feat(docs): migration to new XOA (#5542)

Co-authored-by: Jon Sands <fohdeesha@gmail.com>

docs/.vuepress/config.js

@@ -35,6 +35,7 @@ module.exports = {
           ['/supported_hosts', 'Host Compatibility List'],
           ['/installation', 'Installation'],
           ['/configuration', 'Configuration'],
+          ['/migrate_to_new_xoa', 'Migrate to new XOA'],
           ['/updater', 'Updates'],
           ['/architecture', 'Architecture'],
           ['/troubleshooting', 'Troubleshooting'],

docs/migrate_to_new_xoa.md

@@ -0,0 +1,25 @@
+### Deploy new appliance
+
+First step, you have to deploy a new appliance. All needed information is [here](installation.md)
+
+### Export configuration
+
+To export your current configuration, navigate to **Settings** -> **Config**.
+Here you will see a button labeled **_Download current config_**. Click on it, then an export modal will appear.
+
+![](./assets/exportModal.png)
+
+You can set a passphrase to encrypt the exported configuration.
+
+### Import configuration
+
+Now it's time to import your configuration to the new appliance.
+Go to the **Settings** -> **Config** page of your new appliance. Here you have an **_import_** section where you can drag and drop your exported configuration file.
+
+![](./assets/importModal.png)
+
+When your configuration is loaded, click to import. A new modal will appear to ask you the passphrase to decrypt your configuration. If you didn't set a passphrase when you exported your configuration, leave it empty.
+
+### Advanced users
+
+If you made custom adjustments to the `/etc/xo-server` config file on your previous appliance, unfortunately you will have to recreate these modifications on the new appliance.