Implement Keystone environment deployments

app/Http/Controllers/EnvironmentDeploymentController.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Jobs\Environments\DeployEnvironment;
+use App\Models\Application;
+use App\Models\Environment;
+use App\Models\Organisation;
+use Illuminate\Http\RedirectResponse;
+
+class EnvironmentDeploymentController extends Controller
+{
+    public function store(Organisation $organisation, Application $application, Environment $environment): RedirectResponse
+    {
+        abort_unless(
+            (int) $application->organisation_id === (int) $organisation->id
+            && (int) $environment->application_id === (int) $application->id,
+            404,
+        );
+
+        dispatch(new DeployEnvironment($environment));
+
+        return redirect()->route('environments.show', [
+            'organisation' => $organisation->id,
+            'application' => $application->id,
+            'environment' => $environment->id,
+        ]);
+    }
+}