Docker integration

.dockerignore

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+node_modules
+dist
+npm-debug.log
+.git
+.gitignore
+.env
+*.md
+.DS_Store

Dockerfile

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+FROM node:18-alpine
+
+WORKDIR /app
+
+# Dependencies installieren
+COPY package*.json ./
+RUN npm ci --only=production
+
+# Source kopieren und builden
+COPY tsconfig.json ./
+COPY src ./src
+RUN npm run build
+
+# Aufräumen - nur dist und node_modules behalten
+RUN rm -rf src tsconfig.json
+
+# Port freigeben
+EXPOSE 3000
+
+# Healthcheck
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1
+
+# Starten
+CMD ["node", "dist/index.js"]

docker-compose.yml

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+services:
+  qr-invoice:
+    build: .
+    container_name: qr-invoice-service
+    ports:
+      - "3050:3000"
+    environment:
+      - NODE_ENV=production
+      - PORT=3000
+      - HOST=0.0.0.0
+      - LOG_LEVEL=info
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000/health"]
+      interval: 30s
+      timeout: 3s
+      retries: 3
+      start_period: 5s