Dockerfile

FROM node:20-alpine AS base

# Dependencies stage
FROM base AS deps
WORKDIR /app
RUN apk add --no-cache libc6-compat python3 make g++
COPY package.json package-lock.json* ./
RUN npm ci

# Builder stage
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED 1

# Build the application
RUN npm run build

# Runner stage
FROM base AS runner
WORKDIR /app

ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy necessary files
COPY --from=builder /app/public ./public
COPY --from=builder /app/package.json ./package.json

# Create .next directory and set permissions
RUN mkdir .next
RUN chown nextjs:nodejs .next

# Copy standalone build and static files
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Set user
USER nextjs

# Expose port and set environment variables
EXPOSE 3000
ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

# Start the application
CMD ["node", "server.js"]