Nextjs Bun

Dockerfile

FROM oven/bun AS base

# Install dependencies only when needed
FROM base AS deps

WORKDIR /app

# Install dependencies
COPY package.json bun.lockb ./
RUN bun install --frozen-lockfile

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

# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Disable telemetry during the build
ENV NEXT_TELEMETRY_DISABLED 1

RUN bun run build

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

ENV NODE_ENV production

# Disable telemetry
ENV NEXT_TELEMETRY_DISABLED 1

RUN adduser --system --uid 1001 nextjs

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

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

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=nextjs:bun /app/.next/standalone ./
COPY --from=builder --chown=nextjs:bun /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT 3000

# Set hostname to localhost
ENV HOSTNAME "0.0.0.0"

CMD ["bun", "server.js"]

next.config.js

/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  output: "standalone",
};

module.exports = nextConfig;