[ingress-controller] Redesigned controller parameters

This PS consolidates control over ingress class name and controller
class names at one place.

Change-Id: I394ec99e0e6177c8c8553b636e3fda90c967c15b

ingress/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v1.5.1
 description: OpenStack-Helm Ingress Controller
 name: ingress
-version: 0.2.17
+version: 0.2.18
 home: https://github.com/kubernetes/ingress
 sources:
   - https://github.com/kubernetes/ingress

ingress/templates/bin/_ingress-controller.sh.tpl

@@ -46,7 +46,9 @@ function start () {
       --election-id=${RELEASE_NAME} \
       --controller-class=${CONTROLLER_CLASS} \
       --ingress-class=${INGRESS_CLASS} \
+      {{- if .Values.deployment.cluster.ingressClassByName }}
       --ingress-class-by-name=${INGRESS_CLASS_BY_NAME} \
+        {{- end }}
       --default-backend-service=${POD_NAMESPACE}/${ERROR_PAGE_SERVICE} \
       {{- if .Values.conf.default_ssl_certificate.enabled }}
       {{- $ns := .Values.conf.default_ssl_certificate.namespace | default .Release.Namespace }}

ingress/templates/deployment-ingress.yaml

@@ -15,22 +15,6 @@ limitations under the License.
 {{- if .Values.manifests.deployment_ingress }}
 {{- $envAll := . }}
 
-# Evaluate if we are deploying in cluster mode
-{{- if eq .Values.deployment.mode "cluster" }}
-# Check INGRESS_CLASS empty
-{{- if empty .Values.conf.controller.INGRESS_CLASS -}}
-{{- $_ := set .Values.conf.controller "INGRESS_CLASS" .Values.deployment.cluster.class -}}
-{{- end }}
-# Check CONTROLLER_CLASS empty
-{{- if empty .Values.conf.controller.CONTROLLER_CLASS -}}
-{{- $_ := set .Values.conf.controller "CONTROLLER_CLASS" .Values.deployment.cluster.controllerClass -}}
-{{- end }}
-# Set default values for INGRESS_CLASS & CONTROLLER_CLASS if deploying in namespace mode
-{{- else if eq .Values.deployment.mode "namespace" }}
-{{- $_ := set .Values.conf.controller "INGRESS_CLASS" "nginx" -}}
-{{- $_ := set .Values.conf.controller "CONTROLLER_CLASS" "k8s.io/nginx-ingress" -}}
-{{- end }}
-
 {{- $serviceAccountName := printf "%s-%s" .Release.Name "ingress" }}
 {{ tuple $envAll "ingress" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
 ---
@@ -322,7 +306,14 @@ spec:
               value: {{ .Release.Name | quote }}
             - name: ERROR_PAGE_SERVICE
               value: {{ tuple "ingress" "error_pages" . | include "helm-toolkit.endpoints.hostname_short_endpoint_lookup" | quote }}
-{{ include "helm-toolkit.utils.to_k8s_env_vars" .Values.conf.controller | indent 12 }}
+            - name: INGRESS_CLASS
+              value: "{{ .Values.deployment.cluster.class }}"
+              {{- if .Values.deployment.cluster.ingressClassByName }}
+            - name: INGRESS_CLASS_BY_NAME
+              value: "{{ .Values.deployment.cluster.ingressClassByName }}"
+              {{- end }}
+            - name: CONTROLLER_CLASS
+              value: "{{ .Values.deployment.cluster.controllerClass }}"
           ports:
             - containerPort: {{ tuple "ingress" "internal" "http" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
             {{- if .Values.network.host_namespace }}

ingress/values.yaml

@@ -21,6 +21,7 @@ deployment:
   type: Deployment
   cluster:
     class: "nginx-cluster"
+    ingressClassByName: false
     controllerClass: "k8s.io/nginx-ingress"
 
 images:
@@ -308,23 +309,6 @@ secrets:
   dhparam:
     secret_dhparam: |
 conf:
-  controller:
-    # NOTE: if left blank this is populated from
-    # .deployment.cluster.class in cluster mode, or set to
-    # "nginx" in namespace mode
-    # [IN DEPRECATION] Name of the ingress class this controller satisfies.
-    # The class of an Ingress object is set using the annotation "kubernetes.io/ingress.class" (deprecated).
-    # The parameter --controller-class has precedence over this. (default "nginx")
-    INGRESS_CLASS: null
-    # Define if Ingress Controller should watch for Ingress Class by Name together with Controller Class
-    INGRESS_CLASS_BY_NAME: true
-    # NOTE: if left blank this is populated from
-    # .deployment.cluster.controllerClass in cluster mode, or set to
-    # "k8s.io/nginx-ingress" in namespace mode
-    # Ingress Class Controller value this Ingress satisfies.
-    # The class of an Ingress object is set using the field IngressClassName in Kubernetes clusters version v1.19.0 or higher. The .spec.controller value of the IngressClass
-    # referenced in an Ingress Object should be the same value specified here to make this object be watched. (default "k8s.io/ingress-nginx")
-    CONTROLLER_CLASS: null
   ingress:
     enable-underscores-in-headers: "true"
     # NOTE(portdirect): if left blank this is populated from

ingress/values_overrides/ingress-class-cluster.yaml

@@ -0,0 +1,7 @@
+---
+deployment:
+  mode: cluster
+  type: DaemonSet
+network:
+  host_namespace: true
+...

ingress/values_overrides/ingress-class-namespaced.yaml

@@ -1,9 +1,8 @@
 ---
-conf:
-  ingress:
-    proxy-body-size: 20m
-  controller:
-    INGRESS_CLASS: ucp-ingress
-    INGRESS_CLASS_BY_NAME: true
-    CONTROLLER_CLASS: k8s.io/ucp-ingress
+deployment:
+  mode: namespace
+  type: Deployment
+  cluster:
+    class: "ucp-ingress"
+    controllerClass: "k8s.io/ucp-ingress"
 ...

releasenotes/notes/ingress.yaml

@@ -21,4 +21,5 @@ ingress:
   - 0.2.15 Update kubernetes registry to registry.k8s.io
   - 0.2.16 Updated deprecated IngressClass annotation
   - 0.2.17 Fixed controller parameters
+  - 0.2.18 Fixed some additional controller issues
 ...