Add extra configMaps support to helm chart

Signed-off-by: Stavros Foteinopoulos <stafot@gmail.com>

charts/ingress-nginx/Chart.yaml

@@ -19,4 +19,4 @@ maintainers:
 name: ingress-nginx
 sources:
 - https://github.com/kubernetes/ingress-nginx
-version: 4.8.3
+version: 4.8.4

charts/ingress-nginx/README.md

@@ -2,7 +2,7 @@
 
 [ingress-nginx](https://github.com/kubernetes/ingress-nginx) Ingress controller for Kubernetes using NGINX as a reverse proxy and load balancer
 
-![Version: 4.8.3](https://img.shields.io/badge/Version-4.8.3-informational?style=flat-square) ![AppVersion: 1.9.4](https://img.shields.io/badge/AppVersion-1.9.4-informational?style=flat-square)
+![Version: 4.8.4](https://img.shields.io/badge/Version-4.8.4-informational?style=flat-square) ![AppVersion: 1.9.4](https://img.shields.io/badge/AppVersion-1.9.4-informational?style=flat-square)
 
 To use, add `ingressClassName: nginx` spec field or the `kubernetes.io/ingress.class: nginx` annotation to your Ingress resources.
 
@@ -464,6 +464,7 @@ As of version `1.26.0` of this chart, by simply not providing any clusterIP valu
 | defaultBackend.enabled | bool | `false` |  |
 | defaultBackend.existingPsp | string | `""` | Use an existing PSP instead of creating one |
 | defaultBackend.extraArgs | object | `{}` |  |
+| defaultBackend.extraConfigMaps | list | `[]` |  |
 | defaultBackend.extraEnvs | list | `[]` | Additional environment variables to set for defaultBackend pods |
 | defaultBackend.extraVolumeMounts | list | `[]` |  |
 | defaultBackend.extraVolumes | list | `[]` |  |

charts/ingress-nginx/templates/default-backend-extra-configmaps.yaml

@@ -0,0 +1,22 @@
+{{- if .Values.defaultBackend.enabled }}
+  {{- range .Values.defaultBackend.extraConfigMaps }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .name }}
+  namespace: {{ include "ingress-nginx.namespace" . }}
+  labels:
+    {{- include "ingress-nginx.labels" $ | nindent 4 }}
+    {{- with $.Values.defaultBackend.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+    {{- with .labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+data:
+  {{- with .data }}
+  {{- toYaml . | nindent 2 }}
+  {{- end }}
+  {{- end }}
+{{- end }}
+

charts/ingress-nginx/values.yaml

@@ -927,6 +927,21 @@ defaultBackend:
   ## Additional volumes to the default backend pod.
   #  - name: copy-portal-skins
   #    emptyDir: {}
+  extraConfigMaps: []
+    ## Additional configmaps to the default backend pod.
+    # Example ConfigMap, uncomment and configure as needed
+    # - name: my-extra-configmap-1
+    #   labels:
+    #     type: config-1
+    #   data:
+    #     extra_file_1.html: |
+    #       <!-- Extra HTML content for ConfigMap 1 -->
+    # - name: my-extra-configmap-2
+    #   labels:
+    #     type: config-2
+    #   data:
+    #     extra_file_2.html: |
+    #       <!-- Extra HTML content for ConfigMap 2 -->
 
   autoscaling:
     annotations: {}