Detect and validate app runtime from uploaded archives.

Reject zip uploads when the selected runtime does not match archive contents, and re-validate before Kaniko builds to fail fast instead of producing the wrong Dockerfile.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/build/build.service.spec.ts

@@ -1,5 +1,6 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { ConfigService } from '@nestjs/config';
+import * as path from 'path';
 import { BuildService } from './build.service';
 import { Application } from '../applications/entities/application.entity';
 import { AppRuntime } from '../common/enums';
@@ -53,6 +54,21 @@ describe('BuildService', () => {
       expect(dockerfile).toContain('EXPOSE 8080');
     });
 
+    it('generates Go Dockerfile with cmd package when present in archive entries', () => {
+      const app = {
+        runtime: AppRuntime.GO,
+        runtimeVersion: '1.22',
+        port: 8080,
+      } as Application;
+
+      const dockerfile = (service as any).generateDockerfile(app, [
+        'go.mod',
+        'cmd/server/main.go',
+      ]) as string;
+
+      expect(dockerfile).toContain('go build -a -installsuffix cgo -ldflags="-w -s" -o main ./cmd/server');
+    });
+
     it('generates Node.js Dockerfile with default port', () => {
       const app = {
         runtime: AppRuntime.NODEJS,
@@ -64,5 +80,52 @@ describe('BuildService', () => {
       expect(dockerfile).toContain('FROM node:20');
       expect(dockerfile).toContain('EXPOSE 3000');
     });
+
+    it('generates Laravel Dockerfile with artisan migrate', () => {
+      const app = {
+        runtime: AppRuntime.LARAVEL,
+        phpVersion: '8.3',
+      } as Application;
+
+      const dockerfile = (service as any).generateDockerfile(app) as string;
+
+      expect(dockerfile).toContain('php:8.3');
+      expect(dockerfile).toContain('artisan migrate');
+    });
+
+    it('generates WordPress Dockerfile with official image', () => {
+      const app = {
+        runtime: AppRuntime.WORDPRESS,
+        runtimeVersion: '6.4',
+      } as Application;
+
+      const dockerfile = (service as any).generateDockerfile(app) as string;
+
+      expect(dockerfile).toContain('wordpress:6.4');
+    });
+
+    it('generates Django Dockerfile with detected settings module', () => {
+      const app = {
+        runtime: AppRuntime.DJANGO,
+        runtimeVersion: '3.12',
+      } as Application;
+
+      const dockerfile = (service as any).generateDockerfile(app, ['myproject/settings.py']) as string;
+
+      expect(dockerfile).toContain('DJANGO_SETTINGS_MODULE=myproject.settings');
+      expect(dockerfile).toContain('gunicorn');
+    });
+
+    it('generates .NET Dockerfile that restores nested csproj', () => {
+      const app = {
+        runtime: AppRuntime.DOTNET,
+        runtimeVersion: '8.0',
+      } as Application;
+
+      const dockerfile = (service as any).generateDockerfile(app, ['src/App/App.csproj']) as string;
+
+      expect(dockerfile).toContain('CSPROJ="src/App/App.csproj"');
+      expect(dockerfile).toContain('dotnet publish "$CSPROJ"');
+    });
   });
 });