Dockerfile

# Build stage
FROM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source code
COPY . .

# Build the application
RUN npm run build

# Production stage
FROM node:20-alpine AS runner

WORKDIR /app

# Set environment to production
ENV NODE_ENV=production

# Copy package files
COPY package*.json ./

# Install production dependencies only
RUN npm ci --production

# Copy built application from builder
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nextjs -u 1001

# Change ownership
RUN chown -R nextjs:nodejs /app

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Set environment variables
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Start the application
CMD ["npm", "start"]