Implement Keystone environment deployments

app/Models/ServiceReplica.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphMany;
+
+class ServiceReplica extends Model
+{
+    use HasFactory;
+
+    protected $guarded = [];
+
+    protected function casts(): array
+    {
+        return [
+            'cpu_limit' => 'decimal:3',
+            'config' => 'array',
+        ];
+    }
+
+    public function service(): BelongsTo
+    {
+        return $this->belongsTo(Service::class);
+    }
+
+    public function server(): BelongsTo
+    {
+        return $this->belongsTo(Server::class);
+    }
+
+    public function operation(): BelongsTo
+    {
+        return $this->belongsTo(Operation::class);
+    }
+
+    public function operations(): MorphMany
+    {
+        return $this->morphMany(Operation::class, 'target');
+    }
+}