Add step for rewriting image names in backup and restore resources

Author: paigecalvert

docs/vendor/embedded-disaster-recovery.mdx

@@ -95,7 +95,40 @@ To configure Velero Backup and Restore custom resources for Embedded Cluster dis
        - '*'
      ```
 
-1. (Optional) You can use Velero functionality like [backup](https://velero.io/docs/main/backup-hooks/) and [restore](https://velero.io/docs/main/restore-hooks/) hooks to customize the backup and restore process as needed.
+1. For any image names that you include in your Backup and Restore resources, rewrite the image name using the Replicated KOTS [HasLocalRegistry](/reference/template-functions-config-context#haslocalregistry), [LocalRegistryHost](/reference/template-functions-config-context#localregistryhost), and [LocalRegistryNamespace](/reference/template-functions-config-context#localregistrynamespace) template functions. This ensures that the image name is rendered correctly during deployment, allowing the image to be pulled from the user's local image registry (such as in air gap installations) or through the Replicated proxy service. If an image name is not templated, then the image is not automatically rewritten by KOTS and cannot be pulled, causing the application to fail to deploy after a restore.
+
+      **Example:**
+
+      ```yaml
+      apiVersion: velero.io/v1
+      kind: Restore
+      metadata:
+        name: restore
+      spec:
+        hooks:
+          resources:
+          - name: restore-hook-1
+            includedNamespaces:
+            - kotsadm
+            labelSelector:
+              matchLabels:
+                app: example
+            postHooks:
+            - init:
+                initContainers:
+                - name: restore-hook-init1
+                  image: 
+                    # Use HasLocalRegistry, LocalRegistryHost, and LocalRegistryNamespace
+                    # to template the image name
+                    registry: '{{repl HasLocalRegistry | ternary LocalRegistryHost "proxy.replicated.com" }}'
+                    repository: '{{repl HasLocalRegistry | ternary LocalRegistryNamespace "proxy/my-app/quay.io/my-org" }}/nginx'
+                    tag: 1.24-alpine
+      ``` 
+      :::note
+      For more information about and additional examples of how to rewrite image names using the KOTS [HasLocalRegistry](/reference/template-functions-config-context#haslocalregistry), [LocalRegistryHost](/reference/template-functions-config-context#localregistryhost), and [LocalRegistryNamespace](/reference/template-functions-config-context#localregistrynamespace) template functions, see [Task 1: Rewrite Image Names](helm-native-v2-using#rewrite-image-names) in _Configuring the HelmChart v2 Custom Resource_.
+      :::
+
+1. (Optional) Use Velero functionality like [backup](https://velero.io/docs/main/backup-hooks/) and [restore](https://velero.io/docs/main/restore-hooks/) hooks to customize the backup and restore process as needed.
 
      **Example**: