FROM node:alpine AS builder
WORKDIR /app
COPY . .
# Using yarn to install dependencies in CI will cause network timeout
# Refer to https://github.com/date-fns/date-fns/issues/1004
RUN yarn config set network-timeout 300000 \
  && yarn \
  && yarn build \
  # remove source maps - people like small image
  && rm public/*.map || true

FROM nginx:alpine
RUN rm -rf /usr/share/nginx/html/*
COPY --from=builder /app/public /usr/share/nginx/html
CMD ["nginx", "-g", "daemon off;"]