doc: Add Rancher Turtles uninstallation notes

docs/getting-started/uninstall_turtles_operator.md

@@ -0,0 +1,48 @@
+---
+sidebar_position: 5
+---
+
+# Uninstall Rancher Turtles Operator
+
+This gives an overview of Rancher Turtles Operator uninstallation process. 
+
+:::caution
+When installing Rancher Turtles in your Rancher environment, by default, Rancher Turtles enables the Cluster API Operator cleanup. This includes cleaning up Cluster API Operator specific webhooks and deployments that otherwise cause issues with Rancher provisioning.
+
+To simplify uninstalling Rancher Turtles (via Rancher Manager or helm command), the official Rancher Turtles Helm chart includes a `post-delete` hook that applies these changes, making it transparent to the end user:
+- Delete the `mutating-webhook-configuration` and `validating-webhook-configuration` webhooks that are no longer needed.
+- Delete the CAPI `deployments` that are no longer needed.
+:::
+
+There are two options to uninstall the Rancher Turtles Operator depending on the installation method.
+
+1. Rancher Turtles Operator installed via Rancher Manager (i.e in local cluster, `Apps->Repositories` to add a turtles repository then `Apps->Charts` to install rancher-turtles extension). To uninstall, simply navigate to local cluster, `Apps->Installed Apps`, find `rancher-turtles` extension and click `Delete`. 
+
+2. Rancher Turtles Operator installed via [helm command](install_turtles_operator.md). If you would like to uninstall it manually,
+it can be simply achieived via `helm`:
+
+```bash
+helm uninstall -n rancher-turtles-system rancher-turtles
+```
+
+This may take a few minutes to complete.
+
+:::note
+Remember that, if you use a different name for the installation or a different namespace, you may need to customize the command for your specific configuration.
+:::
+
+Once uninstalled, Rancher's `embedded-cluster-api` feature must be re-enabled:
+
+1. Create a `feature.yaml` file, with `embedded-cluster-api` set to true:
+```yaml title="feature.yaml"
+apiVersion: management.cattle.io/v3
+kind: Feature
+metadata:
+  name: embedded-cluster-api
+spec:
+  value: true
+```
+2. Use `kubectl` to apply the `feature.yaml` file to the cluster:
+```bash
+kubectl apply -f feature.yaml
+```

docs/reference-guides/rancher-turtles-chart/values.md

@@ -15,11 +15,14 @@ When installing Rancher Turtles Operator using the official Helm chart, it is po
 ```yaml
 rancherTurtles:
   features:
+    cluster-api-operator:
+      cleanup: true # indicates that rancher turtles resources are cleaned up after uninstalling (default: true)
+      kubectlImage: registry.k8s.io/kubernetes/kubectl:v1.28.0 # indicates the image to use for post-delete cleanup (default: Kubernetes container image registry)
     embedded-capi: # this is a rancher functionality that is not compatible with rancher-turtles
       disabled: true # indicates that embedded-capi must be disabled during installation (default: true)
     rancher-webhook: # an existing rancher installation keeps rancher webhooks after disabling embedded-capi      
       cleanup: true # indicates that the remaining rancher webhooks be removed (default: true)
-      kubectlImage: rancher/kubectl # indicates the image to use for webhook cleanup (default: rancher/kubectl)
+      kubectlImage: registry.k8s.io/kubernetes/kubectl:v1.28.0 # indicates the image to use for pre-install cleanup (default: Kubernetes container image registry)
     rancher-kubeconfigs: # with capi 1.5.0 and greater, secrets for kubeconfigs must contain a specific label. See https://github.com/kubernetes-sigs/cluster-api/blob/main/docs/book/src/developer/providers/migrations/v1.4-to-v1.5.md#other
       label: true # indicates that the label will be added (default: true)
     managementv3-cluster: # rancher will use `clusters.management.cattle.io` to represent an imported capi cluster

sidebars.js

@@ -27,6 +27,7 @@ const sidebars = {
         'getting-started/rancher',
         'getting-started/install_capi_operator',
         'getting-started/install_turtles_operator',
+        'getting-started/uninstall_turtles_operator',
         {
           type: 'category',
           label: 'Your first cluster',