feat: setup worker service with configuration and entry point

Author: nitesh-vashist

apps/worker/Dockerfile

@@ -0,0 +1,29 @@
+FROM node:20-alpine AS base
+WORKDIR /app
+
+FROM base AS deps
+COPY package.json package-lock.json turbo.json ./
+COPY packages/shared/package.json packages/shared/
+COPY packages/db/package.json packages/db/
+COPY packages/queue/package.json packages/queue/
+COPY apps/worker/package.json apps/worker/
+RUN npm ci
+
+FROM base AS builder
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN npx turbo run build --filter=@taskflow/worker
+
+FROM base AS runner
+ENV NODE_ENV=production
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/packages/shared/dist ./packages/shared/dist
+COPY --from=builder /app/packages/shared/package.json ./packages/shared/
+COPY --from=builder /app/packages/db/dist ./packages/db/dist
+COPY --from=builder /app/packages/db/package.json ./packages/db/
+COPY --from=builder /app/packages/queue/dist ./packages/queue/dist
+COPY --from=builder /app/packages/queue/package.json ./packages/queue/
+COPY --from=builder /app/apps/worker/dist ./apps/worker/dist
+COPY --from=builder /app/apps/worker/package.json ./apps/worker/
+
+CMD ["node", "apps/worker/dist/index.js"]