feat: add dockerfile

Dockerfile

@@ -0,0 +1,76 @@
+# Development stage - for docker-compose development with hot reload
+FROM node:20-alpine AS development
+WORKDIR /app
+
+# Install pnpm globally
+RUN npm install -g pnpm
+
+# Copy package files for dependency installation
+COPY package*.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+# Copy source code
+COPY . .
+
+# Expose port
+EXPOSE 3000
+
+# Use development command with hot reload
+CMD ["pnpm", "dev"]
+
+# Builder stage - for production build
+FROM node:20-alpine AS builder
+WORKDIR /app
+
+# Install pnpm globally
+RUN npm install -g pnpm
+
+# Copy package files
+COPY package*.json pnpm-lock.yaml ./
+
+# Install all dependencies (including dev dependencies for build)
+RUN pnpm install --frozen-lockfile
+
+# Copy source code
+COPY . .
+
+# Build TypeScript to JavaScript
+RUN pnpm build
+
+# Production stage - optimized final image
+FROM node:20-alpine AS production
+WORKDIR /app
+
+# Create non-root user for security
+RUN addgroup -g 1001 -S nodejs && adduser -S nodejs -u 1001
+
+# Install pnpm globally
+RUN npm install -g pnpm
+
+# Copy package files
+COPY --from=builder /app/package*.json ./
+COPY --from=builder /app/pnpm-lock.yaml ./
+
+# Install only production dependencies
+RUN pnpm install --prod --frozen-lockfile
+
+# Copy built application
+COPY --from=builder /app/dist ./dist
+
+# Create required directories and set ownership
+RUN mkdir -p logs && chown -R nodejs:nodejs /app
+
+# Switch to non-root user
+USER nodejs
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
+  CMD node -e "require('http').request('http://localhost:3000/health', (res) => { \
+    process.exit(res.statusCode === 200 ? 0 : 1) \
+  }).on('error', () => process.exit(1)).end()"
+
+# Start the application
+CMD ["node", "dist/server.js"]