doc:add backup dir and add backup introduce

docs/content/en/docs/fleet-manager/backup/_index.md

@@ -0,0 +1,44 @@
+---
+title: "Unified Backup, Restore, and Migration"
+linkTitle: "Unified Backup"
+weight: 40
+description: >
+  The easiest way to manage multi cluster Unified Backup, Restore, and Migration with Fleet.
+---
+
+Kurator provides a unified solution for backup, restore, and migration of applications and their related cluster resources across multiple Fleet clusters. 
+This approach addresses the challenges of managing these tasks across various environments, ensuring clarity and consistency for users.
+
+Through its integration with [Velero](https://velero.io/), Kurator delivers a one-click solution with a unified status view. This empowers users with efficient management and clear visibility into application backups, restores, and migrations across Fleet clusters.
+
+The following are the main benefits of this feature.
+
+- **Simplified Multi-cluster Operations**: Streamlining management and operational tasks across various clusters for easier resource handling.
+
+- **Backup Support with Scheduled and Immediate Options**: Automate regular backups for data protection and compliance, along with immediate backup options for on-demand needs.
+
+- **One-stop, Flexible Disaster Recovery Solution**: Providing a robust and flexible solution for disaster recovery, allowing tailored recovery of specific resources in specific clusters to ensure operational continuity in adverse scenarios.
+
+- **Effortless Cluster Resource Migration**: Facilitating smooth migration of resources across multiple clusters for workload balancing or transitions to new environments.
+
+- **Unified Status View**: Offering a clear, unified view of resources and backup statuses across clusters, enhancing visibility and control.
+
+## Architecture
+
+Below is the architecture diagram of the Kurator Fleet Backup feature.
+
+{{< image width="100%"
+link="./image/backup-arch.svg"
+>}}
+
+### Key Components Overview
+
+- **Kurator Fleet Manager**: The core management component, responsible for managing fleet and backup engines.
+
+- **Backup Engine**: This component handles the backup and restore processes.
+
+- **Object Storage**: The external storage solutions, such as Minio or cloud providers, where the backups are stored.
+
+
+To use Kurator for backup, restore, and migration scenarios, you must first configure and install the necessary backup engine plugin.
+Please refer to the subsequent sections for detailed guidance on plugin configuration and instructions for each specific operation.

docs/content/en/docs/fleet-manager/backup-plugin.md → docs/content/en/docs/fleet-manager/backup/backup-plugin.md

@@ -1,30 +1,13 @@
 ---
-title: "Kurator Fleet Backup Plugin Configuration Guide"
-linkTitle: "Kurator Fleet Backup Plugin Configuration Guide"
-weight: 40
+title: "Install Backup Plugin"
+linkTitle: "Install Backup Plugin"
+weight: 10
 description: >
-  The easiest way to manage multi cluster backup plugin with fleet.
+  Configure backup plugin for Fleet to enable Kurator's capabilities.
 ---
 
 To support Kurator's unified backup, restore, and migration features, it's imperative to first configure the backup plugin for [Fleet](https://kurator.dev/docs/references/fleet-api/#fleet). This guide will walk you through configuring the [Velero](https://velero.io/)-based backup plugin for Fleet, laying the groundwork for Kurator's unified backup, restore, and migration capabilities.
 
-## Architecture
-
-Before diving into the specifics, let's take a moment to understand the overall architecture and how various components interact with each other. Below is the architecture diagram of the Kurator Fleet Backup Plugin.
-
-{{< image width="100%"
-    link="./image/backup-arch.svg"
-    >}}
-
-The diagram illustrates:
-
-- **Fleet Manager**: The central management entity, responsible for orchestrating the operations.
-- **Velero Integration**: How the backup and restore processes are handled using Velero.
-- **Object Storage**: The external storage solutions, such as Minio or cloud providers, where the backups are stored.
-- **Interactions**: The arrows depict the flow of data and interactions between various components.
-
-With this architectural view in mind, let's proceed with the essential setup steps and configurations required to implement this architecture.
-
 ## Prerequisites
 
 ### 1. Fleet Manager Setup