70 lines
2 KiB
Go
70 lines
2 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package class
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import (
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networking "k8s.io/api/networking/v1beta1"
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"k8s.io/ingress-nginx/internal/k8s"
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)
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const (
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// IngressKey picks a specific "class" for the Ingress.
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// The controller only processes Ingresses with this annotation either
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// unset, or set to either the configured value or the empty string.
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IngressKey = "kubernetes.io/ingress.class"
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)
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var (
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// DefaultClass defines the default class used in the nginx ingress controller
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DefaultClass = "nginx"
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// IngressClass sets the runtime ingress class to use
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// An empty string means accept all ingresses without
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// annotation and the ones configured with class nginx
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IngressClass = "nginx"
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)
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// IsValid returns true if the given Ingress specify the ingress.class
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// annotation or IngressClassName resource for Kubernetes >= v1.18
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func IsValid(ing *networking.Ingress) bool {
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// 1. with annotation
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ingress, ok := ing.GetAnnotations()[IngressKey]
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if ok {
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// empty annotation and same annotation on ingress
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if ingress == "" && IngressClass == DefaultClass {
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return true
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}
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return ingress == IngressClass
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}
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// 2. k8s < v1.18. Check default annotation
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if !k8s.IsIngressV1Beta1Ready {
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return IngressClass == DefaultClass
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}
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// 3. without annotation and IngressClass. Check default annotation
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if k8s.IngressClass == nil {
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return IngressClass == DefaultClass
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}
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// 4. with IngressClass
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if ing.Spec.IngressClassName != nil {
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return k8s.IngressClass.Name == *ing.Spec.IngressClassName
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}
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return false
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}
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