{}). |
| 141 | + Owns(&appsv1.Deployment{}). |
| 142 | + Owns(&corev1.PersistentVolume{}). |
| 143 | + Owns(&corev1.PersistentVolumeClaim{}). |
| 144 | + Owns(&policyV1.PodDisruptionBudget{}) |
| 145 | + |
| 146 | + if featuregate.PrometheusOperatorIsAvailable.IsEnabled() { |
| 147 | + builder.Owns(&monitoringv1.ServiceMonitor{}) |
| 148 | + builder.Owns(&monitoringv1.PodMonitor{}) |
| 149 | + } |
| 150 | + |
| 151 | + return builder.Complete(r) |
| 152 | +} |
0 commit comments