ARG NODE_IMAGE=node
FROM ${NODE_IMAGE}:lts AS build
WORKDIR /app
ENV NODE_ENV=production
RUN set -eux; \
  npm install --production tkserver@latest; \
  mkdir -p data
FROM ${NODE_IMAGE}:lts-alpine
WORKDIR /app
ENV NODE_ENV=production
COPY --from=build /app .
EXPOSE 8080
CMD ["/app/node_modules/.bin/tkserver"]