|
| 1 | +package controller |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + "github.com/go-logr/logr" |
| 7 | + ramenv1alpha1 "github.com/ramendr/ramen/api/v1alpha1" |
| 8 | + "github.com/red-hat-storage/ocs-client-operator/api/v1alpha1" |
| 9 | + "github.com/red-hat-storage/ocs-client-operator/pkg/utils" |
| 10 | + providerclient "github.com/red-hat-storage/ocs-operator/services/provider/api/v4/client" |
| 11 | + "k8s.io/apimachinery/pkg/api/meta" |
| 12 | + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 13 | + "k8s.io/apimachinery/pkg/runtime" |
| 14 | + ctrl "sigs.k8s.io/controller-runtime" |
| 15 | + "sigs.k8s.io/controller-runtime/pkg/builder" |
| 16 | + "sigs.k8s.io/controller-runtime/pkg/client" |
| 17 | + "sigs.k8s.io/controller-runtime/pkg/event" |
| 18 | + "sigs.k8s.io/controller-runtime/pkg/handler" |
| 19 | + "sigs.k8s.io/controller-runtime/pkg/log" |
| 20 | + "sigs.k8s.io/controller-runtime/pkg/predicate" |
| 21 | + "sigs.k8s.io/controller-runtime/pkg/reconcile" |
| 22 | + "slices" |
| 23 | +) |
| 24 | + |
| 25 | +const ( |
| 26 | + MaintenanceModeCRDName = "maintenancemodes.ramendr.openshift.io" |
| 27 | +) |
| 28 | + |
| 29 | +// MaintenanceModeReconciler reconciles a ClusterVersion object |
| 30 | +type MaintenanceModeReconciler struct { |
| 31 | + client.Client |
| 32 | + Scheme *runtime.Scheme |
| 33 | + |
| 34 | + log logr.Logger |
| 35 | + ctx context.Context |
| 36 | +} |
| 37 | + |
| 38 | +// SetupWithManager sets up the controller with the Manager. |
| 39 | +func (r *MaintenanceModeReconciler) SetupWithManager(mgr ctrl.Manager) error { |
| 40 | + generationChangePredicate := predicate.GenerationChangedPredicate{} |
| 41 | + maintenanceModeChangedPredicate := predicate.Funcs{ |
| 42 | + UpdateFunc: func(e event.UpdateEvent) bool { |
| 43 | + if e.ObjectOld == nil || e.ObjectNew == nil { |
| 44 | + return false |
| 45 | + } |
| 46 | + oldObj := e.ObjectOld.(*v1alpha1.StorageClient) |
| 47 | + newObj := e.ObjectNew.(*v1alpha1.StorageClient) |
| 48 | + return oldObj.Status.InMaintenanceMode != newObj.Status.InMaintenanceMode |
| 49 | + }, |
| 50 | + } |
| 51 | + return ctrl.NewControllerManagedBy(mgr). |
| 52 | + Named("MaintenanceMode"). |
| 53 | + Watches( |
| 54 | + &ramenv1alpha1.MaintenanceMode{}, |
| 55 | + &handler.EnqueueRequestForObject{}, |
| 56 | + builder.WithPredicates(generationChangePredicate), |
| 57 | + ). |
| 58 | + Watches( |
| 59 | + &v1alpha1.StorageClaim{}, |
| 60 | + &handler.EnqueueRequestForObject{}, |
| 61 | + builder.WithPredicates(generationChangePredicate), |
| 62 | + ). |
| 63 | + Watches( |
| 64 | + &v1alpha1.StorageClient{}, |
| 65 | + &handler.EnqueueRequestForObject{}, |
| 66 | + builder.WithPredicates( |
| 67 | + generationChangePredicate, |
| 68 | + maintenanceModeChangedPredicate, |
| 69 | + ), |
| 70 | + ). |
| 71 | + Complete(r) |
| 72 | +} |
| 73 | + |
| 74 | +//+kubebuilder:rbac:groups=ramendr.openshift.io,resources=maintenancemodes,verbs=get;list;update;create;watch;delete |
| 75 | +//+kubebuilder:rbac:groups=ramendr.openshift.io,resources=maintenancemodes/status,verbs=get;update;patch |
| 76 | +//+kubebuilder:rbac:groups=ocs.openshift.io,resources=storageclients;storageclaims,verbs=get;list;watch |
| 77 | + |
| 78 | +func (r *MaintenanceModeReconciler) Reconcile(ctx context.Context, _ ctrl.Request) (ctrl.Result, error) { |
| 79 | + r.ctx = ctx |
| 80 | + r.log = log.FromContext(ctx) |
| 81 | + r.log.Info("Starting reconcile") |
| 82 | + |
| 83 | + nameToStorageClient := map[string]*v1alpha1.StorageClient{} |
| 84 | + |
| 85 | + maintenanceModes := &ramenv1alpha1.MaintenanceModeList{} |
| 86 | + if err := r.list(maintenanceModes); err != nil { |
| 87 | + r.log.Error(err, "failed to list the MaintenanceMode CRs") |
| 88 | + return reconcile.Result{}, err |
| 89 | + } |
| 90 | + |
| 91 | + for i := range maintenanceModes.Items { |
| 92 | + mm := &maintenanceModes.Items[i] |
| 93 | + sc := &v1alpha1.StorageClaim{} |
| 94 | + // MMode's TargetID is replicationID, which in our case is storageClaim name |
| 95 | + sc.Name = mm.Spec.TargetID |
| 96 | + if err := r.get(sc); err != nil { |
| 97 | + return ctrl.Result{}, err |
| 98 | + } |
| 99 | + clientName := sc.Spec.StorageClient |
| 100 | + if clientName == "" { |
| 101 | + return ctrl.Result{}, fmt.Errorf("StorageClaim %s does not have a StorageClient defined", sc.Name) |
| 102 | + } |
| 103 | + if nameToStorageClient[clientName] == nil { |
| 104 | + storageClient := &v1alpha1.StorageClient{} |
| 105 | + storageClient.Name = clientName |
| 106 | + if err := r.get(storageClient); err != nil { |
| 107 | + return ctrl.Result{}, err |
| 108 | + } |
| 109 | + nameToStorageClient[clientName] = storageClient |
| 110 | + } |
| 111 | + if nameToStorageClient[clientName].Status.InMaintenanceMode { |
| 112 | + if err := r.updateStatusCompletedForMM(mm); err != nil { |
| 113 | + return ctrl.Result{}, fmt.Errorf("failed to update status for MaintenanceMode %s: %w", mm.Name, err) |
| 114 | + } |
| 115 | + } |
| 116 | + } |
| 117 | + |
| 118 | + storageClients := &v1alpha1.StorageClientList{} |
| 119 | + if err := r.list(storageClients); err != nil { |
| 120 | + r.log.Error(err, "failed to list the Storage Clients") |
| 121 | + return reconcile.Result{}, err |
| 122 | + } |
| 123 | + |
| 124 | + for i := range storageClients.Items { |
| 125 | + storageClient := &storageClients.Items[i] |
| 126 | + _, needsMaintenanceMode := nameToStorageClient[storageClient.Name] |
| 127 | + if needsMaintenanceMode != storageClient.Status.InMaintenanceMode { |
| 128 | + if err := r.toggleMaintenanceModeForClient(storageClient, needsMaintenanceMode); err != nil { |
| 129 | + return ctrl.Result{}, err |
| 130 | + } |
| 131 | + } |
| 132 | + } |
| 133 | + |
| 134 | + return ctrl.Result{}, nil |
| 135 | +} |
| 136 | + |
| 137 | +func (r *MaintenanceModeReconciler) toggleMaintenanceModeForClient(storageClient *v1alpha1.StorageClient, enable bool) error { |
| 138 | + providerClient, err := providerclient.NewProviderClient( |
| 139 | + r.ctx, |
| 140 | + storageClient.Spec.StorageProviderEndpoint, |
| 141 | + utils.OcsClientTimeout, |
| 142 | + ) |
| 143 | + if err != nil { |
| 144 | + return fmt.Errorf( |
| 145 | + "failed to create provider client with endpoint %v: %v", |
| 146 | + storageClient.Spec.StorageProviderEndpoint, |
| 147 | + err, |
| 148 | + ) |
| 149 | + } |
| 150 | + // Close client-side connections. |
| 151 | + defer providerClient.Close() |
| 152 | + |
| 153 | + _, err = providerClient.RequestMaintenanceMode(r.ctx, storageClient.Status.ConsumerID, enable) |
| 154 | + if err != nil { |
| 155 | + return fmt.Errorf("failed to Request maintenance mode: %v", err) |
| 156 | + } |
| 157 | + return nil |
| 158 | +} |
| 159 | + |
| 160 | +func (r *MaintenanceModeReconciler) updateStatusCompletedForMM(maintenanceMode *ramenv1alpha1.MaintenanceMode) error { |
| 161 | + // Ramen reads the State and Conditions in order to determine that the MaintenanceMode is Completed |
| 162 | + |
| 163 | + condition := metav1.Condition{ |
| 164 | + Type: string(ramenv1alpha1.MModeConditionFailoverActivated), |
| 165 | + Status: metav1.ConditionTrue, |
| 166 | + Reason: string(ramenv1alpha1.MModeStateCompleted), |
| 167 | + ObservedGeneration: maintenanceMode.Generation, |
| 168 | + } |
| 169 | + |
| 170 | + updateRequired := false |
| 171 | + updateRequired = updateRequired || (maintenanceMode.Status.State != ramenv1alpha1.MModeStateCompleted) |
| 172 | + updateRequired = updateRequired || slices.Contains(maintenanceMode.Status.Conditions, condition) |
| 173 | + |
| 174 | + if updateRequired { |
| 175 | + maintenanceMode.Status.State = ramenv1alpha1.MModeStateCompleted |
| 176 | + maintenanceMode.Status.ObservedGeneration = maintenanceMode.Generation |
| 177 | + meta.SetStatusCondition(&maintenanceMode.Status.Conditions, condition) |
| 178 | + |
| 179 | + if err := r.Client.Status().Update(r.ctx, maintenanceMode); err != nil { |
| 180 | + return err |
| 181 | + } |
| 182 | + } |
| 183 | + return nil |
| 184 | +} |
| 185 | + |
| 186 | +func (r *MaintenanceModeReconciler) list(obj client.ObjectList, opts ...client.ListOption) error { |
| 187 | + return r.List(r.ctx, obj, opts...) |
| 188 | +} |
| 189 | + |
| 190 | +func (r *MaintenanceModeReconciler) get(obj client.Object, opts ...client.GetOption) error { |
| 191 | + return r.Get(r.ctx, client.ObjectKeyFromObject(obj), obj, opts...) |
| 192 | +} |
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