first commit

packages/testing/containers/service-stack.ts

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+import type { ServiceName } from './services/types';
+import { createN8NStack, type N8NStack } from './stack';
+
+export interface ServiceStackOptions {
+	services: ServiceName[];
+	projectName?: string;
+}
+
+/**
+ * Creates a stack with only services (no n8n containers).
+ * Useful for integration tests that need databases/services but not full n8n.
+ *
+ * @example
+ * const stack = await createServiceStack({ services: ['postgres'] });
+ * const pgContainer = stack.serviceResults.postgres?.container;
+ * const host = pgContainer.getHost();
+ * const port = pgContainer.getMappedPort(5432);
+ * await stack.stop();
+ */
+export async function createServiceStack(options: ServiceStackOptions): Promise<N8NStack> {
+	const { services, projectName } = options;
+
+	return await createN8NStack({
+		mains: 0,
+		workers: 0,
+		postgres: services.includes('postgres'),
+		services,
+		projectName,
+		external: true,
+	});
+}