Dockerfile

# Use the official Node.js runtime as the base image
FROM node:18-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Copy package files
COPY package.json pnpm-lock.yaml* ./

# Enable pnpm and install dependencies
RUN corepack enable pnpm && \
    pnpm install --prod --frozen-lockfile

# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Set environment variables for build
ENV NEXT_TELEMETRY_DISABLED 1
ENV NODE_ENV production

# Enable pnpm and build the application
RUN corepack enable pnpm && \
    pnpm build

# Production image, copy all the files and run next
FROM base AS runner
WORKDIR /app

ENV NODE_ENV production
ENV NEXT_TELEMETRY_DISABLED 1

# Create a non-root user
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy the public folder
COPY --from=builder /app/public ./public

# Set the correct permission for prerender cache
RUN mkdir .next
RUN chown nextjs:nodejs .next

# Copy the built application
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

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

# Development Stage
FROM base AS development
WORKDIR /app

# Install dependencies needed for development
RUN apk add --no-cache libc6-compat

# Enable pnpm
RUN corepack enable pnpm

# Copy package files
COPY package.json pnpm-lock.yaml* ./

# Install all dependencies (including dev)
RUN pnpm install

# Copy source code
COPY . .

# Expose port
EXPOSE 3000

# Start development server using standard Next.js
CMD ["pnpm", "dev:next"]