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cloudstackmachineconfig_webhook.go
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cloudstackmachineconfig_webhook.go
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package v1alpha1
import (
"fmt"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/validation/field"
ctrl "sigs.k8s.io/controller-runtime"
logf "sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/webhook"
)
// log is for logging in this package.
var cloudstackmachineconfiglog = logf.Log.WithName("cloudstackmachineconfig-resource")
func (r *CloudStackMachineConfig) SetupWebhookWithManager(mgr ctrl.Manager) error {
return ctrl.NewWebhookManagedBy(mgr).
For(r).
Complete()
}
// EDIT THIS FILE! THIS IS SCAFFOLDING FOR YOU TO OWN!
// TODO(user): change verbs to "verbs=create;update;delete" if you want to enable deletion validation.
//+kubebuilder:webhook:path=/validate-anywhere-eks-amazonaws-com-v1alpha1-cloudstackmachineconfig,mutating=false,failurePolicy=fail,sideEffects=None,groups=anywhere.eks.amazonaws.com,resources=cloudstackmachineconfigs,verbs=create;update,versions=v1alpha1,name=validation.cloudstackmachineconfig.anywhere.amazonaws.com,admissionReviewVersions={v1,v1beta1}
var _ webhook.Validator = &CloudStackMachineConfig{}
// ValidateCreate implements webhook.Validator so a webhook will be registered for the type.
func (r *CloudStackMachineConfig) ValidateCreate() error {
cloudstackmachineconfiglog.Info("validate create", "name", r.Name)
if err, fieldName, fieldValue := r.Spec.DiskOffering.Validate(); err != nil {
return apierrors.NewBadRequest(fmt.Sprintf("disk offering %s:%v, preventing CloudStackMachineConfig resource creation: %v", fieldName, fieldValue, err))
}
if err, fieldName, fieldValue := r.Spec.Symlinks.Validate(); err != nil {
return apierrors.NewBadRequest(fmt.Sprintf("symlinks %s:%v, preventing CloudStackMachineConfig resource creation: %v", fieldName, fieldValue, err))
}
// This is only needed for the webhook, which is why it is separate from the Validate method
if err := r.ValidateUsers(); err != nil {
return err
}
return r.Validate()
}
// ValidateUpdate implements webhook.Validator so a webhook will be registered for the type.
func (r *CloudStackMachineConfig) ValidateUpdate(old runtime.Object) error {
cloudstackmachineconfiglog.Info("validate update", "name", r.Name)
oldCloudStackMachineConfig, ok := old.(*CloudStackMachineConfig)
if !ok {
return apierrors.NewBadRequest(fmt.Sprintf("expected a CloudStackMachineConfig but got a %T", old))
}
if oldCloudStackMachineConfig.IsReconcilePaused() {
cloudstackmachineconfiglog.Info("Reconciliation is paused")
return nil
}
if oldCloudStackMachineConfig.IsManagement() {
cloudstackmachineconfiglog.Info("Machine config is associated with workload cluster", "name", oldCloudStackMachineConfig.Name)
return nil
}
// This is only needed for the webhook, which is why it is separate from the Validate method
if err := r.ValidateUsers(); err != nil {
return apierrors.NewInvalid(GroupVersion.WithKind(CloudStackMachineConfigKind).GroupKind(),
r.Name,
field.ErrorList{
field.Invalid(field.NewPath("spec", "users"), r.Spec.Users, err.Error()),
})
}
var allErrs field.ErrorList
allErrs = append(allErrs, validateImmutableFieldsCloudStackMachineConfig(r, oldCloudStackMachineConfig)...)
if err, fieldName, fieldValue := r.Spec.DiskOffering.Validate(); err != nil {
allErrs = append(
allErrs,
field.Invalid(field.NewPath("spec", "diskOffering", fieldName), fieldValue, err.Error()),
)
}
if err, fieldName, fieldValue := r.Spec.Symlinks.Validate(); err != nil {
allErrs = append(
allErrs,
field.Invalid(field.NewPath("spec", "symlinks", fieldName), fieldValue, err.Error()),
)
}
if err := r.ValidateUsers(); err != nil {
allErrs = append(
allErrs,
field.Invalid(field.NewPath("spec", "users"), r.Spec.Users, err.Error()))
}
if err := r.Validate(); err != nil {
allErrs = append(allErrs, field.Invalid(field.NewPath("spec"), r.Spec, err.Error()))
}
if len(allErrs) > 0 {
return apierrors.NewInvalid(GroupVersion.WithKind(CloudStackMachineConfigKind).GroupKind(), r.Name, allErrs)
}
return nil
}
func validateImmutableFieldsCloudStackMachineConfig(new, old *CloudStackMachineConfig) field.ErrorList {
var allErrs field.ErrorList
if old.Spec.Affinity != new.Spec.Affinity {
allErrs = append(
allErrs,
field.Invalid(field.NewPath("spec", "affinity"), new.Spec.Affinity, "field is immutable"),
)
}
affinityGroupIdsMutated := false
if len(old.Spec.AffinityGroupIds) != len(new.Spec.AffinityGroupIds) {
affinityGroupIdsMutated = true
} else {
for index, id := range old.Spec.AffinityGroupIds {
if id != new.Spec.AffinityGroupIds[index] {
affinityGroupIdsMutated = true
break
}
}
}
if affinityGroupIdsMutated {
allErrs = append(
allErrs,
field.Invalid(field.NewPath("spec", "affinityGroupIdsMutated"), new.Spec.AffinityGroupIds, "field is immutable"),
)
}
return allErrs
}
// ValidateDelete implements webhook.Validator so a webhook will be registered for the type.
func (r *CloudStackMachineConfig) ValidateDelete() error {
cloudstackmachineconfiglog.Info("validate delete", "name", r.Name)
return nil
}