Dockerfile

# Multi-stage build for financial forecast app

# Stage 1: Build frontend
FROM node:22-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source files
COPY . .

# Build frontend
RUN npm run build

# Stage 2: Production image
FROM node:22-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install only production dependencies
RUN npm ci --only=production

# Copy server files
COPY server ./server

# Copy built frontend from builder stage
COPY --from=builder /app/dist ./dist

# Create data directory
RUN mkdir -p /app/server/data

# Expose port
EXPOSE 3001

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "require('http').get('http://localhost:3001/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Set production environment
ENV NODE_ENV=production

# Start server
CMD ["npm", "start"]