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generated from cruise-automation/oss-template
/
service.go
53 lines (47 loc) · 1.67 KB
/
service.go
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// Copyright 2019 Cruise LLC
//
// Licensed 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
// https://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 resource
import (
"context"
admissionv1beta1 "k8s.io/api/admission/v1beta1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// ServiceResource contains the information needed for processing by a Policy
type ServiceResource struct {
Service corev1.Service
ResourceName string
ResourceKind string
}
// GetServiceResource extracts and ServiceResource from an AdmissionRequest
func GetServiceResource(ctx context.Context, ar *admissionv1beta1.AdmissionRequest) *ServiceResource {
c := GetResourceCache(ctx)
return c.getOrSet(cacheKeyService, func() interface{} {
return decodeServiceResource(ar)
}).(*ServiceResource)
}
func decodeServiceResource(ar *admissionv1beta1.AdmissionRequest) *ServiceResource {
switch ar.Resource {
case metav1.GroupVersionResource{Group: "core", Version: "v1", Resource: "services"}:
svc := corev1.Service{}
if err := decodeObject(ar.Object.Raw, &svc); err != nil {
return nil
}
return &ServiceResource{
Service: svc,
ResourceName: GetResourceName(svc.ObjectMeta),
ResourceKind: "Service",
}
default:
return nil
}
}