Implement Keystone environment deployments

tests/Feature/EnvironmentWorkerControllerTest.php

@@ -0,0 +1,55 @@
+<?php
+
+use App\Enums\DeployPolicy;
+use App\Enums\ServiceType;
+use App\Models\Application;
+use App\Models\Environment;
+use App\Models\Organisation;
+use App\Models\User;
+
+it('creates a dedicated laravel worker service for an environment', function () {
+    $user = User::factory()->create();
+    $organisation = Organisation::factory()->create(['owner_id' => $user->id]);
+    $application = Application::factory()->for($organisation)->create();
+    $environment = Environment::factory()->for($application)->create([
+        'build_config' => [
+            'php_version' => '8.4',
+        ],
+    ]);
+
+    $response = $this->actingAs($user)->post(route('environment-workers.store', [
+        'organisation' => $organisation->id,
+        'application' => $application->id,
+        'environment' => $environment->id,
+    ]));
+
+    $response->assertRedirect(route('applications.show', [
+        'organisation' => $organisation->id,
+        'application' => $application->id,
+    ]));
+
+    $worker = $environment->services()->where('name', 'worker')->firstOrFail();
+
+    expect($worker->type)->toBe(ServiceType::LARAVEL)
+        ->and($worker->deploy_policy)->toBe(DeployPolicy::WITH_ENVIRONMENT)
+        ->and($worker->process_roles)->toBe(['worker'])
+        ->and($worker->config['command'])->toBe('php artisan queue:work --sleep=3 --tries=3');
+});
+
+it('does not create duplicate worker services for repeated clicks', function () {
+    $user = User::factory()->create();
+    $organisation = Organisation::factory()->create(['owner_id' => $user->id]);
+    $application = Application::factory()->for($organisation)->create();
+    $environment = Environment::factory()->for($application)->create();
+
+    $route = route('environment-workers.store', [
+        'organisation' => $organisation->id,
+        'application' => $application->id,
+        'environment' => $environment->id,
+    ]);
+
+    $this->actingAs($user)->post($route);
+    $this->actingAs($user)->post($route);
+
+    expect($environment->services()->where('name', 'worker')->count())->toBe(1);
+});