Add load balancer (#453)

app/Models/LoadBalancerServer.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+/**
+ * @property int $load_balancer_id
+ * @property string $ip
+ * @property int $port
+ * @property int $weight
+ * @property bool $backup
+ * @property Site $loadBalancer
+ */
+class LoadBalancerServer extends AbstractModel
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'load_balancer_id',
+        'ip',
+        'port',
+        'weight',
+        'backup',
+    ];
+
+    protected $casts = [
+        'load_balancer_id' => 'integer',
+        'port' => 'integer',
+        'weight' => 'integer',
+        'backup' => 'boolean',
+    ];
+
+    public function loadBalancer(): BelongsTo
+    {
+        return $this->belongsTo(Site::class, 'load_balancer_id');
+    }
+
+    public function server(): ?Server
+    {
+        return $this->loadBalancer->project->servers()->where('local_ip', $this->ip)->first();
+    }
+}

app/Models/Site.php

@@ -16,6 +16,7 @@
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\HasOne;
 use Illuminate\Database\Eloquent\Relations\MorphToMany;
+use Illuminate\Support\Collection;
 use Illuminate\Support\Str;
 
 /**
@@ -47,6 +48,7 @@
  * @property ?Ssl $activeSsl
  * @property string $ssh_key_name
  * @property ?SourceControl $sourceControl
+ * @property Collection<LoadBalancerServer> $loadBalancerServers
  *
  * @TODO: Add nodejs_version column
  */
@@ -332,4 +334,9 @@ public function webserver(): Webserver
 
         return $webserver;
     }
+
+    public function loadBalancerServers(): HasMany
+    {
+        return $this->hasMany(LoadBalancerServer::class, 'load_balancer_id');
+    }
 }