Dockerfile

# Optimized Dockerfile with standalone output
# 3-stage build: deps -> builder -> runner

FROM node:22.17.0-alpine AS base

# Make pnpm available in all subsequent stages
RUN corepack enable pnpm

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

# Install dependencies with pnpm
COPY package.json pnpm-lock.yaml ./
RUN pnpm 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
# Uncomment the following line in case you want to disable telemetry during the build.
# ENV NEXT_TELEMETRY_DISABLED 1

RUN pnpm run build

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

ENV NODE_ENV production
# Uncomment the following line in case you want to disable telemetry during runtime.
# ENV NEXT_TELEMETRY_DISABLED 1

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

# Copy runtime dependencies from the builder image
COPY --from=builder --chown=nextjs:nodejs /app/node_modules ./node_modules

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

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

# 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

# Copy source files needed for migrations (payload.config.ts and dependencies)
COPY --from=builder --chown=nextjs:nodejs /app/src ./src
COPY --from=builder --chown=nextjs:nodejs /app/next.config.mjs ./next.config.mjs
COPY --from=builder --chown=nextjs:nodejs /app/tsconfig.json ./tsconfig.json

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

USER nextjs

EXPOSE 3000

ENV PORT 3000

# Use entrypoint to run migrations before starting the app
# ENTRYPOINT ["/app/docker-entrypoint.sh"]
CMD ["node", "server.js"]