/
webhook.go
60 lines (50 loc) · 1.83 KB
/
webhook.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package validator
import (
extensionswebhook "github.com/gardener/gardener/extensions/pkg/webhook"
"github.com/gardener/gardener/pkg/apis/core"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/utils/pointer"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"github.com/gardener/gardener-extension-networking-calico/pkg/calico"
)
const (
// Name is a name for a validation webhook.
Name = "validator"
)
var logger = log.Log.WithName("calico-validator-webhook")
// New creates a new webhook that validates Shoot resources.
func New(mgr manager.Manager) (*extensionswebhook.Webhook, error) {
logger.Info("Setting up webhook", "name", Name)
return extensionswebhook.New(mgr, extensionswebhook.Args{
Provider: calico.Name,
Name: Name,
Path: "/webhooks/validate",
Predicates: []predicate.Predicate{CalicoPredicate()},
Validators: map[extensionswebhook.Validator][]extensionswebhook.Type{
NewShootValidator(mgr): {{Obj: &core.Shoot{}}},
},
Target: extensionswebhook.TargetSeed,
ObjectSelector: &metav1.LabelSelector{
MatchLabels: map[string]string{"networking.extensions.gardener.cloud/calico": "true"},
},
})
}
// CalicoPredicate returns a predicate that checks the calico networking type in the shoot spec.
func CalicoPredicate() predicate.Funcs {
return predicate.NewPredicateFuncs(func(obj client.Object) bool {
if obj == nil {
return false
}
shoot, ok := obj.(*core.Shoot)
if !ok {
return false
}
return shoot.Spec.Networking != nil && pointer.StringEqual(shoot.Spec.Networking.Type, pointer.String(calico.ReleaseName))
})
}