Add external storage configuration details (#23460)

Author: kgrzebien

content/admin/github-actions/advanced-configuration-and-troubleshooting/backing-up-and-restoring-github-enterprise-server-with-github-actions-enabled.md

@@ -21,9 +21,35 @@ This is an overview of the steps required to restore {% data variables.product.p
 
 1. Confirm that the original appliance is offline.
 1. Manually configure network settings on the replacement {% data variables.product.prodname_ghe_server %} appliance. Network settings are excluded from the backup snapshot, and are not overwritten by `ghe-restore`.
-1. Configure the replacement appliance to use the same {% data variables.product.prodname_actions %} external storage configuration as the original appliance.
+1. To configure the replacement appliance to use the same {% data variables.product.prodname_actions %} external storage configuration as the original appliance, from the new appliance, set the required parameters with `ghe-config` command.
+    
+    - Azure Blob Storage
+    ```shell
+    ghe-config secrets.actions.storage.blob-provider "azure"
+    ghe-config secrets.actions.storage.azure.connection-string "_Connection_String_"
+    ```
+    - Amazon S3
+    ```shell
+    ghe-config secrets.actions.storage.blob-provider "s3"
+    ghe-config secrets.actions.storage.s3.bucket-name "_S3_Bucket_Name"
+    ghe-config secrets.actions.storage.s3.service-url "_S3_Service_URL_"
+    ghe-config secrets.actions.storage.s3.access-key-id "_S3_Access_Key_ID_"
+    ghe-config secrets.actions.storage.s3.access-secret "_S3_Access_Secret_"
+    ```
+    - Optionally, to enable S3 force path style, enter the following command:
+    ```shell
+    ghe-config secrets.actions.storage.s3.force-path-style true
+    ```
+      
+
 1. Enable {% data variables.product.prodname_actions %} on the replacement appliance. This will connect the replacement appliance to the same  external storage for {% data variables.product.prodname_actions %}.
-1. After {% data variables.product.prodname_actions %} is configured with the external storage provider, use the `ghe-restore` command to restore the rest of the data from the backup. For more information, see "[Restoring a backup](/admin/configuration/configuring-backups-on-your-appliance#restoring-a-backup)."
+
+    ```shell
+    ghe-config app.actions.enabled true
+    ghe-config-apply
+    ```
+
+1. After {% data variables.product.prodname_actions %} is configured and enabled, use the `ghe-restore` command to restore the rest of the data from the backup. For more information, see "[Restoring a backup](/admin/configuration/configuring-backups-on-your-appliance#restoring-a-backup)."
 1. Re-register your self-hosted runners on the replacement appliance. For more information, see [Adding self-hosted runners](/actions/hosting-your-own-runners/adding-self-hosted-runners).
 
 For more information on backing up and restoring {% data variables.product.prodname_ghe_server %}, see "[Configuring backups on your appliance](/admin/configuration/configuring-backups-on-your-appliance)."