Dockerfile

# Use the official Node.js runtime as base image
FROM node:20-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 package-lock.json* ./
RUN npm ci

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

# Copy package files and config files first (these change less frequently)
COPY package.json package-lock.json* ./
COPY next.config.js tsconfig.json tailwind.config.js postcss.config.js ./
COPY prisma.config.ts ./

# Copy Prisma schema (needed for generation)
COPY prisma ./prisma

# Generate Prisma Client (DATABASE_URL needed for schema validation, but not used for generation)
# Prisma is already installed from the deps stage via npm ci
RUN DATABASE_URL="file:./" npx prisma generate

# Copy source files (app, components, lib) - this layer will be cached if source doesn't change
COPY app ./app
COPY components ./components
COPY lib ./lib

# Create public directory if it doesn't exist (Next.js requires it)
RUN mkdir -p public

# Build Next.js app (only runs if source files changed)
ENV NEXT_TELEMETRY_DISABLED 1
RUN npm run 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

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

# Copy necessary files from builder (public directory is created in builder stage)
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
# Copy entire node_modules for Prisma CLI and all dependencies
COPY --from=builder --chown=nextjs:nodejs /app/node_modules ./node_modules
COPY --from=builder --chown=nextjs:nodejs /app/prisma ./prisma
COPY --from=builder --chown=nextjs:nodejs /app/package.json ./package.json

# Copy entrypoint script
COPY --chown=nextjs:nodejs docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh

# Switch to nextjs user
USER nextjs

EXPOSE 3000

ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]