karmada/pkg/controllers/propagationpolicy/propagationpolicy_controlle...

59 lines
2.0 KiB
Go

package propagationpolicy
import (
"context"
"fmt"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/klog/v2"
"sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/karmada-io/karmada/pkg/apis/policy/v1alpha1"
"github.com/karmada-io/karmada/pkg/util/helper"
)
// Controller is to sync PropagationPolicy.
type Controller struct {
client.Client
}
// Reconcile performs a full reconciliation for the object referred to by the Request.
// The Controller will requeue the Request to be processed again if an error is non-nil or
// Result.Requeue is true, otherwise upon completion it will remove the work from the queue.
func (c *Controller) Reconcile(req controllerruntime.Request) (controllerruntime.Result, error) {
klog.V(4).Infof("Reconciling PropagationPolicy %s.", req.NamespacedName.String())
policy := &v1alpha1.PropagationPolicy{}
if err := c.Client.Get(context.TODO(), req.NamespacedName, policy); err != nil {
// The resource may no longer exist, in which case we stop processing.
if errors.IsNotFound(err) {
return controllerruntime.Result{}, nil
}
return controllerruntime.Result{Requeue: true}, err
}
if !policy.DeletionTimestamp.IsZero() {
return controllerruntime.Result{}, nil
}
// TODO(RainbowMango): wait for moving this logic to detector.
// Maybe there is another option that introduce status for policy apis.
present, err := helper.IsDependentOverridesPresent(c.Client, policy)
if err != nil {
return controllerruntime.Result{Requeue: true}, err
}
if !present {
klog.Infof("waiting for policy(%s) dependent overrides ready.", req.String())
return controllerruntime.Result{Requeue: true}, fmt.Errorf("waiting for policy(%s) dependent overrides ready", req.String())
}
return controllerruntime.Result{}, nil
}
// SetupWithManager creates a controller and register to controller manager.
func (c *Controller) SetupWithManager(mgr controllerruntime.Manager) error {
return controllerruntime.NewControllerManagedBy(mgr).For(&v1alpha1.PropagationPolicy{}).Complete(c)
}