forked from projectcalico/kube-controllers
/
namespace_converter.go
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/
namespace_converter.go
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// Copyright (c) 2017 Tigera, Inc. All rights reserved.
//
// 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
//
// 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 converter
import (
"fmt"
api "github.com/projectcalico/libcalico-go/lib/apis/v3"
"github.com/projectcalico/libcalico-go/lib/backend/k8s/conversion"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/cache"
)
type namespaceConverter struct {
}
// NewNamespaceConverter Constructor for namespaceConverter
func NewNamespaceConverter() Converter {
return &namespaceConverter{}
}
func (nc *namespaceConverter) Convert(k8sObj interface{}) (interface{}, error) {
var c conversion.Converter
namespace, ok := k8sObj.(*v1.Namespace)
if !ok {
tombstone, ok := k8sObj.(cache.DeletedFinalStateUnknown)
if !ok {
return nil, fmt.Errorf("couldn't get object from tombstone %+v", k8sObj)
}
namespace, ok = tombstone.Obj.(*v1.Namespace)
if !ok {
return nil, fmt.Errorf("tombstone contained object that is not a Namespace %+v", k8sObj)
}
}
kvp, err := c.NamespaceToProfile(namespace)
if err != nil {
return nil, err
}
profile := kvp.Value.(*api.Profile)
// Isolate the metadata fields that we care about. ResourceVersion, CreationTimeStamp, etc are
// not relevant so we ignore them. This prevents uncessary updates.
profile.ObjectMeta = metav1.ObjectMeta{Name: profile.Name}
return *profile, nil
}
// GetKey returns name of the Profile as its key. For Profiles
// backed by Kubernetes namespaces and managed by this controller, the name
// is of format `kns.name`.
func (nc *namespaceConverter) GetKey(obj interface{}) string {
profile := obj.(api.Profile)
return profile.Name
}
func (p *namespaceConverter) DeleteArgsFromKey(key string) (string, string) {
// Not namespaced, so just return the key, which is the profile name.
return "", key
}