cleanup: Deprecate Ingress-Nginx from kubernetes-apps (#12767)

* [docs] Remove ingress-nginx references in docs and scripts jinja

Signed-off-by: Meza <meza-xyz@proton.me>

* Remove ingress-nginx doc and remove references in readme and sidebar

Signed-off-by: Meza <meza-xyz@proton.me>

* Delete ingress-nginx dir from kubernetes-apps

Signed-off-by: Meza <meza-xyz@proton.me>

* Delete ingress-nginx from inventory addons

Signed-off-by: Meza <meza-xyz@proton.me>

* Delete ingress_nginx_enabled from default main

Signed-off-by: Meza <meza-xyz@proton.me>

* Delete ingress_nginx from download

Signed-off-by: Meza <meza-xyz@proton.me>

* Delete ingress_nginx from dependencies

Signed-off-by: Meza <meza-xyz@proton.me>

* Remove ingress_nginx from registry task

Signed-off-by: Meza <meza-xyz@proton.me>

---------

Signed-off-by: Meza <meza-xyz@proton.me>

roles/kubespray_defaults/defaults/main/download.yml

@@ -309,13 +309,6 @@ local_volume_provisioner_image_tag: "v{{ local_volume_provisioner_version }}"
 local_path_provisioner_version: "0.0.32"
 local_path_provisioner_image_repo: "{{ docker_image_repo }}/rancher/local-path-provisioner"
 local_path_provisioner_image_tag: "v{{ local_path_provisioner_version }}"
-ingress_nginx_version: "1.13.3"
-ingress_nginx_controller_image_repo: "{{ kube_image_repo }}/ingress-nginx/controller"
-ingress_nginx_opentelemetry_image_repo: "{{ kube_image_repo }}/ingress-nginx/opentelemetry"
-ingress_nginx_controller_image_tag: "v{{ ingress_nginx_version }}"
-ingress_nginx_opentelemetry_image_tag: "v20230721-3e2062ee5"
-ingress_nginx_kube_webhook_certgen_image_repo: "{{ kube_image_repo }}/ingress-nginx/kube-webhook-certgen"
-ingress_nginx_kube_webhook_certgen_image_tag: "v1.6.3"
 alb_ingress_image_repo: "{{ docker_image_repo }}/amazon/aws-alb-ingress-controller"
 alb_ingress_image_tag: "v1.1.9"
 cert_manager_version: "1.15.3"
@@ -919,15 +912,6 @@ downloads:
     groups:
       - kube_node
 
-  ingress_nginx_controller:
-    enabled: "{{ ingress_nginx_enabled }}"
-    container: true
-    repo: "{{ ingress_nginx_controller_image_repo }}"
-    tag: "{{ ingress_nginx_controller_image_tag }}"
-    checksum: "{{ ingress_nginx_controller_digest_checksum | default(None) }}"
-    groups:
-      - kube_node
-
   ingress_alb_controller:
     enabled: "{{ ingress_alb_enabled }}"
     container: true

roles/kubespray_defaults/defaults/main/main.yml

@@ -455,7 +455,6 @@ vsphere_csi_enabled: false
 upcloud_csi_enabled: false
 csi_snapshot_controller_enabled: false
 persistent_volumes_enabled: false
-ingress_nginx_enabled: false
 ingress_alb_enabled: false
 cert_manager_enabled: false
 expand_persistent_volumes: false