chore(auth): add dockerfile and gateway guard

Author: Sakeeb91

apps/api-gateway/src/middleware/auth.ts

@@ -0,0 +1,18 @@
+import { loadConfig } from '@services/auth/src/config/env';
+import { createAuthMiddleware } from '@services/auth/src/middleware/auth.middleware';
+
+type Middleware = (req: unknown, res: unknown, next: () => void) => void;
+
+let guard: Middleware | null = null;
+
+/**
+ * Provides the auth middleware from the auth service so the API gateway can
+ * reuse the same JWT verification logic.
+ */
+export function getAuthGuard(): Middleware {
+  if (!guard) {
+    const { authenticate } = createAuthMiddleware(loadConfig());
+    guard = authenticate;
+  }
+  return guard;
+}

services/auth/Dockerfile

@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1.5
+
+FROM node:20-alpine AS base
+WORKDIR /app
+
+RUN corepack enable
+
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml turbo.json ./
+COPY packages/tooling/package.json packages/tooling/package.json
+COPY packages/logging/package.json packages/logging/package.json
+COPY packages/database/package.json packages/database/package.json
+COPY services/auth/package.json services/auth/package.json
+
+RUN pnpm fetch --filter @scribemed/auth-service...
+
+COPY . .
+
+RUN pnpm install --filter @scribemed/auth-service... --prod --offline \
+  && pnpm --filter @scribemed/auth-service run build
+
+EXPOSE 8085
+
+CMD ["node", "services/auth/dist/index.js"]