Various reconciliation fixes
- Reduce log noise by logging errors instead of successes - Use context logger provided by controller-runtime - Patch status instead of update to avoid "the object has been modified; please apply your changes to the latest version and try again" - Add finalizer even if object is already under deletion, in case we never got a chance yet - Don't set RequeueAfter on errors since it is ignored anyway [0] [0]: https://github.com/kubernetes-sigs/controller-runtime/issues/617 Change-Id: Ic06aa74f9e1465d3f7e32137559231e940c8a74d
This commit is contained in:
Sean Eagan
parent
234c2320f4
commit
e663f81ff2
1
main.go
1
main.go
@ -76,7 +76,6 @@ func main() {
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if err = (&controllers.VinoReconciler{
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Client: mgr.GetClient(),
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Log: ctrl.Log.WithName("controllers").WithName("Vino"),
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Scheme: mgr.GetScheme(),
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}).SetupWithManager(mgr); err != nil {
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setupLog.Error(err, "unable to create controller", "controller", "Vino")
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@ -50,7 +50,6 @@ const (
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// VinoReconciler reconciles a Vino object
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type VinoReconciler struct {
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client.Client
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Log logr.Logger
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Scheme *runtime.Scheme
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}
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@ -58,9 +57,7 @@ type VinoReconciler struct {
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// +kubebuilder:rbac:groups=airship.airshipit.org,resources=vinoes/status,verbs=get;update;patch
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func (r *VinoReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
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logger := r.Log.WithValues("vino", req.NamespacedName)
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ctx = context.TODO()
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logger := logr.FromContext(ctx)
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vino := &vinov1.Vino{}
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if err := r.Get(ctx, req.NamespacedName, vino); err != nil {
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if apierror.IsNotFound(err) {
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@ -71,24 +68,23 @@ func (r *VinoReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.
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}
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var err error
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if vino.ObjectMeta.DeletionTimestamp.IsZero() && !controllerutil.ContainsFinalizer(vino, vinov1.VinoFinalizer) {
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if !controllerutil.ContainsFinalizer(vino, vinov1.VinoFinalizer) {
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logger.Info("adding finalizer to new vino object")
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controllerutil.AddFinalizer(vino, vinov1.VinoFinalizer)
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err = r.Update(ctx, vino)
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if err != nil {
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if err = r.Update(ctx, vino); err != nil {
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logger.Error(err, "unable to register finalizer")
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return ctrl.Result{}, err
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}
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return ctrl.Result{Requeue: true}, nil
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}
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defer func() {
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if dErr := r.Status().Update(ctx, vino); dErr != nil {
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if dErr := r.patchStatus(ctx, vino); dErr != nil {
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if err != nil {
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err = kerror.NewAggregate([]error{err, dErr})
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}
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err = dErr
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logger.Error(err, "unable to patch status after reconciliation")
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}
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logger.Info("updated vino CR status")
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}()
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if !vino.ObjectMeta.DeletionTimestamp.IsZero() {
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@ -107,7 +103,7 @@ func (r *VinoReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.
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}
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apimeta.SetStatusCondition(&vino.Status.Conditions, readyCondition)
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vino.Status.ConfigMapReady = false
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return ctrl.Result{Requeue: true, RequeueAfter: time.Second * 60}, err
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return ctrl.Result{Requeue: true}, err
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}
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vino.Status.ConfigMapReady = true
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@ -123,7 +119,7 @@ func (r *VinoReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.
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}
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apimeta.SetStatusCondition(&vino.Status.Conditions, readyCondition)
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vino.Status.DaemonSetReady = false
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return ctrl.Result{Requeue: true, RequeueAfter: time.Second * 60}, err
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return ctrl.Result{Requeue: true}, err
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}
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vino.Status.DaemonSetReady = true
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@ -133,9 +129,9 @@ func (r *VinoReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.
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}
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func (r *VinoReconciler) ensureConfigMap(ctx context.Context, name types.NamespacedName, vino *vinov1.Vino) error {
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logger := r.Log.WithValues("vino", name)
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logger := logr.FromContext(ctx)
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generatedCM, err := r.buildConfigMap(name, vino)
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generatedCM, err := r.buildConfigMap(ctx, name, vino)
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if err != nil {
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return err
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}
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@ -164,8 +160,9 @@ func (r *VinoReconciler) ensureConfigMap(ctx context.Context, name types.Namespa
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return nil
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}
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func (r *VinoReconciler) buildConfigMap(name types.NamespacedName, vino *vinov1.Vino) (*corev1.ConfigMap, error) {
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r.Log.Info("Generating new config map for vino object")
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func (r *VinoReconciler) buildConfigMap(ctx context.Context, name types.NamespacedName, vino *vinov1.Vino) (
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*corev1.ConfigMap, error) {
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logr.FromContext(ctx).Info("Generating new config map for vino object")
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data, err := yaml.Marshal(vino.Spec)
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if err != nil {
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@ -184,7 +181,7 @@ func (r *VinoReconciler) buildConfigMap(name types.NamespacedName, vino *vinov1.
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}
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func (r *VinoReconciler) getCurrentConfigMap(ctx context.Context, vino *vinov1.Vino) (*corev1.ConfigMap, error) {
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r.Log.Info("Getting current config map for vino object")
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logr.FromContext(ctx).Info("Getting current config map for vino object")
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cm := &corev1.ConfigMap{}
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err := r.Get(ctx, types.NamespacedName{
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Name: vino.Name,
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@ -202,7 +199,6 @@ func (r *VinoReconciler) getCurrentConfigMap(ctx context.Context, vino *vinov1.V
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func (r *VinoReconciler) setReadyStatus(vino *vinov1.Vino) {
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if vino.Status.ConfigMapReady && vino.Status.DaemonSetReady {
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r.Log.Info("All VINO components are in ready state, setting VINO CR to ready state")
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readyCondition := metav1.Condition{
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Status: metav1.ConditionTrue,
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Reason: vinov1.ReconciliationSucceededReason,
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@ -214,6 +210,15 @@ func (r *VinoReconciler) setReadyStatus(vino *vinov1.Vino) {
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}
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}
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func (r *VinoReconciler) patchStatus(ctx context.Context, vino *vinov1.Vino) error {
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key := client.ObjectKeyFromObject(vino)
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latest := &vinov1.Vino{}
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if err := r.Client.Get(ctx, key, latest); err != nil {
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return err
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}
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return r.Client.Status().Patch(ctx, vino, client.MergeFrom(latest))
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}
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func needsUpdate(generated, current *corev1.ConfigMap) bool {
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for key, value := range generated.Data {
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if current.Data[key] != value {
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@ -229,7 +234,7 @@ func (r *VinoReconciler) ensureDaemonSet(ctx context.Context, vino *vinov1.Vino)
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return err
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}
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r.decorateDaemonSet(ds, vino)
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r.decorateDaemonSet(ctx, ds, vino)
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existDS := &appsv1.DaemonSet{}
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err = r.Get(ctx, types.NamespacedName{Name: ds.Name, Namespace: ds.Namespace}, existDS)
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@ -253,7 +258,7 @@ func (r *VinoReconciler) ensureDaemonSet(ctx context.Context, vino *vinov1.Vino)
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return r.waitDaemonSet(ctx, ds)
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}
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func (r *VinoReconciler) decorateDaemonSet(ds *appsv1.DaemonSet, vino *vinov1.Vino) {
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func (r *VinoReconciler) decorateDaemonSet(ctx context.Context, ds *appsv1.DaemonSet, vino *vinov1.Vino) {
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volume := "vino-spec"
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ds.Spec.Template.Spec.NodeSelector = vino.Spec.NodeSelector.MatchLabels
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@ -287,7 +292,7 @@ func (r *VinoReconciler) decorateDaemonSet(ds *appsv1.DaemonSet, vino *vinov1.Vi
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}
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}
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if !found {
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r.Log.Info("volume mount with vino spec is not found",
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logr.FromContext(ctx).Info("volume mount with vino spec is not found",
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"vino instance", vino.Namespace+"/"+vino.Name,
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"container name", c.Name,
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)
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@ -310,7 +315,7 @@ func (r *VinoReconciler) decorateDaemonSet(ds *appsv1.DaemonSet, vino *vinov1.Vi
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}
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func (r *VinoReconciler) waitDaemonSet(ctx context.Context, ds *appsv1.DaemonSet) error {
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logger := r.Log.WithValues(
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logger := logr.FromContext(ctx).WithValues(
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"daemonset", ds.Namespace+"/"+ds.Name)
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for {
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select {
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@ -342,7 +347,7 @@ func (r *VinoReconciler) waitDaemonSet(ctx context.Context, ds *appsv1.DaemonSet
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func (r *VinoReconciler) daemonSet(ctx context.Context, vino *vinov1.Vino) (*appsv1.DaemonSet, error) {
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dsTemplate := vino.Spec.DaemonSetOptions.Template
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logger := r.Log.WithValues("DaemonSetTemplate", &dsTemplate)
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logger := logr.FromContext(ctx).WithValues("DaemonSetTemplate", dsTemplate)
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cm := &corev1.ConfigMap{}
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if dsTemplate == (vinov1.NamespacedName{}) {
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