Dockerfile

FROM node:20-alpine

WORKDIR /app

# Dependências primeiro: cache do Docker acelera rebuilds
COPY package.json ./
RUN npm install --omit=dev && npm cache clean --force

COPY server.js ./
COPY public ./public
COPY private ./private

ENV NODE_ENV=production
ENV PORT=7860

EXPOSE 7860

CMD ["node", "server.js"]