64 lines
2.9 KiB
Docker
64 lines
2.9 KiB
Docker
# ═══════════════════════════════════════════════════════════════════════════
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# Stage 1 – deps: install node_modules with full cache mount
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# (This layer is only re-run when package.json / package-lock.json changes)
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# ═══════════════════════════════════════════════════════════════════════════
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FROM node:20-alpine AS deps
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RUN apk add --no-cache libc6-compat
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WORKDIR /app
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COPY package.json package-lock.json* ./
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# --mount=type=cache keeps the npm cache on the host between builds
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# --prefer-offline avoids network fetches when the package is already cached
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RUN --mount=type=cache,target=/root/.npm \
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npm ci --prefer-offline
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# ═══════════════════════════════════════════════════════════════════════════
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# Stage 2 – builder: compile Next.js with build-cache mount for turbo-speed
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# ═══════════════════════════════════════════════════════════════════════════
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FROM node:20-alpine AS builder
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WORKDIR /app
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COPY --from=deps /app/node_modules ./node_modules
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COPY . .
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ENV NEXT_TELEMETRY_DISABLED=1
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ENV NODE_ENV=production
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ARG NEXT_PUBLIC_API_URL=http://backend:8000
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ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
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# Mount the Next.js build cache so incremental compilation is reused
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RUN --mount=type=cache,target=/app/.next/cache \
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npm run build
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# ═══════════════════════════════════════════════════════════════════════════
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# Stage 3 – runner: minimal production image (no node_modules, no sources)
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# ═══════════════════════════════════════════════════════════════════════════
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FROM node:20-alpine AS runner
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WORKDIR /app
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ENV NODE_ENV=production
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ENV NEXT_TELEMETRY_DISABLED=1
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RUN addgroup --system --gid 1001 nodejs && \
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adduser --system --uid 1001 nextjs
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# Copy only the standalone server output (no full node_modules)
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COPY --from=builder /app/public ./public
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RUN mkdir .next && chown nextjs:nodejs .next
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COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
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COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
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USER nextjs
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EXPOSE 3000
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ENV PORT=3000
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ENV HOSTNAME="0.0.0.0"
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CMD ["node", "server.js"]
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