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policy_namespace_validator.go
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/
policy_namespace_validator.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package webhooks
import (
"context"
"fmt"
)
import (
"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
)
import (
core_model "github.com/apache/dubbo-kubernetes/pkg/core/resources/model"
"github.com/apache/dubbo-kubernetes/pkg/core/resources/registry"
)
type PolicyNamespaceValidator struct {
Decoder *admission.Decoder
SystemNamespace string
}
func (p *PolicyNamespaceValidator) InjectDecoder(decoder *admission.Decoder) {
p.Decoder = decoder
}
func (p *PolicyNamespaceValidator) Handle(ctx context.Context, request admission.Request) admission.Response {
if request.Namespace != p.SystemNamespace {
return admission.Denied(fmt.Sprintf("policy can only be created in the system namespace:%s", p.SystemNamespace))
}
return admission.Allowed("")
}
func (p *PolicyNamespaceValidator) Supports(request admission.Request) bool {
desc, err := registry.Global().DescriptorFor(core_model.ResourceType(request.Kind.Kind))
if err != nil {
return false
}
return desc.IsPluginOriginated
}