dockerfile

# syntax=docker.io/docker/dockerfile:1

FROM oven/bun:1 AS base

# Install dependencies only when needed
FROM base AS deps
WORKDIR /app

# Copy package files
COPY package.json bun.lock ./
COPY prisma ./prisma/

# Install dependencies
RUN bun install --no-save

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

# Generate Prisma client and build Next.js
RUN bun run build

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

ENV NODE_ENV=production

RUN groupadd --system --gid 1001 nodejs || addgroup -g 1001 -S nodejs
RUN useradd --system --uid 1001 -g nodejs nextjs || adduser -u 1001 -D -S -G nodejs nextjs

COPY --from=builder /app/public ./public

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
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"

# server.js is created by next build from the standalone output
CMD ["node", "server.js"]