controllers/webhooks/workloads/spaces/validator.go
package spaces
import (
"context"
"errors"
"fmt"
korifiv1alpha1 "code.cloudfoundry.org/korifi/controllers/api/v1alpha1"
"code.cloudfoundry.org/korifi/controllers/webhooks"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
ctrl "sigs.k8s.io/controller-runtime"
logf "sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/webhook"
"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
)
const (
CFSpaceEntityType = "cfspace"
)
var spaceLogger = logf.Log.WithName("cfspace-validate")
//+kubebuilder:webhook:path=/validate-korifi-cloudfoundry-org-v1alpha1-cfspace,mutating=false,failurePolicy=fail,sideEffects=NoneOnDryRun,groups=korifi.cloudfoundry.org,resources=cfspaces,verbs=create;update;delete,versions=v1alpha1,name=vcfspace.korifi.cloudfoundry.org,admissionReviewVersions={v1,v1beta1}
type Validator struct {
duplicateValidator webhooks.NameValidator
placementValidator webhooks.NamespaceValidator
}
var _ webhook.CustomValidator = &Validator{}
func NewValidator(duplicateSpaceValidator webhooks.NameValidator, placementValidator webhooks.NamespaceValidator) *Validator {
return &Validator{
duplicateValidator: duplicateSpaceValidator,
placementValidator: placementValidator,
}
}
func (v *Validator) SetupWebhookWithManager(mgr ctrl.Manager) error {
return ctrl.NewWebhookManagedBy(mgr).
For(&korifiv1alpha1.CFSpace{}).
WithValidator(v).
Complete()
}
func (v *Validator) ValidateCreate(ctx context.Context, obj runtime.Object) (admission.Warnings, error) {
space, ok := obj.(*korifiv1alpha1.CFSpace)
if !ok {
return nil, apierrors.NewBadRequest(fmt.Sprintf("expected a CFSpace but got a %T", obj))
}
if len(space.Name) > webhooks.MaxLabelLength {
return nil, errors.New("space name cannot be longer than 63 chars")
}
err := v.duplicateValidator.ValidateCreate(ctx, spaceLogger, space.Namespace, space)
if err != nil {
return nil, err
}
return nil, v.placementValidator.ValidateSpaceCreate(*space)
}
func (v *Validator) ValidateUpdate(ctx context.Context, oldObj, obj runtime.Object) (admission.Warnings, error) {
space, ok := obj.(*korifiv1alpha1.CFSpace)
if !ok {
return nil, apierrors.NewBadRequest(fmt.Sprintf("expected a CFSpace but got a %T", obj))
}
if !space.GetDeletionTimestamp().IsZero() {
return nil, nil
}
oldSpace, ok := oldObj.(*korifiv1alpha1.CFSpace)
if !ok {
return nil, apierrors.NewBadRequest(fmt.Sprintf("expected a CFSpace but got a %T", obj))
}
return nil, v.duplicateValidator.ValidateUpdate(ctx, spaceLogger, oldSpace.Namespace, oldSpace, space)
}
func (v *Validator) ValidateDelete(ctx context.Context, obj runtime.Object) (admission.Warnings, error) {
space, ok := obj.(*korifiv1alpha1.CFSpace)
if !ok {
return nil, apierrors.NewBadRequest(fmt.Sprintf("expected a CFSpace but got a %T", obj))
}
return nil, v.duplicateValidator.ValidateDelete(ctx, spaceLogger, space.Namespace, space)
}