FROM node:20-alpine

WORKDIR /app

COPY package.json package-lock.json ./
RUN npm ci --omit=dev

COPY src/ ./src/
COPY wiki/ ./wiki/

ENV NODE_ENV=production \
    PORT=3000 \
    HOST=0.0.0.0 \
    WIKI_PATH=/app/wiki

EXPOSE 3000

USER node

HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
  CMD wget -qO- http://127.0.0.1:3000/healthz >/dev/null 2>&1 || exit 1

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