Add load balancer (#453)

app/SiteTypes/AbstractSiteType.php

@@ -34,7 +34,7 @@ public function data(array $input): array
 
     public function editRules(array $input): array
     {
-        return [];
+        return $this->createRules($input);
     }
 
     protected function progress(int $percentage): void

app/SiteTypes/LoadBalancer.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\SiteTypes;
+
+use App\Enums\LoadBalancerMethod;
+use App\Enums\SiteFeature;
+use App\Exceptions\SSHError;
+use App\SSH\Services\Webserver\Webserver;
+use Illuminate\Validation\Rule;
+
+class LoadBalancer extends AbstractSiteType
+{
+    public function language(): string
+    {
+        return 'yaml';
+    }
+
+    public function supportedFeatures(): array
+    {
+        return [
+            SiteFeature::SSL,
+        ];
+    }
+
+    public function createRules(array $input): array
+    {
+        return [
+            'method' => [
+                'required',
+                Rule::in(LoadBalancerMethod::all()),
+            ],
+        ];
+    }
+
+    public function data(array $input): array
+    {
+        return [
+            'method' => $input['method'] ?? LoadBalancerMethod::ROUND_ROBIN,
+        ];
+    }
+
+    /**
+     * @throws SSHError
+     */
+    public function install(): void
+    {
+        $this->isolate();
+
+        /** @var Webserver $webserver */
+        $webserver = $this->site->server->webserver()->handler();
+        $webserver->createVHost($this->site);
+    }
+
+    public function edit(): void
+    {
+        //
+    }
+}