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Use built-in node user in Docker runtime
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FROM node:20-alpine AS base
ENV NEXT_TELEMETRY_DISABLED=1
FROM base AS deps
WORKDIR /app
RUN apk add --no-cache libc6-compat
COPY package.json package-lock.json ./
RUN npm ci --legacy-peer-deps
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
# Hugging Face Space Variables are available as Docker build args.
# NEXT_PUBLIC_* values must be present during `next build` for client code.
ARG NEXT_PUBLIC_EMAILJS_SERVICE_ID
ARG NEXT_PUBLIC_EMAILJS_TEMPLATE_ID
ARG NEXT_PUBLIC_EMAILJS_PUBLIC_KEY
ENV NEXT_PUBLIC_EMAILJS_SERVICE_ID=${NEXT_PUBLIC_EMAILJS_SERVICE_ID}
ENV NEXT_PUBLIC_EMAILJS_TEMPLATE_ID=${NEXT_PUBLIC_EMAILJS_TEMPLATE_ID}
ENV NEXT_PUBLIC_EMAILJS_PUBLIC_KEY=${NEXT_PUBLIC_EMAILJS_PUBLIC_KEY}
RUN npm run build
FROM base AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=7860
ENV HOSTNAME=0.0.0.0
COPY --from=builder --chown=node:node /app/public ./public
COPY --from=builder --chown=node:node /app/.next/standalone ./
COPY --from=builder --chown=node:node /app/.next/static ./.next/static
USER node
EXPOSE 7860
HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \
CMD wget -qO- http://127.0.0.1:7860/ || exit 1
CMD ["node", "server.js"]