[COMMON] Add support for Gateway-API in Ingress template

Add options to set the Ingress provider and enhanced
settings to provide different resource outputs for
Ingress resurces

Issue-ID: OOM-3184

Change-Id: I3a6ebf17191a558941d6e18fbfe676da0c78e487
Signed-off-by: Andreas Geissler <andreas-geissler@telekom.de>

5 files changed, 519 insertions, 88 deletions

diff --git a/kubernetes/common/common/Chart.yaml b/kubernetes/common/common/Chart.yaml
index f66a0c6bb9..e134fe8048 100644
--- a/kubernetes/common/common/Chart.yaml
+++ b/kubernetes/common/common/Chart.yaml
@@ -16,4 +16,4 @@
 apiVersion: v2
 description: Common templates for inclusion in other charts
 name: common
-version: 13.0.0
+version: 13.0.1
diff --git a/kubernetes/common/common/templates/_ingress.tpl b/kubernetes/common/common/templates/_ingress.tpl
index db276d546c..968cb65a78 100644
--- a/kubernetes/common/common/templates/_ingress.tpl
+++ b/kubernetes/common/common/templates/_ingress.tpl
@@ -28,6 +28,171 @@ true
 {{-   end -}}
 {{- end -}}
 
+{{/*
+  Helper function to check, if Ingress is enabled
+*/}}
+{{- define "common.ingress._enabled" -}}
+{{-   $dot := default . .dot -}}
+{{-   if $dot.Values.ingress -}}
+{{-     if $dot.Values.global.ingress -}}
+{{-       if (default false $dot.Values.global.ingress.enabled) -}}
+{{-         if (default false $dot.Values.global.ingress.enable_all) -}}
+true
+{{-         else -}}
+{{-           if $dot.Values.ingress.enabled -}}
+true
+{{-           end -}}
+{{-         end -}}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{- end -}}
+
+{{/*
+  Helper function to check, if TLS redirect is enabled
+*/}}
+{{- define "common.ingress._tlsRedirect" -}}
+{{-   $dot := default . .dot -}}
+{{-   if $dot.Values.global.ingress.config }}
+{{-     if $dot.Values.global.ingress.config.ssl }}
+{{-       if eq $dot.Values.global.ingress.config.ssl "redirect" }}
+true
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the Ingress Provider (default is "ingress")
+*/}}
+{{- define "common.ingress._provider" -}}
+{{-   $dot := default . .dot -}}
+{{-   $provider := "ingress" -}}
+{{-   if $dot.Values.global.ingress -}}
+{{-     if $dot.Values.global.ingress.provider -}}
+{{-       if ne $dot.Values.global.ingress.provider "" -}}
+{{          $provider = $dot.Values.global.ingress.provider }}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{-   $provider -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the Ingress Class (default is "nginx")
+*/}}
+{{- define "common.ingress._class" -}}
+{{-   $dot := default . .dot -}}
+{{-   $class := "nginx" -}}
+{{-   if $dot.Values.global.ingress -}}
+{{-     if $dot.Values.global.ingress.ingressClass -}}
+{{-       if ne $dot.Values.global.ingress.ingressClass "" -}}
+{{          $class = $dot.Values.global.ingress.ingressClass }}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{-   $class -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the Ingress Selector (default is "ingress")
+*/}}
+{{- define "common.ingress._selector" -}}
+{{-   $dot := default . .dot -}}
+{{-   $selector := "ingress" -}}
+{{-   if $dot.Values.global.ingress -}}
+{{-     if $dot.Values.global.ingress.ingressSelector -}}
+{{-       if ne $dot.Values.global.ingress.ingressSelector "" -}}
+{{          $selector = $dot.Values.global.ingress.ingressSelector }}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{-   $selector -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the common Gateway, if exists
+*/}}
+{{- define "common.ingress._commonGateway" -}}
+{{-   $dot := default . .dot -}}
+{{-   $gateway := "-" -}}
+{{-   if $dot.Values.global.ingress -}}
+{{-     if $dot.Values.global.ingress.commonGateway -}}
+{{-       if $dot.Values.global.ingress.commonGateway.name -}}
+{{          $gateway = $dot.Values.global.ingress.commonGateway.name }}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{-   $gateway -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the common Gateway HTTP Listener name, if exists
+*/}}
+{{- define "common.ingress._gatewayHTTPListener" -}}
+{{-   $dot := default . .dot -}}
+{{-   $listener := "http-80" -}}
+{{-   if $dot.Values.global.ingress -}}
+{{-     if $dot.Values.global.ingress.commonGateway -}}
+{{-       if $dot.Values.global.ingress.commonGateway.name -}}
+{{          $listener = $dot.Values.global.ingress.commonGateway.httpListener }}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{-   $listener -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the common Gateway HTTPS Listener name, if exists
+*/}}
+{{- define "common.ingress._gatewayHTTPSListener" -}}
+{{-   $dot := default . .dot -}}
+{{-   $listener := "https-443" -}}
+{{-   if $dot.Values.global.ingress -}}
+{{-     if $dot.Values.global.ingress.commonGateway -}}
+{{-       if $dot.Values.global.ingress.commonGateway.name -}}
+{{          $listener = $dot.Values.global.ingress.commonGateway.httpsListener }}
+{{-       end -}}
+{{-     end -}}
+{{-   end -}}
+{{-   $listener -}}
+{{- end -}}
+
+{{/*
+  Helper function to check the existance of an override value
+*/}}
+{{- define "common.ingress._overrideIfDefined" -}}
+  {{- $currValue := .currVal }}
+  {{- $parent := .parent }}
+  {{- $var := .var }}
+  {{- if $parent -}}
+    {{- if hasKey $parent $var }}
+      {{- default "" (index $parent $var) }}
+    {{- else -}}
+      {{- default "" $currValue -}}
+    {{- end -}}
+  {{- else -}}
+    {{- default "" $currValue }}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+  Helper function to get the protocol of the service
+*/}}
+{{- define "common.ingress._protocol" -}}
+{{-   $dot := default . .dot -}}
+{{-   $protocol := "http" -}}
+{{-   if $dot.tcpRoutes }}
+{{-     $protocol = "tcp" -}}
+{{-   end -}}
+{{-   if $dot.udpRoutes }}
+{{-     $protocol = "tcp" -}}
+{{-   end -}}
+{{-   if $dot.protocol }}
+{{-     $protocol = (lower $dot.protocol) -}}
+{{-   end -}}
+{{-   $protocol -}}
+{{- end -}}
 
 {{/*
   Create the hostname as concatination <baseaddr>.<baseurl>
@@ -121,6 +286,21 @@ true
 {{- end -}}
 
 {{/*
+  Create Port entry in the Gateway resource
+*/}}
+{{- define "istio.config.gatewayPort" -}}
+{{-   $dot := default . .dot -}}
+{{-   $service := (required "'service' param, set to the specific service, is required." .service) -}}
+{{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) -}}
+{{-   $protocol := (required "'protocol' param, set to the specific port, is required." .protocol) -}}
+  - port:
+      {{- include "istio.config.port" (dict "dot" $service "baseaddr" $baseaddr "protocol" $protocol) }}
+    hosts:
+    - {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
+    {{- include "istio.config.tls" (dict "dot" $dot "service" $service "baseaddr" $baseaddr) }}
+{{- end -}}
+
+{{/*
   Helper function to add the route to the service
 */}}
 {{- define "ingress.config.port" -}}
@@ -197,16 +377,17 @@ true
   Helper function to add ssl annotations
 */}}
 {{- define "ingress.config.annotations.ssl" -}}
+{{- $class := include "common.ingress._class" (dict "dot" .) }}
 {{- if .Values.ingress.config -}}
 {{- if .Values.ingress.config.ssl -}}
 {{- if eq .Values.ingress.config.ssl "redirect" -}}
-kubernetes.io/ingress.class: nginx
-nginx.ingress.kubernetes.io/ssl-passthrough: "true"
-nginx.ingress.kubernetes.io/ssl-redirect: "true"
+kubernetes.io/ingress.class: {{ $class }}
+{{ $class }}.ingress.kubernetes.io/ssl-passthrough: "true"
+{{ $class }}.ingress.kubernetes.io/ssl-redirect: "true"
 {{-  else if eq .Values.ingress.config.ssl "native" -}}
-nginx.ingress.kubernetes.io/ssl-redirect: "true"
+{{ $class }}.ingress.kubernetes.io/ssl-redirect: "true"
 {{-  else if eq .Values.ingress.config.ssl "none" -}}
-nginx.ingress.kubernetes.io/ssl-redirect: "false"
+{{ $class }}.ingress.kubernetes.io/ssl-redirect: "false"
 {{- end -}}
 {{- end -}}
 {{- end -}}
@@ -226,65 +407,16 @@ nginx.ingress.kubernetes.io/ssl-redirect: "false"
 {{- end -}}
 
 {{/*
-  Helper function to check the existance of an override value
-*/}}
-{{- define "common.ingress._overrideIfDefined" -}}
-  {{- $currValue := .currVal }}
-  {{- $parent := .parent }}
-  {{- $var := .var }}
-  {{- if $parent -}}
-    {{- if hasKey $parent $var }}
-      {{- default "" (index $parent $var) }}
-    {{- else -}}
-      {{- default "" $currValue -}}
-    {{- end -}}
-  {{- else -}}
-    {{- default "" $currValue }}
-  {{- end -}}
-{{- end -}}
-
-{{/*
-  Helper function to check, if Ingress is enabled
-*/}}
-{{- define "common.ingress._enabled" -}}
-{{-   $dot := default . .dot -}}
-{{-   if $dot.Values.ingress -}}
-{{-     if $dot.Values.global.ingress -}}
-{{-       if (default false $dot.Values.global.ingress.enabled) -}}
-{{-         if (default false $dot.Values.global.ingress.enable_all) -}}
-true
-{{-         else -}}
-{{-           if $dot.Values.ingress.enabled -}}
-true
-{{-           end -}}
-{{-         end -}}
-{{-       end -}}
-{{-     end -}}
-{{-   end -}}
-{{- end -}}
-
-{{/*
-  Create Port entry in the Gateway resource
-*/}}
-{{- define "istio.config.gatewayPort" -}}
-{{-   $dot := default . .dot -}}
-{{-   $service := (required "'service' param, set to the specific service, is required." .service) -}}
-{{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) -}}
-{{-   $protocol := (required "'protocol' param, set to the specific port, is required." .protocol) -}}
-  - port:
-      {{- include "istio.config.port" (dict "dot" $service "baseaddr" $baseaddr "protocol" $protocol) }}
-    hosts:
-    - {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
-    {{- include "istio.config.tls" (dict "dot" $dot "service" $service "baseaddr" $baseaddr) }}
-{{- end -}}
-
-{{/*
   Create Istio Ingress resources per defined service
 */}}
 {{- define "common.istioIngress" -}}
 {{- $dot := default . .dot -}}
+{{- $selector := include "common.ingress._selector" (dict "dot" $dot) }}
+{{- $gateway := include "common.ingress._commonGateway" (dict "dot" $dot) }}
 {{  range $dot.Values.ingress.service }}
+{{    if or ( eq (include "common.ingress._protocol" (dict "dot" .)) "http" ) ( eq (include "common.ingress._protocol" (dict "dot" .)) "tcp" )}}
 {{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) }}
+{{-     if eq $gateway "-" }}
 ---
 apiVersion: networking.istio.io/v1beta1
 kind: Gateway
@@ -292,19 +424,20 @@ metadata:
   name: {{ $baseaddr }}-gateway
 spec:
   selector:
-    istio: ingress # use Istio default gateway implementation
+    istio: {{ $selector }}
   servers:
-{{-   if .tcpRoutes }}
-{{      range .tcpRoutes }}
+{{-       if .tcpRoutes }}
+{{          range .tcpRoutes }}
   {{ include "istio.config.gatewayPort" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "tcp") | trim }}
-{{      end -}}
-{{-   else }}
-  {{-   if .protocol }}
+{{          end -}}
+{{-       else }}
+  {{-       if .protocol }}
   {{ include "istio.config.gatewayPort" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" .protocol) | trim }}
-  {{-   else }}
+  {{-       else }}
   {{ include "istio.config.gatewayPort" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "http") | trim }}
-  {{    end }}
-{{    end }}
+  {{        end }}
+{{        end }}
+{{      end }}
 ---
 apiVersion: networking.istio.io/v1beta1
 kind: VirtualService
@@ -314,7 +447,11 @@ spec:
   hosts:
     - {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
   gateways:
+{{-   if eq $gateway "-" }}
   - {{ $baseaddr }}-gateway
+{{-   else }}
+  - {{ $gateway }}
+{{-   end }}
 {{-   if .tcpRoutes }}
   tcp:
 {{      range .tcpRoutes }}
@@ -327,9 +464,253 @@ spec:
   {{-   else }}
   http:
   {{ include "istio.config.route" (dict "dot" . "protocol" "http") | trim }}
-  {{    end }}
-{{    end }}
+  {{-   end }}
+{{-   end }}
+{{- end }}
+{{- end }}
+{{- end -}}
+
+{{/*
+  GW-API Helper function to add the tls route
+*/}}
+{{- define "gwapi.config.tls_simple" -}}
+{{-   $dot := default . .dot -}}
+    tls:
+{{-   if $dot.Values.global.ingress.config }}
+{{-     if $dot.Values.global.ingress.config.tls }}
+      certificateRefs:
+        - kind: Secret
+          group: ""
+          name: {{ default "ingress-tls-secret" $dot.Values.global.ingress.config.tls.secret }}
+{{-     else }}
+      certificateRefs:
+        - kind: Secret
+          group: ""
+          name: "ingress-tls-secret"
+{{-     end }}
+{{-   else }}
+      certificateRefs:
+        - kind: Secret
+          group: ""
+          name: "ingress-tls-secret"
+{{-   end }}
+      mode: Terminate
+{{- end -}}
+
+{{/*
+  GW-API Helper function to add the tls route
+*/}}
+{{- define "gwapi.config.tls" -}}
+{{-   $dot := default . .dot -}}
+{{-   $service := (required "'service' param, set to the specific service, is required." .service) -}}
+{{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) -}}
+{{-   if $service.exposedPort }}
+{{-     if $service.exposedProtocol }}
+{{-       if eq $service.exposedProtocol "TLS" }}
+    {{ include "gwapi.config.tls_simple" (dict "dot" $dot ) }}
+{{-       end }}
+{{-     end }}
+{{-   else }}
+{{-     if (include "common.ingress._tlsRedirect" (dict "dot" $dot)) }}
+  - name: HTTPS-443
+    port: 443
+    protocol: HTTPS
+    hostname: {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
+    {{ include "gwapi.config.tls_simple" (dict "dot" $dot ) }}
+{{-     end }}
+{{-   end }}
+{{- end -}}
+
+{{/*
+  Create Listener entry in the Gateway resource
+*/}}
+{{- define "gwapi.config.listener" -}}
+{{-   $dot := default . .dot -}}
+{{-   $service := (required "'service' param, set to the specific service, is required." .service) -}}
+{{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) -}}
+{{-   $protocol := (required "'protocol' param, set to the specific port, is required." .protocol) -}}
+{{-   $port := default 80 $service.exposedPort -}}
+  - name: {{ $protocol }}-{{ $port }}
+    port: {{ $port }}
+{{-   if $service.exposedProtocol }}
+    protocol: {{ upper $service.exposedProtocol }}
+{{-   else }}
+    protocol: HTTP
+{{-   end }}
+    hostname: {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
+    allowedRoutes:
+      namespaces:
+        from: All
+{{-   if eq $service.protocol "tcp" }}
+        kinds:
+          - kind: TCPRoute
+{{-   else if eq $service.protocol "tcp" }}
+        kinds:
+          - kind: UDPRoute
+{{-   end }}
+    {{- include "gwapi.config.tls" (dict "dot" $dot "service" $service "baseaddr" $baseaddr) }}
+{{- end -}}
+
+{{/*
+  Create *Route entry for the Gateway-API
+*/}}
+{{- define "gwapi.config.route" -}}
+{{-   $dot := default . .dot -}}
+{{-   $service := (required "'service' param, set to the specific service, is required." .service) -}}
+{{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) -}}
+{{-   $protocol := (required "'protocol' param, set to the specific port, is required." .protocol) -}}
+{{-   $gateway := include "common.ingress._commonGateway" (dict "dot" $dot) -}}
+{{-   $namespace := default "istio-ingress" $dot.Values.global.ingress.namespace -}}
+{{-   $path := default "/" $service.path -}}
+{{-   if eq $protocol "udp" -}}
+---
+apiVersion: gateway.networking.k8s.io/v1alpha2
+kind: UDPRoute
+metadata:
+  name: {{ $baseaddr }}-{{ $service.exposedPort }}-route
+spec:
+  parentRefs:
+{{-     if eq $gateway "-" }}
+    - name: {{ $baseaddr }}-gateway
+{{-     else }}
+    - name: {{ $gateway }}
+{{-     end }}
+      namespace: {{ $namespace }}
+      sectionName: udp-{{ $service.exposedPort }}
+  rules:
+    - backendRefs:
+      - name: {{ $service.name }}
+        port: {{ $service.port }}
+{{-   else if eq $protocol "tcp" }}
+---
+apiVersion: gateway.networking.k8s.io/v1alpha2
+kind: TCPRoute
+metadata:
+  name: {{ $baseaddr }}-{{ $service.exposedPort }}-route
+spec:
+  parentRefs:
+{{-     if eq $gateway "-" }}
+    - name: {{ $baseaddr }}-gateway
+{{-     else }}
+    - name: {{ $gateway }}
+{{-     end }}
+      namespace: {{ $namespace }}
+      sectionName: tcp-{{ $service.exposedPort }}
+  rules:
+    - backendRefs:
+      - name: {{ $service.name }}
+        port: {{ $service.port }}
+{{-   else if eq $protocol "http" }}
+---
+apiVersion: gateway.networking.k8s.io/v1beta1
+kind: HTTPRoute
+metadata:
+  name: {{ $baseaddr }}-http-route
+spec:
+  parentRefs:
+{{-     if eq $gateway "-" }}
+    - name: {{ $baseaddr }}-gateway
+{{-     else }}
+    - name: {{ $gateway }}
+{{-     end }}
+      namespace: {{ $namespace }}
+{{-     if (include "common.ingress._tlsRedirect" (dict "dot" $dot)) }}
+      sectionName: {{ include "common.ingress._gatewayHTTPSListener" (dict "dot" $dot) }}
+{{-     else }}
+      sectionName: {{ include "common.ingress._gatewayHTTPListener" (dict "dot" $dot) }}
+{{-     end }}
+  hostnames:
+    - {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
+  rules:
+    - backendRefs:
+      - name: {{ $service.name }}
+        port: {{ $service.port }}
+      matches:
+        - path:
+            type: PathPrefix
+            value: {{ $path }}
+{{-     if (include "common.ingress._tlsRedirect" (dict "dot" $dot)) }}
+---
+apiVersion: gateway.networking.k8s.io/v1beta1
+kind: HTTPRoute
+metadata:
+  name: {{ $baseaddr }}-redirect-route
+spec:
+  parentRefs:
+{{-       if eq $gateway "-" }}
+    - name: {{ $baseaddr }}-gateway
+{{-       else }}
+    - name: {{ $gateway }}
+{{-       end }}
+      namespace: {{ $namespace }}
+      sectionName: {{ include "common.ingress._gatewayHTTPListener" (dict "dot" $dot) }}
+  hostnames:
+    - {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
+  rules:
+    - filters:
+      - type: RequestRedirect
+        requestRedirect:
+          scheme: https
+          statusCode: 301
+          port: 443
+      matches:
+        - path:
+            type: PathPrefix
+            value: {{ $path }}
+{{-     end }}
+{{-   end }}
 {{- end -}}
+
+{{/*
+  Create GW-API Ingress resources per defined service
+*/}}
+{{- define "common.gwapiIngress" -}}
+{{- $dot := default . .dot -}}
+{{- $selector := include "common.ingress._selector" (dict "dot" $dot) }}
+{{- $gateway := include "common.ingress._commonGateway" (dict "dot" $dot) }}
+{{  range $dot.Values.ingress.service }}
+{{-   $baseaddr := (required "'baseaddr' param, set to the specific part of the fqdn, is required." .baseaddr) }}
+{{-   if eq $gateway "-" }}
+---
+apiVersion: gateway.networking.k8s.io/v1beta1
+kind: Gateway
+metadata:
+  name: {{ $baseaddr }}-gateway
+spec:
+  gatewayClassName: {{ $dot.Values.global.serviceMesh.engine }}
+  listeners:
+{{-     if .tcpRoutes }}
+{{        range .tcpRoutes }}
+  {{ include "gwapi.config.listener" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "tcp") | trim }}
+{{-        end -}}
+{{-     else if .udpRoutes }}
+{{        range .udpRoutes }}
+  {{ include "gwapi.config.listener" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "udp") | trim }}
+{{-       end -}}
+{{-     else }}
+{{-       if .protocol }}
+  {{ include "gwapi.config.listener" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" (lower .protocol)) | trim }}
+{{-       else }}
+  {{ include "gwapi.config.listener" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "http") | trim }}
+{{-       end }}
+{{-     end }}
+{{-   end }}
+{{-   if .tcpRoutes }}
+{{      range .tcpRoutes }}
+{{ include "gwapi.config.route" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "tcp") | trim }}
+{{-     end -}}
+{{-   else if .udpRoutes }}
+{{      range .udpRoutes }}
+{{ include "gwapi.config.route" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "udp") | trim }}
+{{-     end -}}
+{{-   else }}
+{{-     if .protocol }}
+{{ include "gwapi.config.route" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" (lower .protocol)) | trim }}
+{{-     else }}
+{{ include "gwapi.config.route" (dict "dot" $dot "service" . "baseaddr" $baseaddr "protocol" "http") | trim }}
+{{-     end }}
+{{-   end }}
+{{- end }}
 {{- end -}}
 
 {{/*
@@ -337,6 +718,9 @@ spec:
 */}}
 {{- define "common.nginxIngress" -}}
 {{- $dot := default . .dot -}}
+{{  range $dot.Values.ingress.service }}
+{{    if eq (include "common.ingress._protocol" (dict "dot" .)) "http" }}
+{{      $baseaddr := required "baseaddr" .baseaddr }}
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
@@ -350,21 +734,21 @@ metadata:
     heritage: {{ $dot.Release.Service }}
 spec:
   rules:
-  {{ include "ingress.config.port" $dot | trim }}
-{{- if $dot.Values.ingress.tls }}
+  {{ include "ingress.config.port" . | trim }}
+{{-     if $dot.Values.ingress.tls }}
   tls:
 {{ toYaml $dot.Values.ingress.tls | indent 4 }}
-{{- end -}}
-{{- if $dot.Values.ingress.config -}}
-{{-   if $dot.Values.ingress.config.tls }}
+{{-     end -}}
+{{-     if $dot.Values.ingress.config -}}
+{{-       if $dot.Values.ingress.config.tls }}
   tls:
   - hosts:
-  {{-   range $dot.Values.ingress.service }}{{ $baseaddr := required "baseaddr" .baseaddr }}
-    - {{ include "ingress.config.host" (dict "dot" $dot "baseaddr" $baseaddr) }}
-  {{-   end }}
+    - {{ include "ingress.config.host" (dict "dot" . "baseaddr" $baseaddr) }}
     secretName: {{ required "secret" (tpl (default "" $dot.Values.ingress.config.tls.secret) $dot) }}
-{{-   end -}}
-{{- end -}}
+{{-       end }}
+{{-     end }}
+{{-   end }}
+{{- end }}
 {{- end -}}
 
 {{/*
@@ -381,22 +765,29 @@ spec:
     | true                   | true                      | any            | ingress    |
     | true                   | false                     | true           | ingress    |
 
-    If ServiceMesh (Istio) is enabled the respective resources are created:
-    - Gateway
+    If ServiceMesh (Ingress-Provider: Istio) is enabled the respective resources
+    are created:
+    - Gateway (optional)
     - VirtualService
 
+    If ServiceMesh (Ingress-Provider: GatewayAPI) is enabled the respective resources
+    are created:
+    - Gateway (optional)
+    - HTTPRoute, TCPRoute, UDPRoute (depending)
+
     If ServiceMesh is disabled the standard Ingress resource is creates:
     - Ingress
 */}}
 {{- define "common.ingress" -}}
 {{-   $dot := default . .dot -}}
+{{-   $provider := include "common.ingress._provider" (dict "dot" $dot) -}}
 {{-   if (include "common.ingress._enabled" (dict "dot" $dot)) }}
-{{-     if (include "common.onServiceMesh" .) }}
-{{-       if eq (default "istio" .Values.global.serviceMesh.engine) "istio" }}
-{{          include "common.istioIngress" (dict "dot" $dot) }}
-{{-       end -}}
-{{-     else -}}
+{{-     if eq $provider "ingress" -}}
 {{        include "common.nginxIngress" (dict "dot" $dot) }}
+{{-     else if eq $provider "istio" -}}
+{{        include "common.istioIngress" (dict "dot" $dot) }}
+{{-     else if eq $provider "gw-api" -}}
+{{        include "common.gwapiIngress" (dict "dot" $dot) }}
 {{-     end -}}
 {{-   end -}}
 {{- end -}}
diff --git a/kubernetes/onap/resources/overrides/onap-all-ingress-istio.yaml b/kubernetes/onap/resources/overrides/onap-all-ingress-istio.yaml
index c04d397a9a..eeb5fc453b 100644
--- a/kubernetes/onap/resources/overrides/onap-all-ingress-istio.yaml
+++ b/kubernetes/onap/resources/overrides/onap-all-ingress-istio.yaml
@@ -22,6 +22,20 @@ global:
     # enable all component's Ingress interfaces
     enable_all: true
     # All http requests via ingress will be redirected
+
+    # Provider: ingress, istio, gw-api
+    provider: istio
+    # Ingress class (only for provider "ingress"): e.g. nginx, traefik
+    ingressClass:
+    # Ingress Selector (only for provider "istio") to match with the
+    # ingress pod label "istio=ingress"
+    ingressSelector: ingress
+    # optional: common used Gateway (for Istio, GW-API) and listener names
+    commonGateway:
+      name: ""
+      httpListener: ""
+      httpsListener: ""
+
     virtualhost:
       # Default Ingress base URL
       # can be overwritten in component by setting ingress.baseurlOverride
diff --git a/kubernetes/onap/resources/overrides/onap-all-ingress-nginx-vhost.yaml b/kubernetes/onap/resources/overrides/onap-all-ingress-nginx-vhost.yaml
index ac3979ea9d..6d94f9912e 100644
--- a/kubernetes/onap/resources/overrides/onap-all-ingress-nginx-vhost.yaml
+++ b/kubernetes/onap/resources/overrides/onap-all-ingress-nginx-vhost.yaml
@@ -20,6 +20,19 @@ global:
   ingress:
     enabled: true
     enable_all: true
+    # Provider: ingress, istio, gw-api
+    provider: ingress
+    # Ingress class (only for provider "ingress"): e.g. nginx, traefik
+    ingressClass: nginx
+    # Ingress Selector (only for provider "istio") to match with the
+    # ingress pod label "istio=ingress"
+    ingressSelector: ingress
+    # optional: common used Gateway (for Istio, GW-API) and listener names
+    commonGateway:
+      name: ""
+      httpListener: ""
+      httpsListener: ""
+
 cassandra:
   enabled: true
 mariadb-galera:
diff --git a/kubernetes/onap/values.yaml b/kubernetes/onap/values.yaml
index 0456ce5a96..5697477ce4 100755
--- a/kubernetes/onap/values.yaml
+++ b/kubernetes/onap/values.yaml
@@ -134,6 +134,19 @@ global:
     # enable all component's Ingress interfaces
     enable_all: false
 
+    # Provider: ingress, istio, gw-api
+    provider: istio
+    # Ingress class (only for provider "ingress"): e.g. nginx, traefik
+    ingressClass:
+    # Ingress Selector (only for provider "istio") to match with the
+    # ingress pod label "istio=ingress"
+    ingressSelector: ingress
+    # optional: common used Gateway (for Istio, GW-API) and listener names
+    commonGateway:
+      name: ""
+      httpListener: ""
+      httpsListener: ""
+
     # default Ingress base URL and preAddr- and postAddr settings
     # Ingress URLs result:
     # <preaddr><component.ingress.service.baseaddr><postaddr>.<baseurl>
@@ -158,7 +171,7 @@ global:
     #  tls:
     #    secret: 'my-ingress-cert'
 
-    # optional: Namespace of the Istio IngressGateway
+    # optional: Namespace of the Istio IngressGateway or Gateway-API
     # only valid for Istio Gateway (ServiceMesh enabled)
     namespace: istio-ingress