Dockerfile

# syntax=docker/dockerfile:1
# MedASR Bench — Hugging Face Docker Space (CPU). Next.js 16 standalone output.
# The Space runtime requires the container to run as uid 1000 and listen on
# app_port (3000, set in README.md front-matter).

# ---- deps: install full deps for the build ----
FROM node:22-alpine AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci

# ---- builder: produce .next/standalone ----
FROM node:22-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

# ---- runner: minimal self-contained image ----
FROM node:22-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production \
    NEXT_TELEMETRY_DISABLED=1 \
    PORT=3000 \
    HOSTNAME=0.0.0.0

# node:alpine already ships a `node` user at uid 1000 — exactly what HF Spaces
# expect — so no custom user is created (uid 1000 is already taken).
# server.js lives at the root of .next/standalone; public/ and .next/static
# are NOT bundled into standalone and must be copied in explicitly.
COPY --from=builder --chown=node:node /app/.next/standalone ./
COPY --from=builder --chown=node:node /app/.next/static ./.next/static
COPY --from=builder --chown=node:node /app/public ./public

USER node
EXPOSE 3000
CMD ["node", "server.js"]