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objectmeta.go
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objectmeta.go
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// Copyright Project Contour Authors
// 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 k8s
import (
"strings"
"github.com/projectcontour/contour/internal/annotation"
networking_v1 "k8s.io/api/networking/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
)
// NamespacedNameOf returns the NamespacedName of any given Kubernetes object.
func NamespacedNameOf(obj metav1.Object) types.NamespacedName {
name := types.NamespacedName{
Name: obj.GetName(),
Namespace: obj.GetNamespace(),
}
if name.Namespace == "" {
name.Namespace = metav1.NamespaceDefault
}
return name
}
// TLSCertAnnotationNamespace can be used with NamespacedNameFrom to set the secret namespace
// from the "projectcontour.io/tls-cert-namespace" annotation
func TLSCertAnnotationNamespace(ing *networking_v1.Ingress) func(name *types.NamespacedName) {
return func(name *types.NamespacedName) {
if name.Namespace == "" {
name.Namespace = annotation.TLSCertNamespace(ing)
}
}
}
// DefaultNamespace can be used with NamespacedNameFrom to set the
// default namespace for a resource name that may not be qualified by
// a namespace.
func DefaultNamespace(ns string) func(name *types.NamespacedName) {
return func(name *types.NamespacedName) {
if name.Namespace == "" {
name.Namespace = ns
}
}
}
// NamespacedNameFrom parses a resource name string into a fully qualified NamespacedName.
func NamespacedNameFrom(nameStr string, opts ...func(*types.NamespacedName)) types.NamespacedName {
var name types.NamespacedName
v := strings.SplitN(nameStr, "/", 2)
switch len(v) {
case 1:
// No '/' separator.
name = types.NamespacedName{
Name: v[0],
Namespace: "",
}
default:
name = types.NamespacedName{
Name: v[1],
Namespace: v[0],
}
}
for _, o := range opts {
o(&name)
}
if name.Namespace == "" {
name.Namespace = metav1.NamespaceDefault
}
return name
}