FROM node:20-alpine AS deps
WORKDIR /app
COPY package.json ./
RUN npm install --omit=dev

FROM node:20-alpine
WORKDIR /app

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

RUN mkdir -p /data/files /data/queue /data/pairing \
    && chown -R node:node /data

USER node

EXPOSE 3000
CMD ["node", "src/index.js"]