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58 lines
1.5 KiB
Docker
58 lines
1.5 KiB
Docker
# ---------- build ----------
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FROM docker.io/node:20-alpine AS builder
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WORKDIR /app
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# Clean any existing cache before starting
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RUN npm cache clean --force
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# install deps (needs dev deps for build)
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COPY package*.json ./
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RUN npm cache clean --force && npm install --prefer-offline --no-audit --no-fund && npm cache clean --force
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# app source
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COPY . .
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# disable telemetry; let Next control NODE_ENV during build
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ENV NEXT_TELEMETRY_DISABLED=1
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# Build-time environment variables for Next.js public config
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ARG NEXT_PUBLIC_API_HOST=127.0.0.1
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ARG NEXT_PUBLIC_API_PORT=3001
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ENV NEXT_PUBLIC_API_HOST=${NEXT_PUBLIC_API_HOST}
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ENV NEXT_PUBLIC_API_PORT=${NEXT_PUBLIC_API_PORT}
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RUN npm run build
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# Clean up unnecessary files to save space after build
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RUN rm -rf node_modules .next/cache
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# ---------- runner (standalone) ----------
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FROM docker.io/node:20-alpine AS runner
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WORKDIR /app
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# runtime env
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ENV NODE_ENV=production
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ENV NEXT_TELEMETRY_DISABLED=1
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ENV PORT=3000
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ENV HOSTNAME=127.0.0.1
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# minimal probe tool
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RUN apk add --no-cache wget
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# copy standalone artifacts
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COPY --from=builder /app/public ./public
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COPY --from=builder /app/.next/standalone ./
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COPY --from=builder /app/.next/static ./.next/static
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# non-root (optional)
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RUN addgroup --system --gid 1001 nodejs \
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&& adduser --system --uid 1001 nextjs \
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&& chown -R nextjs:nodejs /app
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USER nextjs
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EXPOSE 3000
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# healthcheck (no /api prefix)
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD wget -qO- http://127.0.0.1:${PORT}/ >/dev/null 2>&1 || exit 1
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CMD ["node", "server.js"]
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