improve ingress nginx documentation accuracy

crowdsec-docs/unversioned/bouncers/ingress-nginx.mdx

@@ -30,10 +30,6 @@ import RemediationSupportBadges from '@site/src/components/remediation-support-b
 
 A lua Remediation Component for Ingress Nginx Controller.
 
-:::warning
-Ingress Nginx Version **1.12** or higher currently is not supported due to removal of Lua plugins support see [this issue](https://github.com/crowdsecurity/cs-openresty-bouncer/issues/60) for latest news.
-:::
-
 ## How does it work ?
 
 This component leverages OpenResty lua's API, used the ingress nginx controller as a [plugin](https://github.com/kubernetes/ingress-nginx/blob/main/rootfs/etc/nginx/lua/plugins/README.md).
@@ -57,10 +53,23 @@ The Ingress nginx controller should be installed using the [official helm chart]
 
 ### Using Helm
 
-First you need to create new ingress-nginx chart values file (`crowdsec-ingress-bouncer.yaml`) to upgrade the ingress controller with the crowdsec plugin.
+First you need to create new ingress-nginx chart values file (`crowdsec-ingress-values.yaml`) to upgrade the ingress controller with the crowdsec plugin.
+
+:::warning
+
+Lua support has been removed from mainline ingress nginx in version 1.12. As
+CrowdSec remediation relies on lua, you need to use our controller image as
+shown in the following values.yaml.
+:::
+
 
 ```yaml
 controller:
+  image:
+    PullPolicy: IfNotPresent
+    image: crowdsecurity/controller
+    # Crowdsec Remediation with Ingress Nginx requires to use our controller image
+    tag: latest
   extraVolumes:
   - name: crowdsec-bouncer-plugin
     emptyDir: {}
@@ -115,14 +124,34 @@ controller:
       resolver local=on ipv6=off;
 ```
 
-This values upgrade your ingress deployment to add crowdsec lua lib as a plugin and run with the ingress controller.
-It used [this docker image](https://hub.docker.com/r/crowdsecurity/lua-bouncer-plugin) to copy the crowdsec lua library.
+<details>
+    <summary>You already have a deployed ingress nginx</summary>
+
+This values.yaml upgrade your ingress deployment to add crowdsec lua lib as a
+plugin and run with the crowdsec maintained nginx ingress controller with lua
+support. It uses [this docker
+image](https://hub.docker.com/r/crowdsecurity/lua-bouncer-plugin) to copy the
+crowdsec lua library. You can upgrade the ingress-nginx using this `crowdsec-ingress-values.yaml`
+
+```bash
+helm -n ingress-nginx upgrade -f ingress-nginx-values.yaml -f crowdsec-ingress-values.yaml ingress-nginx/ingress-nginx
+```
+
+</details>
+
+<details>
+    <summary>You don't have a deployed ingress nginx</summary>
 
-Once you have this patch we can upgrade the ingress-nginx chart.
+This values.yaml install your ingress deployment to add crowdsec lua lib as a
+plugin and run with the crowdsec maintained nginx ingress controller with lua
+support. It uses [this docker
+image](https://hub.docker.com/r/crowdsecurity/lua-bouncer-plugin) to copy the
+crowdsec lua library. You can install the ingress-nginx using this `crowdsec-ingress-values.yaml`
 
 ```bash
-helm -n ingress-nginx upgrade -f ingress-nginx-values.yaml -f crowdsec-ingress-bouncer.yaml ingress-nginx ingress-nginx
+helm -n ingress-nginx install -f crowdsec-ingress-values.yaml ingress-nginx ingress-nginx/ingress-nginx
 ```
+</details>
 
 And then check if the ingress controller is running well.