Update label from `class` to `class_name`

Signed-off-by: Mike Eves <michael.eves@autotrader.co.uk>

discovery/kubernetes/ingress.go

@@ -147,7 +147,7 @@ const (
 	ingressSchemeLabel             = metaLabelPrefix + "ingress_scheme"
 	ingressHostLabel               = metaLabelPrefix + "ingress_host"
 	ingressPathLabel               = metaLabelPrefix + "ingress_path"
-	ingressClassLabel              = metaLabelPrefix + "ingress_class"
+	ingressClassNameLabel          = metaLabelPrefix + "ingress_class_name"
 )
 
 func ingressLabels(ingress *v1beta1.Ingress) model.LabelSet {
@@ -156,9 +156,9 @@ func ingressLabels(ingress *v1beta1.Ingress) model.LabelSet {
 	ls[ingressNameLabel] = lv(ingress.Name)
 	ls[namespaceLabel] = lv(ingress.Namespace)
 	if ingress.Spec.IngressClassName == nil {
-		ls[ingressClassLabel] = lv("")
+		ls[ingressClassNameLabel] = lv("")
 	} else {
-		ls[ingressClassLabel] = lv(*ingress.Spec.IngressClassName)
+		ls[ingressClassNameLabel] = lv(*ingress.Spec.IngressClassName)
 	}
 
 	for k, v := range ingress.Labels {

discovery/kubernetes/ingress_test.go

@@ -33,7 +33,7 @@ const (
 	TLSMixed
 )
 
-func makeIngress(tls TLSMode, excludeClass bool) *v1beta1.Ingress {
+func makeIngress(tls TLSMode, excludeClassName bool) *v1beta1.Ingress {
 	ret := &v1beta1.Ingress{
 		ObjectMeta: metav1.ObjectMeta{
 			Name:        "testingress",
@@ -82,7 +82,7 @@ func makeIngress(tls TLSMode, excludeClass bool) *v1beta1.Ingress {
 		ret.Spec.TLS = []v1beta1.IngressTLS{{Hosts: []string{"example.com"}}}
 	}
 
-	if excludeClass {
+	if excludeClassName {
 		ret.Spec.IngressClassName = nil
 	}
 
@@ -93,7 +93,7 @@ func classString(v string) *string {
 	return &v
 }
 
-func expectedTargetGroups(ns string, tls TLSMode, excludeClass bool) map[string]*targetgroup.Group {
+func expectedTargetGroups(ns string, tls TLSMode, excludeClassName bool) map[string]*targetgroup.Group {
 	scheme1 := "http"
 	scheme2 := "http"
 
@@ -107,7 +107,7 @@ func expectedTargetGroups(ns string, tls TLSMode, excludeClass bool) map[string]
 		scheme1 = "https"
 	}
 
-	if excludeClass {
+	if excludeClassName {
 		ingressClassName = ""
 	}
 
@@ -141,7 +141,7 @@ func expectedTargetGroups(ns string, tls TLSMode, excludeClass bool) map[string]
 				"__meta_kubernetes_ingress_labelpresent_test_label":           "true",
 				"__meta_kubernetes_ingress_annotation_test_annotation":        "testannotationvalue",
 				"__meta_kubernetes_ingress_annotationpresent_test_annotation": "true",
-				"__meta_kubernetes_ingress_class":                             lv(ingressClassName),
+				"__meta_kubernetes_ingress_class_name":                        lv(ingressClassName),
 			},
 			Source: key,
 		},

docs/configuration/configuration.md

@@ -1342,7 +1342,7 @@ Available meta labels:
 * `__meta_kubernetes_ingress_labelpresent_<labelname>`: `true` for each label from the ingress object.
 * `__meta_kubernetes_ingress_annotation_<annotationname>`: Each annotation from the ingress object.
 * `__meta_kubernetes_ingress_annotationpresent_<annotationname>`: `true` for each annotation from the ingress object.
-* `__meta_kubernetes_ingress_class`: Class from ingress spec, if present.
+* `__meta_kubernetes_ingress_class_name`: Class name from ingress spec, if present.
 * `__meta_kubernetes_ingress_scheme`: Protocol scheme of ingress, `https` if TLS
   config is set. Defaults to `http`.
 * `__meta_kubernetes_ingress_path`: Path from ingress spec. Defaults to `/`.