/
fluent_controller_finalizer.go
178 lines (157 loc) · 5.03 KB
/
fluent_controller_finalizer.go
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package controllers
import (
"context"
rbacv1 "k8s.io/api/rbac/v1"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
fluentbitv1alpha2 "github.com/fluent/fluent-operator/v2/apis/fluentbit/v1alpha2"
fluentdv1alpha1 "github.com/fluent/fluent-operator/v2/apis/fluentd/v1alpha1"
"github.com/fluent/fluent-operator/v2/pkg/operator"
)
func (r *FluentBitReconciler) addFinalizer(ctx context.Context, instance *fluentbitv1alpha2.FluentBit) error {
instance.AddFinalizer(fluentbitv1alpha2.FluentBitFinalizerName)
return r.Update(ctx, instance)
}
func (r *FluentBitReconciler) handleFinalizer(ctx context.Context, instance *fluentbitv1alpha2.FluentBit) error {
if !instance.HasFinalizer(fluentbitv1alpha2.FluentBitFinalizerName) {
return nil
}
if err := r.delete(ctx, instance); err != nil {
return err
}
instance.RemoveFinalizer(fluentbitv1alpha2.FluentBitFinalizerName)
return r.Update(ctx, instance)
}
func (r *CollectorReconciler) addFinalizer(ctx context.Context, instance *fluentbitv1alpha2.Collector) error {
instance.AddFinalizer(fluentbitv1alpha2.CollectorFinalizerName)
return r.Update(ctx, instance)
}
func (r *CollectorReconciler) handleFinalizer(ctx context.Context, instance *fluentbitv1alpha2.Collector) error {
if !instance.HasFinalizer(fluentbitv1alpha2.CollectorFinalizerName) {
return nil
}
if err := r.delete(ctx, instance); err != nil {
return err
}
instance.RemoveFinalizer(fluentbitv1alpha2.CollectorFinalizerName)
return r.Update(ctx, instance)
}
func (r *FluentdReconciler) addFinalizer(ctx context.Context, instance *fluentdv1alpha1.Fluentd) error {
instance.AddFinalizer(fluentdv1alpha1.FluentdFinalizerName)
return r.Update(ctx, instance)
}
func (r *FluentdReconciler) handleFinalizer(ctx context.Context, instance *fluentdv1alpha1.Fluentd) error {
if !instance.HasFinalizer(fluentdv1alpha1.FluentdFinalizerName) {
return nil
}
if err := r.delete(ctx, instance); err != nil {
return err
}
instance.RemoveFinalizer(fluentdv1alpha1.FluentdFinalizerName)
return r.Update(ctx, instance)
}
func (r *FluentdReconciler) delete(ctx context.Context, fd *fluentdv1alpha1.Fluentd) error {
sa := corev1.ServiceAccount{
ObjectMeta: metav1.ObjectMeta{
Name: fd.Name,
Namespace: fd.Namespace,
},
}
if err := r.Delete(ctx, &sa); err != nil && !errors.IsNotFound(err) {
return err
}
// TODO: clusterrole, clusterrolebinding
sts := appsv1.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
Name: fd.Name,
Namespace: fd.Namespace,
},
}
if err := r.Delete(ctx, &sts); err != nil && !errors.IsNotFound(err) {
return err
}
ds := appsv1.DaemonSet{
ObjectMeta: metav1.ObjectMeta{
Name: fd.Name,
Namespace: fd.Namespace,
},
}
if err := r.Delete(ctx, &ds); err != nil && !errors.IsNotFound(err) {
return err
}
svc := corev1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: fd.Name,
Namespace: fd.Namespace,
},
}
if err := r.Delete(ctx, &svc); err != nil && !errors.IsNotFound(err) {
return err
}
return nil
}
func (r *FluentdReconciler) mutate(obj client.Object, fd *fluentdv1alpha1.Fluentd) controllerutil.MutateFn {
switch o := obj.(type) {
case *rbacv1.ClusterRole:
expected, _, _ := operator.MakeRBACObjects(fd.Name, fd.Namespace, "fluentd", fd.Spec.RBACRules, fd.Spec.ServiceAccountAnnotations)
return func() error {
o.Rules = expected.Rules
return nil
}
case *corev1.ServiceAccount:
_, expected, _ := operator.MakeRBACObjects(fd.Name, fd.Namespace, "fluentd", fd.Spec.RBACRules, fd.Spec.ServiceAccountAnnotations)
return func() error {
o.Labels = expected.Labels
o.Annotations = expected.Annotations
if err := ctrl.SetControllerReference(fd, o, r.Scheme); err != nil {
return err
}
return nil
}
case *rbacv1.ClusterRoleBinding:
_, _, expected := operator.MakeRBACObjects(fd.Name, fd.Namespace, "fluentd", fd.Spec.RBACRules, fd.Spec.ServiceAccountAnnotations)
return func() error {
o.RoleRef = expected.RoleRef
o.Subjects = expected.Subjects
return nil
}
case *appsv1.StatefulSet:
expected := operator.MakeStatefulSet(*fd)
return func() error {
o.Labels = expected.Labels
o.Spec = expected.Spec
if err := ctrl.SetControllerReference(fd, o, r.Scheme); err != nil {
return err
}
return nil
}
case *appsv1.DaemonSet:
expected := operator.MakeFluentdDaemonSet(*fd)
return func() error {
o.Labels = expected.Labels
o.Spec = expected.Spec
if err := ctrl.SetControllerReference(fd, o, r.Scheme); err != nil {
return err
}
return nil
}
case *corev1.Service:
expected := operator.MakeFluentdService(*fd)
return func() error {
o.Labels = expected.Labels
o.Spec.Selector = expected.Spec.Selector
o.Spec.Ports = expected.Spec.Ports
if err := ctrl.SetControllerReference(fd, o, r.Scheme); err != nil {
return err
}
return nil
}
default:
}
return nil
}