network-resurrector/dockerfile

# 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"]