# build environment FROM node:14-slim as builder WORKDIR /app # global args ARG APP_SUBFOLDER= COPY .npmrc .npmrc COPY package*.json ./ RUN npm install RUN rm -f .npmrc COPY . ./ # set the PUBLIC_URL environment variable ENV PUBLIC_URL /${APP_SUBFOLDER}/ # build the react app # RUN npm run build RUN if [ -z "$APP_SUBFOLDER" ]; then npm run build; else PUBLIC_URL=$PUBLIC_URL npm run build; fi # production environment FROM node:14-slim RUN printf '\n\n- Copy application files\n' COPY --from=builder /app/build ./application/${APP_SUBFOLDER} COPY --from=builder /app/build/index.html ./application/ COPY --from=builder /app/setenv.js ./application/setenv.js #install static server RUN npm install -g serve # environment variables ENV AUTHOR="Tudor Stanciu" ARG APP_VERSION=0.0.0 ENV APP_VERSION=${APP_VERSION} ARG APP_DATE="-" ENV APP_DATE=${APP_DATE} #set workdir to root WORKDIR / EXPOSE 80 CMD ["sh", "-c", "node setenv.js && serve -s application -p 80"]