container lifecycle management

gateway/Dockerfile

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+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+COPY tsconfig.json ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy source
+COPY src ./src
+
+# Build
+RUN npm run build
+
+# Production image
+FROM node:22-alpine
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install production dependencies only
+RUN npm ci --omit=dev
+
+# Copy built application
+COPY --from=builder /app/dist ./dist
+
+# Create non-root user
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nodejs -u 1001
+
+USER nodejs
+
+EXPOSE 3000
+
+CMD ["node", "dist/main.js"]