Dockerfile.production

# syntax=docker/dockerfile:1

# ── Stage 1: Install dependencies ────────────────────────────────────
FROM node:20-alpine AS deps
WORKDIR /app

RUN apk add --no-cache libc6-compat

COPY package.json package-lock.json .npmrc ./
RUN npm ci --ignore-scripts

# ── Stage 2: Build the application ───────────────────────────────────
FROM node:20-alpine AS builder
WORKDIR /app

COPY --from=deps /app/node_modules ./node_modules
COPY package.json package-lock.json ./

# Copy source code and config
COPY src/ ./src/
COPY public/ ./public/
COPY tsconfig.json ./
COPY prisma/ ./prisma/
COPY config/next.config.mjs ./next.config.mjs

# Generate Prisma client
RUN npx prisma generate

ARG NODE_ENV=production
ARG NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=${NODE_ENV}
ENV NEXT_TELEMETRY_DISABLED=${NEXT_TELEMETRY_DISABLED}

# Clear DD/tracing env vars to prevent dd-trace side effects during build
ENV DD_API_KEY=""
ENV DD_TRACE_ENABLED=false
RUN npx next build --webpack

# ── Stage 3: Production runtime ──────────────────────────────────────
FROM node:20-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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

# Copy standalone output (generated by output: 'standalone' in next.config)
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

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