6 k8sv1alpha1 "ovn4nfv-k8s-plugin/pkg/apis/k8s/v1alpha1"
7 "github.com/go-logr/logr"
8 "k8s.io/apimachinery/pkg/api/errors"
9 "k8s.io/apimachinery/pkg/runtime"
10 "ovn4nfv-k8s-plugin/internal/pkg/ovn"
11 "ovn4nfv-k8s-plugin/pkg/utils"
13 "sigs.k8s.io/controller-runtime/pkg/client"
14 "sigs.k8s.io/controller-runtime/pkg/controller"
15 "sigs.k8s.io/controller-runtime/pkg/handler"
16 "sigs.k8s.io/controller-runtime/pkg/manager"
17 "sigs.k8s.io/controller-runtime/pkg/reconcile"
18 logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"
19 "sigs.k8s.io/controller-runtime/pkg/source"
22 var log = logf.Log.WithName("network_controller")
24 // Add creates a new Network Controller and adds it to the Manager. The Manager will set fields on the Controller
25 // and Start it when the Manager is Started.
26 func Add(mgr manager.Manager) error {
27 return add(mgr, newReconciler(mgr))
30 // newReconciler returns a new reconcile.Reconciler
31 func newReconciler(mgr manager.Manager) reconcile.Reconciler {
32 return &ReconcileNetwork{client: mgr.GetClient(), scheme: mgr.GetScheme()}
35 // add adds a new Controller to mgr with r as the reconcile.Reconciler
36 func add(mgr manager.Manager, r reconcile.Reconciler) error {
37 // Create a new controller
38 c, err := controller.New("network-controller", mgr, controller.Options{Reconciler: r})
42 // Watch for changes to primary resource Network
43 err = c.Watch(&source.Kind{Type: &k8sv1alpha1.Network{}}, &handler.EnqueueRequestForObject{})
51 // blank assignment to verify that ReconcileNetwork implements reconcile.Reconciler
52 var _ reconcile.Reconciler = &ReconcileNetwork{}
54 // ReconcileNetwork reconciles a Network object
55 type ReconcileNetwork struct {
56 // This client, initialized using mgr.Client() above, is a split client
57 // that reads objects from the cache and writes to the apiserver
59 scheme *runtime.Scheme
61 type reconcileFun func(instance *k8sv1alpha1.Network, reqLogger logr.Logger) error
63 // Reconcile reads that state of the cluster for a Network object and makes changes based on the state read
64 // and what is in the Network.Spec
65 // The Controller will requeue the Request to be processed again if the returned error is non-nil or
66 // Result.Requeue is true, otherwise upon completion it will remove the work from the queue.
67 func (r *ReconcileNetwork) Reconcile(request reconcile.Request) (reconcile.Result, error) {
68 reqLogger := log.WithValues("Request.Namespace", request.Namespace, "Request.Name", request.Name)
69 reqLogger.V(1).Info("Reconciling Network")
71 // Fetch the Network instance
72 instance := &k8sv1alpha1.Network{}
73 err := r.client.Get(context.TODO(), request.NamespacedName, instance)
75 if errors.IsNotFound(err) {
76 // Request object not found, could have been deleted after reconcile request.
77 // Owned objects are automatically garbage collected. For additional cleanup logic use finalizers.
78 // Return and don't requeue
79 reqLogger.V(1).Info("Network Object not found")
80 return reconcile.Result{}, nil
82 // Error reading the object - requeue the request.
83 return reconcile.Result{}, err
85 for _, fun := range []reconcileFun{
86 r.reconcileFinalizers,
89 if err = fun(instance, reqLogger); err != nil {
90 return reconcile.Result{}, err
93 return reconcile.Result{}, nil
97 nfnNetworkFinalizer = "nfnCleanUpNetwork"
100 func (r *ReconcileNetwork) createNetwork(cr *k8sv1alpha1.Network, reqLogger logr.Logger) error {
102 if !cr.DeletionTimestamp.IsZero() {
103 // Marked for deletion
107 case cr.Spec.CniType == "ovn4nfv":
108 ovnCtl, err := ovn.GetOvnController()
112 err = ovnCtl.CreateNetwork(cr)
113 if err != nil && !reflect.DeepEqual(err, fmt.Errorf("LS exists")) {
115 reqLogger.Error(err, "Error Creating Network")
116 cr.Status.State = k8sv1alpha1.CreateInternalError
118 cr.Status.State = k8sv1alpha1.Created
120 err = r.client.Status().Update(context.TODO(), cr)
124 // If OVN internal error don't requeue
126 // Add other CNI types here
128 reqLogger.Info("CNI type not supported", "name", cr.Spec.CniType)
129 return fmt.Errorf("CNI type not supported")
133 func (r *ReconcileNetwork) deleteNetwork(cr *k8sv1alpha1.Network, reqLogger logr.Logger) error {
136 case cr.Spec.CniType == "ovn4nfv":
137 ovnCtl, err := ovn.GetOvnController()
141 err = ovnCtl.DeleteNetwork(cr)
144 reqLogger.Error(err, "Error Delete Network")
145 cr.Status.State = k8sv1alpha1.DeleteInternalError
146 err = r.client.Status().Update(context.TODO(), cr)
151 // If OVN internal error don't requeue
153 // Add other CNI types here
155 reqLogger.Info("CNI type not supported", "name", cr.Spec.CniType)
156 return fmt.Errorf("CNI type not supported")
159 func (r *ReconcileNetwork) reconcileFinalizers(instance *k8sv1alpha1.Network, reqLogger logr.Logger) (err error) {
161 if !instance.DeletionTimestamp.IsZero() {
162 // Instance marked for deletion
163 if utils.Contains(instance.ObjectMeta.Finalizers, nfnNetworkFinalizer) {
164 reqLogger.V(1).Info("Finalizer found - delete network")
165 if err = r.deleteNetwork(instance, reqLogger); err != nil {
166 reqLogger.Error(err, "Delete network")
168 // Remove the finalizer even if Delete Network fails. Fatal error retry will not resolve
169 instance.ObjectMeta.Finalizers = utils.Remove(instance.ObjectMeta.Finalizers, nfnNetworkFinalizer)
170 if err = r.client.Update(context.TODO(), instance); err != nil {
171 reqLogger.Error(err, "Removing Finalize")
177 // If finalizer doesn't exist add it
178 if !utils.Contains(instance.GetFinalizers(), nfnNetworkFinalizer) {
179 instance.SetFinalizers(append(instance.GetFinalizers(), nfnNetworkFinalizer))
180 if err = r.client.Update(context.TODO(), instance); err != nil {
181 reqLogger.Error(err, "Adding Finalize")
184 reqLogger.V(1).Info("Finalizer added")