# Production Dockerfile
FROM node:20-alpine AS base

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

# Install pnpm
RUN corepack enable pnpm

COPY package.json pnpm-lock.yaml* ./
RUN pnpm i --frozen-lockfile

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

# Environment variables must be present at build time
# Disable telemetry during build
ENV NEXT_TELEMETRY_DISABLED=1

RUN 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

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

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