sigs.k8s.io/cluster-api-provider-aws@v1.5.5/api/v1beta1/awsclustercontrolleridentity_webhook.go (about)

     1  /*
     2  Copyright 2021 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  	http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package v1beta1
    18  
    19  import (
    20  	"fmt"
    21  
    22  	"github.com/google/go-cmp/cmp"
    23  	"github.com/pkg/errors"
    24  	apierrors "k8s.io/apimachinery/pkg/api/errors"
    25  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    26  	"k8s.io/apimachinery/pkg/runtime"
    27  	"k8s.io/apimachinery/pkg/util/validation/field"
    28  	ctrl "sigs.k8s.io/controller-runtime"
    29  	logf "sigs.k8s.io/controller-runtime/pkg/log"
    30  	"sigs.k8s.io/controller-runtime/pkg/webhook"
    31  )
    32  
    33  // log is for logging in this package.
    34  var _ = logf.Log.WithName("awsclustercontrolleridentity-resource")
    35  
    36  func (r *AWSClusterControllerIdentity) SetupWebhookWithManager(mgr ctrl.Manager) error {
    37  	return ctrl.NewWebhookManagedBy(mgr).
    38  		For(r).
    39  		Complete()
    40  }
    41  
    42  // +kubebuilder:webhook:verbs=create;update,path=/validate-infrastructure-cluster-x-k8s-io-v1beta1-awsclustercontrolleridentity,mutating=false,failurePolicy=fail,matchPolicy=Equivalent,groups=infrastructure.cluster.x-k8s.io,resources=awsclustercontrolleridentities,versions=v1beta1,name=validation.awsclustercontrolleridentity.infrastructure.cluster.x-k8s.io,sideEffects=None,admissionReviewVersions=v1beta1
    43  // +kubebuilder:webhook:verbs=create;update,path=/mutate-infrastructure-cluster-x-k8s-io-v1beta1-awsclustercontrolleridentity,mutating=true,failurePolicy=fail,matchPolicy=Equivalent,groups=infrastructure.cluster.x-k8s.io,resources=awsclustercontrolleridentities,versions=v1beta1,name=default.awsclustercontrolleridentity.infrastructure.cluster.x-k8s.io,sideEffects=None,admissionReviewVersions=v1beta1
    44  
    45  var (
    46  	_ webhook.Validator = &AWSClusterControllerIdentity{}
    47  	_ webhook.Defaulter = &AWSClusterControllerIdentity{}
    48  )
    49  
    50  // ValidateCreate will do any extra validation when creating an AWSClusterControllerIdentity.
    51  func (r *AWSClusterControllerIdentity) ValidateCreate() error {
    52  	// Ensures AWSClusterControllerIdentity being singleton by only allowing "default" as name
    53  	if r.Name != AWSClusterControllerIdentityName {
    54  		return field.Invalid(field.NewPath("name"),
    55  			r.Name, "AWSClusterControllerIdentity is a singleton and only acceptable name is default")
    56  	}
    57  
    58  	// Validate selector parses as Selector if AllowedNameSpaces is populated
    59  	if r.Spec.AllowedNamespaces != nil {
    60  		_, err := metav1.LabelSelectorAsSelector(&r.Spec.AllowedNamespaces.Selector)
    61  		if err != nil {
    62  			return field.Invalid(field.NewPath("spec", "allowedNamespaces", "selector"), r.Spec.AllowedNamespaces.Selector, err.Error())
    63  		}
    64  	}
    65  
    66  	return nil
    67  }
    68  
    69  // ValidateDelete allows you to add any extra validation when deleting an AWSClusterControllerIdentity.
    70  func (r *AWSClusterControllerIdentity) ValidateDelete() error {
    71  	return nil
    72  }
    73  
    74  // ValidateUpdate will do any extra validation when updating an AWSClusterControllerIdentity.
    75  func (r *AWSClusterControllerIdentity) ValidateUpdate(old runtime.Object) error {
    76  	oldP, ok := old.(*AWSClusterControllerIdentity)
    77  	if !ok {
    78  		return apierrors.NewBadRequest(fmt.Sprintf("expected an AWSClusterControllerIdentity but got a %T", old))
    79  	}
    80  
    81  	if !cmp.Equal(r.Spec, oldP.Spec) {
    82  		return errors.New("AWSClusterControllerIdentity is immutable")
    83  	}
    84  
    85  	if r.Name != oldP.Name {
    86  		return field.Invalid(field.NewPath("name"),
    87  			r.Name, "AWSClusterControllerIdentity is a singleton and only acceptable name is default")
    88  	}
    89  
    90  	// Validate selector parses as Selector if AllowedNameSpaces is not nil
    91  	if r.Spec.AllowedNamespaces != nil {
    92  		_, err := metav1.LabelSelectorAsSelector(&r.Spec.AllowedNamespaces.Selector)
    93  		if err != nil {
    94  			return field.Invalid(field.NewPath("spec", "allowedNamespaces", "selectors"), r.Spec.AllowedNamespaces.Selector, err.Error())
    95  		}
    96  	}
    97  
    98  	return nil
    99  }
   100  
   101  // Default will set default values for the AWSClusterControllerIdentity.
   102  func (r *AWSClusterControllerIdentity) Default() {
   103  	SetDefaults_Labels(&r.ObjectMeta)
   104  }