Dockerfile

ARG NODE_VERSION=22-slim

FROM node:${NODE_VERSION} AS deps
WORKDIR /app

COPY package.json package-lock.json ./
RUN --mount=type=cache,target=/root/.npm npm ci --no-audit --no-fund

FROM node:${NODE_VERSION} AS builder
WORKDIR /app

ENV NODE_ENV=production

COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN npm run build

FROM node:${NODE_VERSION} AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV PORT=3003
ENV HOSTNAME=0.0.0.0

COPY --from=builder --chown=node:node /app/public ./public

RUN mkdir .next && chown node:node .next

COPY --from=builder --chown=node:node /app/.next/standalone ./
COPY --from=builder --chown=node:node /app/.next/static ./.next/static

USER node

EXPOSE 3003

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