Ingress: Move ingress objects back to the extensions api

This updates the ingress objects to move them back to the
extensions API.  While 1.16 moves them under the networking
api, they're still rendered and deployed as extensions/ objects.
This move prevents issues from arising where older versions of
kubernetes might still be deployed during an upgrade, as the
move to the networking API is nonfunctional at this time

Change-Id: I814bbc833b5b9f79f34aefc60b9c1f9890bca826
Signed-off-by: Steve Wilkerson <sw5822@att.com>

helm-toolkit/templates/manifests/_ingress.tpl

@@ -64,7 +64,7 @@ examples:
       {{- include "helm-toolkit.manifests.ingress" ( dict "envAll" . "backendServiceType" "key-manager" "backendPort" "b-api" "endpoint" "public" ) -}}
     return: |
       ---
-      apiVersion: networking.k8s.io/v1beta1
+      apiVersion: extensions/v1beta1
       kind: Ingress
       metadata:
         name: barbican
@@ -96,7 +96,7 @@ examples:
                     serviceName: barbican-api
                     servicePort: b-api
       ---
-      apiVersion: networking.k8s.io/v1beta1
+      apiVersion: extensions/v1beta1
       kind: Ingress
       metadata:
         name: barbican-namespace-fqdn
@@ -118,7 +118,7 @@ examples:
                     serviceName: barbican-api
                     servicePort: b-api
       ---
-      apiVersion: networking.k8s.io/v1beta1
+      apiVersion: extensions/v1beta1
       kind: Ingress
       metadata:
         name: barbican-cluster-fqdn
@@ -184,7 +184,7 @@ examples:
       {{- include "helm-toolkit.manifests.ingress" ( dict "envAll" . "backendServiceType" "key-manager" "backendPort" "b-api" "endpoint" "public" ) -}}
     return: |
       ---
-      apiVersion: networking.k8s.io/v1beta1
+      apiVersion: extensions/v1beta1
       kind: Ingress
       metadata:
         name: barbican
@@ -247,7 +247,7 @@ examples:
 {{- $hostName := tuple $backendServiceType $endpoint $envAll | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" }}
 {{- $hostNameFull := tuple $backendServiceType $endpoint $envAll | include "helm-toolkit.endpoints.hostname_fqdn_endpoint_lookup" }}
 ---
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: extensions/v1beta1
 kind: Ingress
 metadata:
   name: {{ $ingressName }}
@@ -282,7 +282,7 @@ spec:
 {{- range $key2, $ingressController := tuple "namespace" "cluster" }}
 {{- $hostNameFullRules := dict "vHost" $hostNameFull "backendName" $backendName "backendPort" $backendPort }}
 ---
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: extensions/v1beta1
 kind: Ingress
 metadata:
   name: {{ printf "%s-%s-%s" $ingressName $ingressController "fqdn" }}

ingress/templates/deployment-ingress.yaml

@@ -60,7 +60,6 @@ rules:
       - watch
   - apiGroups:
       - "extensions"
-      - "networking.k8s.io"
     resources:
       - ingresses
     verbs:

ingress/templates/ingress.yaml

@@ -21,7 +21,7 @@ limitations under the License.
 {{- $_ := set .Values.network.ingress.annotations "kubernetes.io/ingress.class" .Values.deployment.cluster.class -}}
 {{- end -}}
 ---
-apiVersion: networking.k8s.io/v1beta1
+apiVersion: extensions/v1beta1
 kind: Ingress
 metadata:
   name: {{ .Release.Namespace }}-{{ .Release.Name }}