FROM node:lts-alpine
RUN addgroup -S app && adduser -S app -G app

WORKDIR /app

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

COPY . .
RUN awk -F'"' '/"version"/{printf "const VERSION = \"%s\";\n", $4; exit}' \
    package.json > js/version.js

RUN chown -R app:app /app
USER app

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